曲率 (JP Patent Analysis Report)
The Technical Field "曲率" had 857 patent application filings in the most recent period (2022-01-01 to 2022-07-31). This is a significantly decreased of -310 filings (-26.6%) over 1,167 they had in the same period of the previous year (2021-01-01 to 2021-07-31).
The highest number of filings in 2017 with 2,962 cases, and their lowest number in 2022 with 1,151 cases.
The mean of the number of filings over the last 5 years (2018 to 2023, 10,971 cases in total) is 1,828, and the median is 2,098. 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.
| Index | Value |
|---|---|
| Average | 1,828 patents |
| Std Dev | 915 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 1,151 cases | -40.1 % |
| 2021 year | 1,923 cases | -15.36 % |
| 2020 year | 2,272 cases | -13.51 % |
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 曲率 for the period of the last 10 years (2014-01-01 to 2024-03-31). 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 曲率, 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.
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.
曲率, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 曲率 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.
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 22,101 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.
曲率
Related Patent Analysis Report
A patent aanlysis report on the following synonyms was found in the technical term "曲率".
- 曲率 (Main page / Including the following synonyms)
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 曲率 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.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Comparing the number of applications of each company, キヤノン株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 56 cases, followed by トヨタ自動車株式会社 with 24 cases.
Trends in filing of joint patent applications for the target period (2014 to 2024).
Comparing the number of applications of each company, キヤノン株式会社 has the highest number of joint applications in the last for the target period (2014 to 2024) with 793 cases, followed by 株式会社デンソー with 394 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 793 cases |
| 株式会社デンソー | 394 cases |
| 三菱電機株式会社 | 353 cases |
| トヨタ自動車株式会社 | 330 cases |
| 株式会社リコー | 262 cases |
| オリンパス株式会社 | 239 cases |
| 株式会社ニコン | 197 cases |
| 日産自動車株式会社 | 174 cases |
| 株式会社東芝 | 131 cases |
| 株式会社日立製作所 | 78 cases |
| パナソニックホールディングス株式会社 | 13 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.
Top company information (JP)
The number of patents and changes in the number of patents of other companies (competitors) in the same industry as 曲率 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.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Among the top coapplicants, キヤノン株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 56 cases, followed by 株式会社リコー with 6 cases.
Trends in filing of joint patent applications for the target period (2014 to 2024).
Among the top coapplicants, キヤノン株式会社 has the highest number of joint applications in the last for the target period (2014 to 2024) with 793 cases, followed by 株式会社リコー with 262 cases.
Top company, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by 曲率’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 曲率’s top 7 coapplicants over the last 20 years.
Top company Details (JP)
Trends in filing of joint patent applications with キヤノン株式会社
曲率 filed 793 joint applications with キヤノン株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 365 cases in total) is 60.8, and the median is 62.5. 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 number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2015 with 139 cases, and their lowest number in 2022 with 52 cases.
| Index | Value |
|---|---|
| Average | 60.8 patents |
| Std Dev | 30.4 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 52 cases | -24.64 % |
| 2021 year | 69 cases | +23.21 % |
| 2020 year | 56 cases | -45.1 % |
Trends in filing of joint patent applications with 株式会社リコー
曲率 filed 262 joint applications with 株式会社リコー 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 18.0. The coefficient of variation (standard deviation/mean) is 0.7, and there have been relatively large fluctuations in the number of filings from year to year.
