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For the Inventor, By the Inventor

Yokohama, Japan

Yasuo Hattori

USPTO Granted Patents = 14

Average Co-Inventor Count = 2.6

ph-index = 11

Forward Citations = 429(Granted Patents)


Company Filing History:

goldMedal14 out of 1,297 
 
Asahi Kasei Kogyo Kabushiki Kaisha
 patents

Years Active: 1983-1994

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14 patents (USPTO):Explore Patents
1. 5332784 - Terminal-modified block copolymer and compositions containing the same (1994-07-26),
2. 5234994 - Thermoplastic polymer composition (1993-08-10),
3. 5134199 - Diene block polymer and polymer composition (1992-07-28),
4. 5115035 - Terminal-modified block copolymer and compositions containing the same (1992-05-19),
5. 5096970 - Prepolymerization process for producing a conjugated diene compound (1992-03-17),
6. 5017660 - Selectively, partially hydrogenated polymer and rubber composition and (1991-05-21),
7. 4994508 - Specific hydrogenated block copolymer composition and process for (1991-02-19),
8. 4931376 - Crystalline trans-butadiene polymers (1990-06-05),
9. 4914248 - Diene polymers, process for production, thereof, and rubber compositions (1990-04-03),
10. 4792584 - Adhesive compositions (1988-12-20),
11. 4547560 - Random styrene-butadiene copolymer rubber (1985-10-15),
12. 4446290 - Process for producing conjugated diene polymer (1984-05-01),
13. 4424322 - Process for producing polymers or copolymers of conjugated dienes (1984-01-03),
14. 4413098 - Isoprene-butadiene copolymer rubber having improved processing properties (1983-11-01),

Title: Yasuo Hattori: Innovator in Polymer Chemistry

Introduction

Yasuo Hattori is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of polymer chemistry, holding a total of 14 patents. His work focuses on developing advanced materials with unique properties and applications.

Latest Patents

Among his latest innovations is a terminal-modified block copolymer and compositions containing the same. This invention involves a terminal-modified block copolymer that has an amino group or imido group-containing terminal-treating agent bonded to the polymer terminal. The copolymer is derived from conjugated dienes and vinylaromatic hydrocarbon compounds, utilizing specific polymerization initiators. The resulting compositions exhibit excellent tackiness, adhesiveness, and creep resistance, making them suitable for various applications, including adhesives and electroconductive materials.

Career Highlights

Yasuo Hattori is associated with Asahi Kasei Kogyo Kabushiki Kaisha, a leading company in the chemical industry. His work has significantly advanced the understanding and application of thermoplastic polymer compositions, contributing to the development of innovative materials.

Collaborations

Throughout his career, Hattori has collaborated with notable colleagues, including Toshinori Shiraki and Yuichi Kitagawa. These partnerships have fostered a collaborative environment that enhances the innovation process.

Conclusion

Yasuo Hattori's contributions to polymer chemistry and his impressive portfolio of patents highlight his role as a key innovator in the field. His work continues to influence the development of advanced materials that meet the demands of modern applications.

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