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For the Inventor, By the Inventor

Oita, Japan

Haruo Yoshida

This inventor holds 11 USPTO granted patents. Top assignees: Showa Denko Kabushiki Kaisha, Showa Denko K.k., Showa Highpolymer Co., Ltd.. Active years: 1979-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruo Yoshida. Retrieved from https://idiyas.com/inventor/haruo-yoshida-2rvc05ke

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

USPTO Granted Patents = 11

% Patents Active = 90.9

Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 111(Granted Patents)


Location History:

  • Yokohama, JP (1979)
  • Oita, JP (1985 - 1993)
  • Machida, JP (2009)

Company Filing History:

goldMedal7 out of 405 
 
Showa Denko Kabushiki Kaisha
 patents
silverMedal2 out of 1,961 
 
Showa Denko K.k.
 patents
bronzeMedal2 out of 68 
 
Showa Highpolymer Co., Ltd.
 patents
4. 1 out of 302 
 
Sumitomo Seika Chemicals Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1979-2009

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11 patents (USPTO):Explore Patents
1. 7514379 - Curable polyvinyl benzyl compound and process for producing the same (2009-04-07),
2. 5270439 - Method of producing a curable composition containing (1993-12-14),
3. 5183917 - 4,4'-bis(methacryloylthio)diphenylsulfide (1993-02-02),
4. 5047576 - Polymerizable vinyl compound having polythioether skeleton (1991-09-10),
5. 4954590 - Preparation of polymer having isoindole structures (1990-09-04),
6. 4833231 - Polymer having isoindole structure (1989-05-23),
7. 4772700 - Spiropiperidinenaphthoxazine compound (1988-09-20),
8. 4769448 - Electrically conductive liquid crystalline substance and polymer (1988-09-06),
9. 4657694 - Electrically conductive liquid crystalline substance and polymer (1987-04-14),
10. 4518756 - Biphenyloxy mono- and dimethacrylate polymerizable compositions (1985-05-21),
11. 4140606 - Process for preparing a polymerizable (meth) acrylate oligomer (1979-02-20),

Title: Haruo Yoshida: Innovator in Curable Compounds

Introduction

Haruo Yoshida is a prominent inventor based in Oita, Japan. He has made significant contributions to the field of curable compounds, holding a total of 11 patents. His work has advanced the understanding and application of polyvinyl benzyl compounds.

Latest Patents

Yoshida's latest patents include a curable polyvinyl benzyl compound and a method for producing a curable composition. The curable polyvinyl benzyl compound is represented by a specific general formula, where R denotes a C organic group, and the compound is synthesized by reacting a fluorene compound with a vinylbenzyl halide in the presence of an alkali. Additionally, his method for producing a curable composition involves a prepolymer with a polythioether skeleton, utilizing 4,4'-bis(methacryloylthio)-diphenylsulfide and a vinyl monomer copolymerizable with it, in the presence of a base catalyst.

Career Highlights

Throughout his career, Haruo Yoshida has worked with notable companies such as Showa Denko and Showa Highpolymer Co., Ltd. His experience in these organizations has allowed him to develop innovative solutions in the field of curable materials.

Collaborations

Yoshida has collaborated with esteemed colleagues, including Hirotaka Tagoshi and Alan J. Heeger. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Haruo Yoshida's contributions to the field of curable compounds highlight his innovative spirit and dedication to advancing material science. His patents and collaborations reflect a commitment to excellence in research and development.

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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