Patents by Inventor Keiichi Nakai

Keiichi Nakai 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: 9418014
    Abstract: A storage control device configured to control a storage device includes a first disk which is in active state and a second disk which is in standby state. The storage control device includes a communication unit and a control unit. The communication unit transmits a read-out request or a write request to the storage device and receives a response to the read-out request or the write request from the storage device. The control unit controls the communication unit so that the communication unit transmits a rotation start command which instructs a start of rotation of the second disk to the storage device, when a time to the point when receiving the response to the read-out request or the write request transmitted to the first disk which is in active state is longer than a predetermined threshold.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 16, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Kazunori Kobashi, Hiroshi Murayama, Minoru Maeda, Toshihide Yanagawa, Keiichi Nakai
  • Publication number: 20140052910
    Abstract: A storage control device configured to control a storage device includes a first disk which is in active state and a second disk which is in standby state. The storage control device includes a communication unit and a control unit. The communication unit transmits a read-out request or a write request to the storage device and receives a response to the read-out request or the write request from the storage device. The control unit controls the communication unit so that the communication unit transmits a rotation start command which instructs a start of rotation of the second disk to the storage device, when a time to the point when receiving the response to the read-out request or the write request transmitted to the first disk which is in active state is longer than a predetermined threshold.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 20, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Kazunori Kobashi, Hiroshi Murayama, Minoru MAEDA, Toshihide YANAGAWA, Keiichi NAKAI
  • Patent number: D352741
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: November 22, 1994
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Patent number: D372690
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: August 13, 1996
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Patent number: D378105
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: February 18, 1997
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Patent number: D391201
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: February 24, 1998
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai
  • Patent number: D430823
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: September 12, 2000
    Assignee: Plus One Co., Ltd.
    Inventor: Keiichi Nakai