Bead inductor and method of manufacturing same
CA 2276144 C · Owner: Murata Manufacturing Co. Ltd. · Inventors: Oshima, Hisato; Sugitani, Masami; Shikama, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for manufacturing a bead inductor includes steps of forming a molded body of a resin or a rubber including a powdered magnetic substance with a conductor, coil formed by winding a metallic wire coated for insulation embedded therein; cutting both end portions of the molded body so as to expose end portions of the conductor coil; and attaching external terminals to exposed end portions of the conductor coil so as to be electrically connected. In order to increase reliability of connection between the conductor coil and external terminals, both end portions of the conductor coil prior to the forming step are immersed into a solder bath so as to include the cutting regions of both end …
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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 22, 1999 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2021.
- 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.