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. 08, 1990
Filed:
Aug. 02, 1988
Applicant:
Inventors:
Yoshihiro Oguchi, Yokohama, JP;
Hiroyuki Sugata, Yokohama, JP;
Kyo Miura, Sagamihara, JP;
Tetsuro Fukui, Kawasaki, JP;
Yoshio Takasu, Tama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; B41M / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430270 ; 430495 ; 430945 ;
Abstract
An optical recording medium comprises at least one of polymethine type dyes represented by the formulae [1-I] through [2-IV] shown below, and a compound selected from an aminium salt compound and a diimonium salt compound in a recording layer.