11 Utility and 1 Design Patents
#3,477 in Kawasaki
#75,484 in Japan
#350,406 in the World
rank by utility patentsForward Citations = 148
Company Filing History:


4. 2 out of 141
Nippon Mining Co., Ltd.
5. 1 out of 177
The Tokyo Electric Power Company, Incorporated
where one patent can have more than one assignee
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