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:
Sep. 20, 1983
Filed:
Jun. 30, 1981
Applicant:
Inventors:
Yujiro Sugahara, deceased, late of Tokyo, JP;
Koichi Usui, Shibata, JP;
Masahide Ogawa, Shibata, JP;
Teiji Sato, Shibata, JP;
Yasuo Mizoguchi, Shibata, JP;
Seiji Kojima, Nakajyo, JP;
Assignee:
Mizusawa Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 21 ; 282 275 ; 427150 ; 427152 ; 428446 ;
Abstract
A color developer for pressure-sensitive recording paper which is derived from a clay mineral having a layer-structure composed of regular tetrahedrons of silica and which shows