軟質磁性材料技術 (JP Patent Analysis Report)
The Theme Code "軟質磁性材料技術" had 58 patent application filings in the most recent period (2023-01-01 to 2023-03-31). This is a significantly decreased of -42 filings (-42.0%) over 100 they had in the same period of the previous year (2022-01-01 to 2022-03-31).
The highest number of filings in 2019 with 400 cases, and their lowest number in 2014 with 276 cases.
The mean of the number of filings over the last 5 years (2018 to 2023, 1,831 cases in total) is 305, and the median is 321. 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.
| Index | Value |
|---|---|
| Average | 305 patents |
| Std Dev | 99.3 |
| COV | 0.3 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 280 cases | -1.41 % |
| 2021 year | 284 cases | -28.64 % |
| 2020 year | 398 cases | -0.50 % |
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 軟質磁性材料技術[5E041] for the period of the last 10 years (2014-01-01 to 2024-11-30). 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 軟質磁性材料技術, 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.
- Table of Contents
- Foreign Patent Analysis Report
- Patent Filing Summary for 軟質磁性材料技術
- Search Set (Search Formula/Analysis Patents)
- Related Patent Analysis Report
- Competitors Information
- Top company Information
- • Information on Important Patents
- Provision of patent information to the media
- About this Site
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.
軟質磁性材料技術, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 軟質磁性材料技術 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.
Patent Landscape ({{ld.d.db_name | country_map: 'en'}})
Patent landscaping is a visualization of the distribution of patent filings (application focus areas) for each technical keyword. Mountains and islands indicated by heatmap contours represent clusters of patent applications filed, and red areas on the heatmap indicate many patent filings relating to the keyword.
The patent landscape for 軟質磁性材料技術 gives an intuitive understanding of what patent filings they have made and what technical position is to be established. By selecting filing year checkboxes and filtering, you can track their past filing trends (what technical area they have focused on).
By selecting applicant/patent holder checkboxes and filtering, you can visually grasp the technical areas of the filings for each applicant and the partnerships or alliances formed. Please use it as a guide for patent analysis and IP landscaping.
In addition, by visually representing the patent data in this manner, you can 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.
In Patent Integration, you can check the specifics of a patent filing by clicking anywhere on the patent landscape screen. You can also quickly check the position of each applicant for each technical field by cross-referencing with other keywords and patent classifications. You can use it as a guide when considering hypotheses about each company's IP strategy on the IP Landscape. You can also use it for higher-grade intellectual property activities. It has reasonable pricing and a simple user interface that is easy for beginners to handle.
Characteristic Terms (Importance)
The following is a list of words (characteristic terms) often used in 軟質磁性材料技術 patent applications. Characteristic terms with a higher importance are used in more patents/patent applications.
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 3,146 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.
軟質磁性材料技術[5E041]
Same industry / competition company information (JP)
The patent information of the higher applicant in the technical theme 軟質磁性材料技術 is shown below. By comparing the number of patents of each company, you can check the research and development status of each company's past and present technical themes and the position of each company in the technical theme.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
Comparing the number of applications of each company, JFEスチール株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 78 cases, followed by TDK株式会社 with 35 cases.
| Name | Cases |
|---|---|
| JFEスチール株式会社 | 78 cases |
| TDK株式会社 | 35 cases |
| 日本製鉄株式会社 | 32 cases |
| 株式会社プロテリアル | 12 cases |
| 株式会社トーキン | 11 cases |
| 大同特殊鋼株式会社 | 9 cases |
| 株式会社村田製作所 | 8 cases |
| 株式会社東芝 | 5 cases |
Trends in filing of joint patent applications for the target period (2014 to 2024).
