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. 22, 2003
Filed:
Mar. 05, 2001
Applicant:
Inventor:
Takayuki Usui, Shizuoka-ken, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/00 ;
U.S. Cl.
CPC ...
B32B 3/00 ;
Abstract
A protective cardboard for planographic printing plates has a cardboard main body, a moisture-proofing layer on both surfaces of the cardboard main body, and an adhering paper adhered onto the moisture-proofing layer. By the adhering paper contacting an interleaf sheet, a coefficient Y of static friction between the protective cardboard and the interleaf sheet is equal to or less than a coefficient X of static friction between the interleaf sheet and an image forming surface of the planographic printing paper (i.e., Y≦X).