12 Utility Patents
#376 in Tsukuba
#69,852 in Japan
#327,802 in the World
Forward Citations = 3
Company Filing History:

Ishihara Sangyo Kaisha, Ltd.
where one patent can have more than one assignee
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#376 in Tsukuba
#69,852 in Japan
#327,802 in the World
Company Filing History:

Get your Inventor Badge Today