Stencil plate
Patent 6659003 Issued on December 9, 2003. Estimated Expiration Date: 
September 27, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 27, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesThermal stencil master plate and method for processing the same Thermal stenciling device 5522313 Stencil perforating method, stencil perforating system, and stencil printing machine Process for perforating stencil printing sheet Thermal master making device Patent #: 6130697 InventorsAssigneeApplicationNo. 10/255712 filed on 09/27/2002US Classes:101/128.21Laminated and/or plural sheets and/or coated base and manufactureExaminersPrimary: Funk, Stephen R.Attorney, Agent or FirmInternational ClassesB41C 1/14 (20060101)B41N 1/24 (20060101) Foreign Application Priority Data2000-05-19 JPAbstractA perforation pattern is provided with a stencil plate, which is decreased in perforation configuration irregularity and has an adequate size of perforations. The stencil plate is produced from a heat sensitive stencil sheet having a heat shrinkable film by selectively heating the film with a heating device to form independent dot perforations corresponding to an image in the film, and each of the perforations has a through hole and a rim surrounding the through hole and bulging on a heated side of the film, and the rim has a height that satisfies the following formulae (1) and (2):where h denotes the height (μm) in reference to the surface of the film before heated, px and py respectively denote pitches (μm) in main and sub scanning directions of the heating device. | |
