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For the Inventor, By the Inventor

Kawaguchi, Japan

Naoki Fuei

This inventor holds 12 USPTO granted patents and 1 EPO patent. Top assignees: Canon Kabushiki Kaisha, Canon Aptex. Active years: 1991-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoki Fuei. Retrieved from https://idiyas.com/inventor/naoki-fuei

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

USPTO Granted Patents = 12

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 81(Granted Patents)


Location History:

  • Kawaguchi, JP (1991 - 2002)
  • Odawara, JP (2002 - 2003)
  • Fujisawa, JP (2016)

Company Filing History:

goldMedal12 out of 92,901 
 
Canon Kabushiki Kaisha
 patents
silverMedal1 out of 28 
 
Canon Aptex
 patents
where one patent can have more than one assignee

Years Active: 1991-2025

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12 patents (USPTO):Explore Patents
1. 12353144 - Charging device, process cartridge, and image forming apparatus (2025-07-08),
2. 9261811 - Developer carrying member, developing assembly, process cartridge, and image forming apparatus (2016-02-16),
3. 6558781 - Conductive roller, process cartridge and image forming apparatus (2003-05-06),
4. 6400919 - Conducting member, process cartridge and image-forming apparatus (2002-06-04),
5. 6337962 - Process cartridge and electrophotographic apparatus (2002-01-08),
6. 6337103 - Process for remanufacturing charging member, charging member remanufactured by the remanufacturing process, and process cartridge having the charging member (2002-01-08),
7. 5705274 - Charging member, process for producing charging member, and process (1998-01-06),
8. 5691807 - Process cartridge and image forming apparatus with indicating means (1997-11-25),
9. 5678140 - Reconditioning method for charging roller (1997-10-14),
10. 5543473 - Electrophotographic photosensitive member, and electrophotographic (1996-08-06),
11. 5219453 - Sheet binder (1993-06-15),
12. D319464 - Toner case for copying machine (1991-08-27),

Title: The Innovative Journey of Naoki Fuei

Introduction

Naoki Fuei, an accomplished inventor based in Kawaguchi, Japan, has made significant contributions to the field of imaging technology. With 11 patents to his name, Fuei's innovations have had a notable impact on the functionality and efficiency of imaging apparatuses.

Latest Patents

Fuei's recent inventions include a range of advanced imaging components. His first patent describes a "developing roller" capable of carrying toner effectively to a photosensitive drum. This innovative roller consists of a rubber layer and a surface layer containing alumina, which provides high volume resistivity for improved performance. Another noteworthy invention is the "conductive roller," which maintains stable conductivity under varying environmental conditions while minimizing additive bleed-out. This roller features an electroconductive support and an elastic coating formulated with specific rubber types and additional compounds, making it an essential component in electrophotographic apparatuses.

Career Highlights

Naoki Fuei has built a remarkable career in the technology industry, particularly with Canon, where he worked for Canon Kabushiki Kaisha and Canon Aptex. His tenure at these companies provided him with the platform needed to explore innovative technologies and file numerous patents that reflect his expertise.

Collaborations

During his career, Fuei collaborated with talented individuals, including Hiroshi Inoue and Yuzi Ishihara. Together, they contributed to the advancements in imaging technologies and supported the development of cutting-edge products that enhance the user experience in imaging devices.

Conclusion

Naoki Fuei’s innovative spirit and dedication to advancing imaging technologies are evident through his impressive portfolio of patents. His contributions not only reflect his expertise but also demonstrate the importance of collaboration in driving technological progress. As he continues to explore new ideas, Fuei remains a key figure in the landscape of imaging technology.

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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