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Inuyama-Shi, Japan

Nakagawa Sangyo Co., Ltd.

USPTO Granted Patents = 18

EPO Patents = 9

Forward Citations = 206

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13 inventors (with patents filed for the assignee):

Noriaki Nakagawa (12 out of 12 patents)

Yukihiro Nakagawa (6 out of 10 patents)

Hiroshige Nakagawa (5 out of 5 patents)

4. Sumio Kamiya (4 out of 23 patents)

5. Hironori Sasaki (4 out of 5 patents)

6. Takeshi Inoue (2 out of 7 patents)

7. Hiroshi Funabashi (2 out of 3 patents)

8. Kazutoshi Wakatsuki (1 out of 15 patents)

9. Isao Tanaka (1 out of 1 patent)

10. Kazumi Imamura (1 out of 1 patent)

11. Naoki Ikegami (1 out of 1 patent)

12. Yoshikatsu Nakagawa (1 out of 1 patent)

13. Yasuo Gotomyo (1 out of 6 patents)

14. Tomoki Mabuchi (13 patents)

15. Nakagawa Yukihiro (0 patent)

18 patents: Sort by Forward Citations

1. 12269085 - Anchor for reinforcing bar made of fiber-reinforced plastic and manufacturing method therefor (2025-04-08),

2. 12083707 - Method for producing a reinforcing bar (2024-09-10),

3. 12011862 - Die and method for molding reinforcing bar (2024-06-18),

4. 11746682 - Method for manufacturing a vehicle muffler (2023-09-05),

5. 11701843 - Method and resin impregnating device for producing a reinforcing bar (2023-07-18),

6. 11441262 - Forgery-preventing thread/yarn (2022-09-13),

7. 10190475 - Method for manufacturing a double pipe (2019-01-29),

8. 8533952 - Pipe flange forming method (2013-09-17),

9. 8501643 - Method for manufacturing basalt fiber (2013-08-06),

10. 8216406 - Method for manufacturing thermally expandable base material for vehicle interior and method for manufacturing base material for vehicle interior using same (2012-07-10),

11. 8037719 - Method for manufacturing basalt fiber (2011-10-18),

12. 7896129 - Sub-muffler (2011-03-01),

13. 7767603 - Basalt fiber material (2010-08-03),

14. 7461505 - Exhaust pipe of vehicle (2008-12-09),

15. 7240767 - Fixing structure of tail pipe of exhaust pipe (2007-07-10),

Nakagawa Sangyo Co., Ltd. is a Japanese company specializing in the manufacturing of industrial materials and components. With over 50 years of experience, Nakagawa Sangyo has established itself as a reliable and innovative provider of high-quality products. The company offers a wide range of solutions including metal parts, electronic components, and resin products. Nakagawa Sangyo is committed to delivering excellent customer service and contributing to the advancement of various industries through continuous research and development.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

18 Patents

#1 in Inuyama-Shi

#3,052 in Japan

#33,177 in the World

Inuyama-Shi, Japan

Nakagawa Sangyo Co., Ltd.

Forward Citations = 206

13 inventors:

Noriaki Nakagawa (12 out of 12 patents)

Yukihiro Nakagawa (6 out of 10 patents)

Hiroshige Nakagawa (5 out of 5 patents)

4. Sumio Kamiya (4 out of 23 patents)

5. Hironori Sasaki (4 out of 5 patents)

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