Last Updated: 2024/11/04

酸化ケイ素 (JP Patent Analysis Report) (JP SDGs Patent Report)

The Technical Field "酸化ケイ素" had 40 patent application filings in the most recent period (2023-01-01 to 2023-01-31). This is a significantly decreased of -43 filings (-51.8%) over 83 they had in the same period of the previous year (2022-01-01 to 2022-01-31). This report also includes technical terms related to " Si酸化物 ", " シリコン酸化物 ", " 酸化けい素 ", " 酸化シリコン ", " 酸化珪素 " in the search set.

The highest number of filings in 2014 with 1,680 cases, and their lowest number in 2022 with 982 cases.

The mean of the number of filings over the last 5 years (2018 to 2023, 6,866 cases in total) is 1,144, and the median is 1,241. The coefficient of variation (standard deviation/mean) is 0.4, and there have been big fluctuations in the number of filings from year to year.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 1,144 patents
Std Dev 409
COV 0.4

Filing trends for the last 3 years
Year Cases YOY
2022 year 982 cases -18.84 %
2021 year 1,210 cases -4.87 %
2020 year 1,272 cases -13.41 %

This report provides the latest patent analysis information (the IP landscape, including a patent map) on the patent search results of the JP patent database for 酸化ケイ素 for the period of the last 10 years (2014-01-01 to 2024-09-30). You can compare the information in this report with the trends in your competitors’ patent filings and technologies, and use it to search for important patents.

This service provides, free of charge, a patent analysis report based on the latest patent data (Japanese, U.S., European, and PCT application publications) for use in patent searches, patent analysis, and IP landscaping. The service is offered by "Patent Integration" a firm specializing in patent search/patent analysis.

This report includes basic information to help you understand the IP strategy and management of 酸化ケイ素, such as changes in the number of patents/patent applications they have filed, comparisons of the numbers of patents/patent applications filed by their peers and competitors, their top coapplicants (joint research partners, alliance partners), and their most important patents. It can be used in various intellectual property business operations such as IP landscaping, patent search/patent analysis, preparation of intellectual property business evaluation reports, selection of M&A candidates, and selection of alliance partners.

Article supervision: Patent attorney Yoshiyuki Ose
Article supervised by: Yoshiyuki Ose (Japanese Patent Attorney)    

He is a patent attorney at a patent office. He specializes in invention counseling, patent filing, and intellectual property strategies for start-up companies and new businesses in the fields of software, information technology and artificial intelligence. He runs a patent course for beginners on Udemy, an online course provider.

After studying physics at the University of Tokyo as a doctoral student, he was engaged in intellectual property analysis and technology trend research as an in-house patent attorney at a precision equipment manufacturer and at Toyota Central R&D Labs. Inc..

Introduction

The concept of the "IP landscape" (IPL) has been attracting attention recently.

An IP landscape is not limited to patent information, but also integrates and analyzes business information (e.g., non-patent information such as papers, news releases, stock information, and market information). Intellectual-property-based business management is realized through the analysis of intellectual property information applied to the formulation of management strategies and business strategies. This is a comprehensive approach that includes but not limited to planning of open and closed strategies, selecting M&A candidates, searching for alliance partners, and formulating intellectual property strategies, through the exploitation of intellectual property information.

IP landscaping usually includes patent search and patent analysis. In patent search and patent analysis, it is important to grasp the market position of each company and the overall technological trends and development trends for each technology. More specifically, it is important to understand what intellectual property your own company and other companies hold, what the strengths and weaknesses of other companies are, and how other companies are trying to exploit their intellectual property. In other words, it is important to understand both the business strategy and the intellectual property strategy of each company.

After reading this search report, you may be interested in more detailed patent searches and patent analysis. We offer a service called Patent Integration, which is an integrated patent search and patent analysis service. With reasonable pricing and a simple user interface such that even beginners can quickly search for and analyze patent information by company or technology from a web browser, please consider using it for detailed patent searches, patent analysis, and IP landscaping.

Patent Integration has a patent-landscaping function that can visually represent a set of tens of thousands of patents/patent applications. This allows you to convincingly show the technical positions of your company and its competitors to your management and business strategists in order to formulate management strategies and business strategies.

