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Kosaku & Co., Ltd.

USPTO Granted Patents = 3

Forward Citations = 19

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7 inventors (with patents filed for the assignee):

Kazuhiro Fukuoka (3 out of 3 patents)

Haruo Konishi (2 out of 9 patents)

Isao Miyatake (2 out of 2 patents)

4. Keiki Kiyohara (2 out of 2 patents)

5. Saburo Yonekura (1 out of 1 patent)

6. Masaji Hamamoto (1 out of 1 patent)

7. Tadayuki Konishi (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5183500 - Electroless plating bath composition and method for production thereof (1993-02-02),

2. 5135574 - Electroless Pb-Sn alloy plating bath composition (1992-08-04),

3. 4828657 - Method for production of tin-cobalt, tin-nickel, or tin-lead binary (1989-05-09),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#3,267 in Tokyo

#8,766 in Japan

Kosaku & Co., Ltd.

Forward Citations = 19

7 inventors:

Kazuhiro Fukuoka (3 out of 3 patents)

Haruo Konishi (2 out of 9 patents)

Isao Miyatake (2 out of 2 patents)

4. Keiki Kiyohara (2 out of 2 patents)

5. Saburo Yonekura (1 out of 1 patent)

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