2H171 電子写真一般。全体構成、要素技術 Patent Trends
The Theme Code "電子写真一般。全体構成、要素技術" had 488 patent application filings in the publication-lag-adjusted comparison period (2024-01-01 to 2024-10-31). This is a steady transition of +37 filings (8.2%) over 451 they had in the same period of the previous year (2023-01-01 to 2023-10-31).
The highest number of filings in 2021 with 633 cases, and their lowest number in 2023 with 529 cases (years covered: 2021, 2022, 2023, 2024).
The mean of the number of filings over the last 4 years (2021 to 2024, 2,350 cases in total) is 588, and the median is 594. The coefficient of variation (standard deviation/mean) is 0.07, and filings have been stable.
| Index | Value |
|---|---|
| Average | 588 patents |
| Std Dev | 41.6 |
| COV | 0.07 |
The number of filings has been decreasing for the publication-lag-adjusted last 3 years (2023 to 2025).
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 98 cases | -82.7% |
| 2024 year | 568 cases | +7.37% |
| 2023 year | 529 cases | -14.68% |
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 電子写真一般。全体構成、要素技術[2H171] for the period of the last 6 years (2020 to 2025). You can compare the information in this report with the trends in your competitors’ patent filings and technologies.
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 電子写真一般。全体構成、要素技術, 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, and their top coapplicants (joint research partners, alliance partners). 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.
電子写真一般。全体構成、要素技術, Changes in the Number of JP Patents/Patent Applications
The changes in the number of patent filings of 電子写真一般。全体構成、要素技術 over the last 6 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.
電子写真一般。全体構成、要素技術 JP patent filing trend (unit: cases)
| Year | Cases |
|---|---|
| 2021 | 633 |
| 2022 | 620 |
| 2023 | 529 |
| 2024 | 568 |
| 2025 | 98 |
Patent Landscape
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 電子写真一般。全体構成、要素技術 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.
Keywords (importance)
Top keywords frequently used in patent filings for 電子写真一般。全体構成、要素技術 are shown below.
Top keywords for 電子写真一般。全体構成、要素技術
| Keyword | Score |
|---|---|
| 画像 | 100.0 |
| 部材 | 90.52 |
| 方向 | 79.14 |
| 位置 | 69.45 |
| 本体 | 53.44 |
| 回転 | 34.09 |
| 間 | 28.68 |
| 支持 | 27.31 |
| 移動 | 25.93 |
| 現像 | 21.69 |
| 感光 | 20.57 |
| 配置 | 19.77 |
| ローラ | 19.01 |
| ドラム | 17.69 |
| 開閉 | 14.48 |
Search Set (Analysis Patents)
This patent analysis report was created for a patent search set of 2,448 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.
電子写真一般。全体構成、要素技術[2H171]
Recent publications
| Publication No. | Title | Bibliographic info | Theme |
|---|---|---|---|
| 1. JPA2026-147241 | 電子写真用部材、現像装置、電子写真プロセスカートリッジ及び電子写真画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-05 ・Publication date 2026-09-17 | 2H077, 2H171 |
| 2. JPA2026-147786 | 画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-06 ・Publication date 2026-09-17 | 2H077, 2H171 |
| 3. JPA2026-148104 | 無線通信基板を備えた画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-07 ・Publication date 2026-09-17 | 2C061, 2H171, 4E352 |
| 4. JPA2026-148055 | 画像形成装置 | ・Applicant エトリア株式会社 ・Filing date 2025-03-07 ・Publication date 2026-09-17 | 2H171 |
| 5. JPA2026-147784 | カートリッジ及び画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-06 ・Publication date 2026-09-17 | 2H171 |
| 6. JPA2026-147788 | 画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-06 ・Publication date 2026-09-17 | 2H171 |
| 7. JPA2026-148183 | リサイクルユニットの製造方法、およびリサイクルドラムユニットの製造方法 | ・Applicant ブラザー工業株式会社 ・Filing date 2025-03-07 ・Publication date 2026-09-17 | 2H171 |
| 8. JPA2026-145618 | 画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-03-03 ・Publication date 2026-09-15 | 2C162, 2H171, 5C051 |
| 9. JPA2026-145279 | 画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2020-03-11 ・Publication date 2026-09-10 | 2H077, 2H171 |
| 10. JPA2026-144221 | 現像カートリッジ | ・Applicant ブラザー工業株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H077, 2H171 |
| 11. JPA2026-144238 | ドラムユニット | ・Applicant ブラザー工業株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H171 |
| 12. JPA2026-144370 | 画像形成装置 | ・Applicant ブラザー工業株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H171, 2H270 |
| 13. JPA2026-144245 | 画像形成装置 | ・Applicant ブラザー工業株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H171 |
| 14. JPA2026-144914 | 画像形成装置 | ・Applicant キヤノン株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H134, 2H171 |
| 15. JPA2026-144373 | 画像形成装置 | ・Applicant ブラザー工業株式会社 ・Filing date 2025-02-28 ・Publication date 2026-09-09 | 2H171, 2H270 |
Same industry / competition company information (JP)
{'ja': '技術テーマ「電子写真一般。全体構成、要素技術」における上位出願人の特許情報を以下に示します。各企業の特許件数を比較することで、過去および現在の各社の技術テーマにおける研究開発状況や、技術テーマにおける各社の位置付けを確認できます。なお、特許は出願から公開までに一年半のタイムラグがあるため、一年半より直近の状況については分析できない点に注意する必要があります。', 'en': "The patent information of the higher applicant in the technical theme 電子写真一般。全体構成、要素技術 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. Patents have a time lag of about 18 months from filing to publication."}
Trends in filing of joint patent applications in the last 3 years (2023 to 2025).
