Patents by Inventor Musaya Kuwana

Musaya Kuwana has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • RF POWER AMPLIFIER WITH LINEARITY CONTROL
    Publication number: 20150323964
    Abstract: A linear amplifier circuit includes a multi-stage power amplifier that can amplify an input signal to produce an output signal, and a gain feedback control circuit coupled with the output and the input of the multi-stage power amplifier. An adjacent-channel leakage feedback control circuit can detect the output signal at the output of the multi-stage power amplifier and reduce adjacent-channel leakage in the output signal over an output power range based on the detected output signal.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 12, 2015
    Inventors: Ikuroh Ichitsubo, Musaya Kuwana, Koshiro Matsumoto