Patents by Inventor Kazuhide Tanaka

Kazuhide Tanaka 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: 20200301183
    Abstract: According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 24, 2020
    Applicant: Japan Display Inc.
    Inventors: Hitoshi TANAKA, Kazuhide Mochizuki
  • Publication number: 20200276671
    Abstract: A laser machining apparatus 1 includes: a laser head that is supported by a laser moving device so as to be movable in X, Y, and Z directions above a motor driven conveyor that transports a workpiece loaded thereon. The laser head includes protection glass for protecting a laser focusing lens; an ultraviolet irradiation device disposed beside the conveyor such that a laser light axis and an ultraviolet ray axis are parallel to each other; and a control device that controls the components of the laser machining apparatus so that the ultraviolet irradiation device radiates UV rays on the protection glass in a state in which a UV irradiation port faces a laser irradiation port of the laser head, thus cleaning the protection glass without removing it from the laser head.
    Type: Application
    Filed: February 8, 2018
    Publication date: September 3, 2020
    Inventors: Toshiyuki TANAKA, Kazuhide MATSUO, Shinichi MIYASAKA, Satoshi OYAMA
  • Patent number: 10705399
    Abstract: According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: July 7, 2020
    Assignee: Japan Display Inc.
    Inventors: Hitoshi Tanaka, Kazuhide Mochizuki
  • Publication number: 20200096800
    Abstract: According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: Japan Display Inc.
    Inventors: Hitoshi Tanaka, Kazuhide Mochizuki
  • Publication number: 20200086484
    Abstract: According to an embodiment, an article posture changing device includes: a first end effector configured to grasp a projected tag of an article by adsorption; an arm unit configured to support the first end effector and move the first end effector along at least a vertical direction; and a controller configured to control the arm unit and the first end effector to grasp the tag, lift the article upward, separate the article from a placement surface, change an angle of the article by weight thereof, move the article downward, place the article on the placement surface, and release the grasp of the tag.
    Type: Application
    Filed: February 28, 2019
    Publication date: March 19, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Daisuke YAMAMOTO, Takafumi SONOURA, Junji OAKI, Hideki OGAWA, Junya TANAKA, Hiroshi OHTSU, Kohei NARA, Keisuke KAMATA, Rie KATSUKI, Kazuhide SAWA
  • Patent number: 10534235
    Abstract: According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: January 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Hitoshi Tanaka, Kazuhide Mochizuki
  • Publication number: 20200000953
    Abstract: A method for producing an aroma composition from an animal or plant material, including: holding an adsorbent in a bag and putting the bag in a bag holder inside an aroma compound adsorbing device, fragmenting an animal or plant material to give crude fragmented pieces of the material containing minor fragments, removing the minor fragments from a gas containing aroma compounds emitted from the material in its fragmentation and minor fragments, introducing the gas from which the minor fragments have been removed into the adsorbent to adsorb the aroma compounds, taking out the bag from the bag holder, and collecting the aroma compounds from the adsorbent to prepare an aroma composition containing the aroma compounds, and the bag holder has a mesh lid at its both ends, and the bag has pores not passable by the adsorbent; the method is excellent in handleability of the adsorbent.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Kazuhide ASHIKAGA, Koutarou TANAKA
  • Publication number: 20190358683
    Abstract: In the method for cleaning optical components by UV ashing according to the present embodiment, while supplying humidity-controlled humidified gas, ultraviolet rays are radiated to the surface of the protective glass to remove organic matters on the surface of the protective glass. Further, in the cleaning method of the present embodiment, the humidified gas is supplied so that the humidity in the laser head during cleaning becomes 30% to 90%.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 28, 2019
    Inventors: Toshiyuki Tanaka, Satoshi Oyama, Kazuhide Matsuo, Shinichi Miyasaka
  • Publication number: 20190212620
    Abstract: According to one embodiment, a display device including an insulating substrate, a first gate driver, a first gate line and a conductive material layer is provided. The first gate line has a first end connected to the first gate driver and a second end opposite to the first end, and extends in a first direction. The conductive material layer is located between the insulating substrate and the first gate line, overlaps the first gate line, and extends in the first direction. In the display device, the second end of the first gate line is electrically connected to the conductive material layer.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: Japan Display Inc.
    Inventors: Kazuhide MOCHIZUKI, Hitoshi Tanaka
  • Patent number: 10134508
    Abstract: An MgB2 superconducting wire includes a core containing MgB2 and a metal sheath which surrounds the core. The core includes at least a first MgB2 core positioned on the center side, and a second MgB2 core positioned outside the first MgB2 core, and the density of the second MgB2 core is lower than the density of the first MgB2 core.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: November 20, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Youta Ichiki, Kazuhide Tanaka, Motomune Kodama
  • Patent number: 9887029
    Abstract: A technical problem is to turn a persistent current switch on and off at high speed with less heat input. The invention relates to a conductive cooling-type persistent current switch, including: a superconductive wire 1 through which a current is passed; a cooling stage 9 which cools the superconductive wire; and a heater 8 which heats the superconductive wire, wherein the superconductive wire is placed between faces which are each formed by the cooling stage and the heater, a core of the superconductive wire is magnesium diboride 6, and a base material 5 placed around an outer periphery of the core is a material having a resistivity of 10 ??cm or more at 40 K.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 6, 2018
    Assignee: HITACHI, LTD.
