Microwave oscillator
CA 1210461 A · Owner: Nec Corporation · Inventors: Mizumura, Motoo; Wada, Kenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substrate made of a material having a high dielectric constant is mounted on a bottom internal surface of a hermetically sealed metal package, while carrying thereon a microwave active element chip and a dielectric resonator. A threaded hole extends throughout the bottom wall of the package from the outside to the inside in alignment with the position of the dielectric resonator on the substate. A metal screw is engaged in the threaded hole from outside the package. The screw may be turned to vary the distance between it and the dielectric resonator to adjust the oscillation frequency.
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
- Granted August 26, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2003.
- 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.