25 Utility Patents
#1,828 in Yokohama
#25,558 in Japan
#116,936 in the World
Forward Citations = 6,485
Company Filing History:






4. 4 out of 475
Denki Kagaku Kogyo Kabushiki Kaisha
5. 1 out of 1
Tokyo Institute of Tech
where one patent can have more than one assignee
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