14 Utility Patents
#510 in Hyogo
#58,166 in Japan
#270,802 in the World
Forward Citations = 153
Company Filing History:

Optec D.d. Melco Laboratory Co., Ltd.
Optec Dai-ichi Denko Co., Ltd.
4. 1 out of 1
Optec D.d. Meico Laboratory Co., Ltd.
5. 1 out of 1
Optec Dai-ichi Denko., Ltd.
where one patent can have more than one assignee
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