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Funabashi, Japan

Zenken Co., Ltd.

USPTO Granted Patents = 1

Forward Citations = 4

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8 inventors (with patents filed for the assignee):

Nobuo Takahashi (1 out of 8 patents)

Akio Hayashi (1 out of 48 patents)

Koichi Ogawa (1 out of 73 patents)

4. Norio Watanabe (1 out of 10 patents)

5. Ryuichi Isono (1 out of 1 patent)

6. Yoshio Fujioka (1 out of 1 patent)

7. Yousuke Yamada (1 out of 1 patent)

8. Yutaka Satoh (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 5851305 - Washing apparatus and washing method (1998-12-22),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5 in Funabashi

#15,559 in Japan

Funabashi, Japan

Zenken Co., Ltd.

Forward Citations = 4

8 inventors:

Nobuo Takahashi (1 out of 8 patents)

Akio Hayashi (1 out of 48 patents)

Koichi Ogawa (1 out of 73 patents)

4. Norio Watanabe (1 out of 10 patents)

5. Ryuichi Isono (1 out of 1 patent)

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