Foreign Patent Analysis Report

By clicking, you can check the patent application trends in each country of 酸化ケイ素.

Patent Filing Trends in Each Country

Foreign Patent Analysis Report

The following foreign patent analysis reports have been found for 酸化ケイ素. The trends of patent filings of 酸化ケイ素 for each country can be found by clicking on the Applicant/Patent Holder name next to each country.

Patent Filing Trends in Each Country
Country Applicant / Patent Holder

酸化ケイ素, Changes in the Number of JP Patents/Patent Applications

The changes in the number of patent filings of 酸化ケイ素 over the last 20 years (JP) are shown below.

The change in the number of patents/patent applications is the most basic index in patent analysis. By examining the change in the number of patents/patent applications, you can see the status of technological development and R&D focus for each company or technology. It should be noted that since there is a one and a half year lag between the filing and the laying open of patent applications, it is not possible to analyze the situation more recently than one and half years prior to the present.

In this report, you can only see the change in the number of patents/patent applications by company or technology, whereas Patent Integration allows you to quickly compare the number of patent applications with your competitors in each technical field by cross-referencing with other keywords and patent classifications.

Counting of the Number of Cases using the Patent Mapping Function

By examining the change in the number of patents/patent applications, you can see the status of technological development and R&D focus for each company or technology.

You can select a graph type from the menu on the upper left. Data can be output as a file to the clipboard, or in CSV format or TSV format. You can also output graph images as files in the SVG, PNG, and JPG formats. For the terms of use when using the data, please see "About this Site."

Search Set (Analysis Patents)

This patent analysis report was created for a patent search set of 13,222 cases retrieved by applying the following search formula and analysis period to the following patent database. Patent information such as a patent analysis result, a patent map, and a patent landscape can be freely used for patent searches, analysis, and work on intellectual property strategies, including IP landscaping.

Patent Database
JP Publications/Granted Patents
Patent Search Formula
Technical Field:
酸化ケイ素
Patent Analysis Period
2014-01-01〜2024-09-30
Number of Patents
13,222 patents

Analysis results are determined on the basis of patent gazette data issued by the patent office in each country.

Same industry / competition company information (JP)

The number of patents and changes in the number of patents of other companies (competitors) in the same industry as 酸化ケイ素 are shown below.

Comparison of changes in the number of patents with peers and competitors is an important analytical index for understanding the intellectual property strategies of each company. By checking the transition of the number of patents for each company / competitor, you can check the status of focus on technology development and R&D for each company / technology.

It should be noted that patents have a time lag of one and a half years from filing to publication, so it is not possible to analyze the situation more recent than one and a half years.

If you want to find out more information, " Patent Integration , You can compare the number of patent applications with competitors in each technical field in a short time by multiplying with other keywords and patent classifications.Please use it for more detailed patent information analysis such as selection of M&A candidate destinations and alliance destinations.

Introduction of patent search function

Competitive analysis can be performed in a short time by using various search functions such as applicant, filing date, and similar patent search.

Trends in filing of joint patent applications in the last 3 years (2022 to 2024).

Comparing the number of applications of each company, TOPPANホールディングス株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 38 cases, followed by キヤノン株式会社 with 29 cases.

Trends in filing of joint patent applications for the target period (2014 to 2024).

Comparing the number of applications of each company, 株式会社半導体エネルギー研究所 has the highest number of joint applications in the last for the target period (2014 to 2024) with 488 cases, followed by キヤノン株式会社 with 250 cases.

Same industry / competition company, Change in the Number of JP Patents

Below is a patent map showing changes in the number of applications for JP patents of 11 companies in the same industry over the past 20 years.

You can select a graph type from the menu on the upper left. Data can be output as a file to the clipboard, or in CSV format or TSV format. You can also output graph images as files in the SVG, PNG, and JPG formats. For the terms of use when using the data, please see "About this Site."

Top company information (JP)

The number of patents and changes in the number of patents of other companies (competitors) in the same industry as 酸化ケイ素 are shown below.

Comparison of changes in the number of patents with peers and competitors is an important analytical index for understanding the intellectual property strategies of each company. By checking the transition of the number of patents for each company / competitor, you can check the status of focus on technology development and R&D for each company / technology.