    Inventors: Motomune Kodama, Kazuhide Tanaka, Yota Ichiki
  • Publication number: 20160293296
    Abstract: An MgB2 superconducting wire includes a core containing MgB2 and a metal sheath which surrounds the core. The core includes at least a first MgB2 core positioned on the center side, and a second MgB2 core positioned outside the first MgB2 core, and the density of the second MgB2 core is lower than the density of the first MgB2 core.
    Type: Application
    Filed: December 10, 2013
    Publication date: October 6, 2016
    Applicant: Hitachi, Ltd.
    Inventors: Youta ICHIKI, Kazuhide TANAKA, Motomune KODAMA
  • Patent number: 9224937
    Abstract: An MgB2 superconducting wire excellent in critical current density property is supplied by using a crystalline boron powder which is low in costs and easy to obtain. For the wire, a precursor of the MgB2 superconducting wire is used, the precursor having a linear structure including a core region containing a magnesium powder and a boron powder, and a sheath region formed of a metal covering an outer circumferential portion of the core region. The boron powder is crystalline, and has a volume-mean particle size of 2 ?m or less.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: December 29, 2015
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Motomune Kodama, Kazuhide Tanaka, Junichi Shimoyama, Akiyasu Yamamoto
  • Publication number: 20150228391
    Abstract: A technical problem is to turn a persistent current switch on and off at high speed with less heat input. The invention relates to a conductive cooling-type persistent current switch, including: a superconductive wire 1 through which a current is passed; a cooling stage 9 which cools the superconductive wire; and a heater 8 which heats the superconductive wire, wherein the superconductive wire is placed between faces which are each formed by the cooling stage and the heater, a core of the superconductive wire is magnesium diboride 6, and a base material 5 placed around an outer periphery of the core is a material having a resistivity of 10 ??cm or more at 40 K.
    Type: Application
    Filed: July 12, 2013
    Publication date: August 13, 2015
    Applicant: Hitachi, Ltd.,
    Inventors: Motomune Kodama, Kazuhide Tanaka, Yota Ichiki
  • Publication number: 20150111755
    Abstract: A superconducting wire has a length that is sufficiently longer than a conventional one, and a critical current density that is uniformly high over the entire length thereof. Density of the magnesium diboride core is 1.5 g/cm3 or higher. A void is present in an arbitrary longitudinal cross-section in the longitudinal direction of the superconducting wire, when a length of a line segment which connects the most distant two points in a closed curve forming the void is assumed to be L, among the voids with length L of 20 ?m or greater, the number of voids with an angle formed by the line segment and the axis in the longitudinal direction of the superconducting wire of 45° or greater is less than the number of voids with the angle formed by the line segment and the axis in the longitudinal direction of the superconducting wire of smaller than 45°.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 23, 2015
    Inventors: Motomune Kodama, Kazuhide Tanaka, Junichi Shimoyama, Akiyasu Yamamoto
  • Patent number: 8644897
    Abstract: Provided is a superconducting apparatus, including a joint of superconducting wires having high electric conduction characteristics and a superconducting magnet or the like. The superconducting joint comprises a plurality of superconducting wires and a sinter which integrates the plurality of superconducting wires. Herein, at least any one of the superconducting wires is a MgB2 superconducting wire, the sinter contains MgB2, and the sinter is compressed form the direction different from the direction toward which the superconducting wires protrude. Further, in order to form such a joint, a compression vessel provided with an opening used for introducing raw material powders to construct the sinter and another opening used for inserting the superconducting wires is utilized, and the openings are directed to different directions each other. Accordingly, MgB2 is filled in the sinter at high density, allowing the joint structure to have a good bonding property among particles.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 4, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yota Ichiki, Tsuyoshi Wakuda, Kazuhide Tanaka
  • Patent number: 8571616
    Abstract: An MgB2 compound sheath superconducting wire includes a high stable metal having a specific electric resistance 7 ??cm or below at a room temperature and a high strength metal having a Vickers hardness 50 or above at a room temperature, both of which are assembled therewith to realize a high strength and a lengthy superconductor.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: October 29, 2013
    Assignees: Hitachi, Ltd., Central Japan Railway Company
    Inventors: Kazuhide Tanaka, Michiya Okada, Masazumi Hirakawa, Hideyuki Yamada
  • Publication number: 20130012395
    Abstract: A superconducting wire which is obtained by a heat treatment at a lower temperature than related art and has a high critical current density, and the process of manufacture can be provided by causing a compound expressed by the following formula (1) to be contained: Mg(B1-xCx)y??(1) where x is a number satisfying 0<x<1, and y is a number satisfying 2.1?y.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: HITACHI, LTD.
    Inventors: Kazuhide Tanaka, Motomune Kodama, Yasuo Kondo
  • Patent number: 8266958
    Abstract: An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: September 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhide Tanaka, Masaya Takahashi, Michiya Okada, Hideki Abe, Motoharu Imai
  • Publication number: 20120220465
    Abstract: The invention provides a MgB2 superconductive wire which is long and has a high critical current density. The invention provides a manufacturing method of a superconductive wire in which a magnesium or a magnesium alloy is reacted with a magnesium boride expressed by MgBx (x=4, 7, 12) by carrying out a heat treatment. A superconductive wire is characterized by the magnesium boride expressed by the MgBx (x=4, 7, 12) is included in a part.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 30, 2012
    Inventors: Kazuhide TANAKA, Yasuo Kondo, Tsuyoshi Wakuda