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 (2023 to 2025) with 467 cases, followed by ブラザー工業株式会社 with 193 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 467 cases |
| ブラザー工業株式会社 | 193 cases |
| 京セラドキュメントソリューションズ株式会社 | 159 cases |
| 株式会社リコー | 83 cases |
| 富士フイルムビジネスイノベーション株式会社 | 79 cases |
| シャープ株式会社 | 58 cases |
Trends in filing of joint patent applications for the target period (2020 to 2025).
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 (2020 to 2025) with 1,275 cases, followed by ブラザー工業株式会社 with 551 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,275 cases |
| ブラザー工業株式会社 | 551 cases |
| 京セラドキュメントソリューションズ株式会社 | 358 cases |
| 株式会社リコー | 321 cases |
| 富士フイルムビジネスイノベーション株式会社 | 283 cases |
| シャープ株式会社 | 158 cases |
Same industry / competition company JP patent filing ranking
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業の長期推移をどう読むか
同業や競合企業の長期的な特許出願件数の推移から、長期トレンドと出願件数の山や谷を確認することができます。
解説の続きを読む
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 6 companies in the same industry over the past 6 years.
Competitor filing ranking
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,275 |
| ブラザー工業株式会社 | 551 |
| 京セラドキュメントソリューションズ株式会社 | 358 |
| 株式会社リコー | 321 |
| 富士フイルムビジネスイノベーション株式会社 | 283 |
| シャープ株式会社 | 158 |
Top company information (JP)
{'ja': '技術テーマ「電子写真一般。全体構成、要素技術」における上位出願人の特許情報を以下に示します。各企業の特許件数を比較することで、過去および現在の各社の技術テーマにおける研究開発状況や、技術テーマにおける各社の位置付けを確認できます。なお、特許は出願から公開までに一年半のタイムラグがあるため、一年半より直近の状況については分析できない点に注意する必要があります。', 'en': "The patent information of the higher applicant in the technical theme 電子写真一般。全体構成、要素技術 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. Patents have a time lag of about 18 months from filing to publication."}
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業との比較のポイント
同業や競合企業が特許に注力している分野を知ることで、自社の戦略や製品開発の方向性を把握することができます。
解説の続きを読む
Trends in filing of joint patent applications in the last 3 years (2023 to 2025).
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 (2023 to 2025) with 467 cases, followed by ブラザー工業株式会社 with 193 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 467 cases |
| ブラザー工業株式会社 | 193 cases |
| 京セラドキュメントソリューションズ株式会社 | 159 cases |
Trends in filing of joint patent applications for the target period (2020 to 2025).
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 (2020 to 2025) with 1,275 cases, followed by ブラザー工業株式会社 with 551 cases.
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,275 cases |
| ブラザー工業株式会社 | 551 cases |
| 京セラドキュメントソリューションズ株式会社 | 358 cases |
Top company JP patent filing ranking
Below is a ranking of the number of JP patent applications by 電子写真一般。全体構成、要素技術’s top 3 coapplicants over the last 6 years.
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業の長期推移をどう読むか
同業や競合企業の長期的な特許出願件数の推移から、長期トレンドと出願件数の山や谷を確認することができます。
解説の続きを読む
Top co-applicant filing ranking
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,275 |
| ブラザー工業株式会社 | 551 |
| 京セラドキュメントソリューションズ株式会社 | 358 |
Top company, Change in the Number of JP Patents
Below is a patent map showing the changes in the numbers of JP patent filings by 電子写真一般。全体構成、要素技術’s top 3 coapplicants over the last 6 years.
