Vibration driven actuator
CA 2088239 C · Owner: Tsukimoto, Takayuki · Inventors: Tsukimoto, Takayuki; Koreeda, Shinichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vibration driven motor or actuator includes a vibrating member for generating a vibration therein in response to an electrical signal applied thereto and a, contact member frictionally engaged with the vibrating member to be driven by the vibration. The contact member has an element for, when the contact member is driven by the vibration, causing sin and cos modes of the vibration generated in the contact member to have different natural frequencies.
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 January 27, 1993 and granted August 18, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2015.
- 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.