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Kawasaki-shi, Japan

Tokyo Ohka Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 3

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9 inventors (with patents filed for the assignee):

Yasuhiro Yoshii (1 out of 19 patents)

Tsuyoshi Nakamura (1 out of 69 patents)

Takeshi Iwai (1 out of 57 patents)

4. Kotaro Endo (1 out of 27 patents)

5. Makiko Irie (1 out of 20 patents)

6. Yoshitsugu Kawamura (1 out of 3 patents)

7. Yoshiyuki Utsumi (1 out of 71 patents)

8. Kazuto Obuchi (1 out of 5 patents)

9. Hisashi Hori (1 out of 3 patents)

2 patents: Sort by Forward Citations

1. 7799507 - Positive resist composition for immersion lithography and method for forming resist pattern (2010-09-21),

2. 5980684 - Processing apparatus for substrates (1999-11-09),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#23 in Kawasaki-shi

#10,965 in Japan

Kawasaki-shi, Japan

Tokyo Ohka Co., Ltd.

Forward Citations = 3

9 inventors:

Yasuhiro Yoshii (1 out of 19 patents)

Tsuyoshi Nakamura (1 out of 69 patents)

Takeshi Iwai (1 out of 57 patents)

4. Kotaro Endo (1 out of 27 patents)

5. Makiko Irie (1 out of 20 patents)

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