For the Inventor, By the Inventor

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Toh Zinc Company Limited

USPTO Granted Patents = 1

Forward Citations = 3

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6 inventors (with patents filed for the assignee):

Takeo Koizumi (1 out of 3 patents)

Kiyoshi Yoshizawa (1 out of 7 patents)

Kikuo Nojiro (1 out of 5 patents)

4. Katsuyoshi Mitsutomi (1 out of 2 patents)

5. Kenichi Otsuka (1 out of 1 patent)

6. Seiji Nakamura (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 4371440 - Method of treating a waste water rich in protein (1983-02-01),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5,730 in Tokyo

#15,542 in Japan

Toh Zinc Company Limited

Forward Citations = 3

6 inventors:

Takeo Koizumi (1 out of 3 patents)

Kiyoshi Yoshizawa (1 out of 7 patents)

Kikuo Nojiro (1 out of 5 patents)

4. Katsuyoshi Mitsutomi (1 out of 2 patents)

5. Kenichi Otsuka (1 out of 1 patent)

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