Inventor
YOKOSUKA TAKEHIKO
JP6 patents
Patents
6 patentsUS4913175AApr 3, 1990
Liquid-applying tip assembly
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US4457644AJul 3, 1984
Ball-point pen tip
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US6010269AJan 4, 2000
Writing implement
PILOT INK CO LTD7 citations73
US4968169ANov 6, 1990
Penpoint assembly and writing instrument employing the same
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US6076987AJun 20, 2000
Ballpoint pen and cap therefor
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US5290117AMar 1, 1994
Penpoint assembly and writing instrument employing the same
PILOT INK CO LTD6 citations60