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Expired Canadian patentCanada

Pin junction photovoltaic element having i-type semiconductor layercomprising non-single crystal material containing at least zn, se andh in an amount of 1 to 40 atomic %

CA 1311547 C · Owner: Fujioka, Yasushi · Inventors: Kanai, Masahiro; Fujioka, Yasushi; Arao, Kozo

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Abstract From the Canadian patent

An improved pin junction photovoltaic element which generates photoelectromotive force by the junction of a ptype semiconductor layer, an i-type semiconductor layer and an n-type semiconductor layer, characterized in that at least said i-type semiconductor layer comprises a member selected from the group consisting of a ZnSe:H deposited film containing the hydrogen atoms in an amount of 1 to 4 atomic % and crystal grain domains in a proportion of 65 to 85 vol % per unit volume and a ZnSe1-xTex:H deposited film containing the hydrogen atoms in an amount of 1 to 4 atomic % and crystal grain domains in a proportion of 65 to 85 vol % per unit volume and also containing the selenium atoms and …

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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 December 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 29, 1988
GrantedDecember 15, 1992
Term endedDecember 15, 2009
Patent numberCA 1311547 C
Classification (IPC)H01L31/06 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 29, 1988Patent grantedDec 15, 1992Term endedDec 15, 2009

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