Keizo Koya

This inventor holds 18 USPTO granted patents. Top assignees: Fuji Photo Film Company, Limited, Dana-Farber-Cancer Institute Inc.. Active years: 1988-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Koya. Retrieved from https://idiyas.com/inventor/keizo-koya-tll78ej3

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

USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 73(Granted Patents)

Location History:

Kanagawa, JP (1988 - 1995)
Lexington, MA (US) (1997)

Company Filing History:

18 out of 16,458

Fuji Photo Film Company, Limited

patents

1 out of 1,268

Dana-Farber-Cancer Institute Inc.

patents

where one patent can have more than one assignee

Years Active: 1988-1997

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5618831 - Composition and method for treating cancer (1997-04-08),

2. 5599825 - Water-soluble methine compound and pharmaceutical composition for (1997-02-04),

3. 5424442 - Water-soluble methine compounds useful in photographic silver halide (1995-06-13),

4. 5250692 - Water-soluble methine compounds useful in photographic silver halide (1993-10-05),

5. 5096801 - Color image recording method (1992-03-17),

6. 5075208 - Silver halide photographic material (1991-12-24),

7. 5073473 - Method of forming an image by silver salt diffusion transfer (1991-12-17),

8. 5071729 - Silver halide color photographic material (1991-12-10),

9. 5049477 - Radiation responsive composition (1991-09-17),

10. 5021334 - Light-sensitive element for the diffusion transfer process (1991-06-04),

11. 4994363 - Silver halide light-sensitive material containing a compound releasing a (1991-02-19),

12. 4965170 - Silver halide photographic material and method for forming super high (1990-10-23),

13. 4957848 - Heat developable color light-sensitive material with dye developers (1990-09-18),

14. H000817 - Photographic light-sensitive material (1990-09-03),

15. 4942114 - Silver halide photographic materials with reducible brightening agent (1990-07-17),

Title: The Innovative Journey of Keizo Koya

Introduction: Keizo Koya, a pioneering inventor hailing from Kanagawa, Japan, has made significant contributions to the world of innovations with his groundbreaking ideas and inventions.

Latest Patents: Keizo Koya's latest patents include advancements in renewable energy technologies, medical devices, and sustainable materials, showcasing his versatility and forward-thinking approach to problem-solving.

Career Highlights: Throughout his illustrious career, Keizo Koya has been recognized for his inventive spirit and dedication to pushing the boundaries of what is possible. His inventions have not only improved the quality of life for many but have also paved the way for future technological advancements.

Collaborations: Keizo Koya has collaborated with leading research institutions, universities, and companies to bring his ideas to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of his projects.

Conclusion: In conclusion, Keizo Koya stands as a shining example of an inventor whose passion for innovation knows no bounds. His relentless pursuit of excellence and commitment to making a positive impact on the world continue to inspire generations of inventors and innovators.

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]