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:
May. 26, 1987
Filed:
May. 28, 1986
Applicant:
Inventors:
Masakichi Yahagi, Tokyo, JP;
Takeo Obitsu, Omiya, JP;
Tetsuo Igaki, Kawagoe, JP;
Kazuyuki Horisawa, Tokyo, JP;
Morio Nanbu, Fujimi, JP;
Kimiaki Kinoshita, Kitamoto, JP;
Sumio Manaka, Tokyo, JP;
Assignee:
Shin Nisso Kako Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ; B41M / ;
U.S. Cl.
CPC ...
346221 ; 427151 ; 549224 ; 549225 ;
Abstract
3-N-isobutyl-ethylamino-7-phenylaminofluoran is a new green color former. It is used, together with an acidic substance, in color forming record materials for use in pressure sensitive copying paper, heat-sensitive recording paper and the like.