24 Utility Patents
#1,494 in Osaka
#28,034 in Japan
#129,882 in the World
Forward Citations = 375
Company Filing History:


Dai-ichi Kogyo Seiyaku Co., Ltd.
4. 3 out of 217
Dowa Mining Co., Ltd.
5. 1 out of 13,193
Panasonic Intellectual Property Management Co., Ltd.
where one patent can have more than one assignee
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