Tokyo, Japan

Hiroshi Okamoto

This inventor holds 66 USPTO granted patents and 15 published patent applications and 15 EPO patents, primarily in Polycarbonate Resin Technology (CPC class C07C). Top assignees: Japan Tobacco Inc., Minolta Camera Kabushiki Kaisha, Hitachi, Ltd.. Active years: 1978-2026.

USPTO Granted Patents = 66 

% Patents Active = 84.8

 

Average Co-Inventor Count = 2.3

ph-index = 13

Forward Citations = 508(Granted Patents)

Forward Citations (Not Self Cited) = 492(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Toyokawa, JP (1981)
  • Ohme, JP (1980 - 1984)
  • Oume, JP (1991)
  • Shinshiro, JP (1985 - 1992)
  • Ome, JP (1991 - 1998)
  • Sendai, JP (1991 - 2000)
  • Miyagi JP (2005)
  • Osaka-shi, Osaka-fu, JP (2009)
  • Chiyoda-ku, JP (2013)
  • Takatsuki, JP (2007 - 2015)
  • Tokyo, JP (1978 - 2023)
  • Osaka, JP (1989 - 2024)

Company Filing History:

goldMedal11 out of 1,065 
 
Japan Tobacco Inc.
 patents
silverMedal9 out of 2,979 
 
Minolta Camera Kabushiki Kaisha
 patents
bronzeMedal8 out of 42,713 
 
Hitachi, Ltd.
 patents
4. 6 out of 47 
 
Daiichi Kigenso Kagaku Kogyo Co., Ltd.
 patents
5. 5 out of 1,604 
 
Teijin Limited
 patents
6. 4 out of 1,036 
 
Shiseido Company, Limited
 patents
7. 4 out of 4 
 
Westwood Co., Ltd.
 patents
8. 3 out of 2,643 
 
The Furukawa Electric Co., Ltd.
 patents
9. 2 out of 28,906 
 
Ricoh Company, Ltd.
 patents
10. 2 out of 127 
 
Teijin Chemicals Limited
 patents
11. 2 out of 1,048 
 
Tohoku University
 patents
12. 1 out of 690 
 
Daicel Corporation
 patents
13. 1 out of 12 
 
Japan Tabacco Inc.
 patents
14. 1 out of 1,762 
 
Kaneka Corporation
 patents
15. 1 out of 655 
 
Matsushita Electronics Corporation
 patents
16. 1 out of 76 
 
Minolta Camera Co., Ltd.
 patents
17. 1 out of 522 
 
Nippon Telegraph and Telephone Public Corporation
 patents
18. 1 out of 177 
 
The Tokyo Electric Power Company, Incorporated
 patents
19. 1 out of 2 
 
Vertex Standard USA, Inc.
 patents
20. 4 out of 834,307 
Other
 patents
where one patent can have more than one assignee

Years Active: 1978-2026

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Areas of Expertise:
Polycarbonate Resin
CETP Inhibitors
Electronic Equipment
Aromatic Polycarbonate
Zirconia Oxide
Porous Zirconia
Enzyme Preparation
Autoimmune Diagnostics
Rod-Shaped Article
Power Flow Optimization
Image Sensor
Conductive Film
66 patents (USPTO):Explore Patents

Title: The Innovative Mind of Hiroshi Okamoto

Introduction: Hiroshi Okamoto is a visionary inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroshi Okamoto holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his commitment to pushing the boundaries of what is possible in the modern world.

Career Highlights: With a career spanning over two decades, Hiroshi Okamoto has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Hiroshi Okamoto has collaborated with top researchers, engineers, and scientists both in Japan and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Hiroshi Okamoto's relentless pursuit of innovation and his passion for creating a better future through technology make him a true pioneer in the world of inventions. His work continues to inspire the next generation of inventors and innovators worldwide.

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