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For the Inventor, By the Inventor

Tokushima, Japan

Yoshikatsu Hirai

This inventor holds 17 USPTO granted patents. Top assignee: Otsuka Pharmaceutical Company, Limited. Active years: 1987-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikatsu Hirai. Retrieved from https://idiyas.com/inventor/yoshikatsu-hirai

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

USPTO Granted Patents = 17

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 5

Forward Citations = 102(Granted Patents)


Location History:

  • Tokushima, JP (1987 - 1994)
  • Takushima, JP (1994)
  • Suita, JP (1998)
  • Itano-gun, JP (1998)
  • Tokushima-ken, JP (1996 - 2000)

Company Filing History:

goldMedal17 out of 846 
 
Otsuka Pharmaceutical Company, Limited
 patents

Years Active: 1987-2000

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17 patents (USPTO):Explore Patents
1. 6107465 - IL-1.beta. and derivatives thereof and drugs (2000-08-22),
2. 5849282 - Method of treating colon, renal, and lung carcinomas with (1998-12-15),
3. 5847098 - DNA encoding interleukin IL-1.beta. mutant (1998-12-08),
4. 5837230 - Methods of treating allergies with M-CSF (1998-11-17),
5. 5756675 - IL-1.alpha. derivatives (1998-05-26),
6. 5702698 - Methods of use of IL-1.alpha. (1997-12-30),
7. 5650297 - DNA encoding human colony-stimulating factors (1997-07-22),
8. 5543140 - Method and use of IL-1.alpha. (1996-08-06),
9. 5371204 - Gene that encodes for polypeptides of IL-1.alpha. (1994-12-06),
10. 5348858 - Monoclonal antibody specific for human interleukin-1.beta. and method (1994-09-20),
11. 5342615 - Method for treating arthritis or inflammation with Il-1.alpha. or (1994-08-30),
12. 5342614 - Method of treating arthritus or inflammation with IL-1.beta. or (1994-08-30),
13. 5217714 - Method for stimulating the secretion of ACTH by administration of IL-1B (1993-06-08),
14. 5120534 - IL-1.alpha. derivatives and medicament for treating thrombocytopenia (1992-06-09),
15. 5008374 - IL-1.alpha. derivatives and drugs (1991-04-16),

Title: The Innovative Contributions of Yoshikatsu Hirai

Introduction

Yoshikatsu Hirai is a prominent inventor based in Tokushima, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of innovative treatments for various cancers. With a total of 17 patents to his name, Hirai's work has had a profound impact on medical science.

Latest Patents

Hirai's latest patents include groundbreaking inventions such as a homogeneous interleukin 1.beta. (IL-1.beta.) and its derivatives. This invention encompasses a gene coding for the derivative, a medical composition that includes the derivative as a pharmaceutically effective component, and a medicinal use of homogeneous IL-1.beta. and its derivative. Additionally, he has developed a method for treating colon, renal, and lung carcinomas using gamma-interferon and interleukin-1 as active ingredients, providing a new anti-tumor agent and treatment method.

Career Highlights

Hirai is currently associated with Otsuka Pharmaceutical Company, Limited, where he continues to innovate and contribute to the pharmaceutical industry. His extensive research and development efforts have positioned him as a key figure in the advancement of cancer treatment methodologies.

Collaborations

Hirai has collaborated with notable colleagues such as Satoru Nakai and Kazuyoshi Kawai, further enhancing the scope and impact of his research.

Conclusion

Yoshikatsu Hirai's contributions to the field of pharmaceuticals, particularly in cancer treatment, highlight his innovative spirit and dedication to improving medical outcomes. His work continues to inspire advancements in the industry.

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]
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