19 Utility and 2 Design Patents
#388 in Hachioji
#39,277 in Japan
#181,667 in the World
rank by utility patentsForward Citations = 778
Company Filing History:


Eko Instruments Co., Ltd.
4. 1 out of 15,823

5. 1 out of 4
Olympic Optical Company, LLC
where one patent can have more than one assignee
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