140 Utility and 1 Design Patents
#2 in Tokorozawa
#630 in Japan
#4,629 in the World
rank by utility patentsForward Citations = 1,214
Company Filing History:


Sii Crystal Technology Inc.
4. 12 out of 831,952 patents
Other
5. 9 out of 217

where one patent can have more than one assignee
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