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Nitto Kogyo Co., Ltd.

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USPTO Granted Patents = 37

Forward Citations = 246

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31 inventors (with patents filed for the assignee):

Naka Hirayama (10 out of 10 patents)

Yuichiro Higashi (9 out of 9 patents)

Yasuhide Hamada (5 out of 5 patents)

4. Youichi Ishikawa (5 out of 8 patents)

5. Atsushi Ikeda (4 out of 4 patents)

6. Shinji Saito (3 out of 223 patents)

7. Takeshi Kato (3 out of 72 patents)

8. Masao Takagi (3 out of 6 patents)

9. Goki Inukai (3 out of 4 patents)

10. Kesaaki Kitazawa (3 out of 4 patents)

11. Sanji Inagaki (2 out of 17 patents)

12. Naoki Toda (2 out of 3 patents)

13. Jun Ogawa (1 out of 1 patent)

14. Hiroyuki Nakano (1 out of 12 patents)

15. Naka Hirayma (1 out of 1 patent)

Core Competencies:

Silicone Elastomer

Fixing Roller

Toner Supply Roller

Developing Roller

Electroconductive Roller

Fixing Apparatus

Rubber Fixing Roller

Oil Application Roll

Heat Roller Fixing Device

Massaging Water Stream

Coated Belt

Endless Belt

37 patents: Sort by Forward Citations

1. 7776935 - Water-in-oil emulsion composition for forming silicone elastomer porous material (2010-08-17),

2. 7699764 - Fixing roller (2010-04-20),

3. 7285578 - Water-in-oil emulsion composition for forming silicone elastomer porous material (2007-10-23),

4. 7268169 - Silicone elastomer porous body (2007-09-11),

5. 7239837 - Fixing apparatus (2007-07-03),

6. 7212776 - Fixing belt having higher hardness at a rear surface than at a front surface (2007-05-01),

7. 7152322 - Toner supply roller (2006-12-26),

8. 7022417 - Metal belt and coated belt (2006-04-04),

9. 7007384 - Developing roller and method of producing the same (2006-03-07),

10. 6935994 - Fixing roller (2005-08-30),

11. 6763218 - Fixing apparatus (2004-07-13),

12. 6685612 - Developing roller (2004-02-03),

13. 6647238 - Fixing belt and fixing apparatus equipped with same (2003-11-11),

14. 6555163 - Developing roller and method of producing the same (2003-04-29),

15. 6471628 - Developing roller with porous surface (2002-10-29),

Company Overview

Nitto Kogyo Co., Ltd. is a prominent Japanese company specializing in the development and manufacturing of advanced materials and components. The organization focuses on various sectors, including automotive, electronics, and industrial applications, providing innovative solutions that enhance performance and efficiency. With a commitment to research and development, Nitto Kogyo leverages cutting-edge technologies to address the evolving needs of its global clientele, ensuring high-quality products that meet diverse market demands.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

37 Patents

#966 in Tokyo

#2,061 in Japan

#18,312 in the World

Nitto Kogyo Co., Ltd.

Forward Citations = 246

31 inventors:

Naka Hirayama (10 out of 10 patents)

Yuichiro Higashi (9 out of 9 patents)

Yasuhide Hamada (5 out of 5 patents)

4. Youichi Ishikawa (5 out of 8 patents)

5. Atsushi Ikeda (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nitto Kogyo Co., Ltd.. Retrieved from https://idiyas.com/company/nitto-kogyo-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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