Alternating current voltage regulator
CA 1282827 C · Owner: Harada, Kosuke · Inventors: Nakamizo, Takazi; Harada, Kosuke; Chen, Cheng-Jen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An AC voltage regulator includes an output voltage sensing and regulating device having a suitable filter characteristics to attenuate AC components in the frequency zone of about several cycles corresponding to the almost periodic oscillations or abnormal oscillations or high frequency components of distorted waves which appear in an AC output voltage and are causes for the abnormal oscillations. The AC voltage regulator does not need to use a dummy load to suppress the almost periodic oscillation even when the load is extremely low. The output voltage of the AC voltage regulator is free from abnormal oscillation components such as the almost periodic oscillation and infralow frequency …
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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 April 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 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.