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Okuno Chemical Industries Co., Ltd.

USPTO Granted Patents = 29

CIPO Patents = 1

EPO Patents = 11

Trademarks = 21

Forward Citations = 225

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76 inventors (with patents filed for the assignee):

Koji Kita (5 out of 5 patents)

Kuniaki Otsuka (4 out of 4 patents)

Shingo Nagamine (3 out of 3 patents)

4. Tetsuo Sakai (3 out of 15 patents)

5. Yoshito Nokami (3 out of 3 patents)

6. Masatoshi Wada (3 out of 4 patents)

7. Takashi Kato (2 out of 114 patents)

8. Junji Yoshikawa (2 out of 2 patents)

9. Yukiya Takeuchi (2 out of 2 patents)

10. Junichi Katayama (2 out of 3 patents)

11. Yutaka Nakagishi (2 out of 5 patents)

12. Masaaki Sakaguchi (2 out of 5 patents)

13. Masahito Kawahara (2 out of 7 patents)

14. Shigemitsu Kawagishi (2 out of 6 patents)

15. Yoshio Yamaguchi (2 out of 15 patents)

29 patents: Sort by Forward Citations

1. 12258488 - Film-forming treatment liquid (2025-03-25),

2. 11912612 - Plating film and plating film production method (2024-02-27),

3. 11649558 - Electrolytic stripping agent for jig (2023-05-16),

4. 11047052 - Resin plating method (2021-06-29),

5. 10759943 - Black mixed oxide material and method for manufacturing same (2020-09-01),

6. 10184186 - Composition for blackening copper-based or silver-based metals (2019-01-22),

7. 10036097 - Conductive coating film forming bath (2018-07-31),

8. 9951433 - Conductive film-forming bath (2018-04-24),

9. 9920416 - Blackening treatment solution for black Cr—Co alloy plating film (2018-03-20),

10. 9657226 - Composition for etching treatment of resin material (2017-05-23),

11. 8563093 - Method for production of electroless plating material (2013-10-22),

12. 6951604 - Production method for flexible printed board (2005-10-04),

13. 6905990 - Ceramic color composition and method for bending flat glass (2005-06-14),

14. 6331239 - Method of electroplating non-conductive plastic molded products (2001-12-18),

15. 5976628 - Copper conductor paste and production method of copper conductor film (1999-11-02),

OKUNO CHEMICAL INDUSTRIES CO., LTD. is a leading chemical manufacturer based in Japan. With over 60 years of experience, they specialize in the production of high-quality surface treatment chemicals, electroplating chemicals, and wastewater treatment chemicals. Their innovative solutions cater to various industries including automotive, electronics, metalworking, and more. OKUNO CHEMICAL INDUSTRIES CO., LTD. is committed to delivering environmentally friendly and sustainable products, backed by extensive research and development. For more information about their products and services, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

29 Patents

#223 in Osaka

#2,301 in Japan

#21,864 in the World

Okuno Chemical Industries Co., Ltd.

Forward Citations = 225

76 inventors:

Koji Kita (5 out of 5 patents)

Kuniaki Otsuka (4 out of 4 patents)

Shingo Nagamine (3 out of 3 patents)

4. Tetsuo Sakai (3 out of 15 patents)

5. Yoshito Nokami (3 out of 3 patents)

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