Method of producing inductor
CA 2273769 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
The present invention is for providing a production method of a bead inductor capable of preventing deformation of a metal coil or dislocation of the axis position of the metal coil by the injection pressure at the time of injecting a molten resin material from a gate. A coil is fitted onto a coil supporting pin provided on a first lower mold of a mold for injection molding in a cavity of the. mold for injection molding such that the inner periphery of the coil is closely contacted with the coil supporting pin. A molten resin material is injected into the cavity. Then the coil supporting pin and the first lower mold are taken out from the molded product and a second lower mold without a …
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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 4, 1999 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 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.