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For the Inventor, By the Inventor

Moriyama, Japan

Takashi Yamamoto

This inventor holds 16 USPTO granted patents, primarily in Dental Materials. Top assignees: Sun Medical Co., Ltd., Mitsui Petrochemical Industries, Ltd., Asahi Kogaku Kogyo Kabushiki Kaisha. Active years: 1991-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Yamamoto. Retrieved from https://idiyas.com/inventor/takashi-yamamoto-t7jvbmyi

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 87.5

Average Co-Inventor Count = 4.3

ph-index = 8

Forward Citations = 454(Granted Patents)


Location History:

  • Wagi, JP (1991)
  • Kuga, JP (1993)
  • Yamaguchi, JP (1993)
  • Moriyama, JP (1996 - 2023)

Company Filing History:

goldMedal13 out of 37 
 
Sun Medical Co., Ltd.
 patents
silverMedal3 out of 1,008 
 
Mitsui Petrochemical Industries, Ltd.
 patents
bronzeMedal1 out of 3,132 
 
Asahi Kogaku Kogyo Kabushiki Kaisha
 patents
4. 1 out of 1,820 
 
Mitsui Chemicals, Inc.
 patents
5. 4 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 1991-2023

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Areas of Expertise:
Dental Adhesive
Curable Composition
Polymerizable Monomer
Dentin Hypersensitivity
Primer Composition
Adhesive Kit
Bone Cement
Acrylic Copolymer
Polymerization Initiator
Dental Treatment
Dental Composition
Composition Kit
16 patents (USPTO):Explore Patents
1. 11844847 - Sulfur-containing polymerizable monomer and use thereof (2023-12-19),
2. 11130864 - Polymerizable composition and kit, and polymerization initiator (2021-09-28),
3. 8362105 - Dental curable composition and kit for such dental curable composition (2013-01-29),
4. 8297975 - Reaction-curable adhesive composition and dental adhesive kit (2012-10-30),
5. 6288138 - Dental adhesive kit (2001-09-11),
6. 6071983 - Primer composition and curable composition (2000-06-06),
7. 5879663 - Dental composition for dentin hypersensitivity (1999-03-09),
8. 5834532 - Primer composition and curable composition (1998-11-10),
9. 5766328 - Dental composition for relieving dentin hypersensitivity (1998-06-16),
10. 5700875 - Adhesive composition for dental treatment (1997-12-23),
11. 5587406 - Primer composition and curable composition (1996-12-24),
12. 5556897 - Primer solution compositions and method of forming adhesive layer on (1996-09-17),
13. 5530038 - Primer composition and curable composition (1996-06-25),
14. 5264215 - Bone cement composition, cured product thereof, implant material and (1993-11-23),
15. 5243006 - Acrylic copolymer (1993-09-07),

Title: Takashi Yamamoto: Innovator in Polymer Chemistry

Introduction

Takashi Yamamoto is a prominent inventor based in Moriyama, Japan. He has made significant contributions to the field of polymer chemistry, holding a total of 16 patents. His work focuses on developing innovative materials and compositions that enhance the performance and stability of polymers.

Latest Patents

Among his latest patents is a sulfur-containing polymerizable monomer, which is represented by a specific chemical formula. This invention aims to improve the long-term storage stability of polymerizable compositions that include an organoborane and a polymerizable monomer. The composition consists of an organoborane, an acidic group-free polymerizable monomer, and a stabilizer for the organoborane. Notably, the composition demonstrates a viscosity ratio after standing at elevated temperatures, indicating its effectiveness in maintaining stability.

Career Highlights

Throughout his career, Takashi Yamamoto has worked with various companies, including Sun Medical Co., Ltd. His expertise in polymer chemistry has led to advancements in the development of new materials that are essential in various applications.

Collaborations

Takashi has collaborated with notable coworkers such as Masami Arata and Harumi Tanaka. Their combined efforts have contributed to the success of several innovative projects in the field of polymer science.

Conclusion

Takashi Yamamoto's contributions to polymer chemistry through his patents and collaborations highlight his role as a leading inventor in the industry. 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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