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. 17, 2001
Filed:
Sep. 24, 1999
Applicant:
Inventors:
Hiromi Furuya, Shizuoka-ken, JP;
Masaru Shimada, Shizuoka-ken, JP;
Tadafumi Tatewaki, Shizuoka-ken, JP;
Masafumi Torii, Sizuoka, JP;
Fumio Kawamura, Sizuoka, JP;
Hiroaki Matsui, Numazu, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/30 ;
U.S. Cl.
CPC ...
B41M 5/30 ;
Abstract
A reversible thermosensitive recording material which includes a recording layer including an electron donating coloring agent and an electron accepting coloring developer and in which an image is reversibly formed and erased by appropriately heating and cooling the recording layer, wherein the recording layer further includes an erasure promoter including one or more secondary amide group having the following formulas (1), (2) or (3):