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Sumitomo Naugatuck Co., Ltd.

USPTO Granted Patents = 39

Forward Citations = 346

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63 inventors (with patents filed for the assignee):

Hajime Sakano (14 out of 15 patents)

Akitoshi Ito (11 out of 12 patents)

Mikio Kodama (9 out of 11 patents)

4. Saburo Mishiba (7 out of 9 patents)

5. Kojiro Matsumoto (7 out of 7 patents)

6. Motoichi Yano (6 out of 8 patents)

7. Hiroyuki Minematsu (5 out of 6 patents)

8. Yasuhiro Honda (4 out of 4 patents)

9. Fumio Nakai (4 out of 4 patents)

10. Sadao Sekiguchi (4 out of 5 patents)

11. Tomio Yoshida (4 out of 6 patents)

12. Tadashi Saeki (4 out of 4 patents)

13. Takayoshi Fujiwara (3 out of 4 patents)

14. Mikio Hirai (3 out of 5 patents)

15. Nobujiro Izaki (3 out of 3 patents)

39 patents: Sort by Forward Citations

1. 5266634 - Resin composition (1993-11-30),

2. 5250590 - Flame retardant resin composition (1993-10-05),

3. 5155151 - Heat stable thermoplastic resin composition (1992-10-13),

4. 5093419 - Thermoplastic resin composition (1992-03-03),

5. 5082898 - Polyphenylene ether resin composition (1992-01-21),

6. 4963613 - Adhesive composition (1990-10-16),

7. 4900787 - Composition containing rubber-modified graft copolymer and carboxylic (1990-02-13),

8. 4880874 - Resin of polycarbonate and graft copolymer of unsaturated epoxy monomer (1989-11-14),

9. 4877833 - Heat resistant copolymer composition (1989-10-31),

10. 4861820 - Adhesive composition (1989-08-29),

11. 4855355 - Molding resin composition (1989-08-08),

12. 4824905 - Thermoplastic resin composition comprising polyamide, aromatic (1989-04-25),

13. 4757111 - Weather-resistant resin, and its production (1988-07-12),

14. 4734456 - Thermoplastic resin composition comprising styrenic polymer and (1988-03-29),

15. 4705827 - Resin composition comprising unsaturated dicarboxylic acid anhydride (1987-11-10),

Sumitomo Naugatuck Co., Ltd. is a leading manufacturer and distributor of innovative rubber and plastic products. With over 100 years of experience, we have built a strong reputation for delivering high-quality solutions to various industries. Our extensive product range includes automotive components, industrial materials, electronic parts, and healthcare products. We are committed to continuous improvement and sustainability, and our cutting-edge technology allows us to stay at the forefront of the industry. Visit our website to learn more about our diverse portfolio and explore how we can meet your specific requirements.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

39 Patents

#186 in Osaka

#1,961 in Japan

#16,923 in the World

Sumitomo Naugatuck Co., Ltd.

Forward Citations = 346

63 inventors:

Hajime Sakano (14 out of 15 patents)

Akitoshi Ito (11 out of 12 patents)

Mikio Kodama (9 out of 11 patents)

4. Saburo Mishiba (7 out of 9 patents)

5. Kojiro Matsumoto (7 out of 7 patents)

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