Patents by Inventor Naoto Kii

Naoto Kii 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: 11195582
    Abstract: A non-volatile memory device includes: a memory group of a plurality of variable resistance memory cells in which digital data is recorded according to a magnitude of a resistance value, the memory group including at least one data cell and at least one dummy cell which are associated with each other; and a read circuit which performs, in parallel, a read operation on each of the plurality of memory cells included in the memory group. Dummy data, for reducing a correlation between a side-channel leakage generated when the read operation is performed by the read circuit and information data recorded in the at least one data cell, is recorded in the at least one dummy cell.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: December 7, 2021
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Yuhei Yoshimoto, Yoshikazu Katoh, Naoto Kii
  • Publication number: 20200350012
    Abstract: A non-volatile memory device includes: a memory group of a plurality of variable resistance memory cells in which digital data is recorded according to a magnitude of a resistance value, the memory group including at least one data cell and at least one dummy cell which are associated with each other; and a read circuit which performs, in parallel, a read operation on each of the plurality of memory cells included in the memory group. Dummy data, for reducing a correlation between a side-channel leakage generated when the read operation is performed by the read circuit and information data recorded in the at least one data cell, is recorded in the at least one dummy cell.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: Yuhei YOSHIMOTO, Yoshikazu KATOH, Naoto KII
  • Patent number: 8315292
    Abstract: A communication apparatus according to the present invention comprises a transmitter for generating and transmitting a data signal where data is superposed as time length of a pulse interval, and a receiver for receiving the data signal. The transmitter and the receiver are connected through a single communication line. The receiver comprises: a receiver-side oscillator circuit for oscillating a reference pulse as a count reference of the data signal; a counter circuit for counting a pulse interval of the received data signal by converting it to a reference pulse number of the oscillator circuit; and a comparator circuit stores a first reference value therein, and judges data of the data signal by comparing the pulse interval of the data signal counted by the counter circuit with the first reference value.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: November 20, 2012
    Assignee: Panasonic Corporation
    Inventors: Hirofumi Wada, Naoto Kii
  • Publication number: 20060239693
    Abstract: A communication apparatus according to the present invention comprises a transmitter for generating and transmitting a data signal where data is superposed as time length of a pulse interval, and a receiver for receiving the data signal. The transmitter and the receiver are connected through a single communication line. The receiver comprises: a receiver-side oscillator circuit for oscillating a reference pulse as a count reference of the data signal; a counter circuit for counting a pulse interval of the received data signal by converting it to a reference pulse number of the oscillator circuit; and a comparator circuit stores a first reference value therein, and judges data of the data signal by comparing the pulse interval of the data signal counted by the counter circuit with the first reference value.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 26, 2006
    Inventors: Hirofumi Wada, Naoto Kii