Patents by Inventor Hidekazu Kobayashi

Hidekazu Kobayashi 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).

  • Publication number: 20120081194
    Abstract: Disclosed is a vehicle-mounted noise filter capable of suppressing electric field coupling between a pair of capacitors in the FM radio band, thereby allowing the intrinsic noise attenuation performance of a noise filter circuit to be exerted even in the FM radio band. The vehicle-mounted noise filter comprises a ground plate, a coil, a pair of capacitors, and a conductive shielding plate. The ground plate is grounded in a vehicle body. A lead wire is wound around the coil. The pair of capacitors are disposed such that the coil is interposed therebetween, and are electrically connected to the coil and the ground plate so as to form ?-type filter circuit. The conductive shielding plate is grounded in the ground plate and is disposed between the pair of capacitors so as to shield the electric field coupling between the pair of capacitors.
    Type: Application
    Filed: May 18, 2010
    Publication date: April 5, 2012
    Applicant: HARADA INDUSTRY CO., LTD
    Inventors: Yasuhiko Nishioka, Hidekazu Kobayashi
  • Publication number: 20120062224
    Abstract: A magnetic balance type current sensor includes a magnetoresistance effect element whose resistance value changes owing to the application of an induction magnetic field from a current to be measured; a feedback coil disposed in the vicinity of the magnetoresistance effect element and generating a cancelling magnetic field cancelling out the induction magnetic field; a magnetic field detection bridge circuit including two outputs causing a voltage difference corresponding to the induction magnetic field to occur; and a magnetic shield attenuating the induction magnetic field and enhancing the cancelling magnetic field, wherein, on the basis of the current flowing through the feedback coil at the time of an equilibrium state in which the induction magnetic field and the cancelling magnetic field are cancelled out, the current to be measured is measured, wherein the feedback coil, the magnetic shield, and the magnetic field detection bridge circuit are formed on a same substrate.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: ALPS GREEN DEVICES CO., LTD.
    Inventors: Yosuke IDE, Masahiro IIZUKA, Masamichi SAITO, Akira TAKAHASHI, Hideharu MATSUO, Tsuyoshi NOJIMA, Shigenobu MIYAJIMA, Naoki SAKATSUME, Kenji ICHINOHE, Yoshihiro NISHIYAMA, Tatsuya KOGURE, Hidekazu KOBAYASHI
  • Publication number: 20120062215
    Abstract: A magnetic-balance-system current sensor includes: a magnetoresistive element, a resistance value of the magnetoresistive element being changed by applying an induction magnetic field generated by a measurement target current; magnetic cores disposed near the magnetoresistive element; a feedback coil disposed near the magnetoresistive element and configured to generate a cancelling magnetic field that cancels out the induction magnetic field; and a magnetic-field detecting bridge circuit having two outputs. The measurement target current is measured on the basis of a current flowing through the feedback coil when the induction magnetic field and the induction magnetic field and the cancelling magnetic field cancel each other out. The feedback coil, the magnetic cores, and the magnetic-field detecting bridge circuit are formed on a same substrate. The feedback coil is of a spiral type, and the magnetic cores are provided above and below the feedback coil.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: ALPS GREEN DEVICES CO., LTD.
    Inventors: Yosuke IDE, Masamichi SAITO, Akira TAKAHASHI, Tsuyoshi NOJIMA, Shigenobu MIYAJIMA, Naoki SAKATSUME, Kenji ICHINOHE, Yoshihiro NISHIYAMA, Tatsuya KOGURE, Hidekazu KOBAYASHI, Masahiro IIZUKA
  • Patent number: 8130476
    Abstract: A tunneling magnetic sensing element includes: a pinned magnetic layer whose direction of magnetization is pinned in one direction; an insulating barrier layer; and a free magnetic layer whose direction of magnetization changes in response to an external magnetic field. The pinned magnetic layer, the insulating barrier layer and the free magnetic layer are deposited in the named order. A first protective layer composed of a platinum-group element is disposed on the free magnetic layer, and a second protective layer composed of Ti is disposed on the first protective layer.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: March 6, 2012
    Assignee: TDK Corporation
    Inventors: Kazumasa Nishimura, Masamichi Saito, Yoshihiro Nishiyama, Hidekazu Kobayashi, Naoya Hasegawa
  • Patent number: 8124253
    Abstract: A tunneling magnetic sensing element includes a laminate in which an underlayer, a seed layer, an antiferromagnetic layer, a pinned magnetic layer, an insulating barrier layer, and a free magnetic layer are laminated in order from below. The insulating barrier layer is made of Mg—O. The underlayer is made of Ti, and the seed layer is made of one selected from a group consisting of Ni—Fe—Cr and Ru.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: February 28, 2012
    Assignee: ALPS Electric Co., Ltd.
