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:
Jan. 24, 2006
Filed:
Oct. 25, 2004
Tadafumi Tatewaki, Shizuoka, JP;
Shuji Miyamoto, Shizuoka, JP;
Hiroki Kuboyama, Shizuoka, JP;
Yoshihiko Hotta, Shizuoka, JP;
Hiroshi Higashi, Shiga, JP;
Tomohiko Terai, Shiga, JP;
Shinya Takemoto, Shiga, JP;
Makoto Kajiyashiki, Tokyo, JP;
Tadafumi Tatewaki, Shizuoka, JP;
Shuji Miyamoto, Shizuoka, JP;
Hiroki Kuboyama, Shizuoka, JP;
Yoshihiko Hotta, Shizuoka, JP;
Hiroshi Higashi, Shiga, JP;
Tomohiko Terai, Shiga, JP;
Shinya Takemoto, Shiga, JP;
Makoto Kajiyashiki, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Mitsubishi Plastics, Inc., Tokyo, JP;
Abstract
An information recording-displaying card, includes: a core sheet; and an over sheet bonded to the core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of relatively forming a coloring state and a decolorizing state, with a difference in at least one of heating temperature, and cooling rate after heating. The over sheet is embossable in an upper portion thereof, functions as an image displaying section, and meets the following condition (A) and condition (B): (A) (the over sheet's upper limit temperature for erasing −30° C.)≦(temperature of a storage elasticity E' (1.0 E+08) Pa)≦200° C., and (B) 1.0 E+04 Pa≦(the storage elasticity E′ of the over sheet at 180° C.)≦5.0 E+07 Pa.