Logic circuit using resonant-tunneling transistor
CA 1291224 C · Owner: Mori, Toshihiko · Inventors: Mori, Toshihiko; Yokoyama, Naoki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A logic circuit including: a resonant-tunneling transistor including a superlattice containing at least one quantum well layer, and a constant current source operatively connected between a base and an emitter of the transistor and supplying a constant current to said base. The transistor has a differential negativeresistance characteristic with at least one resonant point in a relationship between a current flowing in the base and a voltage between the base and emitter and, having at least two stable base current values at both sides of the resonant point on the characteristic defined by the changeable base.emitter voltage. By supplying the base.emitter voltage having an amplitude of at …
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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 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.