電池のセパレータ技術 (JP Patent Analysis Report)
The Theme Code "電池のセパレータ技術" had 143 patent application filings in the most recent period (2023-01-01 to 2023-04-30). This is a slightly decreased of -1 filings (-0.7%) over 144 they had in the same period of the previous year (2022-01-01 to 2022-04-30).
The highest number of filings in 2015 with 789 cases, and their lowest number in 2023 with 231 cases.
The mean of the number of filings over the last 5 years (2019 to 2024, 2,275 cases in total) is 379, and the median is 473. 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 | 379 patents |
| Std Dev | 192 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 231 cases | -46.7 % |
| 2022 year | 433 cases | -16.41 % |
| 2021 year | 518 cases | +0.97 % |
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 電池のセパレータ技術[5H021] for the period of the last 10 years (2015-01-01 to 2024-12-31). 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 電池のセパレータ技術, 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 電池のセパレータ技術
- 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.
電池のセパレータ技術, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 電池のセパレータ技術 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 電池のセパレータ技術 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 電池のセパレータ技術 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 5,212 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.
電池のセパレータ技術[5H021]
Same industry / competition company information (JP)
The patent information of the higher applicant in the technical theme 電池のセパレータ技術 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 (2023 to 2025).
Comparing the number of applications of each company, トヨタ自動車株式会社 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 23 cases, followed by 東レ株式会社 with 17 cases.
| Name | Cases |
|---|---|
| トヨタ自動車株式会社 | 23 cases |
| 東レ株式会社 | 17 cases |
| 旭化成株式会社 | 11 cases |
| 住友化学株式会社 | 6 cases |
| エルジー・ケム・リミテッド | 5 cases |
| 株式会社GSユアサ | 3 cases |
| マクセル株式会社 | 3 cases |
| 三菱製紙株式会社 | 1 cases |
| 株式会社豊田自動織機 | 1 cases |
Trends in filing of joint patent applications for the target period (2015 to 2025).
Comparing the number of applications of each company, 住友化学株式会社 has the highest number of joint applications in the last for the target period (2015 to 2025) with 351 cases, followed by トヨタ自動車株式会社 with 325 cases.
| Name | Cases |
|---|---|
| 住友化学株式会社 | 351 cases |
| トヨタ自動車株式会社 | 325 cases |
| 株式会社GSユアサ | 252 cases |
| 旭化成株式会社 | 241 cases |
| 株式会社豊田自動織機 | 207 cases |
| 東レ株式会社 | 196 cases |
| エルジー・ケム・リミテッド | 140 cases |
| 三菱製紙株式会社 | 71 cases |
| マクセル株式会社 | 65 cases |
| 三洋電機株式会社 | 44 cases |
| パナソニックホールディングス株式会社 | 22 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 電池のセパレータ技術 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 (2023 to 2025).
among the top coapplicants, トヨタ自動車株式会社 has the highest number of joint applications in the last in the last 3 years (2023 to 2025) with 23 cases, followed by 東レ株式会社 with 17 cases.
Trends in filing of joint patent applications for the target period (2015 to 2025).
among the top coapplicants, 住友化学株式会社 has the highest number of joint applications in the last for the target period (2015 to 2025) with 351 cases, followed by トヨタ自動車株式会社 with 325 cases.
| Name | Cases |
|---|---|
| 住友化学株式会社 | 351 cases |
| トヨタ自動車株式会社 | 325 cases |
| 株式会社GSユアサ | 252 cases |
| 旭化成株式会社 | 241 cases |
| 東レ株式会社 | 196 cases |
| 三菱製紙株式会社 | 71 cases |
| パナソニックホールディングス株式会社 | 22 cases |
Top company, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by 電池のセパレータ技術’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 電池のセパレータ技術’s top 7 coapplicants over the last 20 years.
