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).
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Patent number: 7355123Abstract: 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: GrantFiled: May 19, 2004Date of Patent: April 8, 2008Assignees: Hirakawa Hewtech Corporation, Advantest CorporationInventors: Hiroyuki Kimura, Mitsuo Iwasaki, Shigeru Murayama, Shigeru Matsumura
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Publication number: 20070004254Abstract: 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: ApplicationFiled: September 5, 2006Publication date: January 4, 2007Applicant: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Patent number: 7144260Abstract: 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: GrantFiled: November 4, 2005Date of Patent: December 5, 2006Assignee: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Publication number: 20060254792Abstract: 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: ApplicationFiled: May 19, 2004Publication date: November 16, 2006Inventors: Hiroyuki Kimura, Mitsuo Iwasaki, Shigeru Murayama, Shigeru Matsumura
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Patent number: 7125264Abstract: 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: GrantFiled: October 22, 2004Date of Patent: October 24, 2006Assignee: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Patent number: 7033196Abstract: 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: GrantFiled: December 9, 2004Date of Patent: April 25, 2006Assignee: Advantest Corp.Inventors: Shigeru Murayama, Masanori Kaneko, Fumio Kurotori, Shigeru Matsumura
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Publication number: 20060057874Abstract: 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: ApplicationFiled: November 4, 2005Publication date: March 16, 2006Applicant: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Patent number: 6963032Abstract: 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: GrantFiled: February 10, 2003Date of Patent: November 8, 2005Assignees: Hirakawa Hewtech Corporation, Advantest CorporationInventors: Tetsuo Yamaguchi, Mitsuo Iwasaki, Takao Ishido, Takaaki Kusama, Mitsuo Nanjyo, Shigeru Matsumura, Shigeru Murayama
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Publication number: 20050159034Abstract: 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: ApplicationFiled: December 9, 2004Publication date: July 21, 2005Inventors: Shigeru Murayama, Masanori Kaneko, Fumio Kurotori, Shigeru Matsumura
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Publication number: 20050115738Abstract: 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: ApplicationFiled: February 10, 2003Publication date: June 2, 2005Inventors: Tetsuo Yamaguchi, Mitsuo Iwasaki, Takao Ishido, Takaaki Kusama, Mitsuo Nanjyo, Shigeru Matsumura, Shigeru Murayama
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Publication number: 20050054224Abstract: 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: ApplicationFiled: October 22, 2004Publication date: March 10, 2005Applicant: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Patent number: 6846189Abstract: 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: GrantFiled: June 20, 2003Date of Patent: January 25, 2005Assignee: Advantest CorporationInventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Publication number: 20040242035Abstract: 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: ApplicationFiled: June 20, 2003Publication date: December 2, 2004Inventors: Shigeru Murayama, Masanori Kaneko, Shigeru Matsumura, Takashi Sekizuka, Hiroyuki Hama
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Patent number: 6478596Abstract: 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 aType: GrantFiled: January 16, 2002Date of Patent: November 12, 2002Assignees: Advantest Corporation, AMP (Japan) Ltd. IInventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
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Patent number: 6398570Abstract: 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 aloType: GrantFiled: November 13, 2000Date of Patent: June 4, 2002Assignee: Advantest CorporationInventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
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Publication number: 20020061664Abstract: 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 aloType: ApplicationFiled: January 16, 2002Publication date: May 23, 2002Inventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
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Patent number: 6184698Abstract: 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 aloType: GrantFiled: July 9, 1999Date of Patent: February 6, 2001Assignee: Advantest CoprporationInventors: Kenji Yoshida, Takashi Naito, Shigeru Murayama, Katsuhiko Sakamoto, Takashi Masaki
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Patent number: 5799502Abstract: 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: GrantFiled: July 31, 1996Date of Patent: September 1, 1998Assignee: Sanyo Electric Co., Ltd.Inventors: Kazuo Nomura, Tomohiko Kato, Tomonori Tamura, Shigeru Murayama
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Patent number: 4442371Abstract: 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: GrantFiled: October 25, 1982Date of Patent: April 10, 1984Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yumiteru Utsunomiya, Shigeru Murayama