Patents by Inventor Fumio Kurotori

Fumio Kurotori 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: 7667471
    Abstract: A contact pin (50) for contacting a terminal of a wafer and supplying a signal to that wafer is provided with a first conductive layer (51b) composed of a first conductive material having a relatively higher hardness than the oxide film formed on the terminal of the wafer, a second conductive layer (51c) composed of a second conductive material having a relatively lower hardness than the oxide film, and a base material (51a) with the first conductive layer (51b) and second conductive layer (51c) formed at the outside, the first conductive layer (51b) being formed so as to closely contact the outside of the second conductive layer (51c), the first conductive layer (51b) and second conductive layer (51c) both being exposed at the front end face (50a) of the contact pin (50).
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: February 23, 2010
    Assignee: Advantest Corporation
    Inventors: Fumio Kurotori, Takaji Ishikawa, Tadao Saito
  • Patent number: 7482821
    Abstract: A probe card 1 is composed of a plurality of probe pins 50 having wafer-side plungers51 at one end portion and substrate-side plungers52 on the other end side; two probe guides 30 and 40 one above the other for supporting the plurality of probe pins 50, so that the plurality of probe pins 50 are arranged to be corresponding to an arrangement of external terminals of a semiconductor wafer and the wafer-side plungers 51 of the probe pins 50 protrude; a print substrate 10 having pads 13 for the substrate-side plungers 52 of the probe pins 50 supported by the probe guides 30 and 40 to contact; and a stiffener 20 provided on the back surface of the print substrate 10.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: January 27, 2009
    Assignee: Advantest Corporation
    Inventors: Takaji Ishikawa, Fumio Kurotori, Tadao Saito
  • Publication number: 20080143366
    Abstract: A contact pin (50) for contacting a terminal of a wafer and supplying a signal to that wafer is provided with a first conductive layer (51b) composed of a first conductive material having a relatively higher hardness than the oxide film formed on the terminal of the wafer, a second conductive layer (51c) composed of a second conductive material having a relatively lower hardness than the oxide film, and a base material (51a) with the first conductive layer (51b) and second conductive layer (51c) formed at the outside, the first conductive layer (51b) being formed so as to closely contact the outside of the second conductive layer (51c), the first conductive layer (51b) and second conductive layer (51c) both being exposed at the front end face (50a) of the contact pin (50).
    Type: Application
    Filed: December 14, 2004
    Publication date: June 19, 2008
    Inventors: Fumio Kurotori, Takaji Ishikawa, Tadao Saito
  • 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
  • Patent number: 6981898
    Abstract: A connector includes multiple pairs of signal contacts arranged in a housing, and facilitates the wiring design and the wiring operation for substrates. The two signal contacts in each of the multiple pairs are arranged at a distance in the longitudinal direction of the housing. With this arrangement, excellent coupling can be established between the two signal contacts, and signals can be balanced-transmitted without causing a phase difference. Also, the lengths of each pair of wires of a wiring substrate to be connected to the multiple pairs of signal contacts can be easily made uniform. Accordingly, there is no need to prepare excessive wiring areas, and the substrate wiring design and the wiring operation can be simplified.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: January 3, 2006
    Assignee: Fujitsu Component Limited
    Inventors: Junichi Akama, Masahiro Hamazaki, Tadashi Kumamoto, Manabu Shimizu, Hideo Miyazawa, Fumio Kurotori, Moriyuki Ueno
  • Publication number: 20050280428
    Abstract: A probe card 1 is composed of a plurality of probe pins 50 having wafer-side plungers 51 at one end portion and substrate-side plungers 52 on the other end side; two probe guides 30 and 40 one above the other for supporting the plurality of probe pins 50, so that the plurality of probe pins 50 are arranged to be corresponding to an arrangement of external terminals of a semiconductor wafer and the wafer-side plungers 51 of the probe pins 50 protrude; a print substrate 10 having pads 13 for the substrate-side plungers 52 of the probe pins 50 supported by the probe guides 30 and 40 to contact; and a stiffener 20 provided on the back surface of the print substrate 10. The probe guides 30 and 40 are produced by a material having substantially the same thermal expansion coefficient as that of the semiconductor wafer, and fixed to the print substrate 10 and the stiffener 20 at the circumferential portion and the center portion.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 22, 2005
    Inventors: Takaji Ishikawa, Fumio Kurotori, Tadao Saito
  • 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: 20040029410
    Abstract: A connector includes multiple pairs of signal contacts arranged in a housing, and facilitates the wiring design and the wiring operation for substrates. The two signal contacts in each of the multiple pairs are arranged at a distance in the longitudinal direction of the housing. With this arrangement, excellent coupling can be established between the two signal contacts, and signals can be balanced-transmitted without causing a phase difference. Also, the lengths of each pair of wires of a wiring substrate to be connected to the multiple pairs of signal contacts can be easily made uniform. Accordingly, there is no need to prepare excessive wiring areas, and the substrate wiring design and the wiring operation can be simplified.
