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. 13, 2003
Filed:
May. 13, 1998
Hideo Owa, Kanagawa, JP;
Shoei Kobayashi, Kanagawa, JP;
Susumu Sensyu, Kanagawa, JP;
Shinji Katsuramoto, Chiba, JP;
Toshio Watanabe, Kanagawa, JP;
Hidenori Mori, Kanagawa, JP;
Masanobu Yamamoto, Kanagawa, JP;
Masaki Saito, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disk apparatus for recording and/or reproducing user data onto and/or from an optical disk. The apparatus includes an optical head for irradiating a laser beam having a wavelength of approximately 680 (nm) or less to the optical disk and having a lens with a numerical aperture (NA) of approximately 0.7 or more and a working distance of approximately 560 (&mgr;m) or less. By utilizing such apparatus, a relatively large amount of data may be recorded onto the optical disk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile