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Expired Canadian patentCanada

Multiple wavelength light source, and generation method for multiple wavelength light

CA 2575595 C · Owner: National Institute Of Information And Communications Technology, Incorporated Administrative Agency · Inventors: Izutsu, Masayuki; Kawanishi, Tetsuya

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Abstract From the Canadian patent

It is an object of the present invention to provide a multiple wavelength light , source capable of generating lights of more wavelengths and a generation , method for , multiple wavelength light using a multiple wavelength light source. A multiple wavelength light source of the present invention is a multiple wavelength light source having an optical comb generator for obtaining an input light , and a group of lights shifted from the input light by predetermined frequencies; and an , optical adjusting portion adjusting lights to be inputted to the optical comb generator; , wherein the optical comb generator is composed of an optical fiber loop (105) which is , provided with an …

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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 29, 2005 and granted March 22, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 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.
FiledJune 29, 2005
GrantedMarch 22, 2016
Term endedJune 29, 2025
Patent numberCA 2575595 C
Classification (IPC)G02F1/01 +2 more

Timeline

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2006200820102012201420162018202020222024Application filedJune 29, 2005Patent grantedMarch 22, 2016Term endedJune 29, 2025

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