Patents by Inventor Hideto Yamada

Hideto Yamada 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: 20220314899
    Abstract: A garnish includes a heating element, a base member, and a circuit board. The heating element is configured by stacking first and second sheet materials and interposing a heater wire in between. The circuit board includes a power source line and is fixed to a back surface of the base member. The heating element includes a main body portion and an extending portion. The extending portion includes a power source connection portion for connecting the heater wire to the power source line and extends to the back surface of the base member. The main body portion of the heating element is fixed to a laying surface of the base member by fixing the second sheet material to the base member. The heater wire is exposed in the power source connection portion without stacking the second sheet material on the first sheet material.
    Type: Application
    Filed: June 13, 2022
    Publication date: October 6, 2022
    Inventors: Kozo HIROTANI, Hiroyuki YAMADA, Tohoru MATSUNAMI, Hiroaki ANDO, Kimihiro IIMURA, Hideto MAEDA, Tetsuo YASUDA, Akihiro MISAWA, Chiharu TOTANI
  • Patent number: 11370366
    Abstract: A garnish includes a heating element, a base member, and a circuit board. The heating element is configured by stacking first and second sheet materials and interposing a heater wire in between. The circuit board includes a power source line and is fixed to a back surface of the base member. The heating element includes a main body portion and an extending portion. The extending portion includes a power source connection portion for connecting the heater wire to the power source line and extends to the back surface of the base member. The main body portion of the heating element is fixed to a laying surface of the base member by fixing the second sheet material to the base member. The heater wire is exposed in the power source connection portion without stacking the second sheet material on the first sheet material.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 28, 2022
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Kozo Hirotani, Hiroyuki Yamada, Tohoru Matsunami, Hiroaki Ando, Kimihiro Iimura, Hideto Maeda, Tetsuo Yasuda, Akihiro Misawa, Chiharu Totani
  • Publication number: 20210339303
    Abstract: A tool for a press brake includes a tool main body, an attachment portion formed on a base end side of the tool main body and configured to be detachably attached to a tool installation portion of the press brake by using a tool changer, and a bending portion formed on a distal end side of the tool main body and used to bend a plate-shaped workpiece. An engagement hole having a circular cross-sectional shape to be engaged with a bar-shaped finger of the tool changer extends through the tool main body in a thickness direction. An anti-rotation bottomed depressed portion configured to receive a distal end of an anti-rotation member of the tool changer is formed in a vicinity of the engagement hole.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 4, 2021
    Inventors: Masaaki SATO, Shiro HAYASHI, Shingo KAMADA, Hideto YAMADA, Yohei YAMAGUCHI
  • Publication number: 20210323046
    Abstract: A tool changer includes a slider provided behind (or in front of) a table of a press brake, and configured to slide in a right-left direction along a tool installation part of the table, a finger provided in the slider, and configured to be inserted into an engagement hole extending through a tool and to move in a front-rear direction, and an engagement member configured to be protruded and retracted relative to an outer peripheral surface of the finger on a tip side, and to be engaged with a peripheral edge portion of the engagement hole of the tool (or an inner stepped portion formed at an intermediate position of the engagement hole).
    Type: Application
    Filed: July 17, 2019
    Publication date: October 21, 2021
    Inventors: Masaaki SATO, Shiro HAYASHI, Shingo KAMADA, Hideto YAMADA, Yohei YAMAGUCHI
  • Publication number: 20210324266
    Abstract: In one aspect of the present disclosure, there is provided an optical wavelength conversion member including a polycrystalline ceramic sintered body containing, as main components, Al2O3 crystal grains and crystal grains represented by formula X3Al5O12:Ce. In the optical wavelength conversion member 9, atoms of element X are present also in an Al2O3 crystal grain adjacent to the interface between the Al2O3 crystal grain and an X3Al5O12:Ce crystal grain.
    Type: Application
    Filed: July 17, 2019
    Publication date: October 21, 2021
    Inventors: Shohei TAKAKU, Yusuke KATSU, Tsuneyuki ITO, Toshiaki KURAHASHI, Hideto YAMADA
  • Publication number: 20210291252
    Abstract: A tool for a press brake includes a tool main body, an attachment portion formed on a base end side (one end side) of the tool main body and configured to be detachably attached to a tool installation portion of the press brake by using a tool changer, and a bending portion formed on a tip side (the other end side) of the tool main body and used to bend a plate-shaped workpiece. At a correspondent position, in a lateral direction, in the tool main body to a gravity-center position (the gravity-center position of the tool), an engagement hole having a circular cross-sectional shape to be engaged with a bar-shaped finger of the tool changer extends in a thickness direction (a direction of a thickness of the tool).
    Type: Application
    Filed: July 17, 2019
    Publication date: September 23, 2021
    Inventors: Masaaki SATO, Shiro HAYASHI, Shingo KAMADA, Hideto YAMADA, Yohei YAMAGUCHI
  • Publication number: 20210252582
    Abstract: An upper tool stocker for detachably supporting a plurality of divided upper tools in a press brake includes a stocker main body extending in a left-right direction, and provided with a left-right directional installing groove, attachment portions provided in upper portions of the divided upper tools being detachably installed in the installing groove, wherein the stocker main body includes a front-back directional cutout communicated with the installing groove to remove the divided upper tools downward or in the front-back direction from the installing groove.
