12 Utility Patents
#359 in Aichi
#69,555 in Japan
#325,780 in the World
Forward Citations = 15
Company Filing History:
Tanaka Kikinzoku Kogyo K.k.

Other
4. 1 out of 313
Dowa Electronics Materials Co., Ltd.
5. 1 out of 217
Dowa Mining Co., Ltd.
where one patent can have more than one assignee
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