電子写真における現像剤技術 (JP Patent Analysis Report)
The Theme Code "電子写真における現像剤技術" had 81 patent application filings in the most recent period (2023-01-01 to 2023-03-31). This is a with an decreasing trend transition of -13 filings (-13.8%) over 94 they had in the same period of the previous year (2022-01-01 to 2022-03-31).
The highest number of filings in 2014 with 756 cases, and their lowest number in 2022 with 324 cases.
The mean of the number of filings over the last 5 years (2018 to 2023, 2,336 cases in total) is 389, and the median is 430. The coefficient of variation (standard deviation/mean) is 0.30, and there have been small fluctuations in the number of filings from year to year.
| Index | Value |
|---|---|
| Average | 389 patents |
| Std Dev | 115 |
| COV | 0.30 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 324 cases | -20.98 % |
| 2021 year | 410 cases | -9.09 % |
| 2020 year | 451 cases | -8.52 % |
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 電子写真における現像剤技術[2H500] 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 電子写真における現像剤技術, 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 電子写真における現像剤技術
- 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.
電子写真における現像剤技術, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 電子写真における現像剤技術 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 電子写真における現像剤技術 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 電子写真における現像剤技術 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 5,171 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.
電子写真における現像剤技術[2H500]
Same industry / competition company information (JP)
The patent information of the higher applicant in the technical theme 電子写真における現像剤技術 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, 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 152 cases, followed by 株式会社リコー with 80 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 152 cases |
| 株式会社リコー | 80 cases |
| 富士フイルムビジネスイノベーション株式会社 | 70 cases |
| 花王株式会社 | 49 cases |
| コニカミノルタ株式会社 | 32 cases |
| シャープ株式会社 | 23 cases |
| 京セラドキュメントソリューションズ株式会社 | 21 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 1,356 cases, followed by 富士フイルムビジネスイノベーション株式会社 with 751 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,356 cases |
| 富士フイルムビジネスイノベーション株式会社 | 751 cases |
| 株式会社リコー | 530 cases |
| コニカミノルタ株式会社 | 528 cases |
| 京セラドキュメントソリューションズ株式会社 | 453 cases |
| 花王株式会社 | 394 cases |
| シャープ株式会社 | 99 cases |
| 三菱化学株式会社 | 7 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 電子写真における現像剤技術 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, 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 152 cases, followed by 株式会社リコー with 80 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 152 cases |
| 株式会社リコー | 80 cases |
| 富士フイルムビジネスイノベーション株式会社 | 70 cases |
| 花王株式会社 | 49 cases |
| コニカミノルタ株式会社 | 32 cases |
| 京セラドキュメントソリューションズ株式会社 | 21 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 1,356 cases, followed by 富士フイルムビジネスイノベーション株式会社 with 751 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,356 cases |
| 富士フイルムビジネスイノベーション株式会社 | 751 cases |
| 株式会社リコー | 530 cases |
| コニカミノルタ株式会社 | 528 cases |
| 京セラドキュメントソリューションズ株式会社 | 453 cases |
| 花王株式会社 | 394 cases |
Top company, Change in the Number of JP Patents
Below is a ranking of the number of JP patent applications by 電子写真における現像剤技術’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 電子写真における現像剤技術’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
電子写真における現像剤技術 filed 1,356 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, 731 cases in total) is 122, and the median is 126. 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 highest number of filings in 2015 with 181 cases, and their lowest number in 2022 with 101 cases.
| Index | Value |
|---|---|
| Average | 122 patents |
| Std Dev | 40.0 |
| COV | 0.3 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 101 cases | -6.48 % |
| 2021 year | 108 cases | -33.7 % |
| 2020 year | 163 cases | -0.61 % |
Trends in filing of joint patent applications with 株式会社リコー
電子写真における現像剤技術 filed 530 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, 253 cases in total) is 42.2, and the median is 43.0. The coefficient of variation (standard deviation/mean) is 0.21, and there have been small 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 112 cases, and their lowest number in 2021 with 37 cases.
