Planar dielectric integrated circuit
CA 2230420 C · Owner: Sakamoto, Koichi · Inventors: Sakamoto, Koichi; Yamashita, Sadao; Kajikawa, Takehisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A planar dielectric integrated circuit is provided such that energy conversion loss between a planar dielectric line and electronic components is small and that impedance matching between them can be easily obtained. By providing slots which oppose both main surfaces of a circuit substrate two planar dielectric lines are constructed. A slot line and a first line-conversion conductor pattern which is connected to the electromagnetic field of the slot line and a first planar dielectric line in order to perform line conversion are provided at the end portion of the first planar dielectric line including a slot. A coplanar line such that a second line- conversion conductor pattern is made to …
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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 February 25, 1998 and granted September 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.