12 Utility Patents
#4,157 in Yokohama
#69,780 in Japan
#327,270 in the World
Forward Citations = 5
Company Filing History:
Sumitomo Electric Device Innovations, Inc.

where one patent can have more than one assignee
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#4,157 in Yokohama
#69,780 in Japan
#327,270 in the World
Company Filing History:

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