The highest number of filings in 2014 with 57 cases, and their lowest number in 2022 with 4 cases.
| Index | Value |
|---|---|
| Average | 17.3 patents |
| Std Dev | 11.9 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 4 cases | -75.0 % |
| 2021 year | 16 cases | -38.5 % |
| 2020 year | 26 cases | +30.0 % |
Trends in filing of joint patent applications with 株式会社日立製作所
曲率 filed 78 joint applications with 株式会社日立製作所 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 44 cases in total) is 7.3, and the median is 7.5. The coefficient of variation (standard deviation/mean) is 0.7, and there have been relatively large 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 2016 with 15 cases, and their lowest number in 2019 with 3 cases.
| Index | Value |
|---|---|
| Average | 7.3 patents |
| Std Dev | 5.2 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 4 cases | -71.4 % |
| 2021 year | 14 cases | +16.67 % |
| 2020 year | 12 cases | +300 % |
Trends in filing of joint patent applications with 株式会社東芝
曲率 filed 131 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, 46 cases in total) is 7.7, and the median is 10.0. The coefficient of variation (standard deviation/mean) is 0.7, and there have been relatively large fluctuations in the number of filings from year to year.
The highest number of filings in 2017 with 25 cases, and their lowest number in 2022 with 1 cases.
| Index | Value |
|---|---|
| Average | 7.7 patents |
| Std Dev | 5.3 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 1 cases | -88.9 % |
| 2021 year | 9 cases | -18.18 % |
| 2020 year | 11 cases | 0 |
Trends in filing of joint patent applications with 株式会社ニコン
曲率 filed 197 joint applications with 株式会社ニコン for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 88 cases in total) is 14.7, and the median is 14.0. The coefficient of variation (standard deviation/mean) is 0.9, and there have been relatively large 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 2015 with 38 cases, and their lowest number in 2022 with 0 cases.
| Index | Value |
|---|---|
| Average | 14.7 patents |
| Std Dev | 12.7 |
| COV | 0.9 |
| Year | Cases | YOY |
|---|---|---|
| 2021 year | 10 cases | -44.4 % |
| 2020 year | 18 cases | -30.8 % |
| 2019 year | 26 cases | -23.53 % |
Information on important patents (JP)
The following shows JP patents held by 曲率 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and 曲率’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 曲率 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.
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
List of latest Invalidationed Trial patents
In the last 3 years (2021-04-01 ~ 2024-03-31), there were 3 patents Invalidation Trial from third parties. The average number of Invalidation Trial is 1.0 times. The most recently Invalidation Trial patent is 特許4199803 "側溝及び桝" (Invalidation Trial day 2023-05-10) , next is 特許6908969 "包装用容器" (Invalidation Trial day 2022-04-08) .
| - | No. | Title | Invalidation Trial days |
|---|---|---|---|
| 1 | 特許4199803 | 側溝及び桝 | 2023-05-10 |
| 2 | 特許6908969 | 包装用容器 | 2022-04-08 |
