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:
Jan. 28, 1997
Filed:
Aug. 14, 1995
Takanori Hasegawa, Tokyo-to, JP;
Riso Kagaku Corporation, Tokyo-to, JP;
Abstract
Provided is a method and device for stencil printing which can readily achieve a stencil printing of a prescribed even density even when the surface area of the printing surface is great, and which can ensure a multi color printing to be made without mixing of colors even when a large number of copies are to be printed. Printing ink having a sufficient consistency to retain its shape is deposited on a stencil master plate S as ink lumps B, and a stencil master plate S is placed in a pressure chamber 17 with its surface carrying the ink lumps B facing the diaphragm 15, the pressure chamber 17 having a wall portion formed by a diaphragm 15 which is at least either flexible or elastic. The pressure chamber 17 is then depressurized so that the diaphragm 15 conforms to the ink lumps B and wraps itself onto the ink lumps B, and the stencil master plate S in turn comes into close contact with the printing paper P by being pressed by the diaphragm 15 to thereby achieve a stencil printing on a sheet of printing paper through pressurization of the ink lumps B on the stencil master plate S.