Top company Details (JP)
Trends in filing of joint patent applications with トヨタ自動車株式会社
電池のセパレータ技術 filed 325 joint applications with トヨタ自動車株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 139 cases in total) is 23.2, and the median is 28.0. 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 (2021 to 2024). The highest number of filings in 2015 with 64 cases, and their lowest number in 2023 with 22 cases.
| Index | Value |
|---|---|
| Average | 23.2 patents |
| Std Dev | 10.3 |
| COV | 0.4 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 22 cases | -24.14 % |
| 2022 year | 29 cases | 0 |
| 2021 year | 29 cases | -6.45 % |
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
電池のセパレータ技術 filed 22 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 (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 12 cases in total) is 2.0, and the median is 0. The coefficient of variation (standard deviation/mean) is 1.8, and there have been very big fluctuations in the number of filings from year to year.
The highest number of filings in 2020 with 10 cases, and their lowest number in 2023 with 0 cases.
| Index | Value |
|---|---|
| Average | 2.0 patents |
| Std Dev | 3.7 |
| COV | 1.8 |
| Year | Cases | YOY |
|---|---|---|
| 2020 year | 10 cases | +400 % |
| 2019 year | 2 cases | +100 % |
| 2018 year | 1 cases | 0 |
Trends in filing of joint patent applications with 住友化学株式会社
電池のセパレータ技術 filed 351 joint applications with 住友化学株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 87 cases in total) is 14.5, and the median is 15.0. 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 number of filings has been decreasing for the last 3 years (2021 to 2024). The highest number of filings in 2016 with 80 cases, and their lowest number in 2023 with 5 cases.
| Index | Value |
|---|---|
| Average | 14.5 patents |
| Std Dev | 9.8 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 5 cases | -78.3 % |
| 2022 year | 23 cases | +130 % |
| 2021 year | 10 cases | -50.0 % |
Trends in filing of joint patent applications with 株式会社GSユアサ
電池のセパレータ技術 filed 252 joint applications with 株式会社GSユアサ for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 97 cases in total) is 16.2, and the median is 19.5. 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 highest number of filings in 2017 with 53 cases, and their lowest number in 2023 with 3 cases.
| Index | Value |
|---|---|
| Average | 16.2 patents |
| Std Dev | 11.1 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 3 cases | -81.2 % |
| 2022 year | 16 cases | -44.8 % |
| 2021 year | 29 cases | +26.09 % |
Trends in filing of joint patent applications with 旭化成株式会社
電池のセパレータ技術 filed 241 joint applications with 旭化成株式会社 for the analysis period (2015 to 2025).
The mean of the number of filings over the last 5 years (2019 to 2024, 119 cases in total) is 19.8, and the median is 17.5. 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 highest number of filings in 2017 with 37 cases, and their lowest number in 2023 with 10 cases.
| Index | Value |
|---|---|
| Average | 19.8 patents |
| Std Dev | 13.2 |
| COV | 0.7 |
| Year | Cases | YOY |
|---|---|---|
| 2023 year | 10 cases | -28.57 % |
| 2022 year | 14 cases | -62.2 % |
| 2021 year | 37 cases | +76.2 % |
Information on important patents (JP)
