Patents by Inventor Taro Oike

Taro Oike 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: 9855846
    Abstract: A switch device includes a push switch including first and second push portions that are parallel arranged, and an operating switch arranged between the first and second push portions and including a switch operation direction different from a switch operation direction of the first and second push portions. The operating switch protrudes from an operation surface of the first and second push portions so as to allow the first and second push portions to be individually recognized when operating the push switch.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 2, 2018
    Assignees: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, MAZDA MOTOR CORPORATION
    Inventors: Yoshiaki Nabe, Susumu Mega, Hiroki Danjoh, Taro Oike, Keiichirou Yamamoto
  • Publication number: 20170276938
    Abstract: The present application discloses a head-up display device which is mounted on a vehicle. The head-up display device includes a projection device which emits image light onto a reflective surface including a first area, and a second area below the first area. The image light includes first image light representing first information including information about an external factor outside the vehicle, and second image light representing second information about the vehicle itself. The projection device emits the first image light onto the first area and the second image light onto the second area.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 28, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hidenobu NAKASHIMA, Yo KITAMURA, Hado MOROKAWA, Seiji HISADA, Taro OIKE, Kenji OKADA
  • Publication number: 20170025236
    Abstract: A switch device includes a push switch including first and second push portions that are parallel arranged, and an operating switch arranged between the first and second push portions and including a switch operation direction different from a switch operation direction of the first and second push portions. The operating switch protrudes from an operation surface of the first and second push portions so as to allow the first and second push portions to be individually recognized when operating the push switch.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 26, 2017
    Inventors: Yoshiaki NABE, Susumu MEGA, Hiroki DANJOH, Taro OIKE, Keiichirou YAMAMOTO
  • Patent number: 8867168
    Abstract: A magnetic head includes a main pole, a write shield, and a return path section. The write shield includes first and second shield portions located on opposite sides of the main pole in the track width direction. The return path section includes first and second yoke portions located on opposite sides of the main pole in the track width direction. The first yoke portion is connected to the first shield portion. The second yoke portion is connected to the second shield portion. A coil surrounds at least part of the entire outer periphery of the main pole when viewed from a medium facing surface.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: October 21, 2014
    Assignee: TDK Corporation
    Inventors: Norikazu Ota, Masahiro Saito, Taro Oike, Takeo Kagami, Yosuke Antoku, Kenkichi Anagawa, Kenta Hara, Tetsuro Sasaki, Shingo Miyata, Katsuki Kurihara
  • Publication number: 20140160597
    Abstract: A magnetic head includes a main pole, a write shield, and a return path section. The write shield includes first and second shield portions located on opposite sides of the main pole in the track width direction. The return path section includes first and second yoke portions located on opposite sides of the main pole in the track width direction. The first yoke portion is connected to the first shield portion. The second yoke portion is connected to the second shield portion. A coil surrounds at least part of the entire outer periphery of the main pole when viewed from a medium facing surface.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: TDK CORPORATION
    Inventors: Norikazu OTA, Masahiro SAITO, Taro OIKE, Takeo KAGAMI, Yosuke ANTOKU, Kenkichi ANAGAWA, Kenta HARA, Tetsuro SASAKI, Shingo MIYATA, Katsuki KURIHARA
  • Patent number: 8144427
    Abstract: The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: March 27, 2012
    Assignee: TDK Corporation
    Inventors: Yosuke Antoku, Takeo Kagami, Katsuki Kurihara, Taro Oike, Masashi Sano
  • Patent number: 7724471
    Abstract: A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: May 25, 2010
    Assignees: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Takamitsu Sakamoto, Taro Oike, Katsuki Kurihara, Eric Cheuk Wing Leung
  • Publication number: 20100123966
    Abstract: The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Applicant: TDK CORPORATION
    Inventors: Yosuke ANTOKU, Takeo Kagami, Katsuki Kurihara, Taro Oike, Masashi Sano
  • Patent number: 7649713
    Abstract: A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: January 19, 2010
    Assignee: TDK Corporation
    Inventors: Norikazu Ota, Katsuki Kurihara, Hiraku Hirabayashi, Taro Oike, Hiroki Matsukuma
  • Patent number: 7612965
    Abstract: A thin-film magnetic head with a higher protrusion efficiency is provided, which comprises: a substrate with an air bearing surface (ABS); a read head element including a lower and upper shield layers, and a write head element including a magnetic pole layer; a heating element provided in a position opposite to the ABS in relation to the read and write head elements; and a heatsink element including a heatsink layer provided adjacent to an end opposite to an end in the ABS side of at least one layer of the lower and upper shield layers and the magnetic pole layer, the heatsink element having a shape that a pattern width in the track-width direction of an end portion in the ABS side is larger than a pattern width in the track-width direction of an end portion opposite to the end portion in the ABS side.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 3, 2009
    Assignee: TDK Corporation
    Inventors: Katsuki Kurihara, Taro Oike, Hiraku Hirabayashi, Norikazu Ota
  • Patent number: 7538978
    Abstract: A heat assisted magnetic recording head is provided, which can prevent an effect of a heat in a laser diode when a magnetic recording region is heated by a heating laser beam and which can reduce its size and weight. In the heat assisted magnetic recording head, a recording magnetic pole, a magnetic recording element, a magnetic read element, an optical waveguide, and an irradiating optical waveguide are attached to a floating slider provided below a suspension. The laser diode is arranged on an opposite side of the suspension to the floating slider. The heating laser beam emitted from the laser diode is directed to the irradiating optical waveguide through the optical waveguide, so that a magnetic recording medium is irradiated with the heating laser beam exiting from the irradiating optical waveguide.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: May 26, 2009