| 3 | 特許6329679 | オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム | 2022-01-20 |
Top Patents/Patent Applications with the Highest Number of Invalidationed Trial
Of the patent applications filed in the last 10 years (2014-04-01 to 2024-03-31), 2 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6329679 "オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム" (1 times) , and the next most invalidation trial patent is 特許6908969 "包装用容器" (1 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6329679 | オーディオコントローラ、超音波スピーカ、オーディオシステム、及びプログラム | 1 times |
| 2 | 特許6908969 | 包装用容器 | 1 times |
Oppositioned cases
List of latest Oppositioned patents
In the last 3 years (2021-04-01 ~ 2024-03-31), there were 27 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7315650 "光学コリメータ" (Opposition day 2024-01-24) , next is 特許7295769 "ハードコートフィルム" (Opposition day 2023-12-20) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7315650 | 光学コリメータ | 2024-01-24 |
| 2 | 特許7295769 | ハードコートフィルム | 2023-12-20 |
| 3 | 特許7278336 | 電子インタフェースを備えた電子カード | 2023-11-17 |
| 4 | 特許7239234 | 歩行補助車 | 2023-09-13 |
| 5 | 特許7232927 | 眼鏡レンズおよびその製造方法 | 2023-09-04 |
| 6 | 特許7204971 | 発泡性接着シートおよび物品の製造方法 | 2023-07-12 |
| 7 | 特許7205714 | プレスフィット端子 | 2023-07-11 |
| 8 | 特許7206571 | 電波反射体、および建築材料 | 2023-07-10 |
| 9 | 特許7203260 | 静電チャック部材、静電チャック装置及び静電チャック部材の製造方法 | 2023-07-05 |
| 10 | 特許7190872 | 歯ブラシ | 2023-06-08 |
Protested cases
List of latest Protested patents
In the last 3 years (2021-04-01 ~ 2024-03-31), there were 103 patents Protest from third parties. The average number of Protest is 1.6 times. The most recently Protest patent is 特開2022-108351 "水洗大便器、及び便座" (Protest day 2024-03-26) , next is 特開2022-049541 "炭素繊維シート製造方法、炭素繊維ウェブ製造装置および炭素繊維シート製造装置" (Protest day 2024-03-06) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2022-108351 | 水洗大便器、及び便座 | 2024-03-26 |
| 2 | 特開2022-049541 | 炭素繊維シート製造方法、炭素繊維ウェブ製造装置および炭素繊維シート製造装置 | 2024-03-06 |
| 3 | 特開2021-083767 | 便座および便器装置 | 2024-02-27 |
| 4 | 特開2023-109834 | 電子インタフェースを備えた電子カード | 2024-02-13 |
| 5 | 特開2021-122322 | 便座 | 2024-02-08 |
| 6 | 特開2023-059592 | ハブユニット軸受の製造方法 | 2024-02-02 |
| 7 | 特開2022-058493 | 蒸着用マスク及びこれを用いたＯＬＥＤパネル | 2024-01-29 |
| 8 | 特開2021-071009 | 水洗式便器 | 2024-01-24 |
| 9 | 特許7416107 | ＲＨ真空脱ガス槽の下部槽構造及びＲＨ真空脱ガス設備 | 2024-01-24 |
| 10 | 特開2021-195984 | 制振装置 | 2024-01-22 |
| 11 | 特開2022-075799 | ＰＴＰ包装体 | 2024-01-15 |
| 12 | 特開2021-126949 | トーションビーム | 2023-12-19 |
| 13 | 特表2023-506554 | フィルム、フィルムの製造方法、カバーフィルム及び多重層電子装備 | 2023-12-06 |
| 14 | 特許7437454 | ポリアミド系フィルム、その製造方法、並びにそれを含むカバーウィンドウおよびディスプレイ装置 | 2023-11-02 |
| 15 | 特許7377719 | 光射出装置、及び、光射出装置の製造方法 | 2023-10-26 |
| 16 | 特開2022-139302 | プレス成形品の製造方法および製造装置 | 2023-10-06 |
| 17 | 特許7453106 | 浴槽装置 | 2023-09-07 |
| 18 | 特開2023-055404 | 包装用容器の蓋体、及び包装用容器 | 2023-08-25 |
| 19 | 特開2021-059255 | 空気入りタイヤ | 2023-08-24 |
| 20 | 特開2023-101366 | 衣服用ファン装置及びファン付き衣服 | 2023-08-22 |
Top Patents/Patent Applications with the Highest Number of Protested
