Electronic part having non-radiative dielectric waveguide and integrated circuit using the same
CA 2256279 C · Owner: Takakuwa, Ikuo · Inventors: Saitoh, Atsushi; Taguchi, Yoshinori; Takakuwa, Ikuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A normal NRD guide is constituted in the part to be coupled with a dielectric resonator a hyper NRD guide for simply transmitting the LSM01 mode is constituted in a multipoints circulator part the normal NRD guide is constituted in a coupler part the hyper NRD guide is constituted in the mixer part and thenormal NRD guides are constituted in a dielectric line switch part and in a connection unit between components.
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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 December 17, 1998 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.