Patents by Inventor Mitsuo Fujimura

Mitsuo Fujimura 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: 8184442
    Abstract: A case for an electronic device includes a printed circuit board; a frame capable of storing the printed circuit board; a back board equipped on a back side of the frame, and including a connector for connecting the printed circuit board; rail holders equipped in predetermined positions of the frame and extending from a front side of the case to the back board; and guide rails engaged with the rail holders respectively and including engagement parts capable of engaging with the rail holders respectively, and holding parts for holding both ends of the frame, and extending in accordance with the rail holders, respectively.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: May 22, 2012
    Assignee: Fujitsu Limited
    Inventors: Mitsuo Fujimura, Hideo Araki, Katsuhiko Ikeda, Yoshiyuki Sato
  • Patent number: 7889508
    Abstract: A plug-in unit-mounting structure which makes it possible to efficiently mount plug-in units having different sizes in all slots. PIUs of printed board type which are different in size are mounted using respective mounting frames associated therewith. Box-shaped PIUs are also mounted using respective mounting frame associated therewith. However, no guide rail is provided on the metal shelf per se, for guiding each PIU for mounting the same therein.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: February 15, 2011
    Assignee: Fujitsu Limited
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Hideo Araki, Hideki Zenitani
  • Patent number: 7738262
    Abstract: In order to detachably mount a module to a plug-in unit while reliably realizing electromagnetic shielding of the plug-in unit in a communication apparatus having a sub-rack and the plug-in unit electrically connected to the sub-rack, the present invention provides a second shield cover member covering a portion protruding from a front end surface of a printed board in an interface part and having a first opening to expose a connection with an outside provided at a front end of the interface part to the outside, the first opening being in contact with a circumferential surface of the interface part and a shield mechanism interposed between the second shield cover member and a front cover member to cover a gap between a second opening of the front cover member and an outer circumferential surface of the second shield cover member.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: June 15, 2010
    Assignee: Fujitsu Limited
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Takashi Shirakami
  • Publication number: 20100103633
    Abstract: A case for an electronic device includes a printed circuit board; a frame capable of storing the printed circuit board; a back board equipped on a back side of the frame, and including a connector for connecting the printed circuit board; rail holders equipped in predetermined positions of the frame and extending from a front side of the case to the back board; and guide rails engaged with the rail holders respectively and including engagement parts capable of engaging with the rail holders respectively, and holding parts for holding both ends of the frame, and extending in accordance with the rail holders, respectively.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Mitsuo FUJIMURA, Hideo Araki, Katsuhiko Ikeda, Yoshiyuki Sato
  • Patent number: 7510416
    Abstract: A PIU plug-in/plug-off mechanism for an electronic apparatus, which is capable of efficiently applying a force required for a plugging-in/off operation of connectors to a printed board by pressing a portion of the printed board close to a backplane. An operating handle of a card lever is turned counterclockwise to thereby bring a push pin into abutment with a rear edge of an open recess. When the card lever is further turned in this state, a pressing force for moving a plug-in unit in the insertion direction acts on an engaging member via an arm. This starts fitting the printed board into a plug-in connector without causing warping of the printed board.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: March 31, 2009
    Assignee: Fujitsu Limited
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Hideo Araki, Hideki Zenitani
  • Publication number: 20080043451
    Abstract: A plug-in unit-mounting structure which makes it possible to efficiently mount plug-in units having different sizes in all slots. PIUs of printed board type which are different in size are mounted using respective mounting frames associated therewith. Box-shaped PIUs are also mounted using respective mounting frame associated therewith. However, no guide rail is provided on the metal shelf per se, for guiding each PIU for mounting the same therein.
    Type: Application
    Filed: March 9, 2007
    Publication date: February 21, 2008
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Hideo Araki, Hideki Zenitani
  • Publication number: 20080045051
    Abstract: A PIU plug-in/plug-off mechanism for an electronic apparatus, which is capable of efficiently applying a force required for a plugging-in/off operation of connectors to a printed board by pressing a portion of the printed board close to a backplane. An operating handle of a card lever is turned counterclockwise to thereby bring a push pin into abutment with a rear edge of an open recess. When the card lever is further turned in this state, a pressing force for moving a plug-in unit in the insertion direction acts on an engaging member via an arm. This starts fitting the printed board into a plug-in connector without causing warping of the printed board.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 21, 2008
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Hideo Araki, Hideki Zenitani
  • Publication number: 20070293065
    Abstract: In order to detachably mount a module to a plug-in unit while reliably realizing electromagnetic shielding of the plug-in unit in a communication apparatus having a sub-rack and the plug-in unit electrically connected to the sub-rack, the present invention provides a second shield cover member covering a portion protruding from a front end surface of a printed board in an interface part and having a first opening to expose a connection with an outside provided at a front end of the interface part to the outside, the first opening being in contact with a circumferential surface of the interface part and a shield mechanism interposed between the second shield cover member and a front cover member to cover a gap between a second opening of the front cover member and an outer circumferential surface of the second shield cover member.
    Type: Application
    Filed: August 21, 2007
    Publication date: December 20, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura, Takashi Shirakami
  • Publication number: 20070230889
    Abstract: A plug-in unit to be installed in a subrack and including on a front face at least one optical interface to which a fiber optic cable is connected includes an extra fiber optic cable length handling mechanism, positioned on the front face below the optical interface, for handling the fiber optic cable.
    Type: Application
    Filed: August 16, 2006
    Publication date: October 4, 2007
    Inventors: Yoshiyuki Sato, Mitsuo Fujimura
  • Patent number: 7064961
    Abstract: A communication device which is constructed so as to permit efficient mounting of cards such as printed boards, thereby enhancing convenience and economy and ensuring high-quality communications. A basic unit is constituted by a basic board having a common control section packaged thereon, and a basic back wiring board on which are arranged a basic card connector for mounting a detachable card unit for processing signals and a basic link connector for additionally connecting such a card unit and which has wiring formed on a substrate thereof. An extension unit is connected to the basic link connector to permit additional connection of the card unit.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: June 20, 2006
    Assignee: Fujitsu Limited
    Inventors: Akira Sawada, Mitsuaki Hayashi, Hironori Tanaka, Kouichi Kuramitsu, Miyuki Hashimoto, Wataru Takano, Mitsuo Fujimura
  • Publication number: 20020176234
    Abstract: A communication device which is constructed so as to permit efficient mounting of cards such as printed boards, thereby enhancing convenience and economy and ensuring high-quality communications. A basic unit is constituted by a basic board having a common control section packaged thereon, and a basic back wiring board on which are arranged a basic card connector for mounting a detachable card unit for processing signals and a basic link connector for additionally connecting such a card unit and which has wiring formed on a substrate thereof. An extension unit is connected to the basic link connector to permit additional connection of the card unit.
    Type: Application
    Filed: September 14, 2001
    Publication date: November 28, 2002
    Inventors: Akira Sawada, Mitsuaki Hayashi, Hironori Tanaka, Kouichi Kuramitsu, Miyuki Hashimoto, Wataru Takano, Mitsuo Fujimura