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Dipsol Chemicals Co., Ltd.

USPTO Granted Patents = 50

EPO Patents = 23

Trademarks = 2

Forward Citations = 286

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64 inventors (with patents filed for the assignee):

Manabu Inoue (24 out of 30 patents)

Tomitaka Yamamoto (11 out of 11 patents)

Katsuhide Oshima (10 out of 10 patents)

4. Shigemi Tanaka (8 out of 8 patents)

5. Hitoshi Sakurai (8 out of 10 patents)

6. Satoshi Yuasa (7 out of 7 patents)

7. Tadahiro Ohnuma (7 out of 7 patents)

8. Akira Hashimoto (6 out of 91 patents)

9. Toshiki Inomata (6 out of 6 patents)

10. Toshio Igarashi (4 out of 7 patents)

11. Shuji Igarashi (4 out of 4 patents)

12. Tsutomu Miyadera (3 out of 5 patents)

13. Go Sato (3 out of 3 patents)

14. Ayumi Saito (2 out of 2 patents)

15. Takashi Koike (2 out of 2 patents)

Core Competencies:

Electroplating

Trivalent Chromium

Corrosion Resistance

Zinc Alloy Plating

Copper-Nickel Alloy

Aluminum Electroplating

Hexavalent Chromium-Free

Molten Salt Bath

Rust Proof Film

Chemical Conversion Coating

Electroless Plating

Surface Treatment Solutions

50 patents: Sort by Forward Citations

1. 12428745 - Method and system for electroplating parts with metal (2025-09-30),

2. 11987888 - Trivalent chromium chemical conversion treatment liquid for zinc or zinc alloy base and chemical conversion treatment method using the same (2024-05-21),

3. 11643732 - Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment (2023-05-09),

4. 11008659 - Trivalent chromium chemical conversion liquid for zinc or zinc alloy bases and chemical conversion coating film (2021-05-18),

5. 10538854 - Copper-nickel alloy electroplating device (2020-01-21),

6. 10316421 - Copper-nickel alloy electroplating bath (2019-06-11),

7. 10309025 - Aluminum or aluminum alloy molten salt electroplating bath having good throwing power, electroplating method using the bath, and pretreatment method of the bath (2019-06-04),

8. 10240237 - Black coupling member for vehicles, having excellent corrosion resistance and black appearance (2019-03-26),

9. 10156020 - Zinc alloy plating method (2018-12-18),

10. 10023968 - Electric Al—Zr alloy plating bath using room temperature molten salt bath and plating method using the same (2018-07-17),

11. 9926638 - Aluminum or aluminum alloy molten salt electroplating bath having good throwing power, electroplating method using the bath, and pretreatment method of the bath (2018-03-27),

12. 9903038 - Zinc alloy plating method (2018-02-27),

13. 9828686 - Copper-nickel alloy electroplating bath and plating method (2017-11-28),

14. 9650521 - Friction modifier for top coating agent for trivalent chromium chemical conversion coating film or chromium-free chemical conversion coating film, and top coating agent including same (2017-05-16),

15. 9567453 - Finishing agent for trivalent chromium chemical conversion coating film, and method for finishing black trivalent chromium chemical conversion coating film (2017-02-14),

DIPSOL CHEMICALS CO., LTD. is a leading global provider of high-quality chemical solutions. With a commitment to innovation, the company specializes in the development, production, and distribution of a wide range of industrial chemicals. DIPSOL Chemicals serves various industries, including automotive, electronics, metal finishing, and more. With their state-of-the-art facilities and expertise, they strive to meet the evolving needs of their customers and provide sustainable solutions that enhance productivity and efficiency.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

50 Patents

#698 in Tokyo

#1,673 in Japan

#13,593 in the World

Dipsol Chemicals Co., Ltd.

Forward Citations = 286

64 inventors:

Manabu Inoue (24 out of 30 patents)

Tomitaka Yamamoto (11 out of 11 patents)

Katsuhide Oshima (10 out of 10 patents)

4. Shigemi Tanaka (8 out of 8 patents)

5. Hitoshi Sakurai (8 out of 10 patents)

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