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:
Mar. 26, 2002
Filed:
Sep. 02, 1998
Yoshihiko Hotta, Shizuoka, JP;
Kunichika Morohoshi, Shizuoka, JP;
Masafumi Torii, Shizuoka, JP;
Kunitoshi Sugiyama, Shizuoka, JP;
Hideyuki Kobori, Shizuoka, JP;
Katsushi Sugiyama, Chiba, JP;
Katsuaki Kokubo, Tokyo, JP;
Koji Kawai, Chiba, JP;
Kazuo Hosoda, Saitama, JP;
Masafumi Moriya, Saitama, JP;
Other;
Abstract
A reversible thermosensitive recording medium is capable of assuming a first color in a first temperature range which is above room temperature, having a first color assuming initiation temperature and a first color assuming upper-limit temperature, and assuming a second color when heated to a second temperature range which is above the first temperature range and then cooled, having a second color assuming lower-limit temperature, (a) the first color assuming upper-limit temperature being 125° C. or more, (b) the difference between the first color assuming upper-limit temperature and the second color assuming lower-limit temperature being 20° C. or less, and (c) the first color assuming initiation temperature being 95° C. or more, and a method of recording and erasing images, using the recording medium, a method of producing the recording medium, and the application thereof a card, a label, writable or rewritable disk cartridge, disk and tape cassette are proposed.