Patents by Inventor Haruki Nagahashi

Haruki Nagahashi 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: 8953406
    Abstract: Disclosed herein is a device that includes a plurality of semiconductor chips mounted on a module substrate. Each of the semiconductor chips includes a reset terminal to which a reset signal is supplied, and an internal circuit that is initialized based on the reset signal. The module substrate includes a reset signal line connected commonly to the reset terminals of the semiconductor chips, and an anti-resonance element connected to the reset signal line.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: February 10, 2015
    Assignee: PS4 Luxco S.a.r.l.
    Inventors: Yoji Nishio, Takao Hirayama, Susumu Hatano, Haruki Nagahashi, Masashi Kawamura, Tadaaki Yoshimura
  • Publication number: 20120268173
    Abstract: Disclosed herein is a device that includes a plurality of semiconductor chips mounted on a module substrate. Each of the semiconductor chips includes a reset terminal to which a reset signal is supplied, and an internal circuit that is initialized based on the reset signal. The module substrate includes a reset signal line connected commonly to the reset terminals of the semiconductor chips, and an anti-resonance element connected to the reset signal line.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 25, 2012
    Inventors: Yoji NISHIO, Takao HIRAYAMA, Susumu HATANO, Haruki NAGAHASHI, Masashi KAWAMURA, Tadaaki YOSHIMURA
  • Patent number: 7460373
    Abstract: There is disclosed a heat radiation device for memory modules intended for radiating heat that is generated from a memory module group wherein a plurality of memory modules equipped with memory elements on both the front and rear face sides of a substrate are placed in parallel. The device comprises heat radiation plates in pairs composed of front face side heat radiation plates in contact with memory elements that are installed on the front face side of the substrate for each of the memory modules, and of rear face side heat radiation plates in contact with memory elements that are installed on the rear face side of the substrate; and connecting members for heat radiation plates in pairs which connect the heat radiation plates in pairs so that heat is conducted among a plurality of the heat radiation plates in pairs.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: December 2, 2008
    Assignee: Elpida Memory, Inc.
    Inventor: Haruki Nagahashi
  • Publication number: 20080013284
    Abstract: There is disclosed a heat radiation device for memory modules intended for radiating heat that is generated from a memory module group wherein a plurality of memory modules equipped with memory elements on both the front and rear face sides of a substrate are placed in parallel. The device comprises heat radiation plates in pairs composed of front face side heat radiation plates in contact with memory elements that are installed on the front face side of the substrate for each of the memory modules, and of rear face side heat radiation plates in contact with memory elements that are installed on the rear face side of the substrate; and connecting members for heat radiation plates in pairs which connect the heat radiation plates in pairs so that heat is conducted among a plurality of the heat radiation plates in pairs.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 17, 2008
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Haruki Nagahashi
  • Patent number: 7288005
    Abstract: A mother board mounts a memory module via a plug-socket coupling, wherein the edge of the memory module has a plug member mounted on a socket member of the mother board. The mother board has a plurality of abutment members abutting the edge surface of the bottom edge of the memory module for which the plug is formed. The abutment members act as ground terminals for connecting the ground layer of the memory module to the ground layer of the mother board, and also act as heat radiation members.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: October 30, 2007
    Assignee: Elpida Memory, Inc.
    Inventor: Haruki Nagahashi
  • Patent number: 7257002
    Abstract: There is disclosed a heat radiation device for memory modules intended for radiating heat that is generated from a memory module group wherein a plurality of memory modules equipped with memory elements on both the front and rear face sides of a substrate are placed in parallel. The device comprises heat radiation plates in pairs composed of front face side heat radiation plates in contact with memory elements that are installed on the front face side of the substrate for each of the memory modules, and of rear face side heat radiation plates in contact with memory elements that are installed on the rear face side of the substrate; and connecting members for heat radiation plates in pairs which connect the heat radiation plates in pairs so that heat is conducted among a plurality of the heat radiation plates in pairs.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: August 14, 2007
    Assignee: Elpida Memory, Inc.
    Inventor: Haruki Nagahashi
  • Publication number: 20060264112
    Abstract: A mother board mounts a memory module via a plug-socket coupling, wherein the edge of the memory module has a plug member mounted on a socket member of the mother board. The mother board has a plurality of abutment members abutting the edge surface of the bottom edge of the memory module for which the plug is formed. The abutment members act as ground terminals for connecting the ground layer of the memory module to the ground layer of the mother board, and also act as heat radiation members.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 23, 2006
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Haruki Nagahashi
  • Publication number: 20050117303
    Abstract: There is disclosed a heat radiation device for memory modules intended for radiating heat that is generated from a memory module group wherein a plurality of memory modules equipped with memory elements on both the front and rear face sides of a substrate are placed in parallel. The device comprises heat radiation plates in pairs composed of front face side heat radiation plates in contact with memory elements that are installed on the front face side of the substrate for each of the memory modules, and of rear face side heat radiation plates in contact with memory elements that are installed on the rear face side of the substrate; and connecting members for heat radiation plates in pairs which connect the heat radiation plates in pairs so that heat is conducted among a plurality of the heat radiation plates in pairs.
    Type: Application
    Filed: October 5, 2004
    Publication date: June 2, 2005
    Inventor: Haruki Nagahashi