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:
Jun. 20, 2006
Filed:
Mar. 07, 2003
Applicants:
Atsushi Onoe, Saitama, JP;
Yasuo Cho, Miyagi, JP;
Inventors:
Atsushi Onoe, Saitama, JP;
Yasuo Cho, Miyagi, JP;
Assignees:
Pioneer Corporation, Tokyo-To, JP;
Yasuo Cho, Sendai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dielectric recording medium is provided with three layers of: a dielectric material, an electric conductor, and a substrate, and has a groove on the recording surface of the dielectric material. The groove is provided with one or a plurality of grooves. When a voltage is applied to a probe, the dielectric material just under the probe is polarized depending on an electric field generated between the electric conductor and the probe, which allows recording. Moreover, the groove facilitates the probe tracking since the probe scans along this groove.