Patents Assigned to Noritake Co., Limited
  • Publication number: 20220048161
    Abstract: A metal bond grindstone grinds a hard and brittle material. The metal bond grindstone includes: a metal bond; abrasive grains bound by the metal bond; and pores having a pore size of 50-200 ?m, such that a porosity in an entirety of the metal bond grindstone is 50-65 vol %. A number of the abrasive grains on a grinding surface excluding the pores may be 700-6500 grains/cm2. The abrasive grains may be diamond abrasive grains, and a grain size of the abrasive grains may be 4-20 ?m in median size. The metal bond grindstone may have a grindstone strength of 40-95 MPa.
    Type: Application
    Filed: January 24, 2020
    Publication date: February 17, 2022
    Applicant: NORITAKE CO., LIMITED
    Inventors: Daiki FURUNO, Ibuki SHINKAI, Masaru YAMAGUCHI
  • Publication number: 20210364176
    Abstract: A liquid atomizing apparatus includes: an atomizing body member made of a porous body having micropores connected in a three-dimensional network, the atomizing body member having a surface including a part serving as a gas pressurized-inflow surface and another part serving as a gas release surface; a liquid supply unit for supplying a liquid to the atomizing body member, the liquid being to be impregnated into the micropores of the atomizing body member; and a gas supply unit for setting gas pressure on the gas pressurized-inflow surface of the atomizing body member to be higher than on the gas release surface of the atomizing body member and injecting the gas into the micropores of the atomizing body member through the gas pressurized-inflow surface, and releasing a mist of the liquid having been impregnated in the micropores together with the gas from the gas release surface.
    Type: Application
    Filed: January 18, 2019
    Publication date: November 25, 2021
    Applicant: NORITAKE CO., LIMITED
    Inventors: Tomokazu EDA, Teruhisa FUJII, Hitoshi KATO, Yusuke SHIMIZU
  • Publication number: 20210362298
    Abstract: A vitrified grinding stone having an open and homogeneous structure in which an abrasive grain and an inorganic hollow filler are bonded by an inorganic bonding agent, the abrasive grain is filled at a proportion by volume fraction of 23 to 35 vol %, and has homogeneity with a standard deviation of 10 or less in a frequency distribution chart of an area ratio of an abrasive grain, which is a distribution chart of proportions of a solid matter including the abrasive grain per unit area at a plurality of locations in a cross section of the vitrified grinding stone.
    Type: Application
    Filed: March 1, 2019
    Publication date: November 25, 2021
    Applicant: NORITAKE CO., LIMITED
    Inventors: Kousei OGASAWARA, Tomonori MIZUTANI, Hiroshi OHYAMA
  • Patent number: 11157126
    Abstract: A touch panel is formed by laminating: a glass substrate having a touch surface; an X-axis sensor unit having parallel patterns, each of which having diamond-shaped X-axis lattices 10A and 10B aligned in an X-axis direction; an Y-axis sensor unit having parallel patterns each of which having Y-axis lattices 14A and 14B aligned in a Y-axis direction; and an insulation layer arranged between the X-axis sensor unit and the Y-axis sensor unit. The X-axis lattices and the Y-axis lattices are not overlapped when seen from a side of the touch surface. A gap 17 is formed between a frame line 10a of the X-axis lattice and a frame line 14a of the Y-axis lattice. A protrusion part 12 extended parallel to a lattice side of a fine lattice from the frame line 10a of the X-axis lattices 10A and 10B is arranged in the gap 17.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 26, 2021
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Takehiro Nakao, Kazuya Nasu
  • Patent number: 11130872
    Abstract: The present invention provides a red paint for ceramic decoration, including a glass matrix, and a red colorant and a protective material that are intermingled in the glass matrix. The red colorant contains gold nanoparticles and silver nanoparticles. The protective material contains silica nanoparticles.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 28, 2021
    Assignee: Noritake Co., Limited
    Inventors: Hiromichi Hayashi, Jun Shiota, Tomoshi Kumazawa
  • Patent number: 11062871
    Abstract: An analog amplification vacuum tube of the present invention suppresses influences of filament vibration on amplification characteristics. The analog amplification vacuum tube of the present invention is provided with a filament, an anode, a grid and a vibration-proof part. The filament is tensioned linearly and emits thermal electrons. The anode is disposed parallel to the filament. The grid is disposed between the filament and the anode so as to face the anode. The vibration-proof part includes a thin film usable in a vacuum environment and the thin film comes into contact with part of the filament.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 13, 2021
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Kazunori Tatsuda, Takehiro Nakao, Tomotaka Ezaki
  • Publication number: 20210206021
    Abstract: The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Applicants: Japan Fine Ceramics Center, NORITAKE CO., LIMITED, TOTO LTD., NGK INSULATORS, LTD., NGK SPARK PLUG CO., LTD.
