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:
Jul. 22, 1980
Filed:
Sep. 21, 1976
Applicant:
Inventors:
Masanao Kasai, Tokyo, JP;
Hitoshi Hanadate, Tokyo, JP;
Yoshioki Hajimoto, Chofu, JP;
Takashi Kitamura, Yokohama, JP;
Kiyonobu Endo, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01G / ;
U.S. Cl.
CPC ...
346 / ; 3461351 ; 427 53 ; 428156 ; 428199 ; 428209 ; 428539 ; 428913 ; 430-2 ; 430945 ; 430-1 ; 430306 ; 430394 ; 430494 ;
Abstract
A laser beam recording member capable of recording information by absorbing the radiation energy of a laser beam to cause a thermal melting deformation and/or evaporation removal at the portion exposed to the laser beam wherein the recording layer is composed of a non-metallic layer mainly composed of S, Se, Te or chalcogenide compounds thereof.