31 Utility Patents
#38 in Himeji
#18,684 in Japan
#87,406 in the World
Forward Citations = 298
Company Filing History:


Optec D.d. Melco Laboratory Co., Ltd.
4. 4 out of 4
Optec Dai-ichi Denko Co., Ltd.
5. 2 out of 1,625

where one patent can have more than one assignee
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