Mixed metal hydroxides and their preparation and use
CA 2518850 C · Owner: Toda Kogyo Corp. · Inventors: Siddiqui, Shuja; Hori, Hirofumi; Wiezoreck, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pulverulent mixed metal hydroxide comprising the metals nickel cobalt and aluminium, wherein the powder particles have a core of nickel/cobalt hydroxide the surface of which is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides by precipitation of aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. Use of the mixed metal hydroxides for the preparation of active materials for positive electrodes of a secondary battery.
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 September 12, 2005 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.