Patents by Inventor Takanobu Komaki

Takanobu Komaki 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).

  • Power supply unit and portable apparatus utilizing the same
    Patent number: 7466111
    Abstract: An input source voltage is supplied from a battery for example to a switching power supply circuit such as a switching DC-DC converter via a series regulator for stepping down the input source voltage by a constant voltage. The series regulator serves as a buffer having a variable resistance to reduce the switching noise generated by the switching power supply circuit, thereby reducing the switching noise in the input source voltage and in turn reducing adverse influence of the noise on other circuit blocks that operate at the input source voltage.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: December 16, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Takanobu Komaki
  • Power supply unit and portable apparatus utilizing the same
    Publication number: 20050151521
    Abstract: An input source voltage is supplied from a battery for example to a switching power supply circuit such as a switching DC-DC converter via a series regulator for stepping down the input source voltage by a constant voltage. The series regulator serves as a buffer having a variable resistance to reduce the switching noise generated by the switching power supply circuit, thereby reducing the switching noise in the input source voltage and in turn reducing adverse influence of the noise on other circuit blocks that operate at the input source voltage.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 14, 2005
    Inventor: Takanobu Komaki