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. 22, 1987
Filed:
Oct. 21, 1985
Applicant:
Inventors:
Masakichi Yahagi, Tokyo, JP;
Tetsuo Igaki, Kawagoe, JP;
Shinji Yoshinaka, Iwatsuki, JP;
Kimiaki Kinoshita, Kitamoto, JP;
Morikuni Saito, Tokyo, JP;
Toshiyuki Yamashita, Tokyo, JP;
Morio Nanbu, Fujimi, JP;
Assignee:
Shin Nisso Kako Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549226 ; 503221 ;
Abstract
Addition compound of fluoran compound and ketone useful as color former for heat or pressure-sensitive color-developable recording material.