Patents by Inventor Shinji Honjo

Shinji Honjo 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).

  • Host apparatus and expansion device adaptable to low voltage signaling
    Patent number: 10466756
    Abstract: An expansion device includes a clock swing detecting unit, a command receiving unit, and a response generating unit. The clock swing detecting unit detects a clock swing set based on a second signal voltage lower than a first signal voltage before the start of initialization. The command receiving unit receives a command having a parameter incorporated that can indicate which signal voltage of the first signal voltage and second signal voltage is being used. The response generating unit responds to the command based on the clock swing.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 5, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Akihisa Fujimoto, Hiroyuki Sakamoto, Shinji Honjo
  • Data storage device with nonvolatile memory
    Patent number: 9911502
    Abstract: According to one embodiment, a data storage device includes a controller driven by a first power supply voltage, a nonvolatile memory controlled by the controller and driven by a second power supply voltage, and a switch element determining whether the second power supply voltage is applied to the nonvolatile memory. The controller is configured to turn off the switch element in a first mode and turn on the switch element in a second mode.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: March 6, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Koichi Nagai, Katsuya Murakami, Shinji Honjo, Satoru Fukuchi, Akira Tanimoto, Isao Ozawa
  • DATA STORAGE DEVICE
    Publication number: 20170278576
    Abstract: According to one embodiment, a data storage device includes a controller driven by a first power supply voltage, a nonvolatile memory controlled by the controller and driven by a second power supply voltage, and a switch element determining whether the second power supply voltage is applied to the nonvolatile memory. The controller is configured to turn off the switch element in a first mode and turn on the switch element in a second mode.
    Type: Application
    Filed: June 14, 2017
    Publication date: September 28, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Koichi NAGAI, Katsuya MURAKAMI, Shinji HONJO, Satoru FUKUCHI, Akira TANIMOTO, lsao OZAWA
  • Data storage device including nonvolatile memory in which on/off state of power source voltage is controlled
    Patent number: 9704593
    Abstract: According to one embodiment, a data storage device includes a controller driven by a first power supply voltage, a nonvolatile memory controlled by the controller and driven by a second power supply voltage, and a switch element determining whether the second power supply voltage is applied to the nonvolatile memory. The controller is configured to turn off the switch element in a first mode and turn on the switch element in a second mode.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: July 11, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koichi Nagai, Katsuya Murakami, Shinji Honjo, Satoru Fukuchi, Akira Tanimoto, Isao Ozawa
  • HOST APPARATUS AND EXPANSION DEVICE
    Publication number: 20170192475
    Abstract: An expansion device includes a clock swing detecting unit, a command receiving unit, and a response generating unit. The clock swing detecting unit detects a clock swing set based on a second signal voltage lower than a first signal voltage before the start of initialization. The command receiving unit receives a command having a parameter incorporated that can indicate which signal voltage of the first signal voltage and second signal voltage is being used. The response generating unit responds to the command based on the clock swing.
    Type: Application
    Filed: April 14, 2015
    Publication date: July 6, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Akihisa FUJIMOTO, Hiroyuki SAKAMOTO, Shinji HONJO
  • DATA STORAGE DEVICE
    Publication number: 20160125950
    Abstract: According to one embodiment, a data storage device includes a controller driven by a first power supply voltage, a nonvolatile memory controlled by the controller and driven by a second power supply voltage, and a switch element determining whether the second power supply voltage is applied to the nonvolatile memory. The controller is configured to turn off the switch element in a first mode and turn on the switch element in a second mode.
    Type: Application
    Filed: March 9, 2015
    Publication date: May 5, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Koichi NAGAI, Katsuya Murakami, Shinji Honjo, Satoru Fukuchi, Akira Tanimoto, Isao Ozawa