Takao Takaya

This inventor holds 149 USPTO granted patents, primarily in Cephem Compounds (CPC class 424246). Top assignee: Fujisawa Pharmaceutical Company, Ltd.. Active years: 1977-1997.

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

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

USPTO Granted Patents = 149

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 22

Forward Citations = 1,732(Granted Patents)

Forward Citations (Not Self Cited) = 1,594(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Sakai, JA (1977)
Sakai, JP (1979 - 1992)
Hyogo, JP (1992)
Kawanishi, JP (1980 - 1997)

Company Filing History:

149 out of 940

Fujisawa Pharmaceutical Company, Ltd.

patents

Years Active: 1977-1997

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Areas of Expertise:

Cephem Compounds

Cephalosporin Derivatives

Pharmaceutical Composition

N-containing Heterocycles

Crystalline Intermediates

Pyrimidine Derivatives

Thiazole Derivatives

Morpholine Compounds

Diphenylpyridine

Cardiotonic Agents

Acid Derivatives

Syn-isomers

149 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5663163 - Cephem compounds and processes for preparation thereof (1997-09-02),

2. 5594132 - 7-acylamino-3-substituted cephalosporanic acid derivatives (1997-01-14),

3. 5252731 - Cephalosporin intermediates (1993-10-12),

4. 5210080 - Cephem compounds (1993-05-11),

5. 5194432 - Cephem compounds (1993-03-16),

6. 5162520 - Intermediates for cephem compounds (1992-11-10),

7. 5110921 - 7-acylamino-3-vinylcephalosporanic acid derivatives (1992-05-05),

8. 5108997 - Cephem compounds (1992-04-28),

9. 5079369 - Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and (1992-01-07),

10. 5047411 - Benzazole compounds and pharmaceutical composition comprising the same (1991-09-10),

11. 5026695 - 7-acylamino-3-substituted cephalosporanic acid derivatives (1991-06-25),

12. 4990507 - N-containing heterocyclic compounds, and composition comprising the same (1991-02-05),

13. 4985555 - Cephem compounds (1991-01-15),

14. 4973699 - Cephem compounds and processes for preparation thereof (1990-11-27),

15. 4960889 - 7-acylamino-3-vinylcephalosporanic acid derivatives and processes for (1990-10-02),

Title: Takao Takaya: Innovating Pharmaceuticals with Cephem Compounds

Introduction:

In the vast realm of pharmaceutical innovation, certain individuals shine for their remarkable contributions. Meet Takao Takaya, a renowned inventor hailing from Kawanishi, Japan. With an impressive portfolio of 149 patented inventions, Takaya has made significant breakthroughs in the development of cephem compounds and their associated pharmaceutical applications. Let's explore his latest patents, career highlights, and notable collaborations.

Latest Patents:

Among Takaya's recent patents, the focus lies on cephem compounds and their preparation methods. In one invention, titled "Cephem Compounds and Processes for Preparation Thereof," Takaya presents novel cephem compounds containing a thiadiazine ring connected to the cephem through an iminoacetamido chain, and a pyarzolium ring connected through a methylene chain. These compounds demonstrate anti-bacterial properties, making them potential candidates for pharmaceutical compositions aimed at combating infectious diseases.

Another notable patent, "7-Acylamino-3-Substituted Cephalosporanic Acid Derivatives," introduces a compound with a specific chemical formula. This derivative, in which R.sup.2 represents lower alkoxymethyl, lower alkylthiomethyl, or lower alkenylthiomethyl, has potential applications in the pharmaceutical industry.

Career Highlights:

Takaya's career has been centered around his work at Fujisawa Pharmaceutical Company, Ltd., a leading player in the pharmaceutical sector. Serving as an inventor and researcher, he has contributed significantly to the company's portfolio growth. His dedication to developing innovative compounds and processes has earned him recognition and respect within the industry.

Collaborations:

Collaboration plays a vital role in driving innovation, and Takaya has had the opportunity to work with notable individuals during his career. Among his coworkers, Hisashi Takasugi and Takashi Masugi deserve special mention. Their combined expertise and shared passion for pharmaceutical advancements have resulted in fruitful collaborations, contributing to the success of their research projects and patent applications.

Conclusion:

Takao Takaya's relentless pursuit of discoveries in the field of pharmaceuticals has yielded impressive results, evident through his numerous patented inventions. With a focus on cephem compounds and their applications, Takaya has demonstrated his ability to contribute meaningfully to the development of new drugs and treatment options. His career at Fujisawa Pharmaceutical Company, Ltd. has been marked by continuous innovation and fruitful collaborations, further solidifying his position as a respected figure in the field. As we eagerly await Takaya's future contributions, his dedication and expertise continue to shape the landscape of pharmaceutical innovation.

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]