Magnetic field sensor and system for measuring a magnetic field
CA 2291406 C · Owner: Arai, Ken-Ichi · Inventors: Arai, Ken-Ichi; Tamaki, Naoya; Masuda, Norio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetic field sensor comprises a first conductor a first insulating film, a second conductor a second, insulating film and a third conductor. The first conductor is composed of a "C-shaped" portion, which is formed in a Clike shape, and a linear portion, which is connected to one side of the "C-shaped" portion which is opposite to a gap of the "C-shaped" portion. The first insulating film is formed on the first conductor and has a hole in a predetermined position. The second conductor is formed in a ladle-like shape, and is formed on the first insulating film such that its one side (corresponding to the front end of the ladle) overlaps with a straight line through the outer edges of both …
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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 2, 1999 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2021.
- 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.