12 Utility Patents
#5,907 in Kanagawa
#69,890 in Japan
#328,363 in the World
Forward Citations = 96
Company Filing History:

Showa Denko Kabushiki Kaisha
Other
4. 1 out of 11
Showa Denka K.k.
5. 1 out of 217
Dowa Mining Co., Ltd.
where one patent can have more than one assignee
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