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. 03, 1998
Filed:
Nov. 13, 1995
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A stencil sheet having a solvent-soluble resin layer is made by a plate-making apparatus, which is formed of a holding and moving device to hold and move the stencil sheet, a solvent supply device for supplying a solvent to the stencil sheet, and a control device. The solvent supply device is disposed at a predetermined distance away from the stencil sheet held by the holding and moving device and is moved with respect to the stencil sheet at least one of a horizontal scanning direction and a vertical scanning direction intersecting with each other. The control device obtains image signals of an image to be produced on the stencil sheet and controls the solvent supply device so that an amount of the solvent to be fed to the stencil sheet by the solvent supply device is changed based on the image signals to thereby perforate holes in the stencil sheet. The sizes of the holes perforated by the solvent is changed by the amount thereof to alter gradation of the image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile