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Tokyo Kogaku Kikai Kabushiki

USPTO Granted Patents = 3

Forward Citations = 25

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5 inventors (with patents filed for the assignee):

Takashi Gemma (1 out of 15 patents)

Toshio Nakayama (1 out of 21 patents)

Takashi Yokokura (1 out of 21 patents)

4. Yasuo Iwafune (1 out of 8 patents)

5. Satoh Takuji (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4848907 - Method of and apparatus for analyzing interference fringes (1989-07-18),

2. 4488050 - Level measuring instrument having a staff with light-emitting elements (1984-12-11),

3. D266995 - Lens meter (1982-11-23),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#3,260 in Tokyo

#8,767 in Japan

Tokyo Kogaku Kikai Kabushiki

Forward Citations = 25

5 inventors:

Takashi Gemma (1 out of 15 patents)

Toshio Nakayama (1 out of 21 patents)

Takashi Yokokura (1 out of 21 patents)

4. Yasuo Iwafune (1 out of 8 patents)

5. Satoh Takuji (1 out of 1 patent)

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