Patents by Inventor Kan Nagashima

Kan Nagashima 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).

  • Non-volatile memory device, non-volatile memory control device, and non-volatile memory control method
    Patent number: 11455112
    Abstract: A non-volatile memory device includes a non-volatile memory unit, a control unit, and an interface. The control unit receives a write request, determines whether data is an object of a write of sequential management when a write size of the received data is smaller than a management unit of erasure, performs first write processing in which the received data smaller than the management unit of the erasure is sequentially written when the data is the object of the write of the sequential management, and performs second write processing in which the received data smaller than the management unit of the erasure is written by the management unit of the write when the data is not the object of the write of the sequential management.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 27, 2022
    Assignee: Sony Group Corporation
    Inventors: Hiroaki Yamazoe, Daisuke Nakajima, Toshifumi Nishiura, Kan Nagashima
  • NON-VOLATILE MEMORY DEVICE, NON-VOLATILE MEMORY CONTROL DEVICE, AND NON-VOLATILE MEMORY CONTROL METHOD
    Publication number: 20190339895
    Abstract: A non-volatile memory device includes a non-volatile memory unit, a control unit, and an interface. The control unit receives a write request, determines whether data is an object of a write of sequential management when a write size of the received data is smaller than a management unit of erasure, performs first write processing in which the received data smaller than the management unit of the erasure is sequentially written when the data is the object of the write of the sequential management, and performs second write processing in which the received data smaller than the management unit of the erasure is written by the management unit of the write when the data is not the object of the write of the sequential management.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: HIROAKI YAMAZOE, DAISUKE NAKAJIMA, TOSHIFUMI NISHIURA, KAN NAGASHIMA
  • Non-volatile memory device, non-volatile memory control device, and non-volatile memory control method
    Patent number: 10372367
    Abstract: A non-volatile memory device includes a non-volatile memory unit, a control unit, and an interface. The control unit receives a write request, determines whether data is an object of a write of sequential management when a write size of the received data is smaller than a management unit of erasure, performs first write processing in which the received data smaller than the management unit of the erasure is sequentially written when the data is the object of the write of the sequential management, and performs second write processing in which the received data smaller than the management unit of the erasure is written by the management unit of the write when the data is not the object of the write of the sequential management.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 6, 2019
    Assignee: SONY CORPORATION
    Inventors: Hiroaki Yamazoe, Daisuke Nakajima, Toshifumi Nishiura, Kan Nagashima
  • NON-VOLATILE MEMORY DEVICE, NON-VOLATILE MEMORY CONTROL DEVICE, AND NON-VOLATILE MEMORY CONTROL METHOD
    Publication number: 20150120992
    Abstract: A non-volatile memory device includes a non-volatile memory unit, a control unit, and an interface. The control unit receives a write request, determines whether data is an object of a write of sequential management when a write size of the received data is smaller than a management unit of erasure, performs first write processing in which the received data smaller than the management unit of the erasure is sequentially written when the data is the object of the write of the sequential management, and performs second write processing in which the received data smaller than the management unit of the erasure is written by the management unit of the write when the data is not the object of the write of the sequential management.
    Type: Application
    Filed: February 28, 2013
    Publication date: April 30, 2015
    Inventors: Hiroaki Yamazoe, Daisuke Nakajama, Toshifumi Nishiura, Kan Nagashima