Patents by Inventor Yoshiya Komatsu

Yoshiya Komatsu 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: 11967358
    Abstract: Apparatuses, systems, and methods for bias temperature instability (BTI) mitigation. A BTI oscillator provides a periodic BTI signal. A BTI logic circuit generates a BTI pulse signal based on the periodic BTI signal and synchronized to a clock signal. A clock gating circuit passes the clock signal to a clock path when the periodic BTI signal is active. When the memory is in an unclocked mode, where an external clock is not received, the periodic BTI signal is provided to a clock input buffer and passed as the clock signal.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: April 23, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Yoshiya Komatsu, Yutaka Uemura
  • Publication number: 20230386555
    Abstract: Apparatuses, systems, and methods for bias temperature instability (BTI) mitigation. A BTI oscillator provides a periodic BTI signal. A BTI logic circuit generates a BTI pulse signal based on the periodic BTI signal and synchronized to a clock signal. A clock gating circuit passes the clock signal to a clock path when the periodic BTI signal is active. When the memory is in an unclocked mode, where an external clock is not received, the periodic BTI signal is provided to a clock input buffer and passed as the clock signal.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: YOSHIYA KOMATSU, YUTAKA UEMURA
  • Publication number: 20230386529
    Abstract: In some examples, command decoders may have multiple command paths. In some examples, command signals from one command path may be provided to another command path from a node located between two latches of the command decoder, such as two latches of a flip-flop. In some examples, the command decoder may include separate flip-flops for different command modes. In some examples, the separate flip-flops may be tristate flip-flops. In some examples, the command decoder may include alternate logic circuits rather than a multiplexer.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 30, 2023
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: YUTAKA UEMURA, YOSHIYA KOMATSU
  • Publication number: 20230386530
    Abstract: In some examples, command decoders may have multiple command paths. In some examples, command signals from one command path may be provided to another command path from a node located between two latches of the command decoder, such as two latches of a flip-flop. In some examples, the command decoder may include separate flip-flops for different command modes. In some examples, the separate flip-flops may be tristate flip-flops. In some examples, the command decoder may include alternate logic circuits rather than a multiplexer.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 30, 2023
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: YUTAKA UEMURA, YOSHIYA KOMATSU
  • Patent number: 10636463
    Abstract: An apparatus, such as a memory device, that includes circuits and techniques to synchronize various internal signals with an internal clock signal to ensure proper functionality of the memory device through various modes of operation. A clock enable control circuit is provided to control the input of a delay locked loop circuit to provide a locked condition based on a particular type of command input and the state of various control signals to allow for multiple locking conditions and adjustments based on a length of a clock cycle of the internal clock signal.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 28, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Yoshiya Komatsu, Kazutaka Miyano, Atsuko Momma
  • Publication number: 20190272862
    Abstract: An apparatus, such as a memory device, that includes circuits and techniques to synchronize various internal signals with an internal clock signal to ensure proper functionality of the memory device through various modes of operation. A clock enable control circuit is provided to control the input of a delay locked loop circuit to provide a locked condition based on a particular type of command input and the state of various control signals to allow for multiple locking conditions and adjustments based on a length of a clock cycle of the internal clock signal.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 5, 2019
    Inventors: Yoshiya Komatsu, Kazutaka Miyano, Atsuko Momma
  • Patent number: 10403340
    Abstract: An apparatus, such as a memory device, that includes circuits and techniques to synchronize various internal signals with an internal clock signal to ensure proper functionality of the memory device through various modes of operation. A clock enable control circuit is provided to control the input of a delay locked loop circuit to provide a locked condition based on a particular type of command input and the state of various control signals to allow for multiple locking conditions and adjustments based on a length of a clock cycle of the internal clock signal.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 3, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Yoshiya Komatsu, Kazutaka Miyano, Atsuko Momma
  • Publication number: 20190244644
    Abstract: An apparatus, such as a memory device, that includes circuits and techniques to synchronize various internal signals with an internal clock signal to ensure proper functionality of the memory device through various modes of operation. A clock enable control circuit is provided to control the input of a delay locked loop circuit to provide a locked condition based on a particular type of command input and the state of various control signals to allow for multiple locking conditions and adjustments based on a length of a clock cycle of the internal clock signal.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 8, 2019
    Inventors: Yoshiya Komatsu, Kazutaka Miyano, Atsuko Momma