Patents by Inventor Jun-ichirou Ishii

Jun-ichirou Ishii 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).

  • Differential amplifier, and data driver of display device using the same
    Patent number: 7342449
    Abstract: Disclosed is a Rail-to-Rail amplifier including a plurality of differential pairs of a first conductivity type and a plurality of differential amplifiers of a second conductivity type each with one of an input pair thereof constituting an input terminal, a differential amplifier that outputs an output voltage according to the range of provided supply voltage, a determination unit for determining whether to stop operations of the differential pairs of the first conductivity type or the second conductivity type according to a predetermined input signal, and a differential pair control unit for stopping the operations of the differential pairs of the first conductivity type or the second conductivity type according to the output signal of the determination unit.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: March 11, 2008
    Assignee: NEC Corporation
    Inventors: Jun-ichirou Ishii, Hiroshi Tsuchi
  • Differential amplifier, and data driver of display device using the same
    Publication number: 20060028274
    Abstract: Disclosed is a Rail-to-Rail amplifier including a plurality of differential pairs of a first conductivity type and a plurality of differential amplifiers of a second conductivity type each with one of an input pair thereof constituting an input terminal, a differential amplifier that outputs an output voltage according to the range of provided supply voltage, a determination unit for determining whether to stop operations of the differential pairs of the first conductivity type or the second conductivity type according to a predetermined input signal, and a differential pair control unit for stopping the operations of the differential pairs of the first conductivity type or the second conductivity type according to the output signal of the determination unit.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 9, 2006
    Applicant: NEC Corporation
    Inventors: Jun-ichirou Ishii, Hiroshi Tsuchi