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For the Inventor, By the Inventor

Tokyo, Japan

Isao Hayakawa

This inventor holds 27 USPTO granted patents and 1 published patent application, primarily in Pyridine Derivatives. Top assignees: Daiichi Seiyaku Co., Ltd., Daiichi Pharmaceutical Co., Ltd., Daiichi Sankyo Company, Limited. Active years: 1981-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Hayakawa. Retrieved from https://idiyas.com/inventor/isao-hayakawa

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

USPTO Granted Patents = 27 

% Patents Active = 81.5

Average Co-Inventor Count = 2.8

ph-index = 9

Forward Citations = 267(Granted Patents)


Location History:

  • Minamifunabori, JP (1981)
  • Chiba, JP (1992 - 1996)
  • Tokyo, JP (1983 - 2011)
  • Edogawa-ku, JP (2011 - 2013)

Company Filing History:

goldMedal12 out of 70 
 
Daiichi Seiyaku Co., Ltd.
 patents
silverMedal11 out of 200 
 
Daiichi Pharmaceutical Co., Ltd.
 patents
bronzeMedal3 out of 462 
 
Daiichi Sankyo Company, Limited
 patents
4. 1 out of 2,576 
 
Ebara Corporation
 patents
5. 1 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
where one patent can have more than one assignee

Years Active: 1981-2013

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Areas of Expertise:
Pyrrolidine Derivative
Polishing Apparatus
Dehalogeno-Compounds
Optically Active Pyridonecarboxylic Acid
Quinolonecarboxylic Acid
Cycloalkyl-Substituted
Spiro Compound
Antibacterial Agents
Benzoxazine Derivatives
Furonaphthyridine Compounds
Intermediates
Quinoline-Carboxylic Acid
27 patents (USPTO):Explore Patents
1. 8455482 - Substituted pyrrolidine derivative (2013-06-04),
2. 8078306 - Polishing apparatus and polishing method (2011-12-13),
3. 7977327 - Substituted pyrrolidine derivative (2011-07-12),
4. 7902226 - Dehalogeno-compounds (2011-03-08),
5. RE41149 - Optically active pyridonecarboxylic acid derivatives (2010-02-22),
6. 6900225 - Quinolonecarboxylic acid derivative (2005-05-31),
7. 6573260 - Cycloalkyl-substituted aminomethylpyrrolidine derivatives (2003-06-03),
8. 6031102 - Optically active pyridonecarboxylic acid derivatives (2000-02-29),
9. 5767127 - Optically active pyridonecarboxylic acid derivatives (1998-06-16),
10. 5696132 - Pyridonecarboxylic acid derivatives (1997-12-09),
11. 5587386 - Optically active pyridonecarboxylic acid derivatives (1996-12-24),
12. 5508428 - Spiro compound (1996-04-16),
13. 5476950 - Intermediates for pyridonecarboxylic acid derivatives (1995-12-19),
14. 5463053 - Optically active pyridobenzoxazine derivatives (1995-10-31),
15. 5416222 - 3-pyrrolidine methanamines wherein the alpha-carbon is substituted by 1 (1995-05-16),

Title: The Innovative Mind of Isao Hayakawa

Introduction: Isao Hayakawa, a pioneering inventor hailing from Tokyo, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hayakawa's recent patents showcase his commitment to pushing the boundaries of technological advancement, with a focus on improving efficiency and functionality in various industries.

Career Highlights: Throughout his illustrious career, Isao Hayakawa has been recognized for his inventive spirit and problem-solving skills. His inventions have revolutionized the way we approach everyday tasks and have set new standards for excellence in the field of technology.

Collaborations: Hayakawa's collaborative efforts with leading industry experts and research institutions have been instrumental in bringing his innovative ideas to life. By working closely with like-minded professionals, he has been able to leverage collective expertise to drive progress and innovation.

Conclusion: Isao Hayakawa's relentless pursuit of innovation and his passion for creating solutions to complex challenges have solidified his reputation as a visionary inventor. His impact on the world of technology is profound, and his legacy will continue to inspire future generations of inventors.

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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