It should be noted that patents have a time lag of one and a half years from filing to publication, so it is not possible to analyze the situation more recent than one and a half years.

If you want to find out more information, " Patent Integration , You can compare the number of patent applications with competitors in each technical field in a short time by multiplying with other keywords and patent classifications.Please use it for more detailed patent information analysis such as selection of M&A candidate destinations and alliance destinations.

Search for Coapplicants

Patent integration allows you to find coapplicants in a short amount of time.

Trends in filing of joint patent applications in the last 3 years (2022 to 2024).

Among the top coapplicants, セイコーエプソン株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 26 cases, followed by 株式会社東芝 with 14 cases.

Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Name Cases
セイコーエプソン株式会社 26 cases
株式会社東芝 14 cases
株式会社半導体エネルギー研究所 5 cases
パナソニックホールディングス株式会社 2 cases
日本電気株式会社 1 cases

Trends in filing of joint patent applications for the target period (2014 to 2024).

Among the top coapplicants, 株式会社半導体エネルギー研究所 has the highest number of joint applications in the last for the target period (2014 to 2024) with 488 cases, followed by セイコーエプソン株式会社 with 248 cases.

Top company, Change in the Number of JP Patents

Below is a ranking of the number of JP patent applications by 酸化ケイ素’s top 7 coapplicants over the last 20 years.

Below is a patent map showing the changes in the numbers of JP patent filings by 酸化ケイ素’s top 7 coapplicants over the last 20 years.

You can select a graph type from the menu on the upper left. Data can be output as a file to the clipboard, or in CSV format or TSV format. You can also output graph images as files in the SVG, PNG, and JPG formats. For the terms of use when using the data, please see "About this Site."

Top company Details (JP)

Trends in filing of joint patent applications with 株式会社半導体エネルギー研究所

酸化ケイ素 filed 488 joint applications with 株式会社半導体エネルギー研究所 for the analysis period (2014 to 2024).

The mean of the number of filings over the last 5 years (2018 to 2023, 104 cases in total) is 17.3, and the median is 2.5. The coefficient of variation (standard deviation/mean) is 1.3, and there have been very big fluctuations in the number of filings from year to year.

The highest number of filings in 2014 with 114 cases, and their lowest number in 2021 with 0 cases.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 17.3 patents
Std Dev 22.8
COV 1.3
Filing trends for the last 3 years
Year Cases YOY
2022 year 1 cases -
2021 year 0 cases -100 %
2020 year 1 cases -97.6 %

Trends in filing of joint patent applications with セイコーエプソン株式会社

酸化ケイ素 filed 248 joint applications with セイコーエプソン株式会社 for the analysis period (2014 to 2024).

The mean of the number of filings over the last 5 years (2018 to 2023, 129 cases in total) is 21.5, and the median is 23.0. The coefficient of variation (standard deviation/mean) is 0.3, and there have been big fluctuations in the number of filings from year to year.

The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2014 with 41 cases, and their lowest number in 2022 with 19 cases.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 21.5 patents
Std Dev 7.3
COV 0.3
Filing trends for the last 3 years
Year Cases YOY
2022 year 19 cases -29.63 %
2021 year 27 cases +17.39 %
2020 year 23 cases -23.33 %

Trends in filing of joint patent applications with 株式会社東芝

酸化ケイ素 filed 233 joint applications with 株式会社東芝 for the analysis period (2014 to 2024).

The mean of the number of filings over the last 5 years (2018 to 2023, 100 cases in total) is 16.7, and the median is 19.0. The coefficient of variation (standard deviation/mean) is 0.5, and there have been big fluctuations in the number of filings from year to year.

The highest number of filings in 2014 with 41 cases, and their lowest number in 2022 with 12 cases.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 16.7 patents
Std Dev 8.1
COV 0.5
Filing trends for the last 3 years
Year Cases YOY
2022 year 12 cases -33.3 %
2021 year 18 cases -10.00 %
2020 year 20 cases 0

Trends in filing of joint patent applications with パナソニックホールディングス株式会社

酸化ケイ素 filed 16 joint applications with パナソニックホールディングス株式会社 for the analysis period (2014 to 2024).

