66 Utility and 1 Design Patents
#237 in Osaka
#4,335 in Japan
#22,621 in the World
rank by utility patentsForward Citations = 344
Company Filing History:


Panasonic Intellectual Property Management Co., Ltd.
4. 7 out of 334
Sumitomo Electric Device Innovations, Inc.
5. 3 out of 172

where one patent can have more than one assignee
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