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:
Aug. 25, 1981
Filed:
Sep. 10, 1979
Applicant:
Inventors:
Masato Nakamura, Tokyo, JP;
Saburo Nishimatsu, Tokyo, JP;
Toshitake Itoh, Shizuoka, JP;
Katsumi Moronuki, Koganei, JP;
Assignee:
Honshu Seishi Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428328 ; 427150 ; 427151 ; 427152 ; 428324 ; 428327 ; 428330 ; 428331 ; 428332 ; 428338 ; 428339 ; 428913 ;
Abstract
Disclosed is a heat-sensitive recording paper comprising a colorless or pale-colored chromogenic substance and a phenolic substance for coloring the chromogenic substance by heating, in which amorphous synthetic aluminum silicate and/or amorphous synthetic magnesium silicate is incorporated in a recording layer.