The mean of the number of filings over the last 5 years (2018 to 2023, 9 cases in total) is 1.5, and the median is 1.5. The coefficient of variation (standard deviation/mean) is 0.6, and there have been relatively large fluctuations in the number of filings from year to year.

The highest number of filings in 2019 with 3 cases, and their lowest number in 2021 with 1 cases.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 1.5 patents
Std Dev 1.0
COV 0.6
Filing trends for the last 3 years
Year Cases YOY
2022 year 2 cases +100 %
2021 year 1 cases 0
2020 year 1 cases -66.7 %

Trends in filing of joint patent applications with ソニーグループ株式会社

酸化ケイ素 filed 51 joint applications with ソニーグループ株式会社 for the analysis period (2014 to 2024).

The mean of the number of filings over the last 5 years (2018 to 2023, 14 cases in total) is 2.3, and the median is 1.0. The coefficient of variation (standard deviation/mean) is 1.3, and there have been very big fluctuations in the number of filings from year to year.

The highest number of filings in 2014 with 15 cases, and their lowest number in 2022 with 0 cases.

Filing information for the last 5 years (2018 to 2023)
Index Value
Average 2.3 patents
Std Dev 3.1
COV 1.3
Filing trends for the last 3 years
Year Cases YOY
2021 year 1 cases 0
2020 year 1 cases -88.9 %
2019 year 9 cases +200 %

Information on important patents (JP)

The following shows JP patents held by 酸化ケイ素 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and 酸化ケイ素’s JP patents/patent applications of high importance cited by Examiners in patent examination processes.

By noting the most important patents, you can obtain knowledge of the competitive business environment in which 酸化ケイ素 is placed (e.g., whether it is a fiercely competitive environment or an oligopolistic market and the like). In general, it can be understood that a company with a large number of demands for invalidation trials is developing their business in a business environment where IP disputes are common.

If you want to search for more detailed information, you can use Patent Integration to retrieve and download by company cited patents/patent applications or patents undergoing invalidation trials. You can quickly extract important patents from a patent set that includes multiple competitors by cross-referencing with other keywords and patent classifications. Please consider using it for searches for important patents/patent applications.

Search for Information on Important Patents

You can quickly search for important patents/patent applications, such as patents/patent applications that were cited many times and patents that have had invalidation trials demanded against them many times.

Glossary

Cited
Indicates that the patent/patent application has been cited (by Examiners) in notices of reasons for rejection in the examination process of other (Japanese, U.S., or European) patent applications. The higher the number of citations, the more important the patent/patent application is considered to be.
Request for invalidation trial
Indicates that a third party has requested a procedure to invalidate the patent. It is likely to affect the business of third parties and is considered to be of high importance.
Opposition
Indicates that a third party has filed a petition with the Patent Office to hear the validity of the patent again. Like the trial for invalidation, it is considered to be of high importance.
Information provision
Indicates that a third party has provided the Patent Office with useful information for examination for the patent filed. It is usually considered to be of high importance because it is done to prevent the patent from being granted.
Browsing request
Indicates that a third party has requested the Patent Office to view the patent bag (a set of documents exchanged between the Patent Office and the applicant). The bag is often checked prior to trial for invalidation, opposition, and provision of information, and is considered to be a highly important patent.

Invalidationed Trial cases

Top Patents/Patent Applications with the Highest Number of Invalidationed Trial

Of the patent applications filed in the last 10 years (2014-10-01 to 2024-09-30), 1 patents/patent applications were invalidation trial more than once in the examination process of other patent applications. The mean of the number of invalidation trial is 1.0. The most invalidation trial patent is 特許6093829 "ランタン化合物を含む医薬組成物" (1 times) .

Top Patents/Patent Applications with the Highest Number of Invalidation Trial over a Period of 10 Years (2014-10-01 ~ 2024-09-30)
- No. Title
1 特許6093829 ランタン化合物を含む医薬組成物 1 times

Oppositioned cases

List of latest Oppositioned patents

In the last 3 years (2021-10-01 ~ 2024-09-30), there were 34 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7425603 "医薬組成物" (Opposition day 2024-07-29) , next is 特許7425560 "固形製剤の製造方法" (Opposition day 2024-07-22) .

