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For the Inventor, By the Inventor

Kanagawa, Japan

Yoshihiko Sakai

This inventor holds 9 USPTO granted patents. Top assignee: Fuji Xerox Co., Ltd.. Active years: 1991-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Sakai. Retrieved from https://idiyas.com/inventor/yoshihiko-sakai

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 6

Forward Citations = 120(Granted Patents)


Location History:

  • Kanagawa, JP (1991 - 1998)
  • Nakai-machi, JP (1999)
  • Ashigarakami-gun, JP (1999)

Company Filing History:

goldMedal9 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents

Years Active: 1991-1999

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9 patents (USPTO):Explore Patents
1. 5963756 - Color correction in a color image formation apparatus (1999-10-05),
2. 5894353 - Optical measuring method, optical measuring apparatus and image forming (1999-04-13),
3. 5887223 - Image forming apparatus having high image quality control mechanism (1999-03-23),
4. 5767559 - Thin film type photoelectric conversion device (1998-06-16),
5. 5462886 - Method of manufacturing a semiconductor element (1995-10-31),
6. 5348892 - Image sensor and method of manufacturing the same (1994-09-20),
7. 5182625 - Image sensor and method of manufacturing the same (1993-01-26),
8. 5075244 - Method of manufacturing image sensors (1991-12-24),
9. 5038190 - Photoelectric conversion device with disabled electrode (1991-08-06),

Title: Innovations of Yoshihiko Sakai

Introduction

Yoshihiko Sakai is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of image formation technology, holding a total of 9 patents. His work focuses on enhancing color image quality and measurement techniques.

Latest Patents

One of his latest patents involves color correction in a color image formation apparatus. This invention addresses the formation of color images using exposure units, photoconductive drums, and developing machines. It includes the creation of color patches using monochrome toners and overlapping colors, which are then analyzed to correct image formation conditions based on density differences. Another notable patent pertains to an optical measuring method and apparatus. This invention measures the density of images formed on paper surfaces by utilizing a specific reflection area and a photoelectric conversion element to capture light reflected from the surface.

Career Highlights

Yoshihiko Sakai has had a distinguished career at Fuji Xerox Co., Ltd., where he has been instrumental in developing innovative imaging technologies. His expertise in color image formation and optical measurement has positioned him as a key figure in the industry.

Collaborations

He has collaborated with various professionals, including his coworker Hiroyuki Hotta, to advance the field of imaging technology.

Conclusion

Yoshihiko Sakai's contributions to imaging technology through his patents and work at Fuji Xerox Co., Ltd. highlight his role as an influential inventor in the industry. His innovations continue to impact the way color images are formed and measured.

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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