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Polymer Processing Research Instr., Ltd.

USPTO Granted Patents = 1

Forward Citations = 23

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4 inventors (with patents filed for the assignee):

Shuichi Murakami (1 out of 124 patents)

Yuki Kuroiwa (1 out of 12 patents)

Kazuhiko Kurihara (1 out of 45 patents)

4. Hiroshi Yazawa (1 out of 34 patents)

1 patent: Sort by Forward Citations

1. 5729878 - Web spreading apparatus (1998-03-24),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5,742 in Tokyo

#15,559 in Japan

Polymer Processing Research Instr., Ltd.

Forward Citations = 23

4 inventors:

Shuichi Murakami (1 out of 124 patents)

Yuki Kuroiwa (1 out of 12 patents)

Kazuhiko Kurihara (1 out of 45 patents)

4. Hiroshi Yazawa (1 out of 34 patents)

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