Of the patent applications filed in the last 10 years (2014-04-01 to 2024-03-31), 237 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.4. The most protest patent is 特開2022-001371 "可搬型溶接ロボットの制御方法、溶接制御装置、可搬型溶接ロボット及び溶接システム" (7 times) , and the next most protest patent is 特許6713741 "缶" (6 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特開2022-001371 | 可搬型溶接ロボットの制御方法、溶接制御装置、可搬型溶接ロボット及び溶接システム | 7 times |
| 2 | 特許6713741 | 缶 | 6 times |
| 3 | 特開2017-178352 | ＰＴＰ包装体 | 6 times |
| 4 | 特許7072536 | 飲料缶および缶本体 | 5 times |
| 5 | 特開2022-075799 | ＰＴＰ包装体 | 5 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2021-04-01 ~ 2024-03-31), there were 175 patents Inspection from third parties. The average number of Inspection is 1.4 times. The most recently Inspection patent is 特開2022-075275 "半導体記憶装置" (Inspection day 2024-03-18) , next is 特表2022-541221 "非変形ウィングを持つワイドクリップ" (Inspection day 2024-03-12) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2022-075275 | 半導体記憶装置 | 2024-03-18 |
| 2 | 特表2022-541221 | 非変形ウィングを持つワイドクリップ | 2024-03-12 |
| 3 | 特開2023-109834 | 電子インタフェースを備えた電子カード | 2024-02-16 |
| 4 | 特開2021-122322 | 便座 | 2024-02-13 |
| 5 | 特開2022-075799 | ＰＴＰ包装体 | 2024-02-06 |
| 6 | 特開2021-071009 | 水洗式便器 | 2024-01-31 |
| 7 | 特開2019-126029 | 音声指向型拡声器グリル | 2024-01-30 |
| 8 | 特開2022-164874 | 新生腱索の経血管的埋め込み方法及び装置 | 2024-01-30 |
| 9 | 特開2021-126949 | トーションビーム | 2024-01-18 |
| 10 | 特表2020-523173 | 細胞生着のためのパッチグラフト組成物 | 2024-01-12 |
| 11 | 特許7406903 | 爪やすり | 2023-12-26 |
| 12 | 特許7226870 | 角処理用具 | 2023-12-05 |
| 13 | 特許7395788 | 剃刀 | 2023-12-04 |
| 14 | 特許3964227 | 発毛促進ブラシ | 2023-11-29 |
| 15 | 特許7377719 | 光射出装置、及び、光射出装置の製造方法 | 2023-11-21 |
| 16 | 特許6054235 | ＳｉＣ種結晶及びＳｉＣ単結晶の製造方法 | 2023-11-09 |
| 17 | 特開2022-139302 | プレス成形品の製造方法および製造装置 | 2023-11-01 |
| 18 | 特表2020-531157 | 負圧を誘発し、腎臓灌流を増加させる、尿管および膀胱カテーテルおよび方法 | 2023-10-31 |
| 19 | 特開2021-083767 | 便座および便器装置 | 2023-10-03 |
| 20 | 特開2023-101366 | 衣服用ファン装置及びファン付き衣服 | 2023-09-27 |
Top Patents/Patent Applications with the Highest Number of Inspectioned
Of the patent applications filed in the last 10 years (2014-04-01 to 2024-03-31), 477 patents/patent applications were inspection more than once in the examination process of other patent applications. The mean of the number of inspection is 1.4. The most inspection patent is 特開2017-178352 "ＰＴＰ包装体" (11 times) , and the next most inspection patent is 特許6713741 "缶" (9 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特開2017-178352 | ＰＴＰ包装体 | 11 times |
| 2 | 特許6713741 | 缶 | 9 times |
| 3 | 特許6846483 | 撮像光学レンズ | 8 times |
| 4 | 特許6799361 | 撮像光学レンズ | 6 times |
| 5 | 特許6778470 | 撮像光学レンズ | 6 times |
Cited cases
Top Patents/Patent Applications with the Highest Number of Cited
Of the patent applications filed in the last 10 years (2014-04-01 to 2024-03-31), 5,216 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 2.7. The most cited patent is 特開2015-092422 "湾曲型タッチパネル" (51 times) , and the next most cited patent is 特許6288132 "発光装置" (51 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特開2015-092422 | 湾曲型タッチパネル | 51 times |
| 2 | 特許6288132 | 発光装置 | 51 times |
| 3 | 特許6243543 | 調整可能ニット部分を伴うニット構成要素 | 50 times |
| 4 | 特開2017-102443 | 光学積層体および該光学積層体を用いた有機エレクトロルミネセンス表示装置 | 50 times |
| 5 | 特許6253541 | 表示装置 | 43 times |
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