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For the Inventor, By the Inventor

Tokyo, Japan

Tomoyuki Kurumada

This inventor holds 36 USPTO granted patents, primarily in Polymer Stabilization. Top assignees: Sankyo Company, Limited, Ciba-Geigy Corporation, Monsanto Kasei Company. Active years: 1976-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoyuki Kurumada. Retrieved from https://idiyas.com/inventor/tomoyuki-kurumada

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

USPTO Granted Patents = 36

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 12

Forward Citations = 529(Granted Patents)


Location History:

  • Hiro, JA (1976)
  • Hiromachi, JA (1976)
  • Tokyo, JA (1976 - 1978)
  • Hiromachi, JP (1978 - 1986)
  • Tokyo, JP (1978 - 1998)

Company Filing History:

goldMedal35 out of 613 
 
Sankyo Company, Limited
 patents
silverMedal7 out of 6,858 
 
Ciba-Geigy Corporation
 patents
bronzeMedal1 out of 9 
 
Monsanto Kasei Company
 patents
where one patent can have more than one assignee

Years Active: 1976-1998

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Areas of Expertise:
Piperidine Derivatives
Polymer Stabilizers
Synthetic Resins
Phenylalkanoic Acid Esters
Thiazolidine Derivatives
Triazine Derivatives
Hydantoin Derivatives
4-Aminopiperidine
4-Oxopiperidines
Penta-Substituted Compounds
Hexa-Substituted Compounds
Polyalkylpiperdine
36 patents (USPTO):Explore Patents
1. 5739377 - Phenylalkanoic acid esters and their use as antioxidants (1998-04-14),
2. 5096948 - Resistant resin compositions (1992-03-17),
3. 4572912 - Thiazolidine derivatives, their preparation and compositions containing (1986-02-25),
4. 4533688 - Tris(piperidylaminotriazylamino) compounds, their preparation and their (1985-08-06),
5. 4413076 - Polyalkylpiperdine side chain stabilizers for synthetic polymer (1983-11-01),
6. 4371644 - Piperidine derivatives and their use as polymer stabilizers (1983-02-01),
7. 4321374 - Triazine derivatives (1982-03-23),
8. 4265803 - Polymers containing polyalkylpiperidines and use thereof as stabilizers (1981-05-05),
9. 4241208 - Piperidine derivatives (1980-12-23),
10. 4237294 - 2,2,6,6-Tetramethylpiperidine derivatives (1980-12-02),
11. 4219465 - Piperidine-spiro-hydantoin derivatives and their use as polymer (1980-08-26),
12. 4212974 - Piperidine derivatives (1980-07-15),
13. 4191683 - Derivatives of 4-aminopiperidine as stabilizers for polymers (1980-03-04),
14. 4166813 - Polyalkylated 4-aminopiperidine derivatives (1979-09-04),
15. 4162246 - Hydantoin derivatives and their use as polymer stabilizers (1979-07-24),

Title: Innovations and Contributions of Tomoyuki Kurumada

Introduction

Tomoyuki Kurumada, located in Tokyo, Japan, is a notable inventor with an impressive portfolio of 36 patents. His work has significantly impacted the fields of chemistry and materials science, positioning him as a prominent figure among contemporary inventors.

Latest Patents

Among his latest innovations, Kurumada has developed patents related to "Phenylalkanoic acid esters and their use as antioxidants," which focuses on compounds that exhibit antioxidant properties. Additionally, he has created formulations for "Resistant resin compositions" designed to provide weather resistance and enhance longevity through the use of polymeric substances.

Career Highlights

Throughout his career, Kurumada has been associated with esteemed companies, most notably Sankyo Company, Limited and Ciba-Geigy Corporation. His contributions in these organizations highlight his commitment to advancing scientific knowledge and practical applications in various industries.

Collaborations

Tomoyuki Kurumada has collaborated with several distinguished colleagues, including Takao Yoshioka and Syoji Morimura. These partnerships have enriched his research and further advanced the innovations he has brought to life.

Conclusion

Through his innovative spirit and dedication to research, Tomoyuki Kurumada has made significant contributions to the realm of inventions. His extensive patent portfolio not only underscores his expertise but also showcases his commitment to improving various technological and industrial processes.

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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