28 Utility and 4 Design Patents
#29 in Takatsuki
#21,362 in Japan
#97,894 in the World
rank by utility patentsForward Citations = 476
Company Filing History:
Sumitomo Special Metals Co., Ltd.


4. 1 out of 209

5. 1 out of 1
Sumitomo Special Meter Co., Ltd.
where one patent can have more than one assignee
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