Monitoring diagnosis device for electrical appliance
CA 2073385 C · Owner: Tanaka, Hideo · Inventors: Akimoto, Yoshiakira; Tanaka, Hideo; Izui, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monitoring diagnosis device for an electrical appliance such as gas insulated switchgear includes a sensor such as an acceleration sensor, and a neural network including an input layer, an intermediate layer, and an output layer each, consisting of a plurality of neural elements coupled to the adjacent layer via a plurality of connection weights. The output of the sensor is first processed and then is supplied to the neural elements of the input layer. The connection weights are adjusted by means of learning data such that the output from the neural elements of the output layer of the neural network correctly identifies the causes of abnormality of the electrical appliance.
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 July 8, 1992 and granted May 5, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2014.
- 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.