Patents by Inventor Hiroyuki Kubo

Hiroyuki Kubo 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).

  • Antenna having structure for multi-angled reception and mobile terminal including the antenna
    Patent number: 8718727
    Abstract: An antenna that suppresses deterioration of communication performance depending on an angle with respect to a reading surface of a reader/writer includes a rectangular spiral coil conductor provided on a flexible substrate. The flexible substrate includes an aperture in a winding center portion of the coil conductor. A magnetic sheet penetrates the aperture of the flexible substrate. An antenna coil is provided near an end of a circuit board. A first conductor portion and a second conductor portion of the coil conductor are provided at positions opposing each other across the aperture. A portion of the magnetic sheet close to the second conductor portion is bent in a direction to get close to the circuit board.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 6, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Kubo, Hiromitsu Ito, Kuniaki Yosui
  • Antenna device
    Patent number: 8698685
    Abstract: An antenna device includes a circuit board and an antenna coil that includes a flexible board on which plural coil conductors are formed and a magnetic core inserted into through holes provided in the flexible board. In each of the plural coil conductors, a first conductor portion is adjacent to a first principal surface of the magnetic core and a second conductor portion is adjacent to a second principal surface of the magnetic core and are positioned so as not to overlap each other in a normal direction with respect to the first or second principal surfaces. The second conductor portion is located farther from the center of the circuit board than the first conductor portion.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 15, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiromitsu Ito, Hiroyuki Kubo, Kuniaki Yosui
  • Antenna device
    Patent number: 8698686
    Abstract: An antenna device having a magnetic core to be surface-mounted on a circuit substrate includes a pair of coil portions spaced apart from each other at a predetermined interval. The coil portions are connected by a connecting conductor. An end of the magnetic core includes a curved or bent portion curved toward the circuit substrate. This structure defines an RFID antenna device having an improved receiving sensitivity that can be surface-mounted without increasing the thickness of a casing of a mobile electronic device.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: April 15, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiromitsu Ito, Hiroyuki Kubo, Kuniaki Yosui
  • MAGNETIC MATERIAL ANTENNA AND ANTENNA DEVICE
    Publication number: 20140055313
    Abstract: A spiral coil conductor defining its winding central section as a conductor opening section is formed on a flexible substrate. The flexible substrate has a U shaped bend along a line passing through the conductor opening section so as to envelop a magnetic material core. The magnetic material core is arranged in a state where its end face faces the bend of the flexible substrate, and the magnetic material core includes cut shapes provided at a portion of the end face. The portion at the end face faces coil conductor sections at the bend of the flexible substrate, and the cut shapes separate the portion apart from the coil conductor sections.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Eiichi KOBAYASHI, Takuma SAWAYA, Hiroyuki KUBO
  • ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS
    Publication number: 20140049436
    Abstract: An antenna device includes a first coil wound in one direction and a second coil disposed adjacent to the first coil and wound in a direction opposite to the winding direction of the first coil and having conductor openings at the centers of wound coils, and a magnetic core. The magnetic core is inserted into the conductor opening of the first coil and the conductor opening of the second coil. A portion of a conductor line forming the first coil positioned farther away from the second coil than a portion of the conductor line forming the first coil positioned closer to the second coil, and a portion of a conductor line forming the second coil positioned farther away from the first coil than a portion of the conductor line forming the second coil positioned closer to the first coil, are disposed along the first main surface of the magnetic core.
    Type: Application
    Filed: October 28, 2013
    Publication date: February 20, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki KUBO, Kuniaki YOSUI
  • Coil antenna and antenna structure
    Patent number: 8638268
    Abstract: The disclosure describes a compact coil antenna that can operate even if the coil antenna is arranged closely to its conductor plate, and that has a high degree of coupling with a target antenna. A lower coil conductor part and an upper coil conductor part each have a substantially rectangular and spiral form, and the inner end of the lower coil conductor part connects to the inner end of the upper coil conductor part to be connected in series to the inner end of the upper coil conductor part. In the lower coil conductor part and the upper coil conductor part, the arrangement interval in parallel-to-axis parts including segments that are parallel to the direction of the axis of a magnetic-material core is shorter than the arrangement interval of segments in orthogonal-to-axis parts that are orthogonal to the axis of the magnetic-material core.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: January 28, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kuniaki Yosui, Hiroyuki Kubo, Hiromitsu Ito
  • Antenna coil to be mounted on a circuit board and antenna device
    Patent number: 8604993
    Abstract: In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: December 10, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kuniaki Yosui, Hiroyuki Kubo, Hiromitsu Ito
  • Magnetic material antenna and antenna device
    Patent number: 8604992
    Abstract: A spiral coil conductor defining its winding central section as a conductor opening section is formed on a flexible substrate. The flexible substrate has a U shaped bend along a line passing through the conductor opening section so as to envelop a magnetic material core. The magnetic material core is arranged in a state where its end face faces the bend of the flexible substrate, and the magnetic material core includes cut shapes provided at a portion of the end face. The portion at the end face faces coil conductor sections at the bend of the flexible substrate, and the cut shapes separate the portion apart from the coil conductor sections.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 10, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Eiichi Kobayashi, Takuma Sawaya, Hiroyuki Kubo
  • ANTENNA COIL TO BE MOUNTED ON A CIRCUIT BOARD AND ANTENNA DEVICE
    Publication number: 20130249758
    Abstract: In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.
