Light emitting diode array
CA 2015462 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Yoshida, Susumu; Nishioka, Takafumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a light emitting diode array an N-, electrode layer is extended from the bottom surface to the top surface of a semiconductor body through the side surface. PN junctions are exposed to the cleavage surface S and light is emitted therefrom. Since the N-electrode layer and P-electrode layers are located on a common surface, the LED away can be mounted on a base plate through a soldering proceed. The LED array can be used without a self-focus lens array in an electric printer for photography. - 21 -
Read the whole patent
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 April 26, 1990 and granted August 23, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2012.
- 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.