Patents by Inventor Nakatani Keigo

Nakatani Keigo 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).

  • Ring oscillator for temperature sensor, temperature sensor circuit, and semiconductor device having the same
    Publication number: 20090096495
    Abstract: A ring oscillator includes an odd number of unit circuits connected in series each of which includes an inverter. Each of the unit circuits includes the inverter and a MOSFET. The MOSFET is an FET which is a temperature sensor, and uses a drain-source leakage current in a state that the FET is normally turned off.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 16, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Nakatani Keigo