Patents by Inventor Masakazu Hioki

Masakazu Hioki 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: 10262902
    Abstract: The multiplexer includes a plurality of transmission gates each formed by four-terminal double insulated gate N-type and P-type field effect transistors connected in parallel. One of gates of the N-type gate field effect transistor is connected to a first threshold voltage control node, and a first resistor is connected between the first threshold voltage control node and a first threshold voltage control voltage source. One of gates of the P-type gate field effect transistor is connected to a second threshold voltage control node, and a second resistor is connected between the second threshold voltage control node and a second threshold voltage control voltage source.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: April 16, 2019
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Toshihiro Sekigawa, Masakazu Hioki, Hanpei Koike
  • Publication number: 20180350690
    Abstract: A multiplexer using an FTMOST and capable of achieving both increase in transfer rate and reduction in leakage current and an integrated circuit using the multiplexer are provided. The multiplexer includes a plurality of pass transistors each formed by a four-terminal double insulated gate field effect transistor. A second gate of the field effect transistor is connected to a threshold voltage control node, and a resistor is connected between the threshold voltage control node and a threshold voltage control voltage source. Also, the multiplexer includes a plurality of transmission gates each formed by four-terminal double insulated gate N-type and P-type field effect transistors connected in parallel. One of gates of the N-type gate field effect transistor is connected to a first threshold voltage control node, and a first resistor is connected between the first threshold voltage control node and a first threshold voltage control voltage source.
    Type: Application
    Filed: September 21, 2016
    Publication date: December 6, 2018
    Inventors: Toshihiro Sekigawa, Masakazu Hioki, Hanpei Koike
  • Patent number: 8461870
    Abstract: A reconfigurable integrated circuit has non-volatile storage cells which form a plurality of programmable routing switches between basic tiles. The circuit includes a plurality of non-volatile storage cells providing a multiplexer-type programmable routing switch including a plurality of input terminals and an output terminal. The non-volatile storage cells are structured as a field effect transistor with a switch function and are placed in a propagation path of signal voltage from the input terminals to the output terminal, and the non-volatile storage cells configure the multiplexer-type programmable routing switch to selectively propagate the signal voltage from the input terminals, to provide a control circuit which directly writes conducted or non-conducted status for the non-volatile storage cells, erases the connection information, and reads to verify the conducted or non-conducted status of the non-volatile storage cells.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: June 11, 2013
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Masakazu Hioki
  • Publication number: 20110273205
    Abstract: A reconfigurable integrated circuit has non-volatile storage cells which form a plurality of programmable routing switches between basic tiles. The circuit includes a plurality of non-volatile storage cells providing a multiplexer-type programmable routing switch including a plurality of input terminals and an output terminal. The non-volatile storage cells are structured as a field effect transistor with a switch function and are placed in a propagation path of signal voltage from the input terminals to the output terminal, and the non-volatile storage cells configure the multiplexer-type programmable routing switch to selectively propagate the signal voltage from the input terminals, to provide a control circuit which directly writes conducted or non-conducted status for the non-volatile storage cells, erases the connection information, and reads to verify the conducted or non-conducted status of the non-volatile storage cells. .
    Type: Application
    Filed: October 26, 2009
    Publication date: November 10, 2011
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventor: Masakazu Hioki