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For the Inventor, By the Inventor

Hiromachi, Japan

Nobuo Soma

USPTO Granted Patents = 16

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 179(Granted Patents)


Location History:

  • Hiro, JA (1976)
  • Tokyo, JA (1977 - 1978)
  • Tokyo, JP (1978 - 1980)
  • Hiromachi, JP (1978 - 1983)

Company Filing History:

goldMedal15 out of 613 
 
Sankyo Company, Limited
 patents
silverMedal7 out of 6,850 
 
Ciba-geigy Corporation
 patents
bronzeMedal1 out of 1,252 
 
Konishiroku Photo Industry Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1983

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16 patents (USPTO):Explore Patents
1. 4413076 - Polyalkylpiperdine side chain stabilizers for synthetic polymer (1983-11-01),
2. 4371644 - Piperidine derivatives and their use as polymer stabilizers (1983-02-01),
3. 4265803 - Polymers containing polyalkylpiperidines and use thereof as stabilizers (1981-05-05),
4. 4237294 - 2,2,6,6-Tetramethylpiperidine derivatives (1980-12-02),
5. 4219465 - Piperidine-spiro-hydantoin derivatives and their use as polymer (1980-08-26),
6. 4191683 - Derivatives of 4-aminopiperidine as stabilizers for polymers (1980-03-04),
7. 4166813 - Polyalkylated 4-aminopiperidine derivatives (1979-09-04),
8. 4162246 - Hydantoin derivatives and their use as polymer stabilizers (1979-07-24),
9. 4141883 - Stabilization of synthetic polymers by penta-or-hexa-substituted (1979-02-27),
10. 4131599 - Stabilization of poly(mono-olefins) (1978-12-26),
11. 4118368 - Synthetic polymer stabilizers (1978-10-03),
12. 4105626 - Derivatives of 4-oxopiperidines and their use as polymer stabilizers (1978-08-08),
13. 4097587 - 1,3,8-Triazaspiro�4.5!decane-2,4-dione polymer stabilizers (1978-06-27),
14. 4075165 - Stabilization of polymers by penta- or hexa-substituted 4-piperidinol (1978-02-21),
15. 4055536 - 4,4'-Bipiperidylidene derivatives and their use as stabilizers (1977-10-25),

Title: Nobuo Soma: Innovator in Polymer Stabilization

Introduction

Nobuo Soma is a prominent inventor based in Hiromachi, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of stabilizers for synthetic polymers. With a total of 16 patents to his name, Soma's work has had a lasting impact on the industry.

Latest Patents

Soma's latest patents include innovations such as polyalkylpiperdine side chain stabilizers for synthetic polymers. These polymers contain polyalkylpiperidines that are laterally linked to the main chain, resulting in improved stabilizing effects against light- and heat-induced deterioration. Additionally, he has developed piperidine derivatives that serve as valuable stabilizers for synthetic polymers, showcasing his expertise in enhancing the durability and performance of polymer compositions.

Career Highlights

Throughout his career, Nobuo Soma has worked with notable companies, including Sankyo Company, Limited and Ciba-Geigy Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in polymer technology.

Collaborations

Soma has collaborated with esteemed colleagues such as Tomoyuki Kurumada and Takao Yoshioka. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Nobuo Soma's contributions to polymer stabilization have established him as a key figure in the field. His innovative patents and collaborations continue to influence the industry, ensuring the longevity and effectiveness of synthetic polymers.

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