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For the Inventor, By the Inventor

Tokyo, Japan

Kouji Masaki

This inventor holds 5 USPTO granted patents and 1 published patent application and 5 EPO patents. Top assignees: Bridgestone Corporation, Jsr Corporation. Active years: 2011-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouji Masaki. Retrieved from https://idiyas.com/inventor/kouji-masaki

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

USPTO Granted Patents = 5 

% Patents Active = 60.0

 

Average Co-Inventor Count = 3.2

ph-index = 1

Forward Citations = 23(Granted Patents)


Location History:

  • Higashimurayama, JP (2011)
  • Tokyo, JP (2012 - 2017)

Company Filing History:

goldMedal5 out of 5,193 
 
Bridgestone Corporation
 patents
silverMedal1 out of 1,078 
 
Jsr Corporation
 patents
where one patent can have more than one assignee

Years Active: 2011-2017

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5 patents (USPTO):Explore Patents
1. 9623705 - Method for producing modified conjugated diene polymer/copolymer, modified conjugated diene polymer/copolymer, and rubber composition and tire using the same (2017-04-18),
2. 9056925 - Process for production of modified conjugated diene polymers, modified conjugated diene polymers produced by the process, rubber compositions, and tires (2015-06-16),
3. 8299184 - Rubber composition for tire sidewall and tire (2012-10-30),
4. 8030406 - Rubber composition and pneumatic tire using the same (2011-10-04),
5. 7868081 - Rubber composition and tire using same (2011-01-11),

Title: Innovations of Kouji Masaki in Polymer Technology

Introduction

Kouji Masaki is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of polymer technology. With a total of five patents to his name, Masaki has focused on developing advanced methods for producing modified conjugated diene polymers and copolymers.

Latest Patents

Masaki's latest patents include a method for producing modified conjugated diene polymer/copolymer, a modified conjugated diene polymer/copolymer, and a rubber composition and tire using the same. His innovative method involves a modification reaction step that includes causing an organic silane compound to react with a conjugated diene (co)polymer. This process enhances the properties of the polymer, making it suitable for various applications, including tire manufacturing.

Career Highlights

Throughout his career, Kouji Masaki has worked with leading companies in the industry, including Bridgestone Corporation and JSR Corporation. His expertise in polymer science has allowed him to make substantial advancements in the production and application of modified diene polymers.

Collaborations

Masaki has collaborated with notable professionals in his field, including Noriko Mori and Ken Tanaka. These partnerships have contributed to the development of innovative solutions in polymer technology.

Conclusion

Kouji Masaki's work in polymer technology exemplifies the impact of innovation in the field. His patents and collaborations continue to influence the industry, paving the way for future advancements in material science.

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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