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Expired Canadian patentCanada

Method for preparing anode for solid oxide fuel cells

CA 2070907 C · Owner: Matsuzaki, Yoshio · Inventors: Matsuzaki, Yoshio

CIPO record

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Abstract From the Canadian patent

A method of manufacturing an anode for solid oxide fuel cells is disclosed whereby the dispersion of nickel particles which form the anode for the solid oxide fuel cell is ensured, coherence of the Ni or NiO particles when being annealed or when generating electricity is prevented the, adhesion of the anode to the solid electrolyte layer is good the contact resistance is reduced, and the electrode performance is improved. To form an anode on one surface of the central solid electrolyte layer, first, Ni or NiO, and a solution of an organometallic complex salt in an organic solvent from which, is obtained thin-films or minute particles of a solid electrolyte by thermal decomposition, are …

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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 June 10, 1992 and granted February 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1992
GrantedFebruary 11, 1997
Term endedJune 10, 2012
Patent numberCA 2070907 C
Classification (IPC)H01M4/88

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 10, 1992Patent grantedFeb 11, 1997Term endedJune 10, 2012

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.