    Type: Application
    Filed: May 22, 2013
    Publication date: September 26, 2013
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Kuniaki YOSUI, Hiroyuki KUBO, Hiromitsu ITO
  • Antenna coil
    Patent number: 8405565
    Abstract: An antenna coil includes a magnetic layer such as a flat magnetic sheet, a transmission coil portion defined by a coiled conductor, a reception coil portion defined by a coiled conductor, a transmission coil connection defined by the conductor and defining a portion of the transmission coil portion, and a reception coil connection defined by the conductor and defining a portion of the reception coil portion. The transmission coil portion and the reception coil portion are at least partly formed side by side on the magnetic layer and are arranged to be connected to a wiring pattern on an external circuit.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: March 26, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Kubo, Hiromitsu Ito, Kuniaki Yosui
  • METHOD OF PRODUCING OPTICAL ELEMENT FORMING MOLD AND OPTICAL ELEMENT FORMING MOLD
    Publication number: 20130056891
    Abstract: Provided is a method of producing an optical element forming mold, the method including forming a ta-C film 12 on a mold matrix 10 for an optical element forming mold by an FCVA process, in which the mold matrix 10 is kept at a floating potential, a voltage is applied to a mold matrix-holding member 2 for holding the mold matrix via insulating members (3a,3b), and a magnet 4 internally provided in the mold matrix forms a magnetic field for applying a magnetic force in a normal direction of a transfer surface of the mold matrix so as to follow a magnetic force applied by a filter coil 22, thereby homogenizing the film quality.
    Type: Application
    Filed: May 25, 2011
    Publication date: March 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroyuki Kubo, Shigeru Hashimoto, Keiji Hirabayashi, Koji Teranishi, Yusuke Owaki
  • Antenna device
    Patent number: 8354971
    Abstract: An antenna device having a magnetic core to be surface-mounted on a circuit substrate includes a pair of coil portions spaced apart from each other at a predetermined interval. The coil portions are connected by a connecting conductor. An end of the magnetic core includes a curved or bent portion curved toward the circuit substrate. This structure defines an RFID antenna device having an improved receiving sensitivity that can be surface-mounted without increasing the thickness of a casing of a mobile electronic device.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: January 15, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiromitsu Ito, Hiroyuki Kubo, Kuniaki Yosui
  • IONTOPHORESIS PATCH
    Publication number: 20120310143
    Abstract: An iontophoresis patch is equipped with a donor gel and a reference gel which are disposed to contact an external conductor, for example, the skin of a patient and thereby output current from a current-carrying device to the external conductor. The iontophoresis patch includes: a donor portion having the donor gel containing a medical agent to be penetrated into the external conductor; a reference portion having a reference gel, mounted with the current-carrying device on the surface on the side opposite to the reference gel, and disposed on the external conductor apart from the donor portion; and an electrode film for supplying current from the current-carrying device to the donor gel and the reference gel.