    Inventors: Kazumasa Nishimura, Masamichi Saito, Yosuke Ide, Ryo Nakabayashi, Yoshihiro Nishiyama, Hidekazu Kobayashi, Naoya Hasegawa
  • Patent number: 8106577
    Abstract: An organic EL device includes light-reflective electrodes; light-transmissive electrodes; organic EL layers that are respectively provided between the light-reflective electrodes and the light-transmissive electrodes to emit a plurality of color light components, the organic EL layer emitting a different color light component in each pixel; and transflective layers that are selectively provide in predetermined color pixels to reflect or transmit light emitted from the organic EL layers, respectively, each transflective layer being opposite to the light-reflective electrode with the organic EL layer interposed therebetween.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: January 31, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Patent number: 8093587
    Abstract: An organic EL device includes a light-emitting element having a first electrode disposed above a substrate, a second electrode arranged above the first electrode, and a light emission functional layer arranged between the first and second electrodes. The second electrode includes a mixture layer composed of a mixture of an electron-injecting material and a reducing material for reducing the electron-injecting material and a transparent electrically conductive layer formed on the mixture layer.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 10, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Koya Shiratori, Hidekazu Kobayashi
  • Patent number: 8076838
    Abstract: A light emitting device includes a plurality of types of light emitting elements including at least a red light emitting element that outputs red light, a green light emitting element that outputs green light, and a blue light emitting element that outputs blue light.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: December 13, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Patent number: 8076687
    Abstract: A light emitting device includes: a light emitting element which includes a first electrode layer, a second electrode layer, and a light emitting function layer disposed between the first electrode and the second electrode; a reflection layer which reflects light emitted from the light emitting function layer toward the light emitting function layer; and a translucent transflective layer which is disposed opposite the reflection layer with the light emitting function layer interposed therebetween to reflect some of the light emitted from the light emitting function layer toward the light emitting function layer and to transmit the remainder of the light. The translucent transflective layer is centered between a first layer having a refractive index n1 and being disposed on a side of the reflection layer and a second layer having a refractive index n2 (where n2<n1) and being disposed opposite the first layer.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: December 13, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hidekazu Kobayashi, Koya Shiratori
  • Patent number: 8045300
    Abstract: A free magnetic layer has a laminated structure in which a first magnetic sublayer composed of Co—Fe or Fe and a second magnetic sublayer composed of Co—Fe—B or Fe—B are formed, in that order, on an insulating barrier layer composed of Mg—O. This effectively improves the rate of change in resistance (?R/R) compared with the related art.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: October 25, 2011
    Assignee: TDK Corporation
    Inventors: Kazumasa Nishimura, Yosuke Ide, Naoya Hasegawa, Masamichi Saito, Yoshihiro Nishiyama, Ryo Nakabayashi, Hidekazu Kobayashi
  • Patent number: 8040052
    Abstract: A light-emitting device includes a plurality of pixels constituting a screen, each of the plurality of pixels including four subpixels, which are a red subpixel, a green subpixel, a blue subpixel, and a white subpixel. The red subpixel has a light-emitting layer formed of a red-light-emitting material that emits red light and extending along the screen, and a color filter provided above the light-emitting layer to transmit red light. The green subpixel has a light-emitting layer formed of a white-light-emitting material that emits white light and extending along the screen, and a color filter provided above the light-emitting layer to transmit green light. The blue subpixel has a light-emitting layer formed of a blue-light-emitting material that emits blue light and extending along the screen, and a color filter provided above the light-emitting layer to transmit blue light. The white subpixel has a light-emitting layer formed of the white-light-emitting material and extending along the screen.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: October 18, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Patent number: 8022620
    Abstract: A display device includes a substrate, light-emitting elements formed on the substrate, a reflective layer disposed between the substrate and the light-emitting elements and reflecting the light emitted from the light-emitting elements. The light-emitting elements each include a transparent layer that contact the reflective layer, a light-emitting layer disposed on the upper surface of the transparent layer, and an electrode layer with transparency disposed on a side of the light-emitting layer. The distance between the reflective layer and the electrode layer in each of the light-emitting elements is set such that a light component of a specific color in the light emitted from the corresponding light-emitting layer is enhanced by interference and emitted from the electrode layer. The light-emitting elements include light-emitting elements in which blue and red light components in the light emitted from the light-emitting layers are simultaneously enhanced and emitted from the electrode layers.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: September 20, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Publication number: 20110221434
    Abstract: A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 15, 2011
    Applicant: ALPS GREEN DEVICES CO., LTD.
