21 Utility Patents
#266 in Hitachi
#33,402 in Japan
#153,348 in the World
Forward Citations = 1,309
Company Filing History:
Hitachi Engineering Co., Ltd.
where one patent can have more than one assignee
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#266 in Hitachi
#33,402 in Japan
#153,348 in the World
Company Filing History:
Get your Inventor Badge Today