Electrophysiological activity estimation method
CA 2227291 C · Owner: Kiyuna, Tomoharu · Inventors: Kiyuna, Tomoharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrophysiological activity estimation method is used to estimate active areas of a selected part of a living body (e.g. human brain). Based on electromagnetic field distribution measured on a surface of the selected part of the living body as well as its shape, the method assumes each equivalent current dipole as a source of electromagnetic field distribution. At first grid, points are created to cover the selected part of the living body (e.g. head). Using the pseudoinverse the method performs estimation, of dipole distribution for equivalent current dipoles. Then the, equivalent current dipoles are subjected to sorting based on a priority order. An evaluation function (e.g. …
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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 January 16, 1998 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2020.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.