Patents by Inventor Masayuki Korikawa

Masayuki Korikawa 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: 10932390
    Abstract: An immersion tank includes a tank main body configured to store a coolant, at least one first air bag that is provided in the tank main body, that is coupled to a bottom portion of the tank main body, that is able to be inflated toward an upper portion of the tank main body, and that is able to be deflated, from an inflated state thereof, toward the bottom portion, and a guide member that is provided outside the at least one first air bag in the tank main body and that is configured to guide the at least one first air bag during the inflation and the deflation of the at least one first air bag.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: February 23, 2021
    Assignee: FUJITSU LIMITED
    Inventor: Masayuki Korikawa
  • Publication number: 20200281093
    Abstract: An immersion tank includes a tank main body configured to store a coolant, at least one first air bag that is provided in the tank main body, that is coupled to a bottom portion of the tank main body, that is able to be inflated toward an upper portion of the tank main body, and that is able to be deflated, from an inflated state thereof, toward the bottom portion, and a guide member that is provided outside the at least one first air bag in the tank main body and that is configured to guide the at least one first air bag during the inflation and the deflation of the at least one first air bag.
    Type: Application
    Filed: February 7, 2020
    Publication date: September 3, 2020
    Applicant: FUJITSU LIMITED
    Inventor: MASAYUKI KORIKAWA
  • Patent number: 9591783
    Abstract: A rack-mounted electronic device, which is mounted in a rack, includes a housing; a first aperture formed on a first surface of the housing; a first connector configured to protrude from the first aperture; a second aperture formed on a second surface which faces the first surface in the housing; and a second connector arranged in the second aperture.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 7, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Masayuki Korikawa
  • Publication number: 20160135321
    Abstract: A rack-mounted electronic device, which is mounted in a rack, includes a housing; a first aperture formed on a first surface of the housing; a first connector configured to protrude from the first aperture; a second aperture formed on a second surface which faces the first surface in the housing; and a second connector arranged in the second aperture.
    Type: Application
    Filed: September 3, 2015
    Publication date: May 12, 2016
    Inventor: Masayuki KORIKAWA
  • Patent number: 9084374
    Abstract: An electronic device includes: a plurality of slots where a plurality of electronic instruments are mountable; and an electronic instrument inserted in any of the plurality of slots; wherein the electronic instrument includes a flow rate limiting member that protrudes to a side of an adjacent slot where no electronic instrument is mounted and limits a flow rate of cooling air flowing through the adjacent slot.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: July 14, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Masayuki Korikawa
  • Patent number: 8608258
    Abstract: A cabinet rack for housing a piece of electronic equipment secured to a mounting member, the cabinet rack includes a plurality of vertically extending support posts; a first supporting member secured to one of the support posts, the first supporting member including a guide vertically extending along the one of the support posts, the guide with the one of the support posts forming a guide groove therebetween; a second supporting member including a fixing portion for fixing the mounting member, and a slider portion provided in the guide groove so as to slide along the guide to a mounting position in the cabinet rack; and a third supporting member including a pressing portion provided between the slider portion and the one of the support posts to secure the second supporting member to the first supporting member by pressing the slider portion against the guide.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: December 17, 2013
    Assignee: Fujitsu Limited
    Inventor: Masayuki Korikawa
  • Publication number: 20110221314
    Abstract: A cabinet rack for housing a piece of electronic equipment secured to a mounting member, the cabinet rack includes a plurality of vertically extending support posts; a first supporting member secured to one of the support posts, the first supporting member including a guide vertically extending along the one of the support posts, the guide with the one of the support posts forming a guide groove therebetween; a second supporting member including a fixing portion for fixing the mounting member, and a slider portion provided in the guide groove so as to slide along the guide to a mounting position in the cabinet rack; and a third supporting member including a pressing portion provided between the slider portion and the one of the support posts to secure the second supporting member to the first supporting member by pressing the slider portion against the guide.
    Type: Application
    Filed: February 8, 2011
    Publication date: September 15, 2011
    Applicant: FUJITSU LIMITED
    Inventor: Masayuki Korikawa
  • Patent number: 7644420
    Abstract: In an electronic unit loading mechanism, an electronic unit is attachable to or detachable from an electronic unit loading base which is retractable to a housing. The electronic unit loading mechanism comprises a main part fixed to the loading base and a holding part holding the electronic unit. The holding part is vertically movable to the main part between a taken-out position and a loaded position, wherein the holding part at the taken-out position is taken out from the main part so that the electronic unit is attached to or detached from the loading base, and the holding part at the loaded position is contained in the main part so that the electronic unit is loaded to the loading base.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: January 5, 2010
    Assignee: Fujitsu Limited
    Inventor: Masayuki Korikawa
  • Publication number: 20060130085
    Abstract: In an electronic unit loading mechanism, an electronic unit is attachable to or detachable from an electronic unit loading base which is retractable to a housing. The electronic unit loading mechanism comprises a main part fixed to the loading base and a holding part holding the electronic unit. The holding part is vertically movable to the main part between a taken-out position and a loaded position, wherein the holding part at the taken-out position is taken out from the main part so that the electronic unit is attached to or detached from the loading base, and the holding part at the loaded position is contained in the main part so that the electronic unit is loaded to the loading base.
