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. 15, 1989
Filed:
Dec. 28, 1987
Toshimasa Usami, Shizuoka, JP;
Akihiro Shimomura, Shizuoka, JP;
Sumitaka Tatsuta, Shizuoka, JP;
Seiji Hatakeyama, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
This invention discloses a manufacturing method of a heat sensitive material having a transparent heat sensitive layer comprised of controlling transparency of heat sensitive layer by coating a composition containing an emulsified dispersion prepared by dispersing a color developer dissolved into an organic solvent slightly soluble or insoluble in water and microcapsules containing at least a colorless or light colored electron donating dye precursor (core material) and then drying the coat, in which a refractive index of the core material and that of an oil phase of the color developer dispersion are properly adjusted. When providing a transparent heat sensitive layer obtained by the above method on a printed support, a printed matter can be seen through the heat sensitive layer.