    Inventors: Teiichi KIMURA, Satoshi SUEHIRO
  • Patent number: 11027454
    Abstract: The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: June 8, 2021
    Assignees: Japan Fine Ceramics Center, NORITAKE CO., LIMITED, TOTO LTD., NGK INSULATORS, LTD., NGK SPARK PLUG CO., LTD.
    Inventors: Teiichi Kimura, Satoshi Suehiro
  • Publication number: 20210162564
    Abstract: In a high-porosity CBN vitrified grinding stone having a homogeneous structure, a CBN abrasive grain, a large-diameter inorganic hollow filler having an average particle diameter in a range from a grain size one class coarser to a grain size one class finer with respect to a class indicating a grain size of the CBN abrasive grain, and a small-diameter inorganic hollow filler having an average particle diameter of ? to ½ of that of the CBN abrasive grain are bonded by an inorganic bonding agent.
    Type: Application
    Filed: March 6, 2019
    Publication date: June 3, 2021
    Applicant: NORITAKE CO., LIMITED
    Inventors: Ryoma ITO, Takeshi MISHIMA, Kouichi YOSHIMURA
  • Patent number: 10987826
    Abstract: The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 27, 2021
    Assignees: Japan Fine Ceramics Center, NORITAKE CO., LIMITED, TOTO LTD., NGK INSULATORS, LTD., NGK SPARK PLUG CO., LTD.
    Inventors: Teiichi Kimura, Satoshi Suehiro
  • Publication number: 20210061575
    Abstract: A conveyance roller for a heating furnace includes: a roller body constituted by a metal tube made of a heat-resistant alloy; at least one holding protrusion provided on an outer circumferential surface of the roller body for holding an object to be heated in the heating furnace, and protruding from the outer circumferential surface of the roller body in a plurality of positions at a given interval in a longitudinal direction of the roller body; and at least one shielding member provided to be adjacent to the at least one the holding protrusion in the longitudinal direction, and covering the outer circumferential surface of the roller body. The at least one shielding member has a thickness not larger than a height of the holding protrusion from the outer circumferential surface of the roller body.
    Type: Application
    Filed: March 4, 2019
    Publication date: March 4, 2021
    Applicant: NORITAKE CO., LIMITED
    Inventors: Hirotoshi UEDA, Kiyotaka SUZUKI, Takeyuki KANDA, Shigehito YAMAMOTO
  • Publication number: 20200328057
    Abstract: An analog amplification vacuum tube of the present invention suppresses influences of filament vibration on amplification characteristics. The analog amplification vacuum tube of the present invention is provided with a filament, an anode, a grid and a vibration-proof part. The filament is tensioned linearly and emits thermalelectrons. The anode is disposed parallel to the filament. The grid is disposed between the filament and the anode so as to face the anode. The vibration-proof part includes a thin film usable in a vacuum environment and the thin film comes into contact with part of the filament.
