Patents by Inventor Katsuki Matsunaga

Katsuki Matsunaga 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).

  • Publication number: 20240157617
    Abstract: A control device includes: an injection control unit that controls, in a pressure holding process of controlling a pressure acting on a molding material from an injection member, an injection drive source based on a set value of the pressure and an actual value of the pressure. The injection control unit performs pressure reduction control to gradually reduce the actual value of the pressure with respect to the set value of the pressure from a middle of a k-th stage (k is an integer of 1 or more and n or less). The control device includes a ratio setting unit that sets a time ratio Tr(k) in the k-th stage and a pressure ratio ?Pr(k) in the k-th stage based on a set value P(k) of the pressure in the k-th stage, a set value T(k) of a holding time in the k-th stage, and information stored in advance.
    Type: Application
    Filed: October 8, 2023
    Publication date: May 16, 2024
    Inventors: Takuya MATSUNAGA, Keisuke TOMIMATSU, Katsuki FUJITA, Shun SHIBUYA, Xiangyu CHU
  • Patent number: 9713283
    Abstract: An electronic apparatus includes a housing that includes an air inlet, and an air-intake duct section provided to supply air to the air inlet, and a filter housing that houses a filter provided to cover the air inlet, and moves toward the air-intake duct section in a thickness direction of the filter housing, to shift from a closed state in which the filter covers the air inlet to an open state in which the air inlet is uncovered.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: July 18, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yusuke Kira, Katsuki Matsunaga, Kazuhiro Iino, Kouichi Kuramitsu, Takashi Shirakami, Seiichiro Sato, Marco Scifoni
  • Publication number: 20150373875
    Abstract: An electronic apparatus includes a housing that includes an air inlet, and an air-intake duct section provided to supply air to the air inlet, and a filter housing that houses a filter provided to cover the air inlet, and moves toward the air-intake duct section in a thickness direction of the filter housing, to shift from a closed state in which the filter covers the air inlet to an open state in which the air inlet is uncovered.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 24, 2015
    Applicant: Fujitsu Limited
    Inventors: Yusuke KIRA, Katsuki MATSUNAGA, Kazuhiro IINO, Kouichi KURAMITSU, Takashi SHIRAKAMI, Seiichiro SATO, Marco Scifoni
  • Patent number: 7310474
    Abstract: A unit installed in electronic equipment includes a connector configured to connect a transmission line of the electronic equipment, and an access plate where a plurality of the connectors are provided. The access plate is slide-able against the electronic equipment.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: December 18, 2007
    Assignee: Fujitsu Limited
    Inventors: Katsumi Kanasaki, Katsuki Matsunaga, Seiichiro Sato, Tomoyuki Hongoh
  • Publication number: 20050105879
    Abstract: A unit installed in electronic equipment includes a connector configured to connect a transmission line of the electronic equipment, and an access plate where a plurality of the connectors are provided. The access plate is slide-able against the electronic equipment.
    Type: Application
    Filed: December 7, 2004
    Publication date: May 19, 2005
    Inventors: Katsumi Kanasaki, Katsuki Matsunaga, Seiichiro Sato, Tomoyuki Hongoh
  • Patent number: 6731851
    Abstract: The present invention relates to a shelf unit including a shelf having a box-like shape with an open front face and a plurality of modules having guide rails, the guide rail being engageable with a guide rail of a neighboring module. The module is inserted into the shelf through the open front face such that the guide rail slide along the guide rail of the neighboring module. The module is connected to the neighboring module with the guide rail being engaged with the guide rail of the neighboring guide rail.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: May 4, 2004
    Assignee: Fujitsu Limited
    Inventors: Seiichiro Sato, Katsuki Matsunaga, Katsumi Kanasaki, Tomoyuki Hongoh
  • Publication number: 20030047524
    Abstract: The present invention relates to a shelf unit including a shelf having a box-like shape with an open front face and a plurality of modules having guide rails, the guide rail being engageable with a guide rail of a neighboring module. The module is inserted into the shelf through the open front face such that the guide rail slide along the guide rail of the neighboring module. The module is connected to the neighboring module with the guide rail being engaged with the guide rail of the neighboring guide rail.
    Type: Application
    Filed: January 23, 2002
    Publication date: March 13, 2003
    Inventors: Seiichiro Sato, Katsuki Matsunaga, Katsumi Kanasaki, Tomoyuki Hongoh
  • Patent number: 6091876
    Abstract: The extra length accommodation structure for the optical fiber includes a base and first and second winding drums pivotably supported to the base. Each of the first and second winding drums is pivotable between a position where it is positioned over the base and another position where it is partially projected from the base. The first winding drum is pivotably supported through a first support member to the base, and the second winding drum is pivotably supported through a second support member to the base.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: July 18, 2000
    Assignee: Fujitsu Limited
    Inventors: Hidehiko Hizuka, Shin Watanabe, Katsumi Kanasaki, Katsuki Matsunaga, Takayuki Sakuma
  • Patent number: 5375652
    Abstract: A heat radiating apparatus for a semiconductor device, in which said semiconductor device mounted on a circuit board is cooled by a radiator. The radiator is provided with a stepped portion, and fixing spring hardware having slit grooves is provided with a notch engaging with the stepped portion, so that the end of radiator is brought into contact with the outer surface of the semiconductor device when the stepped portion of the radiator engages with the notch portion of the fixing spring hardware. The stepped portion of the radiator is constituted of two stages, and the notch of the fixing spring hardware is provided with two notch portions engaging with the two-stage stepped portions of the radiator, respectively, so that the larger-diameter portion of the two-stage stepped portions of the radiator engages with the farthermost portion of the notch.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: December 27, 1994
    Assignee: Fujitsu Limited
    Inventors: Katsuki Matsunaga, Yasushi Kojima, Naoya Yamazaki, Kiyoshi Yoshida, Yoshinori Hoshino
  • Patent number: 5138522
    Abstract: A cabinet for housing electrical components therein, including a horizontal passage (42) for ventilation extending crosswise horizontally through a ceiling portion of the cabinet, a ventilation unit (43) allowing air to enter the horizontal passage (42), and a partition separating the horizontal passage (42) from the cabinet interior (44). A thermal conductive unit (1) is fitted in the partition such that it is disposed partially in the horizontal passage (42) and partially in the cabinet interior (44), and conducts heat generated by the electrical component to the horizontal passage (42), and at least one cable support is provided on the thermal conductive unit (1), for receiving cables in the cabinet interior (44).
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: August 11, 1992
    Assignee: Fujitsu Limited
    Inventors: Yasushi Kojima, Misao Kikuchi, Akihiro Yakuwa, Katsuki Matsunaga, Naoya Yamazaki