65 Utility and 13 Design Patents
#20 in Hamamatsu
#4,491 in Japan
#23,403 in the World
rank by utility patentsForward Citations = 1,122
Company Filing History:

Iwatani Corporation
Kyoritsu Chemical Co., Ltd.
4. 1 out of 8,196

5. 1 out of 36,499

where one patent can have more than one assignee
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