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. 07, 2002
Filed:
Mar. 22, 1999
Applicant:
Inventors:
Takanobu Higuchi, Saitama-ken, JP;
Ayako Yoshida, Saitama-ken, JP;
Assignee:
Pioneer Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 3/70 ; G11B 5/84 ; G11B 7/26 ; B32B 3/02 ;
U.S. Cl.
CPC ...
G11B 3/70 ; G11B 5/84 ; G11B 7/26 ; B32B 3/02 ;
Abstract
An optical recording medium comprises a first information recording surface; a first reflecting layer formed on the first information recording surface; a second information recording surface; and a second reflecting layer formed on the second information recording surface. In particular, the first reflecting layer contains a titan oxide as a main component.