Hiroyasu Koyama

This inventor holds 26 USPTO granted patents, primarily in Pharmaceutical Compositions. Top assignee: Nisshin Flour Milling Co., Ltd.. Active years: 1976-1993.

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

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

USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 4

Forward Citations = 90(Granted Patents)

Location History:

Ohi, JA (1976)
Saitama, JP (1990 - 1991)
Ageo, JP (1981 - 1993)

Company Filing History:

26 out of 200

Nisshin Flour Milling Co., Ltd.

patents

Years Active: 1976-1993

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Areas of Expertise:

Pyridinecarboxylic Acid Amide

Nicotinic Acid Derivatives

Rhodanine Derivatives

1,4-Dihydropyridine

Isoprenylamine Derivatives

Optically Active Isocarbostyril

Decaprenylamine Derivatives

Monophenylamine Derivatives

Pharmaceutical Compositions

Interferon Inducing

Anti-Vaccinia

Anti-Influenza

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5250526 - Pyridinecarboxylic acid amide derivatives and pharmaceutical (1993-10-05),

2. 5025012 - Nicotinic acid derivatives and pharmaceutical compositions comprising (1991-06-18),

3. 4994456 - Pyridinecarboxylic acid amide derivatives and pharmaceutical (1991-02-19),

4. 4897406 - Rhodanine derivatives and pharmaceutical compositions (1990-01-30),

5. 4877797 - 1,4-Dihydropyridine derivatives and pharmaceutical compositions (1989-10-31),

6. 4857529 - Interferon inducing, anti-vaccinia, and/or anti-influenza compositions (1989-08-15),

7. 4757071 - 1,4-dihydropyridine derivatives, and pharmaceutical compositions (1988-07-12),

8. 4755601 - Nonyl prenyl-N heterocyclics (1988-07-05),

9. 4723008 - Isoprenylamine derivatives (1988-02-02),

10. 4700002 - Isoprenylamine derivatives (1987-10-13),

11. 4659833 - Optically active isocarbostyril derivatives and a method of preparing (1987-04-21),

12. 4658063 - Isoprenylamine derivatives (1987-04-14),

13. 4645862 - Isoprenylamine derivatives (1987-02-24),

14. 4568765 - Isoprenylamine derivatives (1986-02-04),

15. 4555365 - Isoprenylic acid amide derivatives (1985-11-26),

Title: Innovations of Hiroyasu Koyama: A Leading Inventor in Pharmaceutical Compounds

Introduction: Hiroyasu Koyama is a prolific inventor based in Ageo, Japan, celebrated for his significant contributions to the field of pharmaceuticals. With an impressive portfolio of 26 patents, Koyama has focused on developing innovative compounds that exhibit crucial therapeutic properties. His work is instrumental in advancing treatments for various cardiovascular conditions.

Latest Patents: Koyama's recent patents showcase his expertise in creating novel pyridinecarboxylic acid amide derivatives and nicotinic acid derivatives. One such patent discloses compounds of the formula, wherein R₁ is hydrogen, C₁-C₃ alkyl, or diphenylmethyl; Y is --NH(CH₂)ₙ--R₂; R₂ is OH or --ONO₂. These innovative compounds demonstrate blood flow-increasing and hypotensive actions, making them valuable for the therapy or prevention of cardiovascular diseases. Another patent highlights the composition of nicotinic acid derivatives, which further emphasizes his focus on enhancing health outcomes through pharmaceutical advancements.

Career Highlights: Currently, Hiroyasu Koyama is associated with Nisshin Flour Milling Co., Ltd., where he continues to collaborate with talented professionals in the pharmaceutical sector. His dedication to research and innovation has led to significant advancements in the development of compounds that address critical health challenges.

Collaborations: Koyama has worked closely with notable colleagues such as Yoshiyuki Tahara and Toshihiro Takahashi. Together, they contribute to the exploration of new therapeutic compounds, driving forward the potential of pharmaceutical applications and enhancing the value of their collective expertise.

Conclusion: Hiroyasu Koyama stands out as a pivotal figure in the realm of pharmaceutical innovations. His contributions through numerous patents form the backbone of vital advancements in treatments for cardiovascular diseases. The continuous efforts of Koyama, along with his collaborators, promise to enhance the scope of medical therapies, reflecting the ongoing importance of innovation in improving health and well-being.

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]