Patents by Inventor Kazuhiko Hayashi

Kazuhiko Hayashi 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: 6999287
    Abstract: A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: February 14, 2006
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Junichi Fujikata, Tsutomu Ishi, Shigeru Mori, Keishi Ohashi, Masafumi Nakada, Kiyokazu Nagahara, Kunihiko Ishihara, Nobuyuki Ishiwata
  • Publication number: 20060007606
    Abstract: A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
    Type: Application
    Filed: September 16, 2005
    Publication date: January 12, 2006
    Inventors: Kazuhiko Hayashi, Junichi Fujikata, Tsutomu Ishi, Shigeru Mori, Keishi Ohashi, Masafumi Nakada, Kiyokazu Nagahara, Kunihiko Ishihara, Nobuyuki Ishiwata
  • Publication number: 20050219772
    Abstract: In a magnetoresistive effect transducer including a pinning layer, a pinned layer, a free layer and a non-magnetic layer inserted between the pinned layer and the free layer, a longitudinal bias layer is connected directly to a part of the free layer to apply a bias magnetic field to the free layer, thus biasing a magnetization direction of the free layer so that the magnetization direction of the free layer coincides with that of the longitudinal bias layer.
    Type: Application
    Filed: May 31, 2005
    Publication date: October 6, 2005
    Applicant: NEC Corporation
    Inventors: Kazuhiko Hayashi, Keishi Ohashi, Nobuyuki Ishiwata, Masafumi Nakada, Tsutomu Ishi, Hiroaki Honjou, Kunihiko Ishihara, Jun-Ichi Fujikata, Hisao Matsutera, Hisanao Tsuge, Atsushi Kamijo
  • Patent number: 6950290
    Abstract: In a magnetoresistive effect transducer including a pinning layer, a pinned layer, a free layer and a non-magnetic layer inserted between the pinned layer and the free layer, a longitudinal bias layer is connected directly to a part of the free layer to apply a bias magnetic field to the free layer, thus biasing a magnetization direction of the free layer so that the magnetization direction of the free layer coincides with that of the longitudinal bias layer.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: September 27, 2005
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Keishi Ohashi, Nobuyuki Ishiwata, Masafumi Nakada, Tsutomu Ishi, Hiroaki Honjou, Kunihiko Ishihara, Jun-Ichi Fujikata, Hisao Matsutera, Hisanao Tsuge, Atsushi Kamijo
  • Publication number: 20050183416
    Abstract: A work vehicle with a hydrostatic steering system is disclosed which is capable of performing optimum control of the absorption torque of a hydraulic pump according to running load; capable of preferentially ensuring turning performance and implement speed when running load is relatively low; and capable of ensuring desired turning performance even when running load is relatively high. To this end, a bulldozer with a hydrostatic steering system, wherein the power of a hydraulic motor driven by pressure oil fed from a hydraulic pump operated by an engine is transmitted to right and left crawler tracks through a differential steering means composed of planetary gear trains etc., is designed to control the absorption torque of the hydraulic pump according to the speed ratio of a torque converter calculated by a speed ratio operation unit.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 25, 2005
    Applicant: KOMATSU LTD.
    Inventors: Kazuhiko Hayashi, Mitsuaki Nakamura
  • Patent number: 6934132
    Abstract: A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed inmediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: August 23, 2005
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Junichi Fujikata, Tsutomu Ishi, Shigeru Mori, Keishi Ohashi, Masafumi Nakada, Kiyokazu Nagahara, Kunihiko Ishihara, Nobuyuki Ishiwata
  • Patent number: 6903908
    Abstract: A magnetoresistive effect sensor uses a shielded-type magnetoresistive effect element using a magnetoresistive effect film formed by a basic configuration of a combination of a free layer, a barrier layer formed on the free layer, and a fixed layer formed on the barrier layer, wherein a sensing current flows substantially perpendicular to the magnetoresistive effect film, and wherein an amorphous material or a microcrystalline material is used in a lower shield.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: June 7, 2005
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Keishi Ohashi, Nobuyuki Ishiwata, Masafumi Nakada, Eizo Fukami, Kiyokazu Nagahara, Hiroaki Honjo, Junichi Fujikata, Kunihiko Ishihara, Shigeru Mori
  • Patent number: 6903230
    Abstract: It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 7, 2005
    Assignee: Asahi Glass Company, Limited
    Inventors: Shuzhong Wang, Kazuhiko Hayashi, Shinsuke Kaga, Kazuya Oharu
  • Publication number: 20050067947
    Abstract: A light-emitting body of the present invention includes an anode and a cathode at least partly facing the anode with the intermediary of a light-emitting material layer. An auxiliary electrode is formed, via an insulation layer, on the surface of the light-emitting body opposite to the surface where the anode faces the cathode via the light-emitting material layer. The cathode can be formed of a material that corrodes little. The light-emitting body therefore extends the life of a light-emitting device and therefore the life of a light-emitting display.
