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Sumitomo Jukikai Envirotech, Inc.

USPTO Granted Patents = 2

Forward Citations = 5

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5 inventors (with patents filed for the assignee):

Yoshikatsu Ikari (2 out of 8 patents)

Shiyoichiro Yokoyama (2 out of 2 patents)

Keisuke Katoh (2 out of 2 patents)

4. Ryutaro Itaya (1 out of 3 patents)

5. Toshio Kaga (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4362571 - Method for refining sugar solutions (1982-12-07),

2. 4163715 - Method for treatment of waste water (1979-08-07),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#4,058 in Tokyo

#10,964 in Japan

Sumitomo Jukikai Envirotech, Inc.

Forward Citations = 5

5 inventors:

Yoshikatsu Ikari (2 out of 8 patents)

Shiyoichiro Yokoyama (2 out of 2 patents)

Keisuke Katoh (2 out of 2 patents)

4. Ryutaro Itaya (1 out of 3 patents)

5. Toshio Kaga (1 out of 1 patent)

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