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. 05, 1991
Filed:
Mar. 15, 1989
Applicant:
Inventor:
Takahiro Torii, Takasago, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503226 ; 427152 ; 503200 ;
Abstract
By providing an intermediate layer composed of colloidal silica and/or alumina between a support and a thermosensitive color forming layer, a thermosensitive recording material having high color sensitivity which is free from undesirable foreign matters adhered to a thermal head can be provided. The colloidal silica and/or colloidal alumina is used in a coverage of 1 to 15 g/m.sup.2.