Patents by Inventor Kiyoshi Sato

Kiyoshi Sato 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: 7351096
    Abstract: A cable connector includes a contact assembly including an electrical insulating block part which is configured to incorporate plural signal contacts; and a relay wiring substrate mounted to a back of the contact assembly. The relay wiring substrate includes, on a surface, a contact connecting pad electrically connected to one of the signal contacts, a wiring connecting pad, and a wiring pattern connecting the contact connecting pad and the wiring connecting pad. The relay wiring substrate further includes a ground layer inside the relay wiring substrate. The cable connector further includes a cable connected to the relay wiring substrate by electrically connecting an end of a wiring with the wiring connecting pad. The relay wiring substrate further includes a ground pattern for matching impedance inside the relay wiring substrate.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: April 1, 2008
    Assignee: Fujitsu Component Limited
    Inventors: Takahiro Kondou, Kiyoshi Sato, Mitsuru Kobayashi, Satoshi Moriyama
  • Patent number: 7346978
    Abstract: A method for manufacturing a thin film magnetic head comprises forming a first magnetic core extending from a surface facing a recording medium in a height direction. The method further comprises forming first coil pieces from a first conductive material on the coil insulating underlayer at a side of the surface facing the recording medium with respect to the connecting region, and simultaneously forming a first metal layer from said first conductive material on the first magnetic core in the back region located from the connecting region in the height direction. The method also comprises forming a coil insulating layer for covering the first coil pieces, and forming the second magnetic core above the first magnetic core.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: March 25, 2008
    Assignee: Alps Electric Co., Ltd
    Inventor: Kiyoshi Sato
  • Patent number: 7345477
    Abstract: In a magnetic detection device for obtaining an output from between a variable resistance element using the magnetoresistance effect and a reference resistance element, a balance between resistance values in the device can be easily adjusted in a wide range. A voltage is applied to a resistance adjusting unit, a reference resistance element, and a variable resistance element, which are serially connected, and is also applied to another variable resistance element, another reference resistance element, and another resistance adjusting unit, which are serially connected. When subjected to a magnetic field of a predetermined size, resistance values of the variable resistance elements change, and as a result, the potentials of output terminals change. Each of the resistance adjusting units includes serially connected parallel portions each including a plurality of parallel connected resistance elements.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 18, 2008
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hideto Ando, Kiyoshi Sato, Hiroyuki Nakada
  • Patent number: 7345867
    Abstract: A capacitive pressure sensor and method of manufacturing the same is provided. The capactive pressure sensor includes a glass substrate that has a pair of surfaces opposite to each other. A recessed portion is provided to form a cavity on one of the pair of principal surfaces. A first protruding portion provided in the recessed portion. A first silicon substrate has a fixed electrode formed on the first protruding portion, and a movable electrode disposed with a predetermined interval between the fixed electrode and the movable electrode.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 18, 2008
    Assignee: Alps Electric Co., Ltd
    Inventors: Tetsuya Fukuda, Katsuya Kikuiri, Kiyoshi Sato, Yoshinobu Nakamura, Hiroyuki Kobayashi
  • Publication number: 20080061777
    Abstract: In a magnetic detection device for obtaining an output from between a variable resistance element using the magnetoresistance effect and a reference resistance element, a balance between resistance values in the device can be easily adjusted in a wide range. A voltage is applied to a resistance adjusting unit, a reference resistance element, and a variable resistance element, which are serially connected, and is also applied to another variable resistance element, another reference resistance element, and another resistance adjusting unit, which are serially connected. When subjected to a magnetic field of a predetermined size, resistance values of the variable resistance elements change, and as a result, the potentials of output terminals change. Each of the resistance adjusting units includes serially connected parallel portions each including a plurality of parallel connected resistance elements.
    Type: Application
    Filed: February 26, 2007
    Publication date: March 13, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Hideto Ando, Kiyoshi Sato, Hiroyuki Nakada
  • Publication number: 20080054889
    Abstract: A magnetic detection device of a NS detection type is provided. A magnetic detection device comprising a first series circuit, a second series circuit, and a third series circuit. At least one of a plurality of resistance elements forming the first series circuit includes a first magneto-resistance element using a magneto-resistance effect, of which an electric resistance varies with an external magnetic field of any one direction. At least one of a plurality of resistance elements forming the second series circuit includes a second magneto-resistance element using a magneto-resistance effect, of which an electric resistance varies with an external magnetic field of a direction apposite to the one direction.