| Index | Value |
|---|---|
| Average | 42.2 patents |
| Std Dev | 8.7 |
| COV | 0.21 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 48 cases | +29.73 % |
| 2021 year | 37 cases | -31.5 % |
| 2020 year | 54 cases | +12.50 % |
Trends in filing of joint patent applications with 富士フイルムビジネスイノベーション株式会社
電子写真における現像剤技術 filed 751 joint applications with 富士フイルムビジネスイノベーション株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 310 cases in total) is 51.7, and the median is 48.0. 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 number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2014 with 141 cases, and their lowest number in 2020 with 43 cases.
| Index | Value |
|---|---|
| Average | 51.7 patents |
| Std Dev | 25.9 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 54 cases | -47.1 % |
| 2021 year | 102 cases | +137 % |
| 2020 year | 43 cases | -18.87 % |
Trends in filing of joint patent applications with コニカミノルタ株式会社
電子写真における現像剤技術 filed 528 joint applications with コニカミノルタ株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 250 cases in total) is 41.7, and the median is 43.0. 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 number of filings has been decreasing for the last 3 years (2020 to 2023). The highest number of filings in 2015 with 87 cases, and their lowest number in 2022 with 12 cases.
| Index | Value |
|---|---|
| Average | 41.7 patents |
| Std Dev | 22.6 |
| COV | 0.5 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 12 cases | -58.6 % |
| 2021 year | 29 cases | -49.1 % |
| 2020 year | 57 cases | -1.72 % |
Trends in filing of joint patent applications with 京セラドキュメントソリューションズ株式会社
電子写真における現像剤技術 filed 453 joint applications with 京セラドキュメントソリューションズ株式会社 for the analysis period (2014 to 2024).
The mean of the number of filings over the last 5 years (2018 to 2023, 136 cases in total) is 22.7, and the median is 19.0. The coefficient of variation (standard deviation/mean) is 0.6, and there have been big fluctuations in the number of filings from year to year.
The highest number of filings in 2016 with 111 cases, and their lowest number in 2022 with 15 cases.
| Index | Value |
|---|---|
| Average | 22.7 patents |
| Std Dev | 13.2 |
| COV | 0.6 |
| Year | Cases | YOY |
|---|---|---|
| 2022 year | 15 cases | -16.67 % |
| 2021 year | 18 cases | -10.00 % |
| 2020 year | 20 cases | -31.0 % |
Information on important patents (JP)
The following shows JP patents held by 電子写真における現像剤技術 that have had an invalidation trial against them demanded or an opposition filed against them by a third party, and 電子写真における現像剤技術’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 電子写真における現像剤技術 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 (2021-12-01 ~ 2024-11-30), there were 5 patents Opposition from third parties. The average number of Opposition is 1.0 times. The most recently Opposition patent is 特許7426166 "フェライト粒子、電子写真現像剤用キャリア、電子写真現像剤及びフェライト粒子の製造方法" (Opposition day 2024-07-23) , next is 特許7335579 "電子写真現像剤用キャリア芯材とその製造方法、並びに該キャリア芯材を備えた電子写真現像剤用キャリアと現像剤" (Opposition day 2023-12-11) .
| - | No. | Title | Opposition days |
|---|---|---|---|
| 1 | 特許7426166 | フェライト粒子、電子写真現像剤用キャリア、電子写真現像剤及びフェライト粒子の製造方法 | 2024-07-23 |
| 2 | 特許7335579 | 電子写真現像剤用キャリア芯材とその製造方法、並びに該キャリア芯材を備えた電子写真現像剤用キャリアと現像剤 | 2023-12-11 |
| 3 | 特許6978051 | 電子写真現像剤用フェライトキャリア芯材、電子写真現像剤用キャリア及び現像剤 | 2022-06-06 |
| 4 | 特許6929086 | キャリア芯材 | 2022-03-01 |
| 5 | 特許6924885 | キャリア芯材 | 2022-02-21 |
Protested cases
List of latest Protested patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 29 patents Protest from third parties. The average number of Protest is 1.5 times. The most recently Protest patent is 特開2021-081711 "磁性キャリア、二成分現像剤、及び磁性キャリアの製造方法" (Protest day 2024-10-18) , next is 特開2022-134685 "トナー、画像形成装置及び画像形成方法、並びに印刷物の製造方法" (Protest day 2024-09-12) .
