Patents by Inventor Shigeru Murayama

Shigeru Murayama 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: 7355123
    Abstract: A foam coaxial cable, including an inner conductor, a foam insulating layer formed on the outer periphery of the inner conductor, an outer conductor formed on the outer periphery of the foam insulating layer, and an outer cover formed on the outer periphery of the outer conductor. A skin layer having a generally complete round outline is formed on the outer periphery of the foam insulating layer.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 8, 2008
    Assignees: Hirakawa Hewtech Corporation, Advantest Corporation
    Inventors: Hiroyuki Kimura, Mitsuo Iwasaki, Shigeru Murayama, Shigeru Matsumura
  • Publication number: 20070004254
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 4, 2007
    Applicant: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Patent number: 7144260
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: December 5, 2006
    Assignee: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Publication number: 20060254792
    Abstract: A foam coaxial cable, comprising an inner conductor (1), a foam insulating layer (2) formed on the outer periphery of the inner conductor (1), an outer conductor (3) formed on the outer periphery of the foam insulating layer (2), and an outer cover (4) formed on the outer periphery of the outer conductor (3). A skin layer (11) having a generally complete round outline is formed on the outer periphery of the foam insulating layer (2). Thus, the productivity of the foam insulating layer (2) can be increased by increasing the accuracy of the characteristic impedance values of the cable while increasing the flexibility and mechanical strength of the cable.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 16, 2006
    Inventors: Hiroyuki Kimura, Mitsuo Iwasaki, Shigeru Murayama, Shigeru Matsumura
  • Patent number: 7125264
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: October 24, 2006
    Assignee: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Patent number: 7033196
    Abstract: A connector including a plug and a socket and a driving section for fitting the plug and the socket by moving the driving section in a first direction substantially perpendicular to the fitting direction of the socket and the plug. The driving section has a first groove part provided in the first direction, and a second groove part provided substantially perpendicular to the first direction. The plug has a first protruding portion engaging with the first groove part, and the socket has a second protruding portion engaging with the first groove part. When the driving section moves in the first direction, the driving section depresses the second protruding portion in the fitting direction at the second groove part to move the socket in the fitting direction, thus fitting the plug in the socket.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: April 25, 2006
    Assignee: Advantest Corp.
    Inventors: Shigeru Murayama, Masanori Kaneko, Fumio Kurotori, Shigeru Matsumura
  • Publication number: 20060057874
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 16, 2006
    Applicant: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Patent number: 6963032
    Abstract: A foamed coaxial cable with high precision according to the present invention comprises: an internal conductor twisted with a plurality of electrically conductive wires; a foamed insulator with its low dielectric constant made of a porous tape body formed on the outer periphery of this internal conductor; an external conductor made of a number of electrically conductive thin wires braided on the outer periphery of this foamed insulator; and an outer sheath made of a resin having heat resistance formed on the outer periphery of this external insulator, wherein the precision of external diameter of the internal conductor is 4/1000 mm or less, the precision of external diameter size of the foamed insulator is ±0.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: November 8, 2005
    Assignees: Hirakawa Hewtech Corporation, Advantest Corporation
    Inventors: Tetsuo Yamaguchi, Mitsuo Iwasaki, Takao Ishido, Takaaki Kusama, Mitsuo Nanjyo, Shigeru Matsumura, Shigeru Murayama
  • Publication number: 20050159034
    Abstract: A connector comprising a plug and a socket being fitted with the plug and further provided with a driving section for fitting the plug and the socket by moving in a first direction substantially perpendicular to the fitting direction of the socket and the plug. The driving section has a first groove part provided in the first direction, and a second groove part provided substantially perpendicular to the first direction. The plug has a first protruding portion engaging with the first groove part, and the socket has a second protruding portion engaging with the first groove part. When the driving section moves in the first direction, the driving section depresses the second protruding portion in the fitting direction at the second groove part to move the socket in the fitting direction, thus fitting the plug in the socket.
    Type: Application
    Filed: December 9, 2004
    Publication date: July 21, 2005
    Inventors: Shigeru Murayama, Masanori Kaneko, Fumio Kurotori, Shigeru Matsumura
  • Publication number: 20050115738
    Abstract: A foamed coaxial cable with high precision according to the present invention comprises: an internal conductor twisted with a plurality of electrically conductive wires; a foamed insulator with its low dielectric constant made of a porous tape body formed on the outer periphery of this internal conductor; an external conductor made of a number of electrically conductive thin wires braided on the outer periphery of this foamed insulator; and an outer sheath made of a resin having heat resistance formed on the outer periphery of this external insulator, wherein the precision of external diameter of the internal conductor is 4/1000 mm or less, the precision of external diameter size of the foamed insulator is ±0.
