Inventor

YASHIMA MASATOSHI

JP4 patents

Patents

4 patents

US6817802B2Nov 16, 2004

Writing instrument

KURETAKE CO LTD28 citations90

USD472926SApr 8, 2003

Writing instrument

KURETAKE CO LTD10 citations71

US6439793B1Aug 27, 2002

Stippling instrument

KURETAKE CO LTD8 citations69

USD472925SApr 8, 2003

Writing instrument

KURETAKE CO LTD5 citations60