    Type: Application
    Filed: October 4, 2004
    Publication date: March 31, 2005
    Inventors: Kazuhiko Hayashi, Atsushi Oda
  • Publication number: 20050016633
    Abstract: The method of manufacturing soft magnetic articles comprises a step of preparing a melt solution containing soft magnetic materials and a step of forming soft magnetic particles from the melt solution in a magnetic field by an atomization rapid solidification method.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 27, 2005
    Inventors: Hirokazu Kugai, Haruhisa Toyoda, Naoto Igarashi, Kazuhiro Hirose, Takao Nishioka, Akihiko Ikegaya, Ryosuke Hata, Hitoshi Oyama, Kenichi Sato, Kazuhiko Hayashi, Masayuki Hirose, koji Muranaka
  • Patent number: 6844064
    Abstract: A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires (1, 2) with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction (L) formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction (L) when the two oxide superconducting wires (1) and (2) connected with each other are bent.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: January 18, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Naoki Ayai, Ryosuke Hata, Hiromi Takei, Kazuhiko Hayashi, Takeshi Hikata
  • Patent number: 6840647
    Abstract: A lighting device includes (a) an electroluminescence device which acts as a light source, and (b) an optical conductor which introduces a light emitted from the electroluminescence device, to a liquid crystal display device. The electroluminescence device is formed on an end surface of the optical conductor. The lighting device may be used as a backlight source in a liquid crystal display device.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: January 11, 2005
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Ichiro Fujieda, Atsushi Oda, Setsuo Kaneko
  • Publication number: 20040257719
    Abstract: In a magnetoresistive effect element using a ferromagnetic tunnel junction having a tunnel barrier layer sandwiched between at least a pair of ferromagnetic layers, a magnetization free layer comprising one of the ferromagnetic layers is composed of a single layer of a material having an amorphous or microcrystal structure or a material layer the main portion of which has an amorphous or microcrystal structure. The magnetoresistive effect element can produce excellent magnetic-resistance characteristics, and a magnetic memory element and a magnetic memory device using the magnetoresistive effect element as a memory element thereof can improve both of write and read characteristics at the same time.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 23, 2004
    Inventors: Kazuhiro Ohba, Kazuhiko Hayashi, Hiroshi Kano, Kazuhiro Bessho, Tetsuya Mizuguchi, Yutaka Higo, Masanori Hosomi, Tetsuya Yamamoto, Hiroaki Narisawa, Takeyuki Sone, Keitaro Endo, Shinya Kubo
  • Publication number: 20040245937
    Abstract: An emitting device in which a lower electrode pattern is formed on a substrate, an emitting layer pattern is formed on the lower electrode pattern, and a transparent electrode is formed on the emitting layer pattern and an emitting body having a structure in which an organic thin film emits light when an application current is applied to it are disclosed. The pattern of the transparent electrode is larger than that of the lower electrode. The pattern of the transparent electrode is formed over the entire area of the pattern of the lower electrode. The pattern of the transparent electrode is made larger than that of the luminous layer. The pattern of the transparent electrode is formed over the entire area of that of the luminous layer.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 9, 2004
    Inventors: Kazuhiko Hayashi, Takashi Funuchi, Shinzo Tsuboi, Ichiro Fujieda
  • Patent number: 6828508
    Abstract: A high temperature oxide superconducting wire is provided which is capable of preventing metal located on the outer periphery of the superconducting wire from diffusing into a superconductor to achieve restriction of reduction in the critical current density. The high temperature oxide superconducting wire includes a high temperature oxide superconductor 1, a sheathing body 2 formed of material containing silver for coating the high temperature oxide superconductor 1, a heat-resistant oxide ceramic material 3 for coating the sheathing body 2, and a coating body 4 which is inactive relative to the heat-resistant oxide ceramic material 3 in a high temperature oxidative atmosphere.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 7, 2004
    Assignees: Sumitomo Electric Industries, Ltd.
