Forward Citations = 137

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12 inventors (with patents filed for the assignee):

Hiroyasu Ogawa (4 out of 16 patents)

Kazuhisa Saito (2 out of 8 patents)

Tetsuro Shigei (2 out of 5 patents)

4. Kazuo Izumi (2 out of 8 patents)

5. Kenji Shimazaki (1 out of 7 patents)

6. Yasuhisa Nagata (1 out of 8 patents)

7. Tsuyoshi Minamisawa (1 out of 9 patents)

8. Minoru Hirai (1 out of 7 patents)

9. Yasuo Kogo (1 out of 5 patents)

10. Shigeru Ikegami (1 out of 4 patents)

11. Mikio Shima (1 out of 1 patent)

12. Kenzi Shimazaki (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 4830845 - Precursor for production of preoxidized fibers or carbon fibers (1989-05-16),

2. 4772455 - Filter (1988-09-20),

3. 4500660 - Epoxy resin composition (1985-02-19),

4. 4420512 - Emulsion type sizing agent for carbon fibers, process for its (1983-12-13),

5. 4412937 - Method for manufacture of activated carbon fiber (1983-11-01),

6. 4401533 - Surface-treatment of carbon fiber (1983-08-30),

7. 4397831 - Production of carbon fibers from acrylonitrile based fibers (1983-08-09),

Toho Belson Co., Ltd. is a Japanese company specializing in the import and distribution of electronic components, industrial materials, and environmental equipment. With a focus on innovative technology and sustainable solutions, Toho Belson aims to provide high-quality products and services to customers around the world.

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USPTO Data Jan 1 1976 - Dec 30 2025

7 Patents

#2,034 in Tokyo

#5,310 in Japan

Tokyo, Japan

Toho Belson Co., Ltd.