201 Utility and 63 Design Patents
#2 in Shizuoka
#234 in Japan
#2,081 in the World
rank by utility patentsForward Citations = 3,000
Company Filing History:





Other
4. 3 out of 13,305

5. 3 out of 217
Dowa Mining Co., Ltd.
where one patent can have more than one assignee
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