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:
Dec. 31, 2013
Filed:
Mar. 25, 2010
Toshimi Kamitani, Fujioka, JP;
Hiroyuki Okuyama, Fujioka, JP;
Toshimi Kamitani, Fujioka, JP;
Hiroyuki Okuyama, Fujioka, JP;
Mitsubishi Pencil Company, Ltd., Shinagawa-Ku, Tokyo, JP;
Abstract
In order to provide a thermosensitive decolorable ink composition which can readily be decolored with simple heating by rubbing and the like without using a microcapsule and is not developed again in color even after stored at very low temperature (−50° C. or lower) and which is excellent in stability with passage of time and has a vivid hue intensity, the above thermosensitive decolorable ink composition is provided with a constitution in which it contains as a colorant, color developing particles comprising at least a leuco dye, a developer and a crystalline substance and in which it further contains a decolorant comprising an amorphous resin.