Patents by Inventor Yasuhiro Sugano

Yasuhiro Sugano 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).

  • Tuner circuit
    Patent number: 7672651
    Abstract: A high frequency signal selected via a pre-filter is inputted to first and second frequency conversion circuits together with a local oscillation signal. The first and second frequency conversion circuits each output a difference frequency component between both input signals. An output signal of the first frequency conversion circuit is inputted to an intermediate frequency filter while an output of the intermediate frequency filter is inputted to an amplifier. An output signal of the first frequency conversion circuit is inputted to an amplifier. The amplifier selects and amplifies any one of an intermediate frequency signal outputted from the intermediate frequency signal and an output signal of the second frequency conversion circuit, and thereafter, output it.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 2, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroya Itoh, Yasuhiro Sugano
  • Tuner circuit
    Publication number: 20060285022
    Abstract: A high frequency signal selected via a pre-filter is inputted to first and second frequency conversion circuits together with a local oscillation signal. The first and second frequency conversion circuits each output a difference frequency component between both input signals. An output signal of the first frequency conversion circuit is inputted to an intermediate frequency filter while an output of the intermediate frequency filter is inputted to an amplifier. An output signal of the first frequency conversion circuit is inputted to an amplifier. The amplifier selects and amplifies any one of an intermediate frequency signal outputted from the intermediate frequency signal and an output signal of the second frequency conversion circuit, and thereafter, output it.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 21, 2006
    Inventors: Hiroya Itoh, Yasuhiro Sugano
  • Fire detector
    Patent number: D433644
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: November 14, 2000
    Assignee: Nittan Company, Limited
    Inventors: Kazuyoshi Sakurai, Seiji Tsubouchi, Ryuichi Yamazaki, Yasuhiro Sugano