31 Utility Patents
#1,388 in Yokohama
#18,710 in Japan
#87,612 in the World
Forward Citations = 48
Company Filing History:



4. 3 out of 2,716

5. 2 out of 164,057

where one patent can have more than one assignee
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#1,388 in Yokohama
#18,710 in Japan
#87,612 in the World
Company Filing History:





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