Semiconductor circuit device
CA 1310375 C · Owner: Akioka, Takashi · Inventors: Watanabe, Atsuo; Nagano, Takahiro; Akioka, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system providing a drive circuit for a bipolar transistor high in speed and low in power consumption even under a low source voltage using a MOSFET is disclosed. The base current of the bipolar transistor is supplied not by shortcircuiting the collector and the base thereof by a MOSFET but from another base current source.
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
- 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.