| - | No. | Title | Protest days |
|---|---|---|---|
| 1 | 特開2021-081711 | 磁性キャリア、二成分現像剤、及び磁性キャリアの製造方法 | 2024-10-18 |
| 2 | 特開2022-134685 | トナー、画像形成装置及び画像形成方法、並びに印刷物の製造方法 | 2024-09-12 |
| 3 | 特開2023-005605 | キャリア、現像剤、補給用現像剤、画像形成装置、プロセスカートリッジ及び画像形成方法 | 2024-08-23 |
| 4 | 特開2022-106478 | 電子写真画像形成システム | 2024-08-02 |
| 5 | 特許7551437 | 磁性キャリア | 2024-07-12 |
| 6 | 特開2021-140153 | トナーバインダーの製造方法 | 2024-07-05 |
| 7 | 特許7548798 | キャリア芯材 | 2024-03-19 |
| 8 | 特許7523918 | 磁性キャリア及び二成分系現像剤 | 2024-02-29 |
| 9 | 特許7475907 | トナー | 2024-01-12 |
| 10 | 特許7475916 | トナー及びトナーの製造方法 | 2024-01-12 |
| 11 | 特開2021-162809 | トナー、現像剤及び画像形成装置 | 2024-01-12 |
| 12 | 特許7423917 | 顔料分散性、および熱安定性に優れたポリエステル樹脂 | 2023-11-15 |
| 13 | 特許7543697 | トナー、トナー収容容器、現像剤、現像装置、プロセスカートリッジ、及び画像形成装置 | 2023-10-05 |
| 14 | 特許7415450 | 現像剤、現像装置、プロセスカートリッジ及び画像形成装置 | 2023-05-16 |
| 15 | 特許7335579 | 電子写真現像剤用キャリア芯材とその製造方法、並びに該キャリア芯材を備えた電子写真現像剤用キャリアと現像剤 | 2023-04-03 |
| 16 | 特許7355253 | 顔料、化粧料、インキ、塗料、トナー、及び成形物 | 2023-02-24 |
| 17 | 特許7414534 | トナー製造用機械式粉砕機、トナーの製造方法及びトナー製造システム | 2023-02-22 |
| 18 | 特許7257732 | キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤 | 2023-01-20 |
| 19 | 特許7275693 | 画像形成装置および画像形成方法 | 2022-10-24 |
| 20 | 特許7155046 | 疎水性シリカ粉末及びトナー樹脂粒子 | 2022-09-27 |
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), 219 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7129142 "キャリア芯材" (5 times) , and the next most protest patent is 特許7257732 "キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤" (5 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許7129142 | キャリア芯材 | 5 times |
| 2 | 特許7257732 | キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤 | 5 times |
| 3 | 特許7116529 | キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤 | 3 times |
| 4 | 特許7423917 | 顔料分散性、および熱安定性に優れたポリエステル樹脂 | 3 times |
| 5 | 特許7116530 | キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤 | 3 times |
Inspectioned cases
List of latest Inspectioned patents
In the last 3 years (2021-12-01 ~ 2024-11-30), there were 24 patents Inspection from third parties. The average number of Inspection is 1.2 times. The most recently Inspection patent is 特開2022-178662 "静電荷像現像剤、プロセスカートリッジ、画像形成装置及び画像形成方法" (Inspection day 2024-11-26) , next is 特開2022-134685 "トナー、画像形成装置及び画像形成方法、並びに印刷物の製造方法" (Inspection day 2024-10-09) .