    Type: Application
    Filed: February 26, 2007
    Publication date: March 6, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Katsuya KIKUIRI, Kiyoshi Sato
  • Publication number: 20080054894
    Abstract: The invention provides a magnetic detection device having excellent thermal resistance and water resistance by changing a configuration of layers of an insulating protection layer covering a magnetic detection element. A magnetic detection element is covered with an insulating protection layer, and the insulating protection layer has an alumina layer covering the magnet detection element and a silica layer covering the alumina layer. According to the embodiment, thermal resistance and water resistance can be properly improved, and therefore a magnetic detection device having excellent magnetic sensitivity and a high reliability can be realized without degrading characteristics of the magnetic detection device.
    Type: Application
    Filed: February 26, 2007
    Publication date: March 6, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Toshio Sasaki, Kiyoshi Sato, Ichiro Tokunaga
  • Publication number: 20080054895
    Abstract: A magnetic detection device capable of reducing current consumption includes a second series circuit connected in parallel to a first series circuit. The first series circuit includes a first magneto-resistance element, and a third series circuit 30 includes a second magneto-resistance element. The second series circuit includes fixed resistance elements. Electric resistance of the fixed resistance elements is larger than those of respective resistance elements included in a sensor unit, thereby reducing current consumption.
    Type: Application
    Filed: February 26, 2007
    Publication date: March 6, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Yoshito Sasaki, Katsuya Kikuiri, Kiyoshi Sato
  • Publication number: 20080028856
    Abstract: Provided is a capacitive acceleration sensor including a silicon substrate, which includes a movable electrode having a comb shape and a fixed electrode having a comb shape opposed to the comb shape of the movable electrode, and a pair of glass substrates having a concave portion forming a cavity on at least one side thereof, wherein the silicon substrate and the glass substrates are bonded to each other so that the movable electrode and the fixed electrode is disposed in the cavity. Accordingly, it is possible to provide the capacitive acceleration sensor having a small size and high sensitivity.
    Type: Application
    Filed: February 27, 2007
    Publication date: February 7, 2008
    Applicant: ALPS ELECTRIC CO., LTD
    Inventors: Katsuya Kikuiri, Kiyoshi Sato, Tetsuya Fukuda
  • Publication number: 20080024120
    Abstract: A magnetic sensor uses a magnetoresistance element which can be driven in a stable manner with a dipole irrespective of a polarity of an external magnetic field. A resistance value R of first magnetoresistance elements varies, and a resistance value of second magnetoresistance elements does not vary with a variation in magnetic field magnitude of the external magnetic field H1 in the positive direction. A resistance value R of second magnetoresistance elements varies and a resistance value of first magnetoresistance elements does not vary with a variation in magnetic field magnitude of the external magnetic field H2 in the negative direction. Accordingly, the magnetic sensor can be driven in a stable manner with a dipole irrespective of the polarity of the external magnetic field.
    Type: Application
    Filed: February 26, 2007
    Publication date: January 31, 2008
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Shinichi Sasaki, Kiyoshi Sato, Naoya Hasegawa, Yoshito Sasaki, Eiji Umetsu
  • Patent number: 7286321
    Abstract: Within a space surrounded by a lower core layer, an upheaval layer, and a back gap layer, there are a plurality of first coil pieces arranged in a height direction and covered with a coil insulating layer. On the coil insulating layer, the upheaval layer, and a layered product formed on the back gap layer, a plurality of second coil pieces are arranged in the height direction with an insulating layer therebetween. Between the lower core layer and the first coil pieces, raised layers are formed, and the first coil pieces are in contact with the second coil pieces on connection surfaces exposed from the coil insulating layer on the raised layers.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: October 23, 2007
    Assignee: Alps Electric Co., Ltd.
    Inventor: Kiyoshi Sato
  • Patent number: 7280320
    Abstract: A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second metal layer is formed from above a gap layer covering an electrode extracting layer over above the under layer hindwards therefrom. Accordingly, the second metal layer can be brought closer to the slider side than an upper shield layer. Consequently, the thermal dissipation effects of the thin-film magnetic head can be improved.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: October 9, 2007
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kiyoshi Sato, Hideki Gochou, Hisayuki Yazawa
  • Publication number: 20070229067
    Abstract: A magnetic sensor capable of properly reducing a deviation of a central potential and a method of manufacturing the magnetic sensor are provided. A conductor is connected to an end of a fixed resistance element. The conductor includes a plurality of divisional path pieces and a common path piece. A current path length in a longitudinal direction of the conductor 35 is varied by cutting a part of the common path piece, thereby adjusting the resistance.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Yoshito Sasaki, Kiyoshi Sato
  • Publication number: 20070229068
    Abstract: A magnetic detection device of which an output can be completely switched over with an external magnetic field is formed in a small size. A detection circuit is formed by forming circuit elements such as an active element layer and interconnection layers on a substrate. An insulating layer is formed on the detection circuit, and a flat surface is formed on the resultant surface. A magnetic detection element that detects an external magnetic field by using a magneto-resistance effect and a fixed resistance element, which has the same electric resistance as the magnetic detection element but does not react to the external magnetic field, are formed on the flat surface. Electrode layers and a lead layer are formed on the flat surface, and the lead layer and the interconnection layer are electrically connected to each other via a bump penetrating the insulating layer.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Yoshito Sasaki, Hideki Gochou, Kiyoshi Sato
  • Publication number: 20070217079
    Abstract: A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second metal layer is formed from above a gap layer covering an electrode extracting layer over above the under layer hindwards therefrom. Accordingly, the second metal layer can be brought closer to the slider side than an upper shield layer. Consequently, the thermal dissipation effects of the thin-film magnetic head can be improved.