Comparing the number of applications of each company, 日本製鉄株式会社 has the highest number of joint applications in the last for the target period (2014 to 2024) with 409 cases, followed by JFEスチール株式会社 with 393 cases.
| Name | Cases |
|---|---|
| 日本製鉄株式会社 | 409 cases |
| JFEスチール株式会社 | 393 cases |
| TDK株式会社 | 294 cases |
| 株式会社プロテリアル | 145 cases |
| 株式会社村田製作所 | 111 cases |
| 株式会社トーキン | 78 cases |
| 株式会社東芝 | 42 cases |
| 大同特殊鋼株式会社 | 35 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 patent information of the higher applicant in the technical theme 軟質磁性材料技術 is shown below. By comparing the number of patents of each company, you can check the research and development status of each company's past and present technical themes and the position of each company in the technical theme.
Trends in filing of joint patent applications in the last 3 years (2022 to 2024).
among the top coapplicants, JFEスチール株式会社 has the highest number of joint applications in the last in the last 3 years (2022 to 2024) with 78 cases, followed by TDK株式会社 with 35 cases.
| Name | Cases |
|---|---|
| JFEスチール株式会社 | 78 cases |
| TDK株式会社 | 35 cases |
| 日本製鉄株式会社 | 32 cases |
| 株式会社プロテリアル | 12 cases |
| 株式会社トーキン | 11 cases |
| 株式会社東芝 | 5 cases |
Trends in filing of joint patent applications for the target period (2014 to 2024).
among the top coapplicants, 日本製鉄株式会社 has the highest number of joint applications in the last for the target period (2014 to 2024) with 409 cases, followed by JFEスチール株式会社 with 393 cases.
| Name | Cases |
|---|---|
| 日本製鉄株式会社 | 409 cases |
| JFEスチール株式会社 | 393 cases |
| TDK株式会社 | 294 cases |
| 株式会社プロテリアル | 145 cases |
| 株式会社トーキン | 78 cases |
| 株式会社東芝 | 42 cases |
Top company, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by 軟質磁性材料技術’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 軟質磁性材料技術’s top 7 coapplicants over the last 20 years.
Top company Details (JP)
Trends in filing of joint patent applications with JFEスチール株式会社
軟質磁性材料技術 filed 393 joint applications with JFEスチール株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 210 cases in total) is 35.0, and the median is 34.0. 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.
The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2022 with 56 cases, and their lowest number in 2021 with 22 cases.
| Index | Value |
|---|---|
| Average | 35.0 patents |
| Std Dev | 12.8 |
| COV | 0.4 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 56 cases | +155 % |
| 2021 year | 22 cases | -51.1 % |
| 2020 year | 45 cases | +25.00 % |
Trends in filing of joint patent applications with 日本製鉄株式会社
軟質磁性材料技術 filed 409 joint applications with 日本製鉄株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 259 cases in total) is 43.2, and the median is 39.0. 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 2020 with 92 cases, and their lowest number in 2014 with 11 cases.
| Index | Value |
|---|---|
| Average | 43.2 patents |
| Std Dev | 27.1 |
| COV | 0.6 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 23 cases | -25.81 % |
| 2021 year | 31 cases | -66.3 % |
| 2020 year | 92 cases | +58.6 % |
Trends in filing of joint patent applications with TDK株式会社
軟質磁性材料技術 filed 294 joint applications with TDK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, 163 cases in total) is 27.2, and the median is 25.5. 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.
The highest number of filings in 2018 with 49 cases, and their lowest number in 2015 with 23 cases.
| Index | Value |
|---|---|
| Average | 27.2 patents |
| Std Dev | 11.4 |
| COV | 0.4 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 25 cases | -3.85 % |
| 2021 year | 26 cases | -7.14 % |
| 2020 year | 28 cases | +12.00 % |
Trends in filing of joint patent applications with 株式会社トーキン
軟質磁性材料技術 filed 78 joint applications with 株式会社トーキン for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 50 cases in total) is 8.3, and the median is 10.0. 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.
