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:
Feb. 09, 1999
Filed:
Jun. 27, 1997
Norio Ohkuma, Yokohama, JP;
Tetsuro Kuwayama, Yokohama, JP;
Toshiaki Majima, Yokohama, JP;
Naosato Taniguchi, Machida, JP;
Yomishi Toshida, Yokohama, JP;
Yoko Yoshinaga, Machida, JP;
Tetsuro Fukui, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A photosensitive recording medium comprises a composition containing a radical-polymerizable monomer, a cationic-polymerizable monomer, a radical polymerization initiator, and a cationic-polymerization initiator as main constituents. A method of producing a hologram comprises a first step of preparing the photosensitive recording medium; a second step of exposing the medium to an interference pattern of radiation rays; and a third step of exposing the entire region of the medium to light; and optionally a fourth step of heating the entire of the medium.