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:
Jul. 12, 2022
Filed:
Nov. 29, 2017
Applicant:
Kabushiki Kaisha Pilot Corporation, Tokyo, JP;
Inventor:
Kuniyuki Senga, Kasugai, JP;
Assignee:
KABUSHIKI KAISHA PILOT CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K 24/08 (2006.01); B43K 23/12 (2006.01); C09D 11/17 (2014.01); C09D 11/50 (2014.01); B43K 29/02 (2006.01);
U.S. Cl.
CPC ...
B43K 24/082 (2013.01); B43K 23/12 (2013.01); B43K 29/02 (2013.01); C09D 11/17 (2013.01); C09D 11/50 (2013.01);
Abstract
A friction body is configured to discolor handwriting written with a thermochromic ink with frictional heat. The friction body includes a viscoelastic body, and has a Shore A hardness (based on JIS K 7215) immediately after start of contact of an indenter point of from 55 to 95.