The number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2018 with 12 cases, and their lowest number in 2019 with 5 cases.
| Index | Value |
|---|---|
| Average | 8.3 patents |
| Std Dev | 3.6 |
| COV | 0.4 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 9 cases | -18.18 % |
| 2021 year | 11 cases | 0 |
| 2020 year | 11 cases | +120 % |
Trends in filing of joint patent applications with 株式会社プロテリアル
軟質磁性材料技術 filed 145 joint applications with 株式会社プロテリアル for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 83 cases in total) is 13.8, and the median is 13.5. 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 2019 with 24 cases, and their lowest number in 2022 with 9 cases.
| Index | Value |
|---|---|
| Average | 13.8 patents |
| Std Dev | 7.3 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 9 cases | 0 |
| 2021 year | 9 cases | -50.0 % |
| 2020 year | 18 cases | -25.00 % |
Information on important patents (JP)
The following shows JP patents held by 軟質磁性材料技術 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and 軟質磁性材料技術’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 軟質磁性材料技術 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 (2021-12-01 ~ 2024-11-30), there were 3 patents Invalidation Trial from third parties. The average number of Invalidation Trial is 1.3 times. The most recently Invalidation Trial patent is 特許6519898 "ワイヤハーネス及び電磁波抑制部材" (Invalidation Trial day 2024-07-26) , next is 特許5447167 "無方向性電磁鋼板およびその製造方法" (Invalidation Trial day 2024-06-21) .
| - | No. | Title | Invalidation Trial days |
|---|---|---|---|
| 1 | 特許6519898 | ワイヤハーネス及び電磁波抑制部材 | 2024-07-26 |
| 2 | 特許5447167 | 無方向性電磁鋼板およびその製造方法 | 2024-06-21 |
| 3 | 特許6497176 | ロータ用無方向性電磁鋼板及びロータ用無方向性電磁鋼板の製造方法 | 2023-06-01 |
Top Patents/Patent Applications with the Highest Number of Invalidationed Trial
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 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 1.5. The most invalidation trial patent is 特許6497176 "ロータ用無方向性電磁鋼板及びロータ用無方向性電磁鋼板の製造方法" (2 times) , and the next most invalidation trial patent is 特許6519898 "ワイヤハーネス及び電磁波抑制部材" (1 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6497176 | ロータ用無方向性電磁鋼板及びロータ用無方向性電磁鋼板の製造方法 | 2 times |
| 2 | 特許6519898 | ワイヤハーネス及び電磁波抑制部材 | 1 times |
Oppositioned cases
List of latest Oppositioned patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 23 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7448873 "無方向性電磁鋼板及びモータコア" (Opposition day 2024-09-09) , next is 特許7388502 "金属元素含有粉及び成形体" (Opposition day 2024-05-29) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7448873 | 無方向性電磁鋼板及びモータコア | 2024-09-09 |
| 2 | 特許7388502 | 金属元素含有粉及び成形体 | 2024-05-29 |
