Low electric noise system
CA 2128490 C · Owner: Ishihara, Nobuyuki · Inventors: Murata, Kimitoshi; Ishihara, Nobuyuki; Marumoto, Ikuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the electrode for preventing noise electric wave according to the present invention in which the resistivity of the second layer is larger than that of the first layer it is, possible to prevent the generation of noise electric wave. In the electrode for preventing noise electric wave according to the present invention in which the layer for preventing noise electric wave has the porosity of not more than 20% it is, possible to prevent the radio noise. In the electrode for preventing noise electric wave according to the present invention in which the high-fusing conductive material layer exists between the substrate and the resisting material layer it is possible to prevent the formation …
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 July 20, 1994 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2016.
- 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.