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For the Inventor, By the Inventor

Yokohama, Japan

Shinji Takagi

This inventor holds 54 USPTO granted patents and 1 published patent application and 11 EPO patents, primarily in Electrophotographic Technology (CPC class G03G). Top assignees: Canon Kabushiki Kaisha, Canon Anelva Corporation. Active years: 1995-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinji Takagi. Retrieved from https://idiyas.com/inventor/shinji-takagi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 54 

% Patents Active = 63.0

 

Average Co-Inventor Count = 4.1

ph-index = 18

Forward Citations = 730(Granted Patents)

Forward Citations (Not Self Cited) = 587(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa, JP (2003 - 2010)
  • Tokyo, JP (2010)
  • Kawasaki, JP (1995 - 2014)
  • Mishima, JP (2001 - 2014)
  • Yokohama, JP (2013 - 2020)

Company Filing History:

goldMedal51 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
silverMedal3 out of 363 
 
Canon Anelva Corporation
 patents

Years Active: 1995-2025

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Areas of Expertise:
Electrophotographic Photosensitive Member
Process Cartridge
Electrophotographic Apparatus
Manufacturing Method
Ink-Jet Printing
Recording Apparatus
Liquid Detection
Power Supply Circuit
Printhead
Magnetoresistance Elements
Data Signal Transfer
Condensed Polycyclic Aromatic Compound
54 patents (USPTO):Explore Patents
1. 12308254 - Load lock device (2025-05-20),
2. 12211735 - Load lock device (2025-01-28),
3. 10768539 - Electrophotographic photosensitive member, production method therefor, process cartridge, and electrophotographic image-forming apparatus (2020-09-08),
4. 10761442 - Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of producing electrophotographic photosensitive member (2020-09-01),
5. 10670979 - Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of manufacturing electrophotographic photosensitive member (2020-06-02),
6. 10488771 - Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus (2019-11-26),
7. 10488769 - Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge each including the electrophotographic photosensitive member (2019-11-26),
8. 10451984 - Production method of electrophotographic photosensitive member, electrophotographic photosensitive member, process cartridge and electrophotographic apparatus (2019-10-22),
9. 10310395 - Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge (2019-06-04),
10. 10120331 - Electrophotographic photosensitive member, process for producing electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge including electrophotographic photosensitive member (2018-11-06),
11. 10067431 - Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus (2018-09-04),
12. 10042272 - Electrophotographic photosensitive member, method for producing the same, process cartridge and electrophotographic apparatus (2018-08-07),
13. 9946175 - Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and condensed polycyclic aromatic compound (2018-04-17),
14. 9829810 - Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method for producing electrophotographic photosensitive member (2017-11-28),
15. 9740117 - Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and condensed polycyclic aromatic compound (2017-08-22),

Title: Shinji Takagi: Pioneering Innovator in Electrophotographic Technology

Introduction:

Shinji Takagi, a visionary inventor based in Yokohama, Japan, has made significant contributions to the world of technology through his passion for innovation and relentless pursuit of excellence. With a remarkable portfolio of 51 patents, Takagi's impact on the field of electrophotographic technology is truly profound, inspiring the next generation of inventors around the globe.

Latest Patents:

Among his latest patents, Shinji Takagi has revolutionized the electrophotographic industry with inventions such as the electrophotographic photosensitive member manufacturing method. This groundbreaking technology aims to suppress image smearing during repeated use, while ensuring optimal wear resistance and electrical characteristics. The incorporation of a copolymer of a hole-transportable compound with maleimide groups has set a new standard in electrophotographic image-forming apparatuses.

Career Highlights:

Currently affiliated with Canon Kabushiki Kaisha, Shinji Takagi continues to spearhead innovative projects and drive technological advancements within the company. His expertise in electrophotographic technology has led to the development of cutting-edge solutions that enhance printing and imaging processes.

Collaborations:

Throughout his illustrious career, Takagi has collaborated with esteemed colleagues such as Koichi Nakata and Masaki Nonaka. Together, they have pioneered research initiatives that have redefined the possibilities within the electrophotographic industry and cemented Takagi's reputation as a trailblazer in the field.

Conclusion:

In conclusion, Shinji Takagi's unwavering dedication to innovation and his groundbreaking contributions to electrophotographic technology have left an indelible mark on the industry. His legacy will undoubtedly endure for years to come, serving as a beacon of inspiration for aspiring inventors worldwide.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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