Electromagnetic radiation measuring apparatus for high frequency analysis of radiation produced by a circuit board
CA 2189155 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Saito, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An EM radiation measuring apparatus comprises: an antenna element matrix (20) on a substrate including 1st to Lth arrays (4) which are successively arranged in X direction, each of the 1st to Lth arrays including antenna elements arranged in Y direction and having an output terminal (7), each antenna element receiving an EM radiation from a target and generating a detection signal; a signal selector (5, 3, 2, 7) responsive to X and Y selection signals for selectively supplying the detection signal from one of antenna elements to one of the output terminals (7); 1st to Nth signal outputting ckts each, having inputs, at least an output and at least a signal, selection ckt selectively coupling …
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 October 29, 1996 and granted August 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2018.
- 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.