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For the Inventor, By the Inventor

Tokyo, Japan

Sadaharu Hashimoto

This inventor holds 14 USPTO granted patents and 1 published patent application and 11 EPO patents. Top assignees: Zeon Corporation, Nagoya University, National University Corporation Tokai National Higher Education and Research System. Active years: 2007-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadaharu Hashimoto. Retrieved from https://idiyas.com/inventor/sadaharu-hashimoto

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

USPTO Granted Patents = 14 

% Patents Active = 92.9

 

Average Co-Inventor Count = 2.6

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:

goldMedal14 out of 1,293 
 
Zeon Corporation
 patents
silverMedal2 out of 371 
 
Nagoya University
 patents
bronzeMedal1 out of 124 
 
National University Corporation Tokai National Higher Education and Research System
 patents
where one patent can have more than one assignee

Years Active: 2007-2023

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14 patents (USPTO):Explore Patents
1. 11787891 - Modified block copolymer composition (2023-10-17),
2. 11492452 - Multi-block copolymer composition obtained by modification treatment, and film (2022-11-08),
3. 11466150 - Block copolymer composition obtained by modification treatment, method for producing same, modified block copolymer composition used for same, and method for producing said modified block copolymer composition (2022-10-11),
4. 11459417 - Block copolymer composition including ionic group, and film (2022-10-04),
5. 11440987 - Tetra-block copolymer, and polymer composition, and hot-melt sticky adhesive composition using these (2022-09-13),
6. 10815401 - Block copolymer composition and hot melt adhesive composition (2020-10-27),
7. 10689552 - Block copolymer composition and adhesive composition (2020-06-23),
8. 10508161 - Modified hydrocarbon resin, method for producing the resin, and hot-melt adhesive composition (2019-12-17),
9. 10457764 - Modified hydrocarbon resin and hot melt adhesive composition (2019-10-29),
10. 10174230 - Block copolymer composition, adhesive composition, and adhesive sheet (2019-01-08),
11. 8791196 - Adhesive composition for labels (2014-07-29),
12. 8722800 - Composition for stretchable film (2014-05-13),
13. 8501869 - Block copolymer composition and hot-melt adhesive composition (2013-08-06),
14. 7211627 - Elastomer composition and pressure-sensitive adhesive compositions (2007-05-01),

Title: Sadaharu Hashimoto: Innovator in Polymer Chemistry

Introduction

Sadaharu Hashimoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polymer chemistry, holding a total of 14 patents. His innovative work focuses on modified block copolymers and their applications in various industries.

Latest Patents

Among his latest patents, Hashimoto has developed a modified block copolymer composition. This composition includes a modified block copolymer containing at least one aromatic vinyl polymer block and at least one conjugated diene polymer block. It features at least one modified terminal that is altered with a compound containing a silicon atom and an acrylic or methacrylic group. Another notable patent is for a multi-block copolymer composition obtained through modification treatment. This invention aims to provide a multi-block copolymer composition that exhibits good elasticity and excellent stress relaxation properties, along with a small tension set.

Career Highlights

Throughout his career, Sadaharu Hashimoto has worked with notable organizations such as Zeon Corporation and Nagoya University. His expertise in polymer chemistry has allowed him to make substantial advancements in the field.

Collaborations

Hashimoto has collaborated with esteemed colleagues, including Atsushi Nozawa and Ryoji Kameyama. These partnerships have contributed to the success of his innovative projects.

Conclusion

Sadaharu Hashimoto's contributions to polymer chemistry through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in material science and engineering.

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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