5 Utility Patents
#2,975 in Saitama 343-0827
#162,438 in Japan
#826,262 in the World
Forward Citations = 13
Company Filing History:


Tokyo Ohka Kogyo Co., Ltd.
4. 2 out of 9
Marubun Corporation
5. 1 out of 16,453

where one patent can have more than one assignee
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