Reactance circuit
CA 1289619 C · Owner: Yamagishi, Mikio · Inventors: Ishiguro, Kazuhisa; Yamagishi, Mikio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reactance circuit comprises a differential amplification circuit formed by differentially connecting the first and second transistors to each other a load connected, to a collector of the first transistor a reactance element, interposed between a base of the first transistor and a reference potential point, and a capacitor and a resistor connected in series between the collector and the base of the first transistor. A negative feedback loop to the first transistor is formed by the capacitor and the resistor. Accordingly when the collector of the first transistor is used as an output terminal, a negative equivalent reactance is produced in the output terminal.
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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.