logo

For the Inventor, By the Inventor

Himeji, Japan

Hiroshi Koyama

This inventor holds 14 USPTO granted patents. Top assignees: Daicel Chemical Industries, Ltd., Daicel Corporation, Tokyo Ohka Kogyo Co., Ltd.. Active years: 1992-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Koyama. Retrieved from https://idiyas.com/inventor/hiroshi-koyama-bosmaugb

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

USPTO Granted Patents = 14

% Patents Active = 85.7

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 45(Granted Patents)


Location History:

  • Hiroshima, JP (1996 - 1999)
  • Hidaka, JP (2003 - 2005)
  • Himeji, JP (1992 - 2023)

Company Filing History:

goldMedal11 out of 1,165 
 
Daicel Chemical Industries, Ltd.
 patents
silverMedal3 out of 696 
 
Daicel Corporation
 patents
bronzeMedal1 out of 1,236 
 
Tokyo Ohka Kogyo Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1992-2023

Loading Chart...
14 patents (USPTO):Explore Patents
1. 11643476 - Cellulose ester and molded article thereof (2023-05-09),
2. 10927190 - Cellulose ester and molded article thereof (2021-02-23),
3. 9862695 - Monomer having N-acyl carbamoyl group and lactone skeleton, and polymeric compound (2018-01-09),
4. 8637623 - Monomer having electron-withdrawing substituent and lactone skeleton, polymeric compound, and photoresist composition (2014-01-28),
5. 7407733 - [object Object] (2008-08-05),
6. 7033726 - Photoresist polymeric compound and photoresist resin composition (2006-04-25),
7. 6900360 - High-purity 1,3-butylen glycol, process for producing 1,3-butylene glycol, and process for producing by-product butanol and butyl acetate (2005-05-31),
8. 6610638 - High purity 1,3-propanediol derivative solvent, process for producing the same, and use thereof (2003-08-26),
9. 5886228 - Highly purified 1-aminopropanediol-2,3 (1999-03-23),
10. 5750792 - Highly purified 1-aminopropanediol-2,3 (1998-05-12),
11. 5556516 - Method for the purification of 1-aminopropanediol-2,3 (1996-09-17),
12. 5391821 - Process for producing carboxylic acids (1995-02-21),
13. 5214203 - Process for producing carboxylic acids (1993-05-25),
14. 5089650 - Process for producing carbonic acid ester (1992-02-18),

Title: Hiroshi Koyama - Innovative Inventor from Himeji, Japan

Introduction: Hiroshi Koyama is a renowned inventor hailing from Himeji, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hiroshi Koyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his versatility and forward-thinking approach to innovation.

Career Highlights: With a career spanning over two decades, Koyama has worked with leading research institutions and universities to develop cutting-edge technologies that have revolutionized the industry.

Collaborations: Throughout his career, Hiroshi Koyama has collaborated with top companies in Japan and internationally, fostering a culture of innovation and excellence in all his projects.

Conclusion: Hiroshi Koyama's passion for innovation and his dedication to pushing the boundaries of technology make him a true pioneer in the world of inventions.

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]
Loading…