    Assignee: TDK Corporation
    Inventors: Isamu Sato, Taro Oike, Naoki Hanashima
  • Patent number: 7372667
    Abstract: A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the write gap layer, a width WP2 in a track-width direction at a facing-to-magnetic-medium top end of the upper magnetic pole being larger than a width WP1 in the track-width direction at a facing-to-magnetic-medium top end of the lower magnetic pole, and a distance FPDP2 between the top end of the upper magnetic pole and a flare point of the upper magnetic pole being smaller than a distance FPDP1 between the top end of the lower magnetic pole and a flare point of the lower magnetic pole, is provided.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: May 13, 2008
    Assignee: TDK Corporation
    Inventors: Taro Oike, Hiraku Hirabayashi, Shin Narushima, Takamitsu Sakamoto, Kiyoshi Noguchi
  • Patent number: 7321480
    Abstract: A thin-film magnetic head includes a lower magnetic layer, an upper magnetic layer, a recording gap layer, and a thin-film coil. The lower magnetic layer has a first magnetic pole tip layer, and a first yoke layer which is connected to the first magnetic pole tip layer. The first yoke layer has an extended part which is relatively thick and a reduced part which is relatively thin in the area in which the first yoke layer confronts the first magnetic pole tip layer, the extended part being positioned on the side of the air bearing surface. Further, the first magnetic pole tip layer is connected to the first yoke layer at the extended part, and is insulated from the first yoke layer at the reduced part.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: January 22, 2008
    Assignee: TDK Corporation
    Inventors: Taro Oike, Kiyoshi Noguchi, Shin Narushima, Takamitsu Sakamoto, Hiraku Hirabayashi
  • Patent number: 7283328
    Abstract: A thin-film magnetic head includes at least one inductive write head element and at least one read magnetic head element, capable of controlling a spacing between a magnetic recording medium and the at least one magnetic read head element by heating. A gain SG (nm/° C.) of the spacing is greater than a spacing gain threshold SGTHLD (nm/° C.) defined by the following expression: SGLIMT=A*dPTP+B A=1.4642E?02*exp(?6.6769E?05*LRDMF) B=4.9602E?01*exp(?2.0423E?03*LRDMF) where dPTP represents an amount of change in protrusion (nm) of a top end of the at least one inductive write head element and/or the at least one read magnetic head element by heating, and LRDMF represents a line recording density (kFCI) at a frequency half of the maximum recording frequency.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: October 16, 2007
    Assignee: TDK Corporation
    Inventors: Norikazu Ota, Kenji Inage, Taro Oike
  • Patent number: 7248435
    Abstract: A bottom pole layer and a top pole layer respectively incorporate pole portion layers. Cross sections of the pole portion layers and a gap layer parallel to the top surface of a substrate are of the same shapes. The aggregate of the pole portion layers and the gap layer includes a first portion having a width W that defines the track width, and a second portion having a width greater than the width W of the first portion. L/W falls within a range of 2 to 5 inclusive, where L is the distance from a medium facing surface to the interface between the first portion and the second portion. S/(W×L) falls within a range of 5 to 40 inclusive, where S is the area of the cross section of the aggregate parallel to the top surface of the substrate.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: July 24, 2007
    Assignee: TDK Corporation
    Inventors: Taro Oike, Kiyoshi Noguchi, Seiji Yari
  • Patent number: 7239480
    Abstract: A thin film magnetic head is provided to reduce excess magnetostatic leakage field in order to generate a sufficient recording magnetic field. The pole end portion has a width to define a recording track width. The pole rear portion has one end which is magnetically connected with the pole end portion at or in the vicinity of an edge portion of an insulating film and defines a first flare point, the other end which is connected with the upper yoke portion and defines a second flare point, and both side edges in the track width direction which are inclined so that the width in the track width direction gradually increases from the second flare point toward the first flare point. The width of the pole end portion at the first flare point is smaller than the maximum width of the pole rear portion.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: July 3, 2007
    Assignee: TDK Corporation
    Inventors: Hiraku Hirabayashi, Kiyoshi Noguchi, Taro Oike, Shin Narushima, Takamitsu Sakamoto
  • Patent number: 7197814
    Abstract: A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: April 3, 2007
    Assignee: TDK Corporation
    Inventors: Taro Oike, Makoto Yoshida, Tetsuo Miyazaki, Shin Narushima, Hiroyuki Miyamoto
  • Publication number: 20060291098
    Abstract: A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
    Type: Application
    Filed: January 18, 2006
    Publication date: December 28, 2006
    Inventors: Norikazu Ota, Katsuki Kurihara, Hiraku Hirabayashi, Taro Oike, Hiroki Matsukuma
  • Publication number: 20060187564
    Abstract: A heat assisted magnetic recording head is provided, which can prevent an effect of a heat in a laser diode when a magnetic recording region is heated by a heating laser beam and which can reduce its size and weight. In the heat assisted magnetic recording head, a recording magnetic pole, a magnetic recording element, a magnetic read element, an optical waveguide, and an irradiating optical waveguide are attached to a floating slider provided below a suspension. The laser diode is arranged on an opposite side of the suspension to the floating slider. The heating laser beam emitted from the laser diode is directed to the irradiating optical waveguide through the optical waveguide, so that a magnetic recording medium is irradiated with the heating laser beam exiting from the irradiating optical waveguide.
    Type: Application
    Filed: December 28, 2005
    Publication date: August 24, 2006
    Applicant: TDK Corporation
    Inventors: Isamu Sato, Taro Oike, Naoki Hanashima
  • Publication number: 20060126224
    Abstract: A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
    Type: Application
    Filed: November 21, 2005
    Publication date: June 15, 2006
    Applicants: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Takamitsu Sakamoto, Taro Oike, Katsuki Kurihara, Eric Leung