Kikuo Ishizumi

This inventor holds 29 USPTO granted patents, primarily in Pharmaceutical Chemistry. Top assignees: Sumitomo Chemical Company, Limited, Sumitomo Pharmaceuticals Company Limited, Sumitono Pharmaceutical Company, Limited. Active years: 1976-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kikuo Ishizumi. Retrieved from https://idiyas.com/inventor/kikuo-ishizumi

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

USPTO Granted Patents = 29

% Patents Active = 100.0

Average Co-Inventor Count = 4.5

ph-index = 10

Forward Citations = 278(Granted Patents)

Location History:

Toyonaka, JA (1976)
Minoo, JA (1977)
Ikeda, JA (1976 - 1978)
Ikeda, JP (1978 - 1980)
Osaka, JP (1985)
Toyonaka, JP (1981 - 1990)

Company Filing History:

24 out of 6,961

Sumitomo Chemical Company, Limited

patents

4 out of 174

Sumitomo Pharmaceuticals Company Limited

patents

1 out of 1

Sumitono Pharmaceutical Company, Limited

patent

Years Active: 1976-1990

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Areas of Expertise:

Imide Derivatives

Benzodiazepine Derivatives

Aminonaphthacene

Quinazolinone

Pharmaceutical Use

Optically Active

Succinimide Derivatives

Antipsychotic Agents

Pain Treatment

Production Processes

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4937249 - Imide derivatives and their pharmaceutical use (1990-06-26),

2. 4843078 - Succinimide derivatives, and their production and use (1989-06-27),

3. 4745117 - Imide derivatives and compositions for use as antipsychotic agents (1988-05-17),

4. 4695580 - Phenylserine derivatives and processes for preparing the same (1987-09-22),

5. 4673668 - Aminonaphthacene derivatives (1987-06-16),

6. 4610986 - Aminonaphthacene derivatives and their production (1986-09-09),

7. 4598078 - N-(substituted piperazinyl) alkylbicyclic succinimide derivatives (1986-07-01),

8. 4562263 - Process for producing 3-(3,4-dihydroxyphenyl) serine (1985-12-31),

9. 4545936 - Novel aminonaphthacene derivatives and process for preparation thereof (1985-10-08),

10. 4544635 - Preparation of optically active (1985-10-01),

11. 4543355 - Substituted succinimides, compositions and method of use (1985-09-24),

12. 4540695 - Aminonaphthacene derivatives and their use (1985-09-10),

13. 4507303 - Succinimide derivatives, compositions and method of use (1985-03-26),

14. 4496739 - Intermediates to optically active (1985-01-29),

15. 4480109 - Process for producing threo-3-(3,4-dihydroxyphenyl)serine (1984-10-30),

Title: The Innovative Contributions of Kikuo Ishizumi

Introduction: Kikuo Ishizumi, based in Toyonaka, Japan, is a distinguished inventor known for his significant contributions to the field of pharmaceuticals. With 29 patents to his name, Ishizumi has developed compounds that play crucial roles in treating various mental health conditions.

Latest Patents: Among his latest patents, Ishizumi has created imide derivatives and their pharmaceutical uses, including a compound that may serve as an effective psychotic drug. Another notable invention is the succinimide derivatives, which are designed to be anti-anxiety medications. These compounds are characterized by a structure involving pyridyl or pyrimidinyl groups, making them versatile for therapeutic applications.

Career Highlights: Ishizumi's career spans several years of dedicated research and innovation. He has worked at prominent organizations such as Sumitomo Chemical Company, Limited, and Sumitomo Pharmaceuticals Company Limited, where he played a pivotal role in advancing pharmaceutical science and drug development.

Collaborations: Throughout his career, Kikuo Ishizumi has collaborated with notable coworkers, including Shigeho Inaba and Kazuo Mori. Their combined expertise has contributed to the development of groundbreaking pharmaceutical solutions.

Conclusion: Kikuo Ishizumi's contributions to the field of pharmaceuticals, especially through his innovative patents, have had a lasting impact on mental health treatment. His work exemplifies the importance of research and collaboration in fostering advancements in medical science.

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]