Title:
THERMOCHROMIC WRITING INSTRUMENT
Document Type and Number:
Japanese Patent JP2015101087
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent a paper surface from being dirty while handwriting of a pencil of a draft copy and color of a ball point pen is blurred black caused by friction of a writing instrument using thermochromic ink.SOLUTION: A heating element 4 is embedded in a friction member 3 disposed at a rear end part of a writing instrument 1 using thermochromic ink.
Inventors:
ARAKI AKIO
Application Number:
JP2013258631A
Publication Date:
June 04, 2015
Filing Date:
November 27, 2013
Export Citation:
Assignee:
ARAKI AKIO
International Classes:
B43K29/02; B43L19/00
Domestic Patent References:
| JP2010143082A | 2010-07-01 | |||
| JPH06105965A | 1994-04-19 | |||
| JP2000086872A | 2000-03-28 | |||
| JP2003151803A | 2003-05-23 | |||
| JP2005193583A | 2005-07-21 | |||
| JP2009220552A | 2009-10-01 |