Heat-sensitive stencil plate material for stencil material, and stencil printing machine
CA 2456102 A1 · Owner: Duplo Seiko Corporation · 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 printing plate made only of a thermoplastic resin film is provided by use of a polyester film so that an ink-penetrating opening may be thermally made in the film without increasing the output of a thermal head. The film is a thermosensitive stencil printing plate (12) composed of an oriented PET film or a low-melting film produced by copolymerizing an oriented PET and PBT and having a predetermined thickness. A multitude of small recesses (14) are made in one side of the plate (12) by embossing. The embossing pressure P can be 104 × 102(m-t)/(m-g) Pa where t (~C) is the embossing temperature m , (~C) is the melting point of the film and g (~C) is the glass transition , point of …
Read the whole patent
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.