    Inventors: Yoshihiro NISHIYAMA, Masamichi SAITO, Akira TAKAHASHI, Yosuke IDE, Hidekazu KOBAYASHI, Masahiro IIZUKA
  • Patent number: 8009391
    Abstract: An underlying layer is composed of Co—Fe—B that is an amorphous magnetic material. Thus, the upper surface of the underlying layer can be taken as a lower shield layer-side reference position for obtaining a gap length (GL) between upper and lower shields, resulting in a narrower gap than before. In addition, since the underlying layer has an amorphous structure, the underlying layer does not adversely affect the crystalline orientation of individual layers to be formed thereon, and the surface of the underlying layer has good planarizability. Accordingly, PW50 (half-amplitude pulse width) and SN ratio can be improved more than before without causing a decrease in rate of change in resistance (? R/R) or the like, thereby achieving a structure suitable for increasing recording density.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 30, 2011
    Assignee: TDK Corporation
    Inventors: Kenichi Tanaka, Eiji Umetsu, Kazuaki Ikarashi, Kota Asatsuma, Norimasa Okanishi, Yoshihiro Nishiyama, Masamichi Saito, Yosuke Ide, Kazumasa Nishimura, Ryo Nakabayashi, Hidekazu Kobayashi, Akio Hanada, Naoya Hasegawa
  • Publication number: 20110205456
    Abstract: An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state.
    Type: Application
    Filed: December 15, 2010
    Publication date: August 25, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yasushi MIZOGUCHI, Hidekazu KOBAYASHI, Shuichi WAKABAYASHI, Taisuke YAMAUCHI, Takashi TAKEDA
  • Patent number: 7994704
    Abstract: A light-emitting device includes: a substrate; a light reflection layer that is formed on the substrate and reflects light; a first electrode that is formed on the light reflection layer and transmits light; a light-emitting layer that is formed on the first electrode and emits light; a second electrode that is formed on the light-emitting layer and transmits a part of light from the light-emitting layer and reflects the rest of the light from the light-emitting layer; and a conductive transflective layer that is formed on the second electrode and that transmits a part of light from the second electrode and reflects the rest of the light from the second electrode. A work function of the second electrode is 4 eV (electron volts) or less. The conductive transflective layer is formed of a metal material having a higher optical reflectance than the second electrode.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 9, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Publication number: 20110156798
    Abstract: Magnetoresistive effect elements R1 to R4 are a TMR element or CPP-GMR element. A multilayer film forming the magnetoresistive effect elements is formed to have a width dimension T1 and a length dimension L1 perpendicular to the width dimension T1. The length dimension L1 is longer than the width dimension T1. The width dimension of magnetic field generators of the coil is T2. The multilayer film 31 is positioned within the width dimension T3 of 60% in total of 30% each to the width dimension T2 of the magnetic field generators 3 and 4 of the coil in the direction towards both sides from the center of the width dimension T2 when seen in a plan view.
    Type: Application
    Filed: March 9, 2011
    Publication date: June 30, 2011
    Applicant: ALPS GREEN DEVICES CO., LTD.
    Inventors: Yosuke IDE, Masamichi SAITO, Akira TAKAHASHI, Masahiro IIZUKA, Yoshihiro NISHIYAMA, Hidekazu KOBAYASHI
  • Patent number: 7969690
    Abstract: In a tunneling magnetoresistive element, an insulating barrier layer is made of Mg—O, and a first pinned magnetic layer has a laminated structure in which a nonmagnetic metal sublayer made of Ta is interposed between a lower ferromagnetic sublayer and an upper ferromagnetic sublayer. The nonmagnetic metal sublayer has an average thickness of about 1 ? or more and about 5 ? or less.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: June 28, 2011
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kazumasa Nishimura, Masamichi Saito, Yosuke Ide, Ryo Nakabayashi, Yoshihiro Nishiyama, Hidekazu Kobayashi, Naoya Hasegawa
  • Patent number: 7969693
    Abstract: A tunnel magnetoresistive sensor includes a pinned magnetic layer, an insulating barrier layer formed of Mg—O, and a free magnetic layer. A barrier-layer-side magnetic sublayer constituting at least part of the pinned magnetic layer and being in contact with the insulating barrier layer includes a first magnetic region formed of CoFeB or FeB and a second magnetic region formed of CoFe or Fe. The second magnetic region is disposed between the first magnetic region and the insulating barrier layer.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: June 28, 2011
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kazuaki Ikarashi, Eiji Umetsu, Kenichi Tanaka, Kazumasa Nishimura, Masamichi Saito, Yosuke Ide, Ryo Nakabayashi, Yoshihiro Nishiyama, Hidekazu Kobayashi, Naoya Hasegawa
  • Publication number: 20110148944
    Abstract: A display device includes a light emitting functional layer disposed between a first and second substrates; a first pixel which emits light to the second substrate and has a first pixel electrode disposed between the light emitting functional layer and the first substrate, a second electrode disposed between the light emitting functional layer and the second substrate, and a first reflecting layer disposed between the first pixel electrode and the first substrate; a second pixel which emits light to the first substrate side and has a second pixel electrode disposed between the light emitting functional layer and the first substrate, a second electrode disposed between the light emitting functional layer and the second substrate, and a second reflecting layer disposed between the second electrode and the second substrate; and a driving element which drives the first and second pixel electrodes is disposed above first substrate.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 23, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hidekazu KOBAYASHI