    Type: Application
    Filed: July 17, 2019
    Publication date: August 19, 2021
    Inventors: Masaaki SATO, Shiro HAYASHI, Shingo KAMADA, Hideto YAMADA, Yohei YAMAGUCHI
  • Publication number: 20210252578
    Abstract: In an installing method for installing divided upper tools to upper tool holders disposed to be spaced at an appropriate interval in a left-right direction in a lower portion of an upper table of a press brake, by using a tool changer, a round bar-shaped finger provided in the tool changer is engaged in a circular engagement hole provided at a central portion in the lateral direction of each divided upper tool. The divided upper tool is temporarily positioned in a gap between an upper tool holder to which the divided upper tool is to be installed, and an adjacent upper tool holder. The temporarily positioned divided upper tool is moved in the left-right direction to be installed to the upper tool holder to which the divided upper tool is to be installed.
    Type: Application
    Filed: July 17, 2019
    Publication date: August 19, 2021
    Inventors: Masaaki SATO, Shiro HAYASHI, Shingo KAMADA, Hideto YAMADA, Yohei YAMAGUCHI
  • Publication number: 20210246367
    Abstract: One aspect of the disclosure provides an optical wavelength conversion member including a polycrystalline ceramic sintered body containing, as main components, Al2O3 crystal grains and crystal grains represented by formula (Y,A)3B5O12:Ce. In the optical wavelength conversion member, a (Y,A)3B5O12:Ce crystal grain has a region wherein the A concentration of a peripheral portion of the (Y,A)3B5O12:Ce crystal grain is higher than that of an interior portion of the (Y,A)3B5O12:Ce crystal grain. Thus, the optical wavelength conversion member exhibits high fluorescence intensity (i.e., high emission intensity) and high heat resistance (i.e., low likelihood of temperature quenching). The optical wavelength conversion member has a structure wherein the element A concentration of a peripheral portion of a (Y,A)3B5O12:Ce crystal grain differs from that in an interior portion of the crystal grain.
    Type: Application
    Filed: July 1, 2019
    Publication date: August 12, 2021
    Inventors: Shohei TAKAKU, Yusuke KATSU, Tsuneyuki ITO, Toshiaki KURAHASHI, Hideto YAMADA
  • Publication number: 20190241475
    Abstract: An object of the present disclosure is to improve the properties of a ceramic composition. A ceramic composition contains alumina (Al2O3) and tungsten carbide (WC) and is characterized in that an atomic layer formed of at least one element selected from among transition metals belonging to Groups 4 to 6 of the periodic table, yttrium (Y), scandium (Sc), and lanthanoids is present at a crystal grain boundary between an alumina (Al2O3) crystal grain and a tungsten carbide (WC) crystal grain.
    Type: Application
    Filed: September 20, 2017
    Publication date: August 8, 2019
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yusuke KATSU, Toshiaki KURAHASHI, Hideto YAMADA, Takeshi MITSUOKA
  • Patent number: 10348061
    Abstract: The spark plug includes an insulator formed of an alumina-based sintered body, and the insulator contains Si, Ba, and a rare earth element. In an analysis of the insulator by using a scanning transmission electron microscope having an electron-probe diameter of 1 nm, Si and a rare earth element are detected at a crystal grain boundary having a thickness of 15 nm or less, a content of an alkaline earth metal is less than a detection limit at the crystal grain boundary, and a diffraction spot is present in an electron diffraction pattern of a portion where Ba is detected.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: July 9, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hideto Yamada, Haruki Yoshida, Kuniharu Tanaka, Michitaka Yamada, Yusuke Nomura
  • Patent number: 10347817
    Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase is 0.40<(Na/K)<3.0. The main phase has a crystal structure in which (i) first spots corresponding to a primitive lattice period and (ii) second spots corresponding to the lattice period two times the primitive lattice period and being weaker than the first spots appear in an electron beam diffraction image entering from the <100> direction with the main phase represented as a pseudo-cubic crystal system. Also, the area ratio of a crystal phase reflecting the second spots in the main phase is 33% or less, and the maximum grain size of crystals reflecting the second spots in the main phase is 25 nm or less.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 9, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi Kozuka, Hideto Yamada, Takayuki Matsuoka, Kazuaki Kitamura, Masato Yamazaki, Toshiaki Kurahashi, Takashi Kasashima, Yasuyuki Okimura, Kazushige Ohbayashi
  • Patent number: 10340441
    Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide subphase. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase assumes a value in a range represented by 0.40<(Na/K)<3.0. The main phase has a crystal structure in which (i) first spots corresponding to a primitive lattice period and (ii) second spots corresponding to the lattice period two times the primitive lattice period and being weaker than the first spots appear in an electron beam diffraction image entering from the <100> direction with the main phase represented as a pseudo-cubic crystal system.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 2, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi Kozuka, Hideto Yamada, Takayuki Matsuoka, Kazuaki Kitamura, Masato Yamazaki, Toshiaki Kurahashi, Takashi Kasashima, Yasuyuki Okimura, Kazushige Ohbayashi
  • Publication number: 20180375299
    Abstract: The spark plug includes an insulator formed of an alumina-based sintered body, and the insulator contains Si, B a, and a rare earth element. In an analysis of the insulator by using a scanning transmission electron microscope having an electron-probe diameter of 1 nm, Si and a rare earth element are detected at a crystal grain boundary having a thickness of 15 nm or less, a content of an alkaline earth metal is less than a detection limit at the crystal grain boundary, and a diffraction spot is present in an electron diffraction pattern of a portion where Ba is detected.
