9 Utility Patents
#870 in Hyogo
#94,144 in Japan
#447,290 in the World
Forward Citations = 225
Company Filing History:

Hokkaido Sumiden Precision Industries, Ltd.
where one patent can have more than one assignee
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#870 in Hyogo
#94,144 in Japan
#447,290 in the World
Company Filing History:

Get your Inventor Badge Today