Image display apparatus
CA 1267680 C · Owner: Sekihara, Toshinobu · Inventors: Sekihara, Toshinobu; Moriyama, Yuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image display apparatus for displaying images on a fluorescent screen comprises plural linear cathodes an electron beam extraction electrode with plural apertures and vertical deflection electrodes which are formed by segments, and the respective segments of the vertical deflection electrodes have various shapes and deflection voltages applied to the respective segments can be varied, whereby distortion of the displayed images on the fluorescent screen is corrected.
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
- Granted April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- 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.