3 Utility and 38 Design Patents
#72 in Tokyo
#227 in Japan
#3,209 in the World
rank by design patentsForward Citations = 821
Company Filing History:
Pentel K.k.
Pentel Kabushiki Kaisha D.b.a. Pentel Co., Ltd.
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#72 in Tokyo
#227 in Japan
#3,209 in the World
rank by design patentsCompany Filing History:
Get your Inventor Badge Today