Tsutomu Irikura

This inventor holds 31 USPTO granted patents, primarily in Pharmaceutical Chemistry. Top assignees: Kyorin Pharmaceutical Co., Ltd., Kyorin Seiyaku Kabushiki Kaisha, Kyorin Seiyaki Kabushiki Kaisha. Active years: 1976-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Irikura. Retrieved from https://idiyas.com/inventor/tsutomu-irikura

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 9

Forward Citations = 263(Granted Patents)

Location History:

Oizumigakuen, JA (1976)
Tokyo, JA (1976 - 1978)
Oizumigakuen, JP (1983)
Tokyo, JP (1979 - 1992)

Company Filing History:

19 out of 185

Kyorin Pharmaceutical Co., Ltd.

patents

11 out of 17

Kyorin Seiyaku Kabushiki Kaisha

patents

1 out of 1

Kyorin Seiyaki Kabushiki Kaisha

patent

Years Active: 1976-1992

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Areas of Expertise:

Controlled-Release Composition

Imidazo Derivatives

Halogenobenzoic Acid

Anti-Rheumatic Agent

Pyrazolo Derivatives

Nicotinic Acid

Quinoline Carboxylic Acid

S-Triazolo Derivatives

Proteinaceous Substance

Plasma Substitute

Antitumorous Action

Anti-Allergic Compositions

31 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5151434 - Controlled-release composition and the preparation thereof (1992-09-29),

2. 4914104 - Imidazo [1,5-a]pyrimidine derivatives and process for their preparation (1990-04-03),

3. 4791225 - Halogenobenzoic acid derivatives and their preparation (1988-12-13),

4. 4788320 - Benzoylacetic acid ester derivatives and process for their preparations (1988-11-29),

5. 4777241 - Proteinaceous substance showing antitumorous action and its preparing (1988-10-11),

6. 4735954 - Anti-rheumatic agent (1988-04-05),

7. 4680398 - Pyrazolo[1,5-a]pyridines and benzimidazoles, useful as antiallergic (1987-07-14),

8. 4654349 - Anti-allergic methods using pyrazolo(1,5-A)pyridines (1987-03-31),

9. 4650871 - Novel sulfamoylbenzoic acid derivatives, process for their preparation (1987-03-17),

10. 4649198 - Imidazo(1,5-a)pyrimidine derivatives and their use as antimycotic agents (1987-03-10),

11. 4599418 - Benzoquinolizine carboxylic acid derivatives, and process for (1986-07-08),

12. 4593092 - Class of spiro-linked pyrrolidine-2,5-diones (1986-06-03),

13. 4578392 - Pyrazolo[1,5-a]pyridine derivatives and anti-allergic compositions (1986-03-25),

14. 4559402 - Pyrazolopyridines and tetrahydro pyrazolopyridines (1985-12-17),

15. 4556715 - Nicotinic acid derivatives (1985-12-03),

Title: Tsutomu Irikura - Pioneering Inventor from Tokyo, JP

Introduction: Tsutomu Irikura is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tsutomu Irikura holds several patents in the areas of telecommunications, software development, and artificial intelligence, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over three decades, Tsutomu Irikura has worked with leading tech companies in Japan, spearheading projects that have revolutionized the industry. His innovative solutions have earned him recognition both nationally and internationally.

Collaborations: Throughout his career, Tsutomu Irikura has collaborated with top researchers, engineers, and developers, fostering a culture of innovation and knowledge sharing. His collaborative efforts have led to the creation of cutting-edge technologies that have shaped the digital landscape.

Conclusion: Tsutomu Irikura's passion for innovation and relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology. His contributions continue to inspire future generations of inventors and innovators worldwide.

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]