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For the Inventor, By the Inventor

Niihama, Japan

Masahiro Yuyama

USPTO Granted Patents = 14

Average Co-Inventor Count = 3.7

ph-index = 7

Forward Citations = 113(Granted Patents)


Location History:

  • Ehime, JP (1989)
  • Niihama, JP (1981 - 1990)

Company Filing History:

goldMedal14 out of 6,896 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1981-1990

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14 patents (USPTO):Explore Patents
1. 4978702 - Coating composition (1990-12-18),
2. 4965321 - Thermoplastic copolymer (1990-10-23),
3. 4885125 - Method for in-mold polymerization of unsaturated compound (1989-12-05),
4. 4859750 - Method for the production of polymethyl methacrylate (1989-08-22),
5. 4837286 - Method for the production of polymethacrylates (1989-06-06),
6. 4789709 - Process for the production of heat resistant thermoplastic copolymer (1988-12-06),
7. 4717756 - Process for preparing methacrylate polymer (1988-01-05),
8. 4699964 - Antistatic acrylic resin composition and method for the production (1987-10-13),
9. 4661571 - Process for the production of heat resistant methacrylic resin (1987-04-28),
10. 4604414 - Antistatic acrylic resin composition and method for the production (1986-08-05),
11. 4400236 - Rotating disc evapo-extrusion process and apparatus (1983-08-23),
12. 4382983 - Method for the formation of abrasion-resistant coating film (1983-05-10),
13. 4344906 - Process for producing glass fiber-reinforced transparent cast sheet (1982-08-17),
14. 4287317 - Continuous process for producing rubber-modified methyl methacrylate (1981-09-01),

Title: Masahiro Yuyama: Innovator in Coating Composition Technology

Introduction

Masahiro Yuyama is a prominent inventor based in Niihama, Japan. He has made significant contributions to the field of coating compositions, holding a total of 14 patents. His work is characterized by a focus on thermoplastic copolymers, which have applications in various industries.

Latest Patents

One of Yuyama's latest patents involves a novel coating composition. This composition includes a thermoplastic copolymer that comprises (a) 2.0 to 22.0% by weight of a methyl methacrylate unit, (b) 38.0 to 70.0% by weight of a styrene unit, and (c) a methacrylic acid unit and (d) an acid anhydride unit with 6-membered ring structures. The acid anhydride unit is present in an amount of not less than 16.0% by weight of the total units (c) and (d). The copolymer exhibits a reduced viscosity of 0.3 to 1.5 dl/g, measured in a 1% solution in dimethylformamide at 25°C. This innovative composition is designed to provide well-balanced heat distortion resistance, water absorption properties, mechanical strength, and excellent heat stability, making it suitable for producing various parts such as automobile components, electrical parts, industrial parts, and miscellaneous goods.

Career Highlights

Masahiro Yuyama is currently associated with Sumitomo Chemical Company, Limited, where he continues to develop advanced materials. His expertise in thermoplastic copolymers has positioned him as a key figure in the innovation of coating technologies.

Collaborations

Yuyama has collaborated with notable colleagues, including Masahiko Moritani and Yasuyuki Kato. Their combined efforts have contributed to the advancement of coating compositions and related technologies.

Conclusion

Masahiro Yuyama's work in the field of coating compositions exemplifies innovation and dedication to advancing material science. His contributions continue to impact various industries, showcasing the importance of research and development in creating effective solutions.

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