Plate-making method and plate-making apparatus for stencil printing and stencil printing machine
CA 2455790 A1 · Owner: Okagaito, Yasunari · Inventors: Sugiyama, Yoshihide; Okagaito, Yasunari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plate making method for mimeographic printing which melts by thermal head heating a plate consisting of a thermoplastic resin film to form ink permeable openings. A film (12) is formed on one surface thereof with many fine recesses (14). A heater size for a thermal head (10) satisfies the relations HM > , 0.6PM and HS > 0.7PS, when the main-scanning-side array pitch of the heater is PM, main-scanning-side heater length HM sub-scanning-side feed pitch PS, and , sub-scanning-side heater length HS. A surface opposite to the fine recessformed surface of the film is heated by an energy output of up to 35 millijoule per mm2. The heated portion is melted for communication with fine recesses …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.