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:
Aug. 07, 1984
Filed:
Jan. 29, 1982
Applicant:
Inventors:
Isamu Kajita, Yokohama, JP;
Fumio Sumino, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 54 ; 430 94 ;
Abstract
A method of recording information by projecting electromagnetic radiation to a recording medium, wherein a first electromagnetic radiation in a wavelength region to which the recording medium has its principal sensitivity is uniformly imparted to the recording medium, and, while the hysteresis remains, a second electromagnetic radiation a wavelength longer than said first wavelength region and which bears thereon the information to be recorded is projected onto the recording medium, thereby increasing the sensitivity of said recording medium with respect to said second electromagnetic radiation.