Patents by Inventor Masakazu Tsunezawa

Masakazu Tsunezawa 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).

  • Patent number: 6249174
    Abstract: A reference voltage generator circuit (RG1) includes a voltage generator (GP) having NMOS transistors (M7, M8, M9), PMOS transistors (M10, M11, M12, M13), an inverter (G4) and a resistor (R1), and a discharge path (DP1) having NMOS transistors (M14, M15, M16). The reference voltage generator circuit is capable of reducing the transition time required for a current cell matrix type D-A converter to make a standby-state to operating-state transition.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: June 19, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Masakazu Tsunezawa