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For the Inventor, By the Inventor

Yokohama, Japan

Hiroyuki Ohkaji

This inventor holds 8 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1991-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Ohkaji. Retrieved from https://idiyas.com/inventor/hiroyuki-ohkaji

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

USPTO Granted Patents = 8

% Patents Active = 87.5

Average Co-Inventor Count = 4.6

ph-index = 8

Forward Citations = 208(Granted Patents)


Location History:

  • Kanagawa, JP (2000)
  • Tokyo, JP (2000)
  • Yokohama, JP (1991 - 2005)

Company Filing History:

goldMedal8 out of 28,940 
 
Ricoh Company, Ltd.
 patents

Years Active: 1991-2005

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8 patents (USPTO):Explore Patents
1. 6898383 - Image forming apparatus (2005-05-24),
2. 6628903 - Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper (2003-09-30),
3. 6160969 - Image forming apparatus with a voltage applying unit for image transfer (2000-12-12),
4. 6144811 - Image forming apparatus having a sensor for sensing an amount of (2000-11-07),
5. 6085062 - Electrophotographic image forming apparatus (2000-07-04),
6. 5719684 - Image forming apparatus having an endless conveying and transferring (1998-02-17),
7. 5189479 - Image transferring device for a color image recorder (1993-02-23),
8. 4984024 - Image transfer unit for image recording apparatus (1991-01-08),

Title: Inventor Hiroyuki Ohkaji - Revolutionizing Technology in Yokohama

Introduction: Hiroyuki Ohkaji is a renowned inventor based in Yokohama, Japan, known for his groundbreaking contributions to the field of technology.

Latest Patents: Ohkaji holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: With over two decades of experience in the tech industry, Hiroyuki Ohkaji has worked with leading research institutions and universities to develop cutting-edge solutions that have had a significant impact on various sectors.

Collaborations: Throughout his career, Ohkaji has collaborated with top companies in Japan and internationally, fostering a culture of innovation and knowledge sharing to drive progress in the tech landscape.

Conclusion: Hiroyuki Ohkaji's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology in Yokohama and beyond.

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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