19 Utility Patents
#12 in Owariasahi
#38,144 in Japan
#173,628 in the World
Forward Citations = 402
Company Filing History:
Hitachi, Ltd.

where one patent can have more than one assignee
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#12 in Owariasahi
#38,144 in Japan
#173,628 in the World
Company Filing History:

Get your Inventor Badge Today