The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2017
Filed:
May. 21, 2008
Applicants:
Takashi Wase, Nagoya, JP;
Michiyuki Yasuda, Nagoya, JP;
Yoshiaki Okawara, Nagoya, JP;
Inventors:
Assignees:
THE PILOT INK CO., LTD., Aichi, JP;
KABUSHIKI KAISHA PILOT CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K 1/08 (2006.01); B43K 7/02 (2006.01); B43K 7/10 (2006.01); B43K 8/04 (2006.01); B43K 8/06 (2006.01); B43K 23/12 (2006.01); B43K 29/02 (2006.01); B43L 19/00 (2006.01); C09D 11/16 (2014.01); C09D 11/18 (2006.01);
U.S. Cl.
CPC ...
B43K 1/086 (2013.01); B43K 7/02 (2013.01); B43K 7/10 (2013.01); B43K 8/04 (2013.01); B43K 8/06 (2013.01); B43K 23/126 (2013.01); B43K 29/02 (2013.01); B43L 19/0025 (2013.01); B43L 19/0068 (2013.01); C09D 11/16 (2013.01); C09D 11/18 (2013.01);
Abstract
There is provided a friction body which is adapted to rub a thermochromic image or handwriting formed on a paper surface by use of thermochromic ink to thermally discolor the thermochromic image or handwriting by frictional heat resultant from rubbing, a thermal conductivity of a friction portion of the friction body is set to be within 0.05 W/(m·K) to 50 W/(m·K).