    Type: Application
    Filed: July 7, 2003
    Publication date: February 12, 2004
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Junichi Akama, Masahiro Hamazaki, Tadashi Kumamoto, Manabu Shimizu, Hideo Miyazawa, Fumio Kurotori, Moriyuki Ueno
  • Patent number: 6464521
    Abstract: A connector device is provided, which device includes a housing including first and second sides opposing each other, first terminal members attached to the first side of the housing, and second terminal members attached to the second side of the housing. Each of the first terminal members and each of the second terminal members are alternately arranged side by side, and the first and second terminal members have respective contact portions for external connection, the contact portions being arranged side by side.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: October 15, 2002
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Fumio Kurotori, Manabu Shimizu
  • Patent number: 6269539
    Abstract: A method for fabricating a connector for coupling with a counter connector having an array of pairs of contacts therein includes providing an insulated housing having an array of openings receiving a plurality of first contact modules each having first and second isolated contacts and a second contact module having isolated first and second conducting members respectively having first and second contacts and a terminal, and a third contact and a second terminal, selectively inserted into corresponding openings of the insulating housing such that each of the respective first and second contacts of the first contact modules are connected with the corresponding contact of the counter connector while maintaining the first and second contacts electrically isolated from each other.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: August 7, 2001
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Norihiro Takahashi, Fumio Kurotori, Hideo Miyazawa, Osamu Daikuhara, Kazuyuki Futaki, Hiroyuki Suzuki, Takahiro Yoshiike, Kazuhiko Ikeda
  • Patent number: 6183283
    Abstract: An electrical contact element for a connector, including a first contact end, a second contact end opposed to the first contact end, and an intermediate section integrally joining the first and second contact ends with each other. The intermediate section is provided integrally with a first projection tightly press-fitted into an electro-insulating body of the connector, and with a second projection abutted onto a surface of the connector body to permit the contact element to be fixedly supported in the connector body against an angular displacement of the contact element about the first projection. The electro-insulating body of the connector includes a base for supporting the plural electrical contact elements in a mutually isolated mariner, and a pair of columns extending in the same direction from longitudinally opposed ends of the base.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: February 6, 2001
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Fumio Kurotori, Osamu Daikuhara, Kazuyuki Futaki
  • Patent number: 6162091
    Abstract: A connector includes a connector main body and a plurality of terminals, the connector main body being provided with hook parts which can be engaged to notch parts of a printed-circuit board so as to temporarily fix the connector to the printed-circuit board. The connector main body is provided with pins which move within a small region when the pins are forced to move, and, to achieve the temporarily fixed state, the pins are forced to move slightly so that the pins are fitted into openings provided in the printed-circuit board.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: December 19, 2000
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Fumio Kurotori, Osamu Daikuhara, Hideo Miyazawa
  • Patent number: 6106331
    Abstract: A connector assembly for receiving a cable with a plurality of wires includes a body including a plurality of contacts provided on the front face of the body; a plurality of leads for connecting the contacts to a plurality of contact points provided on a circuit board to which the connector assembly is attached; a pair of brackets provided on the either ends of the body; and a pair of board locks, provided on the brackets, for fastening the connector assembly to the circuit board.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 22, 2000
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Fumio Kurotori, Kazuyuki Futaki, Hiroyuki Suzuki
  • Patent number: 6056590
    Abstract: A connector is moveable between a coupled state and an uncoupled state with respect to a counter connector. Plural contact members of the connector individually contact respective, plural contacts of the counter connector when coupled together. A contact module of the connector has a pair of contacts individually contacting and short circuiting a corresponding pair of respective contacts of the counter connector, in a selected one of the coupled and uncoupled states thereof. The contact module may include a pair of output terminals corresponding to the pair of contacts and a switch, actuated between first and second states in accordance with the coupled and uncoupled states of the connector, a selected one of the coupled and uncoupled states producing short circuiting of the pair of output terminals.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: May 2, 2000
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Norihiro Takahashi, Fumio Kurotori, Hideo Miyazawa, Osamu Daikuhara, Kazuyuki Futaki, Hiroyuki Suzuki, Takahiro Yoshiike, Kazuhiko Ikeda
  • Patent number: 5951335
    Abstract: An electrical contact element for a connector, including a first contact end, a second contact end opposed to the first contact end, and an intermediate section integrally joining the first and second contact ends with each other. The intermediate section is provided integrally with a first projection tightly press-fitted into an electro-insulating body of the connector, and with a second projection abutted onto a surface of the connector body to permit the contact element to be fixedly supported in the connector body against an angular displacement of the contact element about the first projection. The electro-insulating body of the connector includes a base for supporting the plural electrical contact elements in a mutually isolated manner, and a pair of columns extending in the same direction from longitudinally opposed ends of the base.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: September 14, 1999
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Fumio Kurotori, Osamu Daikuhara, Kazuyuki Futaki
  • Patent number: 5561325
    Abstract: A heat sink mounting structure which can increase a cooling efficiency and easily mount a heat sink. The heat sink mounting structure includes an integrated circuit package, a heat sink mounted on the integrated circuit package, and a fastener for fastening the heat sink to the integrated circuit package so that a lower surface of the heat sink comes into close contact with an upper surface of the integrated circuit package. The fastener includes a strip member, a pair of forked members integrally connected to opposite ends of the strip member, and a pair of engaging members integrally connected to the pair of forked members. The engaging members are adapted to engage diagonal corner portions of the integrated circuit package, and the forked members are adapted to come into pressure contact with side surfaces of the heat sink.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: October 1, 1996
    Assignee: Fujitsu Limited
    Inventors: Mitsuhiro Ueno, Toshihiro Kusagaya, Fumio Kurotori
  • Patent number: 5513995
    Abstract: An electrical connecting arrangement is provided for establishing electrical connections of electronic printed-circuit boards detachably mounted in a cabinet of an electronic installation at a front side thereof. For the establishment of electrical connections, at least one connector is used, and a connector support member is attached to a rear side of the cabinet. The connector includes two connector halves to be coupled to each other. One of the connector halves is detachably attached to and supported by the support member, and is joined to an end of an electrical cable. The other connector half is securely attached to and by a rear side of the printed-circuit board. The connector halves are aligned with each other upon mounting the printed-circuit board in the cabinet, to thereby ensure coupling of the connector halves.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: May 7, 1996
    Assignee: Fujitsu Ltd.
    Inventors: Fumio Kurotori, Norihiro Takahashi, Hideo Miyazawa, Noboru Nakama, Shozo Shimada, Norio Suzuki, Kazuya Oorui