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. 12, 2013
Filed:
Jun. 06, 2008
Yoshihisa Usami, Ashigarakami-gun, JP;
Satoru Yamada, Ashigarakami-gun, JP;
Toshio Sasaki, Ashigarakami-gun, JP;
Hiroyuki Suzuki, Ashigarakami-gun, JP;
Makoto Kamo, Ashigarakami-gun, JP;
Yoshihisa Usami, Ashigarakami-gun, JP;
Satoru Yamada, Ashigarakami-gun, JP;
Toshio Sasaki, Ashigarakami-gun, JP;
Hiroyuki Suzuki, Ashigarakami-gun, JP;
Makoto Kamo, Ashigarakami-gun, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
In order to record an interference fringe pattern in a recording layer of a medium, a plurality of laser beams are caused to interfere so as to form interference fringes in the recording layer; and during a time period over which the plurality of laser beams are caused to interfere, the following steps are continuously performed: (1) producing a signal varying according to a shift of a specific position in the recording layer; and (2) shifting a fringe-forming position in the recording layer by changing a phase of at least one of the laser beams or moving the recording layer based upon the signal produced in the step (1).