16 Utility Patents
#15 in Chiyoda
#47,747 in Japan
#218,526 in the World
Forward Citations = 138
Company Filing History:
Hitachi, Ltd.


where one patent can have more than one assignee
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#15 in Chiyoda
#47,747 in Japan
#218,526 in the World
Company Filing History:


Get your Inventor Badge Today