7 Utility Patents
#1,291 in Ibaraki
#119,877 in Japan
#583,015 in the World
Forward Citations = 182
Company Filing History:
Sanwa Electronics Instrument Co., Ltd.
Ihitachi Taga Technology, Ltd.
4. 1 out of 1,267
Hitachi Koki Co., Ltd.
where one patent can have more than one assignee
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