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For the Inventor, By the Inventor

Honjo, Japan

Takeo Kanai

This inventor holds 6 USPTO granted patents. Top assignee: Eisai Company, Limited. Active years: 1976-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeo Kanai. Retrieved from https://idiyas.com/inventor/takeo-kanai-4p8rhmkg

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

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 36(Granted Patents)


Location History:

  • Honjou, JA (1976)
  • Honjou, JP (1980)
  • Honjo, JP (1981 - 1982)
  • Saitama, JP (1984)
  • Chiba, JP (1988)

Company Filing History:

goldMedal6 out of 677 
 
Eisai Company, Limited
 patents

Years Active: 1976-1988

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6 patents (USPTO):Explore Patents
1. 4721788 - 4-cyanopiperidine derivatives (1988-01-26),
2. 4433142 - Process for the preparation of 7-(2-amino-2-phenylacetamido) cephem (1984-02-21),
3. 4331606 - N-(Substituted chromone-3-carbonyl)-phenylglycine derivatives (1982-05-25),
4. 4285941 - Cephalosporin compounds and antibacterial drugs containing the same (1981-08-25),
5. 4181803 - Propiophenone derivatives and preparation thereof (1980-01-01),
6. 3995047 - Propiophenone derivatives in the treatment of pathological muscular (1976-11-30),

Title: The Innovations of Takeo Kanai

Introduction

Takeo Kanai is a prominent inventor based in Honjo, Japan. He has made significant contributions to the field of pharmaceuticals, holding a total of 6 patents. His work focuses on the development of novel compounds that have potential applications in medicine.

Latest Patents

Among his latest patents, Kanai has developed a novel 4-cyanopiperidine derivative. This compound is represented by a specific general formula and is prepared through a reaction involving N-(2-hydroxyethyl)-4-carbamoylpiperidine or its acid addition salt. Another notable patent is for an improved process for the preparation of 7-(2-amino-2-phenylacetamido) cephem derivatives. This process is not only simple and easy to carry out but also yields high-quality crystalline products that serve as intermediates for synthesizing antibacterial agents.

Career Highlights

Kanai is currently associated with Eisai Company, Limited, where he continues to innovate in the pharmaceutical sector. His work has been instrumental in advancing the development of new therapeutic agents.

Collaborations

Throughout his career, Kanai has collaborated with notable colleagues such as Eiichi Morita and Seiichiro Nomoto. These collaborations have further enriched his research and development efforts.

Conclusion

Takeo Kanai's contributions to the field of pharmaceuticals through his innovative patents highlight his role as a key inventor in the industry. His work continues to pave the way for advancements in medical treatments.

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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