Patents by Inventor Danny Yamashiro

Danny Yamashiro 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).

  • Combined RF/microwave amplifiers with individual power supplies
    Patent number: 9492567
    Abstract: A high power amplifier may amplify an RF or microwave input signal. The amplifier may include: an input signal divider (DIV) that has an input port for the input signal and that divides this input signal into multiple sub-input signals; multiple power amplifier units (PAUs), each having an input port for receiving one of the sub-input signals and an output port for delivering an amplified version of the received signal; multiple power supply units (PSUs), each connected to power a different one of the PAUs; and an interface control unit (ICU). The ICU may: monitor each PSU to verify that it is operating within one or more pre-determined PSU specifications; and upon detecting that a PSU is no longer operating within the one or more pre-determined PSU specification (malfunctioning PSU), set the PAU being powered by the malfunctioning PSU (online PAU in online mode) not to amplify one of the sub-input signals and not to be available for being switched to the online mode (offline mode of offline PAU).
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 15, 2016
    Assignee: DAICO INDUSTRIES, INC.
    Inventors: Ruben X. Mao, Eddie Blair, Kelvin Tubbs, Danny Yamashiro, Kevin Brock