Vibrating gyroscope
CA 2182823 C · Owner: Murata Manufacturing Co. Ltd. · Inventors: Yamamoto, Shigeto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vibrating gyroscope having a vibratable body in the form of a triangular prism piezoelectric elements formed on side surfaces of the vibrating body and having the same vibration characteristics and a detection circuit having two input terminals connected to two of the piezoelectric elements to detect thedifference between the outputs from the two piezo electric elements the two detection piezoelectric elements being selected such that the difference betweentheir outputs with respect to a change in ambient at mosphere temperature is the smallest.
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 August 7, 1996 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 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.