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For the Inventor, By the Inventor

Ichihara, Japan

Shin-ichi Kumamoto

This inventor holds 18 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Olefin Polymerization. Top assignee: Sumitomo Chemical Company, Limited. Active years: 2000-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shin-ichi Kumamoto. Retrieved from https://idiyas.com/inventor/shin-ichi-kumamoto

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

USPTO Granted Patents = 18 

% Patents Active = 44.4


Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 27(Granted Patents)


Company Filing History:

goldMedal18 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 2000-2019

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Areas of Expertise:
Hydrogenation Catalyst
Olefin Polymerization
Solid Catalyst Component
Propylene-Ethylene Block Copolymer
Copolymerization Catalyst
Aluminum Compound
Production Process
Polymerization Catalyst
18 patents (USPTO):Explore Patents
1. 10428162 - Hydrogenation catalyst and process for producing olefin polymer (2019-10-01),
2. 8859450 - Solid catalyst component for olefin polymerization (2014-10-14),
3. 7960486 - Process for producing olefin polymer (2011-06-14),
4. 7897705 - Process for producing olefin polymer (2011-03-01),
5. 7879751 - Production process of olefin polymerization catalyst component, of olefin polymerization catalyst, and of olefin polymer (2011-02-01),
6. 7799866 - Method for producing propylene-ethylene block copolymer (2010-09-21),
7. 7732540 - Process for producing olefin copolymerization catalyst and process for producing olefin copolymer (2010-06-08),
8. 7605215 - Process for producing olefin copolymerization catalyst and process for producing olefin copolymer (2009-10-20),
9. 7256151 - Solid catalyst component for α-olefin polymerization, process for producing catalyst therefor, and process for producing α-olefin polymer (2007-08-14),
10. 7109142 - Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer (2006-09-19),
11. 7049263 - Process for producing catalyst for α-olefin polymerization and process for producing α-olefin polymer (2006-05-23),
12. 6903041 - Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer (2005-06-07),
13. 6858685 - Solid catalyst component for olefin polymerization, process for producing the same, process for producing catalyst for olefin polymerization, and process for producing olefin polymer (2005-02-22),
14. 6680360 - Process for producing catalyst for &agr; -olefin polymerization and process for producing &agr; -olefin polymer (2004-01-20),
15. 6538079 - Process for producing catalyst for ethylene polymerization and process for producing ethylene polymer (2003-03-25),

Title: Shin-ichi Kumamoto - Innovator in Olefin Polymerization

Introduction

Shin-ichi Kumamoto, an accomplished inventor based in Ichihara, Japan, has made significant contributions to the field of olefin polymerization. With a total of 18 patents to his name, he has been instrumental in developing innovative catalysts and processes that enhance polymer production.

Latest Patents

Kumamoto's latest inventions include a hydrogenation catalyst and a process for producing olefin polymer. The hydrogenation catalyst is designed to yield higher molecular weight olefin polymers by efficiently controlling hydrogen concentration during the polymerization reaction. The catalyst comprises several essential components:

- Component (A): a titanocene compound,

- Component (B): a silicon compound represented by the formula Si(OR)[1],

- Component (C): an alkyl metal compound, and

- Component (D): a catalyst for olefin polymerization.

Another notable patent is a solid catalyst component for olefin polymerization. This component includes titanium, magnesium, halogen, and hydrocarbyloxy groups, characterized by a specific concentration of titanium atoms in the filtrate.

Career Highlights

Kumamoto is currently employed at Sumitomo Chemical Company, Limited, where he continues to lead innovative projects in chemical manufacturing and materials science. His work not only advances the field but also provides practical applications in various industries, directly impacting the production efficiency and quality of olefin polymers.

Collaborations

Throughout his career, Kumamoto has collaborated with renowned experts such as Makoto Satoh and Noriyuki Satou. These partnerships have fostered a fruitful exchange of ideas and expertise, further enhancing the outcomes of their innovative projects.

Conclusion

Shin-ichi Kumamoto's contributions to olefin polymerization through his innovative patents highlight the vital role of inventors in advancing technology and contributing to industrial growth. His work at Sumitomo Chemical Company, Limited demonstrates the intersection of creativity and science, reinforcing the importance of collaboration in achieving significant technological advancements.

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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