19 Utility Patents
#1,902 in Kawasaki
#39,095 in Japan
#180,674 in the World
Forward Citations = 48
Company Filing History:
Tokyo Ohka Kogyo Co., Ltd.

Tokyo Ohka Tokyo Co., Ltd.
4. 1 out of 3
Tokyo Ohka Kogyo., Ltd.
where one patent can have more than one assignee
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