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:
Oct. 28, 1980
Filed:
Dec. 14, 1978
Applicant:
Inventor:
Takao Kosaka, Takasago, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428537 ; 428488 ; 428913 ; 430964 ;
Abstract
The thermosensitive recording paper comprising a support and, supported thereon, a combination of a colorless or slightly colored lactone compound color former and a phenolic compound capable of rendering said lactone compound to develop color, is improved in its printing quality in that said support is an undercoated paper.