5 Utility Patents
#599 in Hiratsuka
#159,849 in Japan
#798,777 in the World
Forward Citations = 222
Company Filing History:

Hitachi, Ltd.
where one patent can have more than one assignee
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#599 in Hiratsuka
#159,849 in Japan
#798,777 in the World
Company Filing History:

Get your Inventor Badge Today