Most recent Opposition (2021-10-01 to 2024-09-30)
- No. Title Opposition days
1 特許7425603 医薬組成物 2024-07-29
2 特許7425560 固形製剤の製造方法 2024-07-22
3 特許7408663 改善された耐高温性を有する石膏建築材料 2024-07-05
4 特許7402687 医薬組成物 2024-06-21
5 特許7377425 バリアフィルム、積層体及び包装袋 2024-04-12
6 特許7354277 シンチレータアレイ、シンチレータアレイの製造方法、放射線検出器、および放射線検査装置 2024-03-29
7 特許7329528 自己消火性樹脂成形体 2024-02-16
8 特許7319484 蓄電デバイス用外装材および蓄電デバイス 2024-02-01
9 特許7321818 シンチレータユニット、及び放射線検出器 2024-01-30
10 特許7261630 研磨用組成物、研磨用組成物の製造方法、研磨方法、および半導体基板の製造方法 2023-10-20

Show 5 patents  

Protested cases

List of latest Protested patents

In the last 3 years (2021-10-01 ~ 2024-09-30), there were 93 patents Protest from third parties. The average number of Protest is 1.5 times. The most recently Protest patent is 特開2024-086792 "積層体及び包装袋" (Protest day 2024-09-18) , next is 特開2021-091202 "ガスバリアフィルム" (Protest day 2024-08-09) .

Most recent Protest (2021-10-01 to 2024-09-30)
- No. Title Protest days
1 特開2024-086792 積層体及び包装袋 2024-09-18
2 特開2021-091202 ガスバリアフィルム 2024-08-09
3 特表2023-506487 低酸化物トレンチディッシングシャロートレンチアイソレーション化学的機械平坦化研磨 2024-08-08
4 特開2024-056010 セパレータ、それを含む二次電池および装置 2024-08-06
5 特開2021-040132 シリコン酸化物被覆Fe系軟磁性粉末およびその製造方法 2024-08-02
6 特開2024-094345 包装フィルム及び包装袋 2024-07-22
7 特表2023-525987 固体粘着性組成物 2024-07-18
8 特開2022-107930 ガスバリア性フィルム、積層体、および包装材料 2024-07-18
9 特表2023-508288 反応性希釈剤を含むシリコーンフリーサーマルインターフェース材料 2024-07-05
10 特開2021-169184 積層体、積層体の製造方法、および有機素子 2024-07-03
11 特開2021-169185 積層体、積層体の製造方法、光学積層体およびフレキシブルディスプレイ 2024-06-26
12 特表2023-521429 湿った細粒を含む様々な供給源からの廃棄プラスチックのケミカルリサイクル 2024-06-19
13 特表2023-550013 共形性酸化ケイ素膜の堆積 2024-06-14
14 特開2024-052887 石膏系建築材料 2024-06-13
15 特開2022-106122 ガスバリアフィルム及びガスバリアフィルムの製造方法 2024-06-10
16 特開2023-021389 混合セメント組成物、及びその製造方法 2024-06-08
17 特開2022-185386 包装材料および包装袋 2024-06-07
18 特開2021-194822 ガスバリア性フィルム 2024-06-05
19 特表2023-502070 研磨材製品及びその形成方法 2024-05-28
20 特許7522205 コート紙 2024-04-26

Show 15 patents  

Top Patents/Patent Applications with the Highest Number of Protested

Of the patent applications filed in the last 10 years (2014-10-01 to 2024-09-30), 197 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.5. The most protest patent is 特許6286383 "固形医薬組成物" (9 times) , and the next most protest patent is 特開2021-091202 "ガスバリアフィルム" (7 times) .

Top Patents/Patent Applications with the Highest Number of Protest over a Period of 10 Years (2014-10-01 ~ 2024-09-30)
- No. Title
1 特許6286383 固形医薬組成物 9 times
2 特開2021-091202 ガスバリアフィルム 7 times
3 特許6294943 固形医薬組成物 7 times
4 特開2021-194822 ガスバリア性フィルム 5 times
5 特開2021-169185 積層体、積層体の製造方法、光学積層体およびフレキシブルディスプレイ 5 times

Inspectioned cases

List of latest Inspectioned patents

In the last 3 years (2021-10-01 ~ 2024-09-30), there were 136 patents Inspection from third parties. The average number of Inspection is 1.6 times. The most recently Inspection patent is 特表2023-506487 "低酸化物トレンチディッシングシャロートレンチアイソレーション化学的機械平坦化研磨" (Inspection day 2024-09-06) , next is 特許7082235 "太陽電池及びその製造方法、太陽電池モジュール" (Inspection day 2024-09-03) .