    Inventors: Naoki Ayai, Munetsugu Ueyama, Kazuhiko Hayashi, Hiroshi Maeda, Mitsunori Sato
  • Patent number: 6824083
    Abstract: A fluid jetting device is comprised of: a plurality of chambers arranged in a matrix form; nozzles formed in the plural chambers, respectively; a fluid pressure applying portion arranged on at least one planes of the plural chambers; a plurality of fluid pool sub-streams for supplying fluids to the plural chambers; a fluid pool main stream connected to one edges of the plural fluid pool sub-streams; and a fluid supplying portion for supplying a predetermined fluid to the fluid pool main stream. The fluid supplying portion is connected to a portion of the fluid pool main stream in the vicinity of this fluid pool main stream along a longitudinal direction thereof.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: November 30, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masakazu Okuda, Kazuhiko Hayashi, Torahiko Kanda, Yoshihiro Hagiwara, Fuminori Takizawa
  • Patent number: 6806643
    Abstract: A light-emitting body of the present invention includes an anode and a cathode at least partly facing the anode with the intermediary of a light-emitting material layer. An auxiliary electrode is formed, via an insulation layer, on the surface of the light-emitting body opposite to the surface where the anode faces the cathode via the light-emitting material layer. The cathode can be formed of a material that corrodes little. The light-emitting body therefore extends the life of a light-emitting device and therefore the life of a light-emitting display.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: October 19, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kazuhiko Hayashi, Atsushi Oda
  • Publication number: 20040190198
    Abstract: By inserting a first antistripping layer comprising a first non-magnetic layer 22 and a first conductive layer 23 between a first magnetic layer 16 and a magnetic separation layer 13, adhesion between the first conductive layer 23 and the magnetic separation layer 13 is improved to prevent the first magnetic layer 16 from stripping. In addition, by inserting a second antistripping layer comprising a second non-magnetic layer 24 and a second conductive layer 25 between a second magnetic layer 21 and a magnetic gap layer 17, adhesion between the second conductive layer 24 and the magnetic gap layer 17 is improved to prevent the second magnetic layer 25 from stripping.
    Type: Application
    Filed: March 31, 2004
    Publication date: September 30, 2004
    Inventors: Hiroaki Honjo, Tsutomu Ishi, Mikiko Saito, Shinsaku Saito, Tamaki Toba, Yoshihiro Nonaka, Kazuhiko Hayashi, Nobuyuki Ishiwata
  • Publication number: 20040189646
    Abstract: First and second areas are designated in a source picture. A start picture is generated from a portion of the source picture which extends in the first area. An end picture is generated from a portion of the source picture which extends in the second area. At least one third area is designated in the source picture. The third area extends between the first and second areas. An intermediate picture is generated from a portion of the source picture which extends in the third area. An image file of a prescribed format is generated which contains data representative of animation pictures including the start picture, the intermediate picture, and the end picture. The image file is related with an audio file containing data representative of audio information. A file group including the image file and the audio file is generated. The file group is recorded on a recording medium.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 30, 2004
    Inventors: Kazuhiko Hayashi, Shigenori Abe
  • Patent number: 6798626
    Abstract: A magnetoresistive effect element which is easy to manufacture and in which a sense current is prevented from bypassing a barrier layer is provided. Also provided are a method for manufacturing the element and a magnetic recording apparatus utilizing the element. This magnetoresistive effect element utilizes an MTJ film which comprises, for forming its basic structure, a free layer, a barrier layer, a pinned layer and a pinning layer, wherein an oxide or a nitride layer is formed by oxidizing or nitriding metallic materials constituting the pinned layer and pinning layer.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: September 28, 2004
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Keishi Ohashi, Nobuyuki Ishiwata, Masafumi Nakada, Eizo Fukami, Kiyokazu Nagahara, Hiroaki Honjou, Shinsaku Saitoh