For the Inventor, By the Inventor

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Toto Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 83

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5 inventors (with patents filed for the assignee):

Kazuhito Hashimoto (2 out of 36 patents)

Akira Fujishima (2 out of 42 patents)

Toshiya Watanabe (2 out of 28 patents)

4. Eiichi Kojima (2 out of 14 patents)

5. Atushi Kitamura (2 out of 2 patents)

2 patents: Sort by Forward Citations

1. 6139803 - Photocatalytic air treatment process under room light (2000-10-31),

2. 5874701 - Photocatalytic air treatment process under room light (1999-02-23),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#602 in

#10,973 in Japan

Toto Co., Ltd.

Forward Citations = 83

5 inventors:

Kazuhito Hashimoto (2 out of 36 patents)

Akira Fujishima (2 out of 42 patents)

Toshiya Watanabe (2 out of 28 patents)

4. Eiichi Kojima (2 out of 14 patents)

5. Atushi Kitamura (2 out of 2 patents)

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