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. 18, 1989
Filed:
Oct. 26, 1987
Applicant:
Inventors:
Kunihiko Ohga, Shizuoka, JP;
Keiso Saeki, Shizuoka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503214 ; 427150 ; 427151 ; 428342 ; 428914 ; 503207 ; 503215 ; 503225 ;
Abstract
A pressure-sensitive recording sheet which forms a colored image by the reaction of an electron donating color former with an electron accepting developer, comprising a support having provided thereon a micro-encapsulated electron donating color former and an electron accepting developer is disclosed, wherein one or more layers containing the microencapsulated electron donating color former contains at least one pigment having a pH of 8.5 or more.