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:
Jul. 02, 1991
Filed:
Aug. 09, 1990
Applicant:
Inventors:
Kazuo Kinose, Shiga, JP;
Masato Tanaka, Shiga, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05C / ;
U.S. Cl.
CPC ...
427258 ; 118224 ; 118249 ; 118255 ; 118262 ; 427402 ; 427428 ;
Abstract
An improved roll coating apparatus and method includes a coating roll having a smooth surface for applying a resist, a doctor roll having grooves on its surface for supplying prescribed amount of the resist to the coating roll, and a back up roll which is in contact with the coating roll for conveying a substrate on which the resist is applied to a prescribed direction. Even if there are minute concave portions on the surface of the substrate, the resist is forced to fill the minute concave portions, since the resist is pressed and forced to be applied on the substrate by the coating roll having smooth surface and the back up roll.