6 Utility Patents
#1,644 in Wako
#138,286 in Japan
#684,584 in the World
Forward Citations = 49
Company Filing History:

Rikenkaki Kogyo Kabushiki Kaisha
where one patent can have more than one assignee
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#1,644 in Wako
#138,286 in Japan
#684,584 in the World
Company Filing History:

Get your Inventor Badge Today