Takao Nishi

This inventor holds 25 USPTO granted patents, primarily in Carbostyril Derivatives. Top assignees: Otsuka Pharmaceutical Company, Limited, D. Western Therapeutics Institute, Inc.. Active years: 1981-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Nishi. Retrieved from https://idiyas.com/inventor/takao-nishi

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

USPTO Granted Patents = 25

% Patents Active = 92.0

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 144(Granted Patents)

Location History:

Tokyo, JP (1993 - 1995)
Tokushima, JP (1981 - 2008)
Itano-gun, JP (1998 - 2010)

Company Filing History:

24 out of 846

Otsuka Pharmaceutical Company, Limited

patents

1 out of 8

D. Western Therapeutics Institute, Inc.

patents

Years Active: 1981-2010

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Areas of Expertise:

Carbostyril Derivatives

Fluorinated Benzoic Acids

Benzimidazole Derivatives

Fluorenone Derivatives

Cyclic Amide Derivatives

1,3,4-Oxadiazoles

Benzylamine Derivatives

Tetrazole Derivatives

Pharmaceutical Compositions

Platelet Aggregation Inhibitory Agent

Anti-Ulcer Composition

Heterocyclic Compounds

25 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7825251 - Process for producing carbostyril derivatives (2010-11-02),

2. 7399864 - Process for producing carbostyril derivatives (2008-07-15),

3. 6630590 - Process for producing carbostyril derivatives (2003-10-07),

4. 6333431 - Processes for the preparation of fluorinated benzoic acids (2001-12-25),

5. 6143763 - Carbostyril derivatives (2000-11-07),

6. 6133264 - Carbostyril derivatives for inhibiting skin erythema and/or skin (2000-10-17),

7. 5998437 - Benzimidazole derivatives (1999-12-07),

8. 5942641 - Fluorenone derivatives, process for preparing the same and central or (1999-08-24),

9. 5786367 - Cyclic amide derivatives (1998-07-28),

10. 5670526 - 1,3,4-oxadiazoles (1997-09-23),

11. 5658926 - Carbostyril derivative and platelets aggregation inhibitory agent (1997-08-19),

12. 5550292 - Benzylamine derivatives (1996-08-27),

13. 5541198 - Carbostyril derivatives (1996-07-30),

14. 5506239 - Carbostyril derivative and platelets aggregation inhibitory agent (1996-04-09),

15. 5434164 - Carbostyril derivatives and salts thereof and pharmaceutical (1995-07-18),

Title: Innovative Contributions of Takao Nishi in Pharmaceutical Patents

Introduction

Takao Nishi, based in Tokushima, Japan, is an accomplished inventor with an impressive portfolio of 25 patents. His work primarily focuses on the development of pharmaceutical compounds, particularly those beneficial in treating various medical conditions.

Latest Patents

Among his recent innovations are his patents related to the process for producing carbostyril derivatives. This invention outlines a high-yield, high-purity method for creating carbostyril derivatives (I), which are known for their therapeutic properties, including acting as antithrombotic agents, improving cerebral circulation, and serving as anti-inflammatory and antiulcer agents. The process involves the reaction of a carbostyril derivative (II) with a tetrazole derivative (III) in the presence of a phase transfer catalyst, highlighting Nishi's ability to combine chemistry with practical medical applications.

Career Highlights

Takao Nishi’s career includes valuable contributions to significant companies in the pharmaceutical industry. He has worked at Otsuka Pharmaceutical Company, Limited, and D. Western Therapeutics Institute, where he developed his skills and knowledge in the field of drug development and patenting, paving the way for his innovative contributions to pharmaceutical science.

Collaborations

Throughout his career, Nishi has collaborated with esteemed colleagues, including Kazuyuki Nakagawa and Yasuo Koga. These collaborations have likely enhanced the scope and impact of his research and inventions, fostering a rich environment for innovation in the pharmaceutical industry.

Conclusion

With a robust patent portfolio and a commitment to advancing medical science, Takao Nishi exemplifies the impactful work of inventors in the pharmaceutical sector. His innovative approaches to producing essential medical compounds have the potential to contribute significantly to healthcare advancements, making him a noteworthy figure in the world of patents and 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]