Portable light irradiation apparatus
CA 2275701 C · Owner: Nishimura, Hiroyuki · Inventors: Morita, Suehiro; Koyama, Emi; Nishimura, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable light irradiation device for providing a stimulus of light to the eyes of user is used to regulate biological rhythm and improve awakening level of the user. This device includes an elongate illumination unit for irradiating the light to the user's eyes a pair of pads adapted to , be, fitted to sides of the user's head a headband adapted to be fitted to a top of, the user's head and coupled to the pads at opposite ends thereof and a, supporting arm extending from at least one of the pads for supporting the illumination unit at the forward end thereof such that the illumination unit can be disposed in front of the eyes of the user wearing the light irradiation device. The …
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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 October 20, 1998 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2020.
- 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.