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. 05, 1990
Filed:
Aug. 31, 1988
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427164 ; 427162 ; 427428 ; 427429 ;
Abstract
A method of forming a protective film for an optical recording medium. A protective film forming ink having a viscosity in a range between 0.9 and 100 ps is applied on a surface of a pad, e.g., a semispherical pad, having a Shore A hardness between 8 and 30. The spherical surface of the pad thus applied with the ink is pressed to a substrate of the optical recording medium on which a reflective layer is formed to transfer the protective film forming ink to the surface of the substrate so as to cover the entire surface of the reflective layer and extend over the peripheral edges. Then, the ink is cured to form the protective film.