6 Utility Patents
#5,896 in Kawasaki
#137,716 in Japan
#680,230 in the World
Forward Citations = 14
Company Filing History:
Tokyo Ohka Kogyo Co., Ltd.

where one patent can have more than one assignee
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#5,896 in Kawasaki
#137,716 in Japan
#680,230 in the World
Company Filing History:

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