| - | No. | Title | Inspection days |
|---|---|---|---|
| 1 | 特開2022-178662 | 静電荷像現像剤、プロセスカートリッジ、画像形成装置及び画像形成方法 | 2024-11-26 |
| 2 | 特開2022-134685 | トナー、画像形成装置及び画像形成方法、並びに印刷物の製造方法 | 2024-10-09 |
| 3 | 特開2023-005605 | キャリア、現像剤、補給用現像剤、画像形成装置、プロセスカートリッジ及び画像形成方法 | 2024-09-03 |
| 4 | 特開2022-106478 | 電子写真画像形成システム | 2024-08-29 |
| 5 | 特許7551437 | 磁性キャリア | 2024-08-07 |
| 6 | 特許7523918 | 磁性キャリア及び二成分系現像剤 | 2024-03-05 |
| 7 | 特許7475916 | トナー及びトナーの製造方法 | 2024-02-13 |
| 8 | 特開2021-162809 | トナー、現像剤及び画像形成装置 | 2024-02-08 |
| 9 | 特許7475907 | トナー | 2024-02-07 |
| 10 | 特許7543697 | トナー、トナー収容容器、現像剤、現像装置、プロセスカートリッジ、及び画像形成装置 | 2023-10-13 |
| 11 | 特許7423917 | 顔料分散性、および熱安定性に優れたポリエステル樹脂 | 2023-07-24 |
| 12 | 特許7415450 | 現像剤、現像装置、プロセスカートリッジ及び画像形成装置 | 2023-05-25 |
| 13 | 特許7335579 | 電子写真現像剤用キャリア芯材とその製造方法、並びに該キャリア芯材を備えた電子写真現像剤用キャリアと現像剤 | 2023-05-08 |
| 14 | 特許7414534 | トナー製造用機械式粉砕機、トナーの製造方法及びトナー製造システム | 2023-03-22 |
| 15 | 特許6387122 | ワックス組成物 | 2023-03-08 |
| 16 | 特許7355253 | 顔料、化粧料、インキ、塗料、トナー、及び成形物 | 2023-03-07 |
| 17 | 特許7275693 | 画像形成装置および画像形成方法 | 2022-11-07 |
| 18 | 特許7169199 | グラフェン含有トナーおよびその関連方法 | 2022-08-19 |
| 19 | 特許7389542 | 画像形成装置 | 2022-06-21 |
| 20 | 特許7175592 | 静電荷像現像用トナー、静電荷像現像剤、トナーカートリッジ、プロセスカートリッジ、画像形成装置及び画像形成方法 | 2022-03-29 |
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), 183 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6607806 "疎水性異形シリカ粉末、その製造方法、及びそれを用いたトナー用外添剤" (4 times) , and the next most inspection patent is 特許7423917 "顔料分散性、および熱安定性に優れたポリエステル樹脂" (4 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6607806 | 疎水性異形シリカ粉末、その製造方法、及びそれを用いたトナー用外添剤 | 4 times |
| 2 | 特許7423917 | 顔料分散性、および熱安定性に優れたポリエステル樹脂 | 4 times |
| 3 | 特許6758370 | ポリアミド微粒子およびその製造方法ならびにポリアミド微粒子組成物 | 4 times |
| 4 | 特許6577471 | シリカ微粉末及びその用途 | 3 times |
| 5 | 特許6289432 | トナー及びトナーの製造方法 | 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), 1,633 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6577427 "トナー用チタン酸ストロンチウム系微細粒子およびその製造方法" (42 times) , and the next most cited patent is 特開2018-155912 "静電荷像現像用トナー" (25 times) .
| - | No. | Title | |
|---|---|---|---|
| 1 | 特許6577427 | トナー用チタン酸ストロンチウム系微細粒子およびその製造方法 | 42 times |
| 2 | 特開2018-155912 | 静電荷像現像用トナー | 25 times |
| 3 | 特許6541465 | トナー | 20 times |
| 4 | 特許6746355 | トナー | 19 times |
| 5 | 特許6773702 | トナーバインダー及びトナー | 19 times |
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