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For the Inventor, By the Inventor

Kawasaki, Japan

Takashi Tsuruoka

This inventor holds 52 USPTO granted patents, primarily in Pharmaceutical Compounds (CPC class 5143). Top assignees: Meiji Seika Kaisha, Ltd., Meiji Seika Kabushiki Kaisha, Maiji Seika Kaisha Ltd.. Active years: 1976-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Tsuruoka. Retrieved from https://idiyas.com/inventor/takashi-tsuruoka

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

USPTO Granted Patents = 52

% Patents Active = 98.1

Average Co-Inventor Count = 7.3

ph-index = 11

Forward Citations = 319(Granted Patents)

Forward Citations (Not Self Cited) = 305(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawasaki, JA (1976 - 1978)
  • Kawasaki, JP (1978 - 1988)
  • Kanagawa, JP (1985 - 1994)
  • Kanagawa-ken, JP (1997 - 1998)
  • Yokohama, JP (1990 - 2003)

Company Filing History:

goldMedal41 out of 382 
 
Meiji Seika Kaisha, Ltd.
 patents
silverMedal7 out of 32 
 
Meiji Seika Kabushiki Kaisha
 patents
bronzeMedal1 out of 2 
 
Maiji Seika Kaisha Ltd.
 patents
4. 1 out of 1 
 
Meiji Seika Kaburhiki Kaisha
 patent
5. 1 out of 1 
 
Meuji Seika Kaisha Ltd.
 patent
6. 1 out of 1 
 
Neiji Seika Kaisha, Ltd.
 patent
7. 1 out of 212 
 
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
 patents
where one patent can have more than one assignee

Years Active: 1976-2003

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Areas of Expertise:
Nitrogen-Containing Compounds
Antibacterial Agents
Cancer Inhibitors
Anti-Ulceratives
Cephalosporin Derivatives
Herbicidal Compositions
Platelet Aggregation Inhibitors
Angiotensin II Antagonism
Pyridine Derivatives
Tricyclic Benzazepine
Azole Derivatives
Antiviral Agents
52 patents (USPTO):Explore Patents
1. 6583144 - Nitrogen-containing heterocyclic compounds and therapeutic agents for hyperlipidemia comprising the same (2003-06-24),
2. 6417362 - Nitrogenous heterocyclic compounds and hyperlipemia remedy containing the same (2002-07-09),
3. 5840895 - Triazole intermediates for tricyclic benzazepine and benzothiazepine (1998-11-24),
4. 5698692 - Compound with platelet aggregation inhibitor activity (1997-12-16),
5. 5686442 - Tricyclic benzazepine and benzothiazepine derivatives (1997-11-11),
6. 5594004 - Compound with platelet aggregation inhibitor activity (1997-01-14),
7. 5399566 - Pyridine derivatives having angiotensin II antagonism (1995-03-21),
8. 5294629 - Benzothiazole and benzimidazole derivatives and antiulcer agent (1994-03-15),
9. 5250545 - Cancer cell metastasis inhibitor methods (1993-10-05),
10. 5200407 - Azole derivatives and anti-ulcerative composition containing same (1993-04-06),
11. 5185347 - Piperidine compounds and antiulcer composition containing the same (1993-02-09),
12. 5141946 - Azole derivatives and anti-ulcerative composition containing same (1992-08-25),
13. 5079255 - Thiazolo [4,5-6] pyridine derivatives and anti-ulcerative composition (1992-01-07),
14. 5028601 - Cephalosporin compounds and antibacterial agents (1991-07-02),
15. 4985445 - Cancer cell metastasis inhibitors and novel compounds (1991-01-15),

Title: The Innovative Journey of Takashi Tsuruoka

Introduction: Takashi Tsuruoka is a prolific inventor hailing from Kawasaki, Japan, known for his significant contributions to the field of pharmaceuticals. With an impressive portfolio of 52 patents, he has made substantial advancements in the development of therapeutic agents.

Latest Patents: Among his latest innovations are patents focused on nitrogen-containing heterocyclic compounds and their application as therapeutic agents for hyperlipidemia. These patents include titles such as "Nitrogen-containing heterocyclic compounds and therapeutic agents for hyperlipidemia comprising the same" and "Nitrogenous heterocyclic compounds and hyperlipemia remedy containing the same". His inventions aim to address critical health issues related to lipid levels in the bloodstream.

Career Highlights: Takashi Tsuruoka has had a remarkable career, working for prominent companies including Meiji Seika Kaisha, Ltd. and Meiji Seika Kabushiki Kaisha. His work at these organizations has been instrumental in developing innovative solutions in the pharmaceutical industry.

Collaborations: Throughout his career, Tsuruoka has collaborated with esteemed professionals such as Shigeharu Inouye and Taro Niida. These collaborations reflect his commitment to advancing research and development within the field.

Conclusion: Takashi Tsuruoka exemplifies the essence of innovation in biotechnology, with a strong focus on improving health outcomes through his inventions. His extensive patent portfolio underscores his role as a key figure in the ongoing pursuit of effective therapeutic solutions.

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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