12 Utility Patents
#12,791 in Tokyo
#68,228 in Japan
#314,808 in the World
Forward Citations = 250
Company Filing History:

Dai Nippon Printing Co., Ltd.
Hitachi, Ltd.
where one patent can have more than one assignee
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#12,791 in Tokyo
#68,228 in Japan
#314,808 in the World
Company Filing History:

Get your Inventor Badge Today