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:
May. 06, 2008
Filed:
May. 12, 2004
Hideyoshi Horimai, Yokohama, JP;
Hideyoshi Horimai, Yokohama, JP;
Optware Corporation, Kanagawa, JP;
Abstract
An object is to lighten a pickup and reduce the size of a driving device and, as a result, to reduce the size of an optical information recording apparatus, an optical information reproducing apparatus and an optical information recording/reproducing apparatus, and to improve the transfer rate by enabling to make an access to the optical information recording medium at a high speed. In an optical information recording apparatus using holography, having: a light source, an information expressing devicefor generating information light by adding information to light from the light source; a reference light generatorfor generating reference light from the light from the light source; and an objective lensfor irradiating the information light and the reference light onto an optical information recording medium, the apparatus comprises a fixed unitincluding at least the information expressing deviceand a moving unitincluding at least the objective lens, which moves for making access to a prescribed recording position of the optical information recording medium