5 Utility Patents
#1,792 in Ibaraki
#160,492 in Japan
#809,068 in the World
Forward Citations = 56
Company Filing History:
Hitachi Engineering Co., Ltd.
where one patent can have more than one assignee
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#1,792 in Ibaraki
#160,492 in Japan
#809,068 in the World
Company Filing History:
Get your Inventor Badge Today