8 Utility Patents
#19,840 in Tokyo
#107,301 in Japan
#520,178 in the World
Forward Citations = 80
Company Filing History:

Showa Highpolymer Co., Ltd.
Other
4. 1 out of 1,267

5. 1 out of 1
Yoichi Hirose
where one patent can have more than one assignee
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