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:
Nov. 18, 1980
Filed:
Mar. 29, 1979
Applicant:
Inventors:
Fumihiko Nishida, Kyoto, JP;
Hiroshi Ijiri, Nagaokakyo, JP;
Assignee:
Dainippon Screen Seizo Kabushiki Kaisha, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 74 ; 354-4 ;
Abstract
An automatic masking device for use in a composer, wherein an original picture is held against a transparent plate, which comprises a plurality of opaque maskingsheets which are adapted to move inwards along the surface of the transparent plate from its edges, driven by drive means which is controlled by detectors which are mounted on the inside edges of at least some of the masking sheets.