The following shows JP patents held by 電池のセパレータ技術 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and 電池のセパレータ技術’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 電池のセパレータ技術 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.
Oppositioned cases
List of latest Oppositioned patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 13 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7471327 "軽量不織マット" (Opposition day 2024-09-25) , next is 特許7426518 "全固体電池" (Opposition day 2024-07-31) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7471327 | 軽量不織マット | 2024-09-25 |
| 2 | 特許7426518 | 全固体電池 | 2024-07-31 |
| 3 | 特許7424371 | 液式鉛蓄電池用セパレータおよび液式鉛蓄電池 | 2024-07-23 |
| 4 | 特許7250801 | 制御された細孔径を有するアルカリ電池セパレーター | 2023-09-29 |
| 5 | 特許7231687 | 非水系二次電池用セパレータ及び非水系二次電池 | 2023-08-31 |
| 6 | 特許7185504 | 二次電池セパレータ用コート材原料、二次電池セパレータ用コート材原料の製造方法、二次電池セパレータ用コート材、二次電池セパレータ、二次電池セパレータの製造方法、および、二次電池 | 2023-06-07 |
| 7 | 特許7151938 | リチウムイオン二次電池セパレータ耐熱層バインダー用水性樹脂組成物 | 2023-04-12 |
| 8 | 特許7072551 | リチウムイオン二次電池 | 2022-11-18 |
| 9 | 特許7045561 | 二次電池用分離膜及びこれを含むリチウム二次電池 | 2022-09-29 |
| 10 | 特許6952777 | 電解質組成物、電解質膜、電極、電池及び電解質組成物の評価方法 | 2022-04-19 |
Protested cases
List of latest Protested patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 41 patents Protest from third parties. The average number of Protest is 1.2 times. The most recently Protest patent is 特開2024-003414 "電池" (Protest day 2024-11-28) , next is 特開2022-186109 "不織布及び電気化学素子用セパレータ" (Protest day 2024-10-25) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2024-003414 | 電池 | 2024-11-28 |
| 2 | 特開2022-186109 | 不織布及び電気化学素子用セパレータ | 2024-10-25 |
| 3 | 特開2024-124928 | 二次電池の製造方法 | 2024-09-26 |
| 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2022-152652 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-07-05 |
| 6 | 特開2022-152651 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-07-02 |
| 7 | 特許7515247 | 非水電解液二次電池用セパレータ、非水電解液二次電池用部材および非水電解液二次電池 | 2024-05-29 |
| 8 | 特開2022-152650 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-05-17 |
| 9 | 特許7589836 | 蓄電デバイスセパレータバインダー水溶液、蓄電デバイスセパレータスラリー、蓄電デバイスセパレータ、蓄電デバイスセパレータ／電極積層体及び蓄電デバイス | 2024-05-16 |
| 10 | 特許7596632 | 電極一体型セパレータ用液体組成物、粒子層の製造方法、電極の製造方法、及び電気化学素子の製造方法 | 2024-04-30 |
| 11 | 特許7522074 | 蓄電デバイスおよび蓄電デバイス用セパレータ | 2024-04-03 |
| 12 | 特開2023-100110 | 電池 | 2024-03-07 |
| 13 | 特許7559783 | 高分子多孔膜、電池用セパレータ、電極ユニット、電極フレームワーク、および電池 | 2024-02-21 |
| 14 | 特許7537414 | 二次電池 | 2024-02-06 |
| 15 | 特許7577761 | 高安全性及び高容量を兼ね備えたリチウム電池用正極板、その製造方法及び電池 | 2024-01-30 |
| 16 | 特許7474115 | 非水系二次電池用セパレータ及び非水系二次電池 | 2024-01-19 |
| 17 | 特開2023-110062 | 電池セパレータおよび鉛酸電池 | 2023-11-07 |
| 18 | 特開2021-158028 | 亜鉛二次電池 | 2023-11-03 |
| 19 | 特開2023-058556 | リチウム電池用の改善されたコーティングしたセパレータおよび関連方法 | 2023-10-23 |
| 20 | 特開2023-020350 | 鉛蓄電池用セパレータ及び鉛蓄電池 | 2023-10-04 |
Top Patents/Patent Applications with the Highest Number of Protested
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 96 patents/patent applications were protest more than once in the examination process of other patent applications. The mean of the number of protest is 1.1. The most protest patent is 特許7566452 "亜鉛電池" (3 times) , and the next most protest patent is 特許7522074 "蓄電デバイスおよび蓄電デバイス用セパレータ" (2 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7566452 | 亜鉛電池 | 3 times |
| 2 | 特許7522074 | 蓄電デバイスおよび蓄電デバイス用セパレータ | 2 times |
