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For the Inventor, By the Inventor

Yokohama, Japan

Kazuyuki Sugihara

This inventor holds 34 USPTO granted patents and 1 EPO patent, primarily in Image Forming Technology. Top assignee: Ricoh Company, Ltd.. Active years: 1990-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyuki Sugihara. Retrieved from https://idiyas.com/inventor/kazuyuki-sugihara

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

USPTO Granted Patents = 34

% Patents Active = 91.2


Average Co-Inventor Count = 2.5

ph-index = 18

Forward Citations = 805(Granted Patents)


Location History:

  • Kawasaki, JP (1990 - 1992)
  • Fujisawa, JP (1995)
  • Tokohama, JP (1997)
  • Yokohama, JP (1996 - 2006)
  • Kanagawa, JP (1998 - 2007)
  • Kanagawa-ken, JP (2003 - 2007)

Company Filing History:

goldMedal34 out of 28,934 
 
Ricoh Company, Ltd.
 patents

Years Active: 1990-2007

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Areas of Expertise:
Image Forming Apparatus
Developing Device
Photoconductive Drum
Toner Container
Rotary Developing Device
Developer Regulating Member
Agitation Device
Color Image Forming
Power Supply Mechanism
Cartridge Assembly
Developer Limiting Member
Effective Mixing
34 patents (USPTO):Explore Patents
1. 7272342 - Image forming apparatus having a detachable cartridge including a photoconductive drum with axis shaft having a minimal rotational eccentricity, and a method of assembling the image forming apparatus (2007-09-18),
2. 7212773 - Image forming apparatus (2007-05-01),
3. 7043182 - Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member (2006-05-09),
4. 6925277 - Developing device using a developer carrier formed with grooves and image forming apparatus including the same (2005-08-02),
5. 6763214 - Developing device and method for performing effective charging and mixing of developer and image forming apparatus using the developing device (2004-07-13),
6. 6751433 - Developing device and image forming apparatus using the same (2004-06-15),
7. 6615014 - Method and apparatus for image forming capable of performing an effective mixing of development agent (2003-09-02),
8. 6336020 - Image forming apparatus having an improved developer-supplying mechanism and method thereof (2002-01-01),
9. 6226481 - Image forming apparatus with control over developing unit during an idle running of an intermediate image transfer body (2001-05-01),
10. 6122469 - Image forming apparatus including a preventing mechanism for preventing (2000-09-19),
11. 6104900 - Image forming apparatus having an improved developer-supplying mechanism (2000-08-15),
12. 6072967 - PC drum integrated revolving type developing unit with pull-out supporter (2000-06-06),
13. 6070037 - Image forming apparatus having improved developer limiting member (2000-05-30),
14. 5991569 - PC drum integrated revolving type developing unit with pull-out supporter (1999-11-23),
15. 5956549 - Rotary developing device for an image forming apparatus (1999-09-21),

Title: Kazuyuki Sugihara: Innovator in Image Forming Technology

Introduction

Kazuyuki Sugihara, located in Yokohama, Japan, is a prominent inventor known for his significant contributions to the field of image forming technology. With a remarkable portfolio of 34 patents, he has developed innovative solutions that enhance the functionality and reliability of image forming apparatuses.

Latest Patents

Sugihara's latest patents reflect meticulous engineering aimed at overcoming challenges in image formation. One notable invention is an image forming apparatus that features a detachable cartridge containing a photoconductive drum with minimal rotational eccentricity. This innovation enhances the assembly process and operational efficiency of the apparatus. Another recent patent addresses the issue of developing density unevenness, resulting from misalignment in the rotational coupling sections that facilitate the developer carrier's movement. By allowing slight corrections in the position of the driven side rotational coupling section, Sugihara's design ensures optimal functionality and consistent image quality.

Career Highlights

Sugihara’s career has been marked by his association with Ricoh Company, Ltd., a leader in imaging and electronics. His work has consistently pushed the boundaries of technical innovation, focusing on improving existing technologies and addressing user needs through inventive solutions.

Collaborations

Throughout his career, Sugihara has collaborated with esteemed colleagues, including Tomoji Ishikawa and Katsuhiro Kosuge. Together, they have combined their expertise to develop cutting-edge technologies that bolster Ricoh’s product offerings and drive advancements in the imaging industry.

Conclusion

In conclusion, Kazuyuki Sugihara stands out as a key figure in the innovation landscape of image forming technology. His extensive patent portfolio demonstrates his commitment to enhancing technology and contributing to the advancement of the industry. Such innovations not only benefit manufacturers but also serve to improve user experience in image-related applications.

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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