Most recent Inspection (2021-10-01 to 2024-09-30)
- No. Title Inspection days
1 特表2023-506487 低酸化物トレンチディッシングシャロートレンチアイソレーション化学的機械平坦化研磨 2024-09-06
2 特許7082235 太陽電池及びその製造方法、太陽電池モジュール 2024-09-03
3 特許7174188 太陽電池及びその製造方法、太陽電池モジュール 2024-09-03
4 特表2022-504837 リチウムイオン電池におけるイオン液体電解質の性能向上方法 2024-09-03
5 特許7331232 太陽電池及びその製造方法、太陽電池モジュール 2024-09-03
6 特開2022-107930 ガスバリア性フィルム、積層体、および包装材料 2024-08-22
7 特開2024-094345 包装フィルム及び包装袋 2024-08-21
8 特開2021-040132 シリコン酸化物被覆Fe系軟磁性粉末およびその製造方法 2024-08-07
9 特開2021-169184 積層体、積層体の製造方法、および有機素子 2024-07-30
10 特表2023-525987 固体粘着性組成物 2024-07-24
11 特表2023-521429 湿った細粒を含む様々な供給源からの廃棄プラスチックのケミカルリサイクル 2024-07-19
12 特開2021-169185 積層体、積層体の製造方法、光学積層体およびフレキシブルディスプレイ 2024-07-16
13 特開2023-021389 混合セメント組成物、及びその製造方法 2024-07-05
14 特表2023-550013 共形性酸化ケイ素膜の堆積 2024-06-27
15 特開2022-180399 多重スペクトルセンサの応答バランス取り 2024-06-25
16 特開2021-091202 ガスバリアフィルム 2024-06-18
17 特開2022-185386 包装材料および包装袋 2024-06-18
18 特表2023-502070 研磨材製品及びその形成方法 2024-06-14
19 特開2022-166089 誘導透過フィルタ 2024-06-11
20 特許7522205 コート紙 2024-06-10

Show 15 patents  

Top Patents/Patent Applications with the Highest Number of Inspectioned

Of the patent applications filed in the last 10 years (2014-10-01 to 2024-09-30), 329 patents/patent applications were inspection more than once in the examination process of other patent applications. The mean of the number of inspection is 1.7. The most inspection patent is 特許6286383 "固形医薬組成物" (26 times) , and the next most inspection patent is 特許6294943 "固形医薬組成物" (22 times) .

Top Patents/Patent Applications with the Highest Number of Inspection over a Period of 10 Years (2014-10-01 ~ 2024-09-30)
- No. Title
1 特許6286383 固形医薬組成物 26 times
2 特許6294943 固形医薬組成物 22 times
3 特許6383755 透明プラスチック基材及びプラスチックレンズ 10 times
4 特許6093829 ランタン化合物を含む医薬組成物 9 times
5 特許7451977 バリア紙 8 times

Cited cases

Top Patents/Patent Applications with the Highest Number of Cited

Of the patent applications filed in the last 10 years (2014-10-01 to 2024-09-30), 2,799 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 3.0. The most cited patent is 特許6320282 "エッチング方法" (112 times) , and the next most cited patent is 特開2018-093487 "段状断面の圧電基板を備えたSAWフィルタ" (79 times) .

Top Patents/Patent Applications with the Highest Number of Cited over a Period of 10 Years (2014-10-01 ~ 2024-09-30)
- No. Title
1 特許6320282 エッチング方法 112 times
2 特開2018-093487 段状断面の圧電基板を備えたSAWフィルタ 79 times
3 特開2020-113939 弾性波装置 60 times
4 特許6478596 表示装置の作製方法 46 times
5 特許5910763 弾性波装置 35 times

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