| 3 | 特開2024-003414 | 電池 | 2 times |
| 4 | 特表2018-530127 | 改善された性能を有する浸水型鉛蓄電池、改良された電池セパレータ、及び関連する方法 | 2 times |
| 5 | 特許6630620 | 蓄電デバイス用セパレータ、蓄電デバイス及びリチウムイオン二次電池 | 2 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2022-01-01 ~ 2024-12-31), there were 45 patents Inspection from third parties. The average number of Inspection is 1.4 times. The most recently Inspection patent is 特開2024-124928 "二次電池の製造方法" (Inspection day 2024-10-17) , next is 特開2022-153188 "リチウムイオン二次電池" (Inspection day 2024-10-03) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2024-124928 | 二次電池の製造方法 | 2024-10-17 |
| 2 | 特開2022-153188 | リチウムイオン二次電池 | 2024-10-03 |
| 3 | 特表2023-542818 | リチウムイオン電池用のエポキシ修飾添加剤 | 2024-08-30 |
| 4 | 特表2023-529303 | ビシクロホスフェート部分を含む改変イオン液体 | 2024-08-30 |
| 5 | 特表2023-544247 | リチウムイオン電池電解液添加剤 | 2024-08-30 |
| 6 | 特表2023-529127 | リチウムイオン電池電解質添加剤 | 2024-08-30 |
| 7 | 特表2023-544405 | リチウムイオン電池電解液添加剤 | 2024-08-30 |
| 8 | 特開2022-152652 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-08-09 |
| 9 | 特開2022-152651 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-08-05 |
| 10 | 特許7274830 | 鉛蓄電池 | 2024-07-22 |
| 11 | 特開2022-152650 | 鉛蓄電池用セパレータおよびそれを含む鉛蓄電池 | 2024-06-13 |
| 12 | 特開2024-003414 | 電池 | 2024-06-11 |
| 13 | 特許7515247 | 非水電解液二次電池用セパレータ、非水電解液二次電池用部材および非水電解液二次電池 | 2024-06-04 |
| 14 | 特許7589836 | 蓄電デバイスセパレータバインダー水溶液、蓄電デバイスセパレータスラリー、蓄電デバイスセパレータ、蓄電デバイスセパレータ／電極積層体及び蓄電デバイス | 2024-05-21 |
| 15 | 特許7596632 | 電極一体型セパレータ用液体組成物、粒子層の製造方法、電極の製造方法、及び電気化学素子の製造方法 | 2024-05-15 |
| 16 | 特許7522074 | 蓄電デバイスおよび蓄電デバイス用セパレータ | 2024-04-10 |
| 17 | 特開2023-100110 | 電池 | 2024-03-18 |
| 18 | 特許7537414 | 二次電池 | 2024-03-14 |
| 19 | 特許7559783 | 高分子多孔膜、電池用セパレータ、電極ユニット、電極フレームワーク、および電池 | 2024-02-28 |
| 20 | 特許7577761 | 高安全性及び高容量を兼ね備えたリチウム電池用正極板、その製造方法及び電池 | 2024-02-20 |
Top Patents/Patent Applications with the Highest Number of Inspectioned
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 108 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7522074 "蓄電デバイスおよび蓄電デバイス用セパレータ" (4 times) , and the next most inspection patent is 特許6630620 "蓄電デバイス用セパレータ、蓄電デバイス及びリチウムイオン二次電池" (4 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7522074 | 蓄電デバイスおよび蓄電デバイス用セパレータ | 4 times |
| 2 | 特許6630620 | 蓄電デバイス用セパレータ、蓄電デバイス及びリチウムイオン二次電池 | 4 times |
| 3 | 特表2018-530127 | 改善された性能を有する浸水型鉛蓄電池、改良された電池セパレータ、及び関連する方法 | 3 times |
| 4 | 特開2020-155208 | 非水系二次電池用セパレータ及び非水系二次電池 | 3 times |
| 5 | 特許6702327 | 非水系二次電池機能層用組成物、非水系二次電池用機能層および非水系二次電池 | 3 times |
Cited cases
Top Patents/Patent Applications with the Highest Number of Cited
Of the patent applications filed in the last 10 years (2015-01-01 to 2024-12-31), 1,469 patents/patent applications were cited more than once in the examination process of other patent applications. The mean of the number of cited is 2.9. The most cited patent is 特許6493057 "金属空気電池の負極複合体及び金属空気電池" (51 times) , and the next most cited patent is 特開2017-203145 "耐熱性合成樹脂微多孔フィルム及び電池用セパレータ" (43 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6493057 | 金属空気電池の負極複合体及び金属空気電池 | 51 times |
| 2 | 特開2017-203145 | 耐熱性合成樹脂微多孔フィルム及び電池用セパレータ | 43 times |
| 3 | 特許6765663 | リチウム金属電池 | 30 times |
| 4 | 特許6025957 | 非水電解液二次電池用セパレータ、非水電解液二次電池用積層セパレータ、非水電解液二次電池用部材、非水電解液二次電池および非水電解液二次電池用セパレータの製造方法 | 28 times |
| 5 | 特許6123006 | 多孔質層 | 26 times |
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