| 3 | 特許7387456 | 圧粉磁心用鉄基粉末 | 2024-05-09 |
| 4 | 特許7374932 | 金属粒子、それを用いた磁性体ペースト、圧粉磁心及びインダクタ、並びに金属粒子の製造方法 | 2024-04-30 |
| 5 | 特許7364966 | 方向性電磁鋼板の製造方法 | 2024-04-11 |
| 6 | 特許7360572 | 焼鈍分離剤用酸化マグネシウム及び方向性電磁鋼板 | 2024-04-01 |
| 7 | 特許7365416 | 方向性電磁鋼板およびその製造方法 | 2024-03-19 |
| 8 | 特許7340045 | 方向性電磁鋼板およびその製造方法 | 2024-02-29 |
| 9 | 特許7329049 | 電磁鋼板およびその製造方法 | 2024-02-13 |
| 10 | 特許7284367 | 無方向性電磁鋼板コイル及びその製造方法 | 2023-11-30 |
Protested cases
List of latest Protested patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 73 patents Protest from third parties. The average number of Protest is 1.2 times. The most recently Protest patent is 特開2023-112498 "磁性ペースト" (Protest day 2024-10-24) , next is 特開2022-064864 "磁性ペースト" (Protest day 2024-10-18) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2023-112498 | 磁性ペースト | 2024-10-24 |
| 2 | 特開2022-064864 | 磁性ペースト | 2024-10-18 |
| 3 | 特許7583298 | 鉄（Ｆｅ）－ニッケル（Ｎｉ）系合金粉の製造方法 | 2024-09-19 |
| 4 | 特表2024-519776 | 無方向性電磁鋼板およびその製造方法 | 2024-09-09 |
| 5 | 特表2024-505336 | 電磁鋼板積層体 | 2024-08-28 |
| 6 | 特表2024-501248 | 電磁鋼板およびその積層体 | 2024-08-28 |
| 7 | 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 |
| 8 | 特許7561194 | 方向性電磁鋼板およびその磁区微細化方法 | 2024-07-29 |
| 9 | 特開2023-052264 | 無方向性電磁鋼板およびその製造方法 | 2024-07-18 |
| 10 | 特表2024-503246 | 無方向性電磁鋼板およびその製造方法 | 2024-06-20 |
| 11 | 特開2022-097004 | 方向性電磁鋼板及びその製造方法 | 2024-05-27 |
| 12 | 特開2023-059186 | 鉄基焼結体製造用の混合物、鉄基焼結体および鉄基焼結体の製造方法 | 2024-04-15 |
| 13 | 特表2022-515235 | 方向性電磁鋼板およびその製造方法 | 2024-04-12 |
| 14 | 特許7538126 | 方向性電磁鋼板およびその製造方法 | 2024-04-12 |
| 15 | 特開2022-060749 | 方向性電磁鋼板の製造方法 | 2024-04-01 |
| 16 | 特開2023-158013 | Ｎｉ－Ｚｎ－Ｃｕ系フェライト粉末、焼結体、フェライトシート | 2024-02-21 |
| 17 | 特許7529978 | 方向性電磁鋼板の製造方法 | 2024-01-11 |
| 18 | 特表2023-508027 | 方向性電磁鋼板およびその製造方法 | 2023-12-14 |
| 19 | 特許7529973 | ロータ用無方向性電磁鋼板およびその製造方法 | 2023-10-31 |
| 20 | 特許7560795 | 無方向性電磁鋼板、鉄心およびモータコア、ならびに鉄心およびモータコアの製造方法 | 2023-10-26 |
Top Patents/Patent Applications with the Highest Number of Protested
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 119 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.2. The most protest patent is 特許7383395 "磁性流体" (3 times) , and the next most protest patent is 特許6729705 "ナノ結晶合金磁心、磁心ユニットおよびナノ結晶合金磁心の製造方法" (3 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7383395 | 磁性流体 | 3 times |
| 2 | 特許6729705 | ナノ結晶合金磁心、磁心ユニットおよびナノ結晶合金磁心の製造方法 | 3 times |
| 3 | 特許6844110 | 一方向性電磁鋼板の製造方法及び一方向性電磁鋼板用原板の製造方法 | 2 times |
| 4 | 特許6575592 | 方向性電磁鋼板 | 2 times |
| 5 | 特許6613919 | 焼鈍分離剤用粉末、および方向性電磁鋼板の製造方法 | 2 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 67 patents Inspection from third parties. The average number of Inspection is 1.2 times. The most recently Inspection patent is 特開2022-064864 "磁性ペースト" (Inspection day 2024-11-19) , next is 特開2023-112498 "磁性ペースト" (Inspection day 2024-11-06) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2022-064864 | 磁性ペースト | 2024-11-19 |
