Patents by Inventor Zaman Iqbal Kazi

Zaman Iqbal Kazi 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).

  • Amplifier circuit
    Patent number: 7525387
    Abstract: An amplifier circuit includes a first bipolar transistor of which the emitter is connected to the ground, and a bias circuit of the first bipolar transistor. The bias circuit includes a second bipolar transistor constituting a current mirror circuit along with the first bipolar transistor, a first resistor connected to the bases of the first bipolar transistor and the second bipolar transistor, and a third bipolar transistor of which the emitter is connected to the bases of the first bipolar transistor and the second bipolar transistor through the first resistor, and of which the base is connected to the collector of the second bipolar transistor. The first bipolar transistor amplifies a signal input to the base thereof and then outputs the amplified signal from the collector of the first bipolar transistor.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 28, 2009
    Assignee: Panasonic Corporation
    Inventors: Zaman Iqbal Kazi, Junji Ito, Toshihiro Shogaki