    Type: Application
    Filed: May 15, 2007
    Publication date: September 20, 2007
    Inventors: KIYOSHI SATO, Hideki Gochou, Hisayuki Yazawa
  • Patent number: 7259939
    Abstract: A thin-film magnetic head includes a first magnetic core, a second magnetic core, a connecting layer which connects the first magnetic core and the second magnetic core, a toroidal coil layer, and a shielding layer. The connecting layer extends in the height direction so as to face the back side in the height direction of the shielding layer. Alternatively, the width in the track width direction of the connecting layer is larger than the width in the track width direction of the toroidal coil layer. Consequently, the volume of the connecting layer is increased, and thereby the heat capacity is increased. Heat generated in the thin-film magnetic head can be properly dissipated via the connecting layer, and an increase in the temperature inside the thin-film magnetic head can be prevented. As a result, protrusion of the thin-film magnetic head due to thermal expansion can be prevented.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: August 21, 2007
    Assignee: Alps Electric Co., Ltd.
    Inventor: Kiyoshi Sato
  • Patent number: 7223121
    Abstract: A cable connector for balanced transmission is disclosed. A spacer member is attached to a contact assembly body in the cable connector for balanced transmission, a first signal wire connecting part of a first signal contact member is inserted into a first groove of the spacer member, a second signal wire connecting part of a second signal contact member is inserted into a second groove of the spacer member, and a ground contact member is inserted in a slit of the spacer member, so that their positions are decided. A cable for balanced transmission includes plural pairs of wires, and a first signal wire of the pair of wires is soldered to the first signal connecting part, a second signal wire thereof is soldered to the second signal connecting part, and a drain wire thereof is soldered to a drain wire connecting part of the ground contact member.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: May 29, 2007
    Assignee: Fujitsu Component Limited
    Inventors: Satoshi Moriyama, Takahiro Kondou, Kiyoshi Sato, Mitsuru Kobayashi
  • Publication number: 20070115594
    Abstract: A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily-introduce a recording magnetic field to a fore end of the main magnetic pole layer.
    Type: Application
    Filed: January 18, 2007
    Publication date: May 24, 2007
    Inventors: Toru Takahashi, Hisayuki Yazawa, Hideki Gochou, Kiyoshi Kobayashi, Minoru Yamada, Kiyoshi Sato, Toshinori Watanabe
  • Publication number: 20070115609
    Abstract: A capacitive pressure sensor and method of manufacturing the same is provided. The capactive pressure sensor includes a glass substrate that has a pair of surfaces opposite to each other. A recessed portion is provided to form a cavity on one of the pair of principal surfaces. A first protruding portion provided in the recessed portion. A first silicon substrate has a fixed electrode formed on the first protruding portion, and a movable electrode disposed with a predetermined interval between the fixed electrode and the movable electrode.
    Type: Application
    Filed: November 10, 2006
    Publication date: May 24, 2007
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Tetsuya Fukuda, Katsuya Kikuiri, Kiyoshi Sato, Yoshinobu Nakamura, Hiroyuki Kobayashi
  • Publication number: 20070111597
    Abstract: A cable connector includes a contact assembly including an electrical insulating block part which is configured to incorporate plural signal contacts; and a relay wiring substrate mounted to a back of the contact assembly. The relay wiring substrate includes, on a surface, a contact connecting pad electrically connected to one of the signal contacts, a wiring connecting pad, and a wiring pattern connecting the contact connecting pad and the wiring connecting pad. The relay wiring substrate further includes a ground layer inside the relay wiring substrate. The cable connector further includes a cable connected to the relay wiring substrate by electrically connecting an end of a wiring with the wiring connecting pad. The relay wiring substrate further includes a ground pattern for matching impedance inside the relay wiring substrate.
    Type: Application
    Filed: July 3, 2006
    Publication date: May 17, 2007
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Takahiro Kondou, Kiyoshi Sato, Mitsuru Kobayashi, Satoshi Moriyama