| 2 | 特開2023-112498 | 磁性ペースト | 2024-11-06 |
| 3 | 特許7583298 | 鉄（Ｆｅ）－ニッケル（Ｎｉ）系合金粉の製造方法 | 2024-10-17 |
| 4 | 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 |
| 5 | 特許5884165 | 方向性電磁鋼板およびその製造方法 | 2024-06-25 |
| 6 | 特開2022-097004 | 方向性電磁鋼板及びその製造方法 | 2024-06-18 |
| 7 | 特許5447167 | 無方向性電磁鋼板およびその製造方法 | 2024-06-03 |
| 8 | 特開2023-059186 | 鉄基焼結体製造用の混合物、鉄基焼結体および鉄基焼結体の製造方法 | 2024-04-23 |
| 9 | 特開2022-060749 | 方向性電磁鋼板の製造方法 | 2024-04-09 |
| 10 | 特開2019-036702 | コイル部品 | 2024-03-21 |
| 11 | 特開2023-158013 | Ｎｉ－Ｚｎ－Ｃｕ系フェライト粉末、焼結体、フェライトシート | 2024-03-06 |
| 12 | 特許7588478 | 軟磁性金属粉末、圧粉磁心および磁性部品 | 2024-02-22 |
| 13 | 特許7529978 | 方向性電磁鋼板の製造方法 | 2024-02-06 |
| 14 | 特許7560795 | 無方向性電磁鋼板、鉄心およびモータコア、ならびに鉄心およびモータコアの製造方法 | 2023-11-21 |
| 15 | 特許7511322 | 磁性コア形成用樹脂組成物および構造体 | 2023-11-15 |
| 16 | 特許7529973 | ロータ用無方向性電磁鋼板およびその製造方法 | 2023-11-07 |
| 17 | 特許7510078 | 方向性電磁鋼板の製造方法 | 2023-10-31 |
| 18 | 特許7568948 | 電磁鋼板の製造方法 | 2023-10-31 |
| 19 | 特許7433808 | シリコン酸化物被覆軟磁性粉末およびその製造方法 | 2023-10-04 |
| 20 | 特許7383395 | 磁性流体 | 2023-09-28 |
Top Patents/Patent Applications with the Highest Number of Inspectioned
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 127 patents/patent applications were inspection more than once in the examination process of other patent applications. The mean of the number of inspection is 1.3. The most inspection patent is 特許6427677 "軟磁性材料およびその製造方法" (7 times) , and the next most inspection patent is 特許6575592 "方向性電磁鋼板" (4 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6427677 | 軟磁性材料およびその製造方法 | 7 times |
| 2 | 特許6575592 | 方向性電磁鋼板 | 4 times |
| 3 | 特許6700919 | シリカ系絶縁被覆軟磁性鉄粉末およびその製造方法 | 4 times |
| 4 | 特許7181083 | ＦｅＣｏ合金、ＦｅＳｉ合金またはＦｅシートもしくはストリップおよびその製造方法、前記シートまたはストリップから製造された磁気変圧器コア、ならびにそれを備える変圧器 | 3 times |
| 5 | 特許6729705 | ナノ結晶合金磁心、磁心ユニットおよびナノ結晶合金磁心の製造方法 | 3 times |
Cited cases
Top Patents/Patent Applications with the Highest Number of Cited
Of the patent applications filed in the last 10 years (2014-12-01 to 2024-11-30), 893 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 3.3. The most cited patent is 特許6585011 "軟磁性材料、回転電機、モータ及び発電機" (28 times) , and the next most cited patent is 特許6992652 "電磁鋼板、及び、電磁鋼板の製造方法" (27 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6585011 | 軟磁性材料、回転電機、モータ及び発電機 | 28 times |
| 2 | 特許6992652 | 電磁鋼板、及び、電磁鋼板の製造方法 | 27 times |
| 3 | 特許6207033 | コイル電子部品及びその製造方法 | 27 times |
| 4 | 特許6855684 | 電磁鋼板、及びその製造方法 | 26 times |
| 5 | 特許6269971 | 無方向性電磁鋼板とモータコア | 25 times |
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