Top co-applicant filing ranking
| Name | Cases |
|---|---|
| キヤノン株式会社 | 1,275 |
| ブラザー工業株式会社 | 551 |
| 京セラドキュメントソリューションズ株式会社 | 358 |
Top company details
Trends in filing of joint patent applications with キヤノン株式会社
電子写真一般。全体構成、要素技術 filed 1,275 joint applications with キヤノン株式会社 for the analysis period (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 1,229 cases in total) is 246, and the median is 226. The coefficient of variation (standard deviation/mean) is 0.25, and filings have been moderate fluctuations.
The number of filings has been decreasing for the publication-lag-adjusted last 3 years (2023 to 2025). The highest number of filings in 2020 with 364 cases, and their lowest number in 2023 with 195 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 246 patents |
| Std Dev | 60.9 |
| COV | 0.25 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 46 cases | -79.6% |
| 2024 year | 226 cases | +15.90% |
| 2023 year | 195 cases | -17.72% |
Trends in filing of joint patent applications with ブラザー工業株式会社
電子写真一般。全体構成、要素技術 filed 551 joint applications with ブラザー工業株式会社 for the analysis period (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 542 cases in total) is 108, and the median is 100. The coefficient of variation (standard deviation/mean) is 0.17, and filings have been moderate fluctuations.
The highest number of filings in 2020 with 137 cases, and their lowest number in 2024 with 88 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 108 patents |
| Std Dev | 18.0 |
| COV | 0.17 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 9 cases | -89.8% |
| 2024 year | 88 cases | -8.33% |
| 2023 year | 96 cases | -4.00% |
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
電子写真一般。全体構成、要素技術 filed 358 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 (2020 to 2025).
The mean of the number of filings over the last 5 years (2020 to 2024, 350 cases in total) is 70.0, and the median is 73.0. The coefficient of variation (standard deviation/mean) is 0.24, and filings have been moderate fluctuations.
The number of filings has been increasing for the publication-lag-adjusted last 3 years (2023 to 2025). The highest number of filings in 2020 with 95 cases, and their lowest number in 2022 with 46 cases (years covered: 2020, 2021, 2022, 2023, 2024).
| Index | Value |
|---|---|
| Average | 70.0 patents |
| Std Dev | 16.8 |
| COV | 0.24 |
| Year | Cases | YOY |
|---|---|---|
| 2025 year | 8 cases | -89.7% |
| 2024 year | 78 cases | +6.85% |
| 2023 year | 73 cases | +58.7% |
Providing patent information to the media (newspapers, magazines, etc.)
"Patent Integration Report" is a web service provided by "Patent Integration Co., Ltd." operated by patent attorneys who are experts in intellectual property rights. Based on the latest patent data, this is one of the largest patent report services in Japan that provides information on technology trends in various companies and technology fields.
The purpose of this web service is to make intellectual property information familiar to many people, regardless of whether they have an interest in intellectual property rights, and to make use of it.
We actively provide various types of patent information that can be used in various media articles such as newspapers, magazines, and web media. Please feel free to contact us from "Inquiry form for details on the content of patent information that can be provided, conditions for provision, etc. Please contact us.
About this Site
All rights related to the data, documents and charts belong to "an integrated patent search/analysis service provider, Patent Integration". Please specify the source “Patent Integration Report, URL: https://patent-i.com/report/en/" when inserting them into in-house materials, external report materials, etc., regardless of whether they are paid or free of charge.
Patent data is obtained by aggregating and analyzing the latest patent data issued by the Patent Offices of respective countries and jurisdictions and by WIPO. Although we take great care in publishing and analyzing the results, we do not guarantee the correctness of the data. We appreciate your understanding.
If you have any concerns about this service, please feel free to contact us.
Credit notation
・MeCab user dictionary for science technology term © National Bioscience Database Center licensed under CC Attribution-Share Alike 4.0 International
Our Commitment to Safety and Security
Patent Integration Co., Ltd. is committed to providing high-quality patent information based on the latest patent data on more than 45 million cases collected from the Patent Offices in Japan, the U.S., Europe, and Taiwan and from PCT publication. 
Patent Integration Co., Ltd. collects the patent data from the Patent Offices in Japan, the U.S., Europe, and Taiwan and from PCT publications to provide it widely in the form of reports so that anyone can check patent information and patent trends with confidence. 
Patent Integration Co., Ltd. is committed to various efforts to enhance the reliability of the information and to allow users to search patent information with confidence.
佐藤総合特許事務所 代表弁理士
佐藤 寿のコメント
競合企業との比較のポイント
同業や競合企業が特許に注力している分野を知ることで、自社の戦略や製品開発の方向性を把握することができます。
解説の続きを読む