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:
Jan. 13, 1998
Filed:
Mar. 12, 1996
Applicant:
Inventors:
Toshiaki Minami, Tokyo, JP;
Tomoaki Nagai, Tokyo, JP;
Kaoru Hamada, Tokyo, JP;
Akio Sekine, Tokyo, JP;
Toshimi Satake, Tokyo, JP;
Toshiyuki Takano, Tokyo, JP;
Hideki Hayasaka, Tokyo, JP;
Assignee:
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
4302701 ; 430338 ; 430945 ; 430964 ; 430944 ; 503201 ; 503218 ; 503221 ; 503226 ; 503216 ; 503225 ;
Abstract
An optical recording medium including a substrate having thereon a recording layer containing a dye precursor, a color developer reactable with the dye precursor to develop a color, and a light absorbent for converting light to heat, characterized in that the color developer is at least one compound of Formula (1):