55 Utility Patents
#347 in Kawasaki
#6,294 in Japan
#31,701 in the World
Forward Citations = 141
Company Filing History:
Tokyo Ohka Kogyo Co., Ltd.

Toyko Ohka Kogyo Co., Ltd.
4. 1 out of 7
Daito Chemix Corporation
5. 1 out of 1
Tokyo Ohka Tokyo Co., Ltd.
where one patent can have more than one assignee
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