    Type: Application
    Filed: June 26, 2018
    Publication date: December 27, 2018
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hideto YAMADA, Haruki YOSHIDA, Kuniharu TANAKA, Michitaka YAMADA, Yusuke NOMURA
  • Patent number: 9938197
    Abstract: A lead-free piezoelectric ceramic composition includes a first crystal phase made of an alkali niobate/tantalate type perovskite oxide having piezoelectric properties, and a second crystal phase made of an M-Ti—O spinel compound (where the element M is a monovalent to quadrivalent element).
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 10, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masato Yamazaki, Takayuki Matsuoka, Kazuaki Kitamura, Hisashi Kozuka, Hideto Yamada, Toshiaki Kurahashi, Yasuyuki Okimura, Kazushige Ohbayashi, Takashi Kasashima
  • Patent number: 9871187
    Abstract: A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound (where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements). The sub-phase fills voids present in the main phase.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: January 16, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masato Yamazaki, Takayuki Matsuoka, Yoshiteru Honda, Kazuaki Kitamura, Hisashi Kozuka, Toshiaki Kurahashi, Yasuyuki Okimura, Hideto Yamada, Kazushige Ohbayashi
  • Patent number: 9828296
    Abstract: A lead-free piezoelectric ceramic composition mainly includes a first crystal phase (KNN phase) and a second crystal phase (NTK phase). In the first crystal phase (KNN phase), a plurality of crystal grains formed of an alkali niobate/tantalate perovskite oxide having piezoelectric characteristics is bound to each other in a deposited state. The second crystal phase (NTK phase) is formed of a compound containing titanium (Ti) and fills spaces between the crystal grains in the first crystal phase.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: November 28, 2017
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masato Yamazaki, Takayuki Matsuoka, Kazuaki Kitamura, Hideto Yamada, Toshiaki Kurahashi, Katsuya Yamagiwa, Kazushige Ohbayashi
  • Publication number: 20170141293
    Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase is 0.40<(Na/K)<3.0. The main phase has a crystal structure in which (i) first spots corresponding to a primitive lattice period and (ii) second spots corresponding to the lattice period two times the primitive lattice period and being weaker than the first spots appear in an electron beam diffraction image entering from the <100> direction with the main phase represented as a pseudo-cubic crystal system. Also, the area ratio of a crystal phase reflecting the second spots in the main phase is 33% or less, and the maximum grain size of crystals reflecting the second spots in the main phase is 25 nm or less.
    Type: Application
    Filed: March 5, 2015
    Publication date: May 18, 2017
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi KOZUKA, Hideto YAMADA, Takayuki MATSUOKA, Kazuaki KITAMURA, Masato YAMAZAKI, Toshiaki KURAHASHI, Takashi KASASHIMA, Yasuyuki OKIMURA, Kazushige OHBAYASHI
  • Publication number: 20170141292
    Abstract: A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide subphase. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase assumes a value in a range represented by 0.40<(Na/K)<3.0. The main phase has a crystal structure in which (i) first spots corresponding to a primitive lattice period and (ii) second spots corresponding to the lattice period two times the primitive lattice period and being weaker than the first spots appear in an electron beam diffraction image entering from the <100> direction with the main phase represented as a pseudo-cubic crystal system.
    Type: Application
    Filed: March 5, 2015
    Publication date: May 18, 2017
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi KOZUKA, Hideto YAMADA, Takayuki MATSUOKA, Kazuaki KITAMURA, Masato YAMAZAKI, Toshiaki KURAHASHI, Takashi KASASHIMA, Yasuyuki OKIMURA, Kazushige OHBAYASHI
  • Patent number: 9356279
    Abstract: In a (001) pole figure of the active material particles, where a plane parallel to the substrate is defined as the equatorial plane, a Lotgering factor fa(001) of an A plane and a Lotgering factor fh(001) of a B plane satisfy both Expressions (1) and (2) below, the A plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a first point of maximum XRD intensity of peaks attributed to (001) planes at the outer periphery of the equatorial plane, the B plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a second point of minimum XRD intensity of peaks attributed to the (001) planes at the outer periphery of the equatorial plane: fa(001)>0.3 ??Expression (1) fa(001)?fb(001)<1.0 ??Expression (2).
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 31, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Masato Hozumi, Toshiya Saito, Hideto Yamada, Tohru Suzuki, Tetsuo Uchikoshi, Yoshio Sakka