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Sumitomo Naugatuck Co., Ltd.

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USPTO Granted Patents = 39

Forward Citations = 348

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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)

Core Competencies:

Resin Composition

Flame Retardant

Thermoplastic

Polyphenylene Ether

Adhesive Composition

Rubber-Modified Copolymer

Heat Stable

Weather-Resistant

Elastomeric Composition

Color Development

Copolymers

Paper Coating

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),

Company Overview

Sumitomo Naugatuck Co., Ltd. is a prominent player in the field of advanced materials and chemical engineering, specializing in the development and manufacturing of high-performance products for various industries. The company focuses on innovative solutions that enhance the efficiency and sustainability of applications in sectors such as automotive, electronics, and construction. With a strong emphasis on research and development, Sumitomo Naugatuck is committed to advancing technology and delivering quality materials that meet the evolving needs of its global clientele.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

39 Patents

#214 in Osaka

#2,007 in Japan

#17,475 in the World

Sumitomo Naugatuck Co., Ltd.

Forward Citations = 348

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Naugatuck Co., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-naugatuck-company

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

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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