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Expired Canadian patentCanada

Amorphous soft magnetic thin film

CA 1265360 C · Owner: Kawabata, Kazuko · Inventors: Hayakawa, Kiyonori; Tsuruoka, Makoto; Kawabata, Kazuko

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Overview

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Abstract From the Canadian patent

An improved alloy used in the form of an amorphous soft magnetic thin film having a desirable combination of saturation magnetic flux density and saturation magnetostriction constant the alloy having the compositional formula: CoxZryPdz, wherein:, 0.85 ? x ? 0.94, 0.04 ? y ? 0.07 0.01 ? z ? 0.10

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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

  • Granted February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 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.
FiledFebruary 13, 1986
GrantedFebruary 6, 1990
Term endedFebruary 6, 2007
Patent numberCA 1265360 C
Classification (IPC)H01F1/16 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedFeb 13, 1986Patent grantedFeb 6, 1990Term endedFeb 6, 2007

Sources & verification

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