    Type: Application
    Filed: February 9, 2011
    Publication date: December 6, 2012
    Inventors: Mitsutoshi Yaegashi, Akihiro Hasui, Hiroyuki Kubo
  • Portable electronic device
    Patent number: 8314743
    Abstract: A portable electronic device includes a circuit board and an antenna coil installed on the circuit board. The antenna coil includes a magnetic core and a coil wound at either side of an unwound portion. The winding direction of the coil is changed at either side of the unwound portion. When the length of the magnetic core is defined as X and the distance between two intersecting points at which a virtual line formed by projecting the central line of the magnetic core onto the circuit board intersects the outer periphery of the circuit board is defined as Y, the antenna coil satisfies Y?X?0.8Y.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 20, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Kubo, Hiromitsu Ito, Kuniaki Yosui, Eiichi Kobayashi
  • Magnetic antenna and antenna device
    Patent number: 8294629
    Abstract: A highly sensitive magnetic antenna and an antenna device achieve strong coupling with magnetic flux substantially perpendicular to main surfaces of a magnetic core, an enlarged antenna opening, and increased efficiency of magnetic flux radiation. The magnetic antenna includes a flexible substrate and a magnetic core preferably having a substantially rectangular plate shape. The flexible substrate has a spiral coil conductor located thereon, and the coil conductor has a conductor opening located at the center of the winding center thereof. The flexible substrate is bent in the vicinity of the two sides of the coil conductor spaced apart from the center of the conductor opening and along the two sides of the magnetic core, so as to wrap around the upper surface, left and right surfaces, and portions of the lower surface of the magnetic core.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: October 23, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kuniaki Yosui, Hiroyuki Kubo, Hiromitsu Ito
  • ANTENNA DEVICE AND MOBILE TERMINAL
    Publication number: 20120262348
    Abstract: This disclosure provides an antenna device and a mobile terminal equipped with the antenna device. The antenna device includes a coil conductor spirally wound to have a conductor opening portion at the center of winding and is formed on a flexible substrate. A magnetic sheet is disposed near, or proximal to the flexible substrate and between the coil conductor and a flat conductor of a circuit board. A side of the antenna coil that is near an edge of the flat conductor is bent toward the circuit board.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki Kubo, Hiromitsu Ito, Kuniaki Yosui
  • Antenna coil and antenna device
    Patent number: 8259023
    Abstract: An antenna coil is obtained by winding a flexible substrate around a magnetic core. Conductors are provided on the flexible substrate, whereby a first coil portion and a second coil portion are provided on either side of the magnetic core except for in a middle portion. A non-winding portion including no conductors is provided between the first coil portion and the second coil portion on a main surface of the magnetic core.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: September 4, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Kubo, Hiromitsu Ito, Kuniaki Yosui
  • ANTENNA AND MOBILE TERMINAL
    Publication number: 20120208606
    Abstract: An antenna that suppresses deterioration of communication performance depending on an angle with respect to a reading surface of a reader/writer includes a rectangular spiral coil conductor provided on a flexible substrate. The flexible substrate includes an aperture in a winding center portion of the coil conductor. A magnetic sheet penetrates the aperture of the flexible substrate. An antenna coil is provided near an end of a circuit board. A first conductor portion and a second conductor portion of the coil conductor are provided at positions opposing each other across the aperture. A portion of the magnetic sheet close to the second conductor portion is bent in a direction to get close to the circuit board.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki KUBO, Hiromitsu ITO, Kuniaki YOSUI
  • ANTENNA COIL
    Publication number: 20120188139
    Abstract: An antenna coil includes a magnetic layer such as a flat magnetic sheet, a transmission coil portion defined by a coiled conductor, a reception coil portion defined by a coiled conductor, a transmission coil connection defined by the conductor and defining a portion of the transmission coil portion, and a reception coil connection defined by the conductor and defining a portion of the reception coil portion. The transmission coil portion and the reception coil portion are at least partly formed side by side on the magnetic layer and are arranged to be connected to a wiring pattern on an external circuit.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki KUBO, Hiromitsu ITO, Kuniaki YOSUI
  • ANTENNA DEVICE AND MOBILE TERMINAL
    Publication number: 20120176283
    Abstract: This disclosure provides an antenna device including an antenna coil having a plate-shaped magnetic core with first and second main surfaces and a coil conductor wound around the magnetic core, and a flat conductor adjacent to the antenna coil. For instance, the flat conductor can be a ground electrode formed on or within a circuit substrate. The coil conductor includes a first conductor portion adjacent to the first main surface of the magnetic core and a second conductor portion adjacent to a second main surface thereof. The first conductor portion of the antenna coil is closer to an end portion of the flat conductor than the second conductor portion, with the second main surface of the magnetic core facing the flat conductor.
    Type: Application
    Filed: March 23, 2012
    Publication date: July 12, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Kuniaki YOSUI, Hiromitsu ITO, Hiroyuki KUBO