    Type: Application
    Filed: February 10, 2003
    Publication date: June 2, 2005
    Inventors: Tetsuo Yamaguchi, Mitsuo Iwasaki, Takao Ishido, Takaaki Kusama, Mitsuo Nanjyo, Shigeru Matsumura, Shigeru Murayama
  • Publication number: 20050054224
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 10, 2005
    Applicant: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Patent number: 6846189
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: January 25, 2005
    Assignee: Advantest Corporation
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Publication number: 20040242035
    Abstract: A connector mounted on a board having a plurality of board signal lines for transmitting a signal and a board ground line grounded. Each of the plurality of board signal lines includes a plurality of signal terminals formed in correspondence to each of the signal lines. Each of the signal terminals comprises: a signal core line formed of conductor by extension in the shape of a line; a shield for core line formed of conductor insulated from the signal core line electrically so as to extend in an axis direction of the signal core line and enclose the signal core line; a signal electrode formed by extension from the signal core line for connecting the signal core line with the board signal line corresponding to the signal terminal; and a plurality of ground electrodes extended from the shield for core line and opposed to each other by intervention of the signal electrode for connecting the shield for core line with the board ground line respectively.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 2, 2004
    Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
  • Patent number: 6478596
    Abstract: A semiconductor component mounting apparatus for mounting a semiconductor component to test the electric characteristics of the semiconductor component, comprising: a contactor 20 with which the semiconductor component contacts; a substrate 30 which supplies an electric signal to the contractor 20; a plurality of connection components 40, each of which has an electric terminal 48 for supplying the electric signal to the substrate 30 and which is fixed to the substrate 30; a plurality of connectors 50 which has a contact pin 70 including a contact part 74 for contacting with the electric terminal 48 of the connection component 40, a housing 68 for holding the contact pin 70, a pushing apart 78 for pushing the contact pin 70 to the electric terminal 48, and which is freely-detachably connected to one of the plurality of the connection components 40; a holder 80 which holds the plurality of the connectors 50; and a fixing part 86 which fixes the holder 80 to the substrate 30, wherein the contact part 74 slides a
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: November 12, 2002
    Assignees: Advantest Corporation, AMP (Japan) Ltd. I
    Inventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
  • Patent number: 6398570
    Abstract: A semiconductor component mounting apparatus for mounting a semiconductor component to test the electric characteristics of the semiconductor component, comprising: a contactor 20 with which the semiconductor component contacts; a substrate 30 which supplies an electric signal to the contactor 20; a plurality of connection components 40, each of which has an electric terminal 48 for supplying the electric signal to the substrate 30 and which is fixed to the substrate 30; a plurality of connectors 50 which has a contact pin 70 including a contact part 74 for contacting with the electric terminal 48 of the connection component 40, a housing 68 for holding the contact pin 70, a pushing part 78 for pushing the contact pin 70 to the electric terminal 48, and which is freely-detachably connected to one of the plurality of the connection components 40; a holder 80 which holds the plurality of the connectors 50, and a fixing part 86 which fixes the holder 80 to the substrate 30, wherein the contact part 74 slides alo
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: June 4, 2002
    Assignee: Advantest Corporation
    Inventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
  • Publication number: 20020061664
    Abstract: A semiconductor component mounting apparatus for mounting a semiconductor component to test the electric characteristics of the semiconductor component, comprising: a contactor 20 with which the semiconductor component contacts; a substrate 30 which supplies an electric signal to the contactor 20; a plurality of connection components 40, each of which has an electric terminal 48 for supplying the electric signal to the substrate 30 and which is fixed to the substrate 30; a plurality of connectors 50 which has a contact pin 70 including a contact part 74 for contacting with the electric terminal 48 of the connection component 40, a housing 68 for holding the contact pin 70, a pushing part 78 for pushing the contact pin 70 to the electric terminal 48, and which is freely-detachably connected to one of the plurality of the connection components 40; a holder 80 which holds the plurality of the connectors 50, and a fixing part 86 which fixes the holder 80 to the substrate 30, wherein the contact part 74 slides alo
    Type: Application
    Filed: January 16, 2002
    Publication date: May 23, 2002
    Inventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
  • Patent number: 6184698
    Abstract: A semiconductor component mounting apparatus for mounting a semiconductor component to test the electric characteristics of the semiconductor component, comprising: a contactor 20 with which the semiconductor component contacts; a substrate 30 which supplies an electric signal to the contactor 20; a plurality of connection components 40, each of which has an electric terminal 48 for supplying the electric signal to the substrate 30 and which is fixed to the substrate 30; a plurality of connectors 50 which has a contact pin 70 including a contact part 74 for contacting with the electric terminal 48 of the connection component 40, a housing 68 for holding the contact pin 70, a pushing part 78 for pushing the contact pin 70 to the electric terminal 48, and which is freely-detachably connected to one of the plurality of the connection components 40; a holder 80 which holds the plurality of the connectors 50; and a fixing part 86 which fixes the holder 80 to the substrate 30, wherein the contact part 74 slides alo
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 6, 2001
    Assignee: Advantest Coprporation
    Inventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
  • Patent number: 5799502
    Abstract: An absorption type refrigerating apparatus which has a high performance coefficient as an entire apparatus by improving the cooling capacities of the condensation function portion and the absorption function portion and can be reduced in size is constituted such that the cooling function portion 1 for cooling the absorption function portion (absorber) 1 by means of the first heat operation fluid (cooling water) 35a is divided into a plurality of sub-portions such as the cooling pipe 201A, cooling pipe 201H and absorption/heat exchanger 234, the flow passages of the first heat operation fluid 35a are connected to these cooling function sub-portions 201A, 201H and 234 in parallel/series like a route formed by the pipe lines 20, 20A, 20D and 21 and a route formed by the pipe lines 20, 20B, 20C and 21, and the cooling capacity of the cooling pipe 201H is increased by forming a continuous irregular surface 1C on the inner wall of the outer shell 1A of the absorber 1.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: September 1, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuo Nomura, Tomohiko Kato, Tomonori Tamura, Shigeru Murayama
  • Patent number: 4442371
    Abstract: The present invention improves the construction of a cooling ventilation flue for the coil end portion of the stator of a rotary electric machine so as to enhance the cooling effect. That is, the invention provides a cooling device for a rotary electric machine characterized by comprising a ventilation guide which is disposed at the coil end portion of the stator of the rotary electric machine, which divides the stator coil end portion in an axial direction of the rotor of the rotary electric machine into a first ventilating section for advancing cooling air onto an inner peripheral side of the coil end portion and a second ventilating section for advancing the cooling air, having passed through the first ventilating section, onto an outer peripheral side of the coil end portion and which guides the cooling air, having passed through the second ventilating section, into a space surrounding the stator.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: April 10, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yumiteru Utsunomiya, Shigeru Murayama