    Type: Application
    Filed: March 15, 2005
    Publication date: June 15, 2006
    Applicant: FUJITSU LIMITED
    Inventor: Masayuki Korikawa
  • Patent number: 6952341
    Abstract: A disk array apparatus includes an enclosure having an opening at its front face, at least one module configured to be mounted in the enclosure and at least one securing mechanism configured to secure the at least one module to the enclosure. The module includes a frame member and a lever member that is movable between a first position received by the frame member in which it serves as a cover of the opening and a second position in which it serves as a grip part for pulling the module out of the enclosure.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: October 4, 2005
    Assignee: Fujitsu Limited
    Inventors: Hiroshi Hidaka, Takashi Yamamoto, Masayuki Korikawa, Katsuhisa Katano
  • Publication number: 20040012921
    Abstract: A disk array apparatus includes an enclosure having an opening at its front face, at least one module configured to be mounted in the enclosure and at least one securing mechanism configured to secure the at least one module to the enclosure. The module includes a frame member and a lever member that is movable between a first position received by the frame member in which it serves as a cover of the opening and a second position in which it serves as a grip part for pulling the module out of the enclosure.
    Type: Application
    Filed: December 4, 2002
    Publication date: January 22, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi Hidaka, Takashi Yamamoto, Masayuki Korikawa, Katsuhisa Katano
  • Patent number: 6094725
    Abstract: A magnetic disk apparatus includes at least two systems, each system having at least one power unit and at least one battery unit ancillary to the power unit. The disk apparatus also includes at least one common power unit having a pluralities of batteries attached thereto connected in common with the two systems. Patrol control means (PC) is operatively connected to a power control unit (0) of one system and a power control unit (1) of another system for giving a control signal during a battery monitoring operation and a priority order to the battery monitoring operation. The patrol control means monitors the function of the common batteries attached to the common power unit and, further, when the common batteries are incorporated in the magnetic disk apparatus, controls the simultaneous monitoring of the common batteries and the time of incorporation of the common batteries into the magnetic disk apparatus.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: July 25, 2000
    Assignee: Fujitsu Limited
    Inventors: Yutaka Hiyoshi, Hiroyuki Tanaka, Takao Hakamatani, Masayuki Korikawa, Hiroshi Tsurumi, Tetsuro Kudo, Yuiti Ogawa
  • Patent number: 5675816
    Abstract: A magnetic disk apparatus which is used as a subsystem of a computer system, in particular a medium-sized computer system which uses commercial power and does not have its own backup power, provided with a plurality of directors (118), a plurality of magnetic disk modules (148) commonly accessed from the plurality of directors, a plurality of director batteries (114-m) for supplying power individually to the plurality of directors, magnetic disk module batteries (114-n) for supplying power to the magnetic disk modules, and a power controller (110) for independently controlling the supply of power from the plurality of director batteries and magnetic disk module batteries in accordance with the operating state of the plurality of directors and magnetic disk modules. (FIG. 1).
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: October 7, 1997
    Assignee: Fujitsu Limited
    Inventors: Yutaka Hiyoshi, Hiroyuki Tanaka, Takao Hakamatani, Masayuki Korikawa, Hiroshi Tsurumi, Tetsuro Kudo, Yuiti Ogawa
  • Patent number: 5570269
    Abstract: A magnetic disk module adapted to be inserted in a data storing device body which is in use. The module includes two sets of disk drive units and printed wiring boards in one housing so that are disk drive unit or printed wiring board can be easily attached or detached in one set while the other set is in an operating state. The module includes a first connector attached to the disk drive unit, a second connector attached to the printed wiring board, a third connector at the rear end of the housing for plug-in connection to a connector of a data storing device body, a fourth connector arranged in the housing for plug-in connection to the first connector, and a fifth connector arranged in the housing for plug-in connection to the second connector.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: October 29, 1996
    Assignee: Fujitsu Limited
    Inventors: Masayuki Korikawa, Toru Shinohara, Masahito Iwatsubo, Saori Yokoyama, Hideki Ohmori, Takasi Watanabe, Tsuneo Ohsugi