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:
May. 12, 1998
Filed:
Mar. 19, 1996
Masayuki Iijima, Tokyo, JP;
Osamu Shimizu, Tokyo, JP;
Yuichi Nakayasu, Tokyo, JP;
Yoshiaki Tsuruoka, Tokyo, JP;
Kayoko Sugiyama, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
The electrostatic information recording medium of the present invention has an electric charge retaining layer 11 stacked on at least an electrode layer 13, as shown in FIG. 1. The electric charge retaining layer is formed from either 1 a resin selected from among fluorocarbon resins, and an insulating organic substance having no photoconductivity, or 2 a fluorine-containing thermoplastic resin consisting of a repeating unit represented by formula (1): ##STR1## (where the content of the dioxonol component represented by the number m of repeating units is in the range of 20 mol % to 90 mol %) the fluorine-containing thermoplastic resin having a melt viscosity of 10.sup.2 to 10.sup.4 Pa.sec at a temperature which is 90.degree. C. to 110.degree. C. higher than its glass transition temperature.