57 Utility and 3 Design Patents
#1,397 in Tokyo
#5,962 in Japan
#30,079 in the World
rank by utility patentsForward Citations = 380
Company Filing History:


Kumiai Chemical Industry Co., Ltd.
4. 14 out of 211
Ihara Chemical Industry Co., Ltd.
5. 3 out of 58,125

where one patent can have more than one assignee
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