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. 27, 2001
Filed:
Oct. 15, 1998
Applicant:
Inventors:
Assignee:
Pioneer Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/26 ;
U.S. Cl.
CPC ...
G11B 7/26 ;
Abstract
In a method of manufacturing a master optical disk, a photoresist applied to an optical disk substrate is coated with an optical film for converging recording light on the optical disk substrate in cooperation with a solid immersion lens body. The photoresist is exposed through the optical film by using an optical system including the solid immersion lens.