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:
Sep. 05, 1995
Filed:
Sep. 15, 1994
Applicant:
Inventors:
Hideo Suzaki, Numazu, JP;
Keishi Taniguchi, Susono, JP;
Kunio Hayakawa, Gotenba, JP;
Hiromi Furuya, Shimizu, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ;
U.S. Cl.
CPC ...
503207 ; 503216 ; 503221 ; 503226 ;
Abstract
A thermosensitive recording material having a support and a thermosensitive coloring layer which is formed on the support and contains a leuco dye and a color developer capable of inducing color formation in the leuco dye upon application of heat thereto, with the color developer including one compound with an acid dissociation constant (pKa) of 7.0 or less in a mixed solvent of water and methanol with a volume ratio of 1:1.
Suzaki, Hideo. (1995). Thermosensitive recording material (U.S. Patent No. 5447900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5447900
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