Patents by Inventor Ryo Nagoshi

Ryo Nagoshi 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).

  • Apparatuses and methods for multiple row hammer refresh address sequences
    Patent number: 11694738
    Abstract: Apparatuses and methods for generating multiple row hammer address refresh sequences. An example apparatus may include an address scrambler and a refresh control circuit. The address scrambler may receive a first address, output a second address in response to a first control signal, and output a third address in response to a second control signal. The second address may physically adjacent to the first address and the third address may physically adjacent to the second address. The refresh control circuit may perform a refresh operation on the second address when the first control signal is active and perform the refresh operation on the third address when the second control signal is active.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: July 4, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Masaru Morohashi, Ryo Nagoshi, Yuan He, Yutaka Ito
  • APPARATUSES AND METHODS FOR MULTIPLE ROW HAMMER REFRESH ADDRESS SEQUENCES
    Publication number: 20210350844
    Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for generating multiple row hammer address refresh sequences. An example apparatus may include an address scrambler and a refresh control circuit. The address scrambler may receive a first address, output a second address in response to a first control signal, and output a third address in response to a second control signal. The second address may physically adjacent to the first address and the third address may physically adjacent to the second address. The refresh control circuit may perform a refresh operation on the second address when the first control signal is active and perform the refresh operation on the third address when the second control signal is active.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Masaru Morohashi, Ryo Nagoshi, Yuan He, Yutaka Ito
  • Apparatuses and methods for multiple row hammer refresh address sequences
    Patent number: 11152050
    Abstract: Apparatuses and methods for generating multiple row hammer address refresh sequences. An example apparatus may include an address scrambler and a refresh control circuit. The address scrambler may receive a first address, output a second address in response to a first control signal, and output a third address in response to a second control signal. The second address may physically adjacent to the first address and the third address may physically adjacent to the second address. The refresh control circuit may perform a refresh operation on the second address when the first control signal is active and perform the refresh operation on the third address when the second control signal is active.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: October 19, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Masaru Morohashi, Ryo Nagoshi, Yuan He, Yutaka Ito
  • APPARATUSES AND METHODS FOR MULTIPLE ROW HAMMER REFRESH ADDRESS SEQUENCES
    Publication number: 20190385667
    Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for generating multiple row hammer address refresh sequences. An example apparatus may include an address scrambler and a refresh control circuit. The address scrambler may receive a first address, output a second address in response to a first control signal, and output a third address in response to a second control signal. The second address may physically adjacent to the first address and the third address may physically adjacent to the second address. The refresh control circuit may perform a refresh operation on the second address when the first control signal is active and perform the refresh operation on the third address when the second control signal is active.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 19, 2019
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Masaru Morohashi, Ryo Nagoshi, Yuan He, Yutaka Ito