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:
Apr. 20, 1999
Filed:
Dec. 18, 1997
Akira Suzuki, Shizuoka, JP;
Fumihito Masubuchi, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A recording and erasure of a visible image on a reversible heat-sensitive recording medium can be repeatedly performed in a stable condition without failure. The visible image is recorded by a thermal recording head on the reversible heat-sensitive recording medium. The recording medium is provided with an unheated area which is not exposed to heat. The visible image is erased by providing heat by a thermal erasing head. The reversible heat-sensitive recording medium is provided with an unheated area which is unheated by the thermal erasing head. The unheated area substantially extends along at least one of sides of the reversible heat-sensitive recording medium. The unheated area prevents the reversible heat-sensitive recording medium from being warped when a erasing operation is repeated many times.