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For the Inventor, By the Inventor

Mishima, Japan

Koichi Ooishi

This inventor holds 8 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Canon Kabushiki Kaisha. Active years: 2021-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Ooishi. Retrieved from https://idiyas.com/inventor/koichi-ooishi

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

Calculating rank
USPTO Granted Patents = 8 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Mishima, JP (2021 - 2023)
  • Tokyo, JP (2021 - 2024)

Company Filing History:

goldMedal8 out of 93,136 
 
Canon Kabushiki Kaisha
 patents

Years Active: 2021-2025

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8 patents (USPTO):Explore Patents
1. 12298703 - Cartridge including photosensitive drum and developing roller that can be easily separated (2025-05-13),
2. 12045004 - Cartridge including photosensitive drum and developing roller that can be easily separated (2024-07-23),
3. 11835888 - Developing device, cartridge, image forming apparatus (2023-12-05),
4. 11789401 - Cartridge including photosensitive drum and developing roller that can be easily separated (2023-10-17),
5. 11493878 - Cartridge including photosensitive drum and developing roller that can be easily separated (2022-11-08),
6. 11372348 - Developing device, cartridge, image forming apparatus (2022-06-28),
7. 11188021 - Cartridge including an image bearing member and developer bearing member that can be easily separated (2021-11-30),
8. 10928751 - Remanufacturing method for developing apparatus and cartridge (2021-02-23),

Title: Koichi Ooishi: Pioneering Inventor from Mishima

Introduction: Koichi Ooishi is a renowned inventor hailing from Mishima, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Koichi Ooishi holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With over two decades of experience in the industry, Koichi Ooishi has worked with leading tech companies to develop cutting-edge products that have revolutionized various sectors.

Collaborations: Throughout his career, Koichi Ooishi has collaborated with top researchers, engineers, and scientists from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Koichi Ooishi's passion for innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and shape the future of 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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