IDiyas

For the Inventor, By the Inventor

Tokyo, Japan

Kazuyoshi Yamamoto

USPTO Granted Patents = 10 

Average Co-Inventor Count = 3.9

ph-index = 4

Forward Citations = 40(Granted Patents)


Location History:

  • Nagaokakyo, JP (1988 - 1989)
  • Himeji, JP (1990 - 1992)
  • Tokyo, JP (1998 - 2019)

Company Filing History:

goldMedal4 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal3 out of 622 
 
Mitsubishi Paper Mills Limited
 patents
bronzeMedal2 out of 775 
 
Nippon Kayaku Kabushiki Kaisha
 patents
4. 1 out of 1,625 
 
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
 patents
5. 1 out of 95 
 
Tokyo University of Science Foundation
 patents
6. 1 out of 488 
 
Mitsubishi Denki K.k.
 patents
where one patent can have more than one assignee

Years Active: 1988-2025

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10 patents (USPTO):Explore Patents
1. 12486371 - Thermally curable resin composition, cured object, resin sheet, prepreg, metal-clad laminate, multilayered printed wiring board, sealing material, fiber-reinforced composite material, adhesive, and semiconductor device (2025-12-02),
2. 10508078 - Compound, photopolymerization initiator comprising said compound, and photosensitive resin composition containing said photopolymerization initiator (2019-12-17),
3. 6083609 - Ink jet recording material (2000-07-04),
4. 5809863 - Swash plate type axial piston pump (1998-09-22),
5. 5803714 - Swash plate type axial piston pump and method of assembling the same (1998-09-08),
6. 5785150 - Swash plate type axial piston pump including lubrication mechanism, and (1998-07-28),
7. 5156129 - Fuel supply device for an internal combustion engine (1992-10-20),
8. 4972815 - Intake air quantity regulating device for an automobile engine (1990-11-27),
9. 4824760 - Lithographic printing plate with benzotriazoles improved in printing (1989-04-25),
10. 4743525 - Lithographic printing plate excellent in printing endurance (1988-05-10),

Title: Kazuyoshi Yamamoto: Innovator in Photopolymerization Technology

Introduction

Kazuyoshi Yamamoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of photopolymerization, holding a total of nine patents. His work focuses on developing novel compounds and materials that enhance the efficiency and effectiveness of photopolymerization processes.

Latest Patents

Among his latest patents is a compound that serves as a photopolymerization initiator. This compound generates a base and radical upon irradiation with an active energy ray. The invention aims to provide a photopolymerization initiator that comprises this novel compound, along with a photosensitive resin composition that exhibits high sensitivity and excellent storage stability. This composition can be formed into a cured article that does not possess metal-corrosive properties.

Career Highlights

Kazuyoshi Yamamoto has worked with notable companies, including Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Paper Mills Limited. His experience in these organizations has allowed him to refine his expertise in photopolymerization and related technologies.

Collaborations

He has collaborated with esteemed colleagues such as Osamu Matsumoto and Tsutomu Tominaga, contributing to advancements in their respective fields.

Conclusion

Kazuyoshi Yamamoto's innovative work in photopolymerization technology has led to significant advancements in the industry. His contributions continue to influence the development of new materials and processes.

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