Waveguide multilayer holographic data storage
CA 2363279 C · Owner: Southbourne Investments Limited · Inventors: Zerrouk, Faouzi; Goulanian, Emine; Ashurbekov, Nariman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method and apparatus for providing a high information capacity high data rate and short access time simultaneously. The method and apparatus include a multilayer waveguide holographic carrier a multilayer waveguide holographic data storage system a multilayer waveguide hologram reading method with random data access and a process and apparatus for recording matrix waveguide hologram layers and assembling a multilayer carrier.
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 November 16, 2001 and granted November 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2023.
- 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.