    Type: Application
    Filed: January 10, 2019
    Publication date: October 15, 2020
    Applicants: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Kazunori TATSUDA, Takehiro NAKAO, Tomotaka EZAKI
  • Patent number: 10778224
    Abstract: To provide a method for lighting a backlight of a capacitive touch switch module in which driving of the backlight hardly affects sensitivity of a touch switch. An electrical noise generated when a LED backlight 6 is driven is suppressed by at least one of (1) setting timings of turning on and/or turning off of pulse waveforms for light emitting diode backlights in a pulse modulation system not to be the same but to be different from each other, and (2) lengthening a time necessary for at least one of rising and falling of the pulse waveform in the pulse modulation system.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: September 15, 2020
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Yukari Takeda, Toru Kohama, Kazuhisa Shibata
  • Patent number: 10669393
    Abstract: An object of the present invention is to provide a powder for three-dimensional shaping that allows shaping a three-dimensional shaped object having excellent mechanical strength. The powder for three-dimensional shaping provided by the invention includes non-hydration reactive base particles and water-soluble bonding particles. Upon preparation of a slurry through addition of 50 parts by mass of water to 100 parts by mass of the powder, the viscosity of the slurry after 1 minute from addition of the water ranges from 30 mPa·s to 8000 mPa·s.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 2, 2020
    Assignee: NORITAKE CO., LIMITED
    Inventors: Akihiro Okashimo, Daishi Yoshikawa
  • Patent number: 10655209
    Abstract: There is provided an inexpensive electromagnetic shield that can achieve exceptional shielding and display visibility characteristics, and provide high environmental resistance as necessary. In an electromagnetic shield (1), an intermediate layer (3) is formed on a glass substrate (2) comprising soda lime glass, an electroconductive layer (4) of Al is formed thereon, and openings (5) are formed by wet etching on the intermediate layer (3) and the electroconductive layer (4) after these layers have been formed by sputtering or vacuum deposition. Furthermore, an ITO layer (6) is formed on the entire glass surface including the intermediate layer (3) and the electroconductive layer (4) after the openings (5) are formed. In this configuration, the intermediate layer (3) comprises a mixture of at least one metal selected from chromium, molybdenum, and tungsten, and at least one oxide selected from oxides of silicon, oxides of aluminum, and oxides of titanium.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 19, 2020
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Hitoshi Tsuji, Tadami Maeda, Isamu Kanda
  • Publication number: 20200130074
    Abstract: A twin-head bar cutting device includes a first cutting head and a first bar holding device as well as a second cutting head and a second bar holding device placed on a common base. The base includes a first placement surface on which the first cutting head is placed, a second placement surface on which the second cutting head is placed, and a holding device placement surface formed higher than the first placement surface and the second placement surface between the first placement surface and the second placement surface and on which the first bar holding device and the second bar holding device are placed, and the first cutting head and the second cutting head are arranged symmetrically about a vertical plane passing through a center in a width direction of the base.
    Type: Application
    Filed: October 31, 2019
    Publication date: April 30, 2020
    Applicant: NORITAKE CO., LIMITED
    Inventors: Katsuyuki MASUYA, Takaaki SHIROZU
  • Patent number: 10632671
    Abstract: The present invention provides a powder for layer manufacturing including non-hydratable matrix particles, and water-soluble adhesive particles. The powder for layer manufacturing includes, as the water-soluble adhesive particles, polyvinyl alcohol resin particles with a saponification degree of 86.5 mol % to 89.0 mol %, an average degree of polymerization of 400 to 600, a viscosity of a 4 mass % aqueous solution at 20° C. of 4.6 mPa to 5.4 mPa, and an average particle diameter of 20 ?m to 60 ?m.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 28, 2020
    Assignees: Noritake Co., Limited, Roland DG Corporation
    Inventors: Daishi Yoshikawa, Fumiyoshi Iwase
  • Patent number: 10509522
    Abstract: To provide a capacitive touch switch capable of improving ununiformity of design and improving appearance relating to design or decorativeness. A capacitive touch switch 1 includes a glass substrate 2, a sensor portion formed at a side of an opposite surface opposite to a touch surface of the glass substrate. The sensor portion includes a center portion A of a wire attached portion 4 to a flexible printed circuit, and a connection portion C connected to the wire network B. In the connection portion C, an opening rate in a capacitive touch switch panel is increased by setting an electrode pattern width to be thinner from the wire attached portion A toward the wire network B.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 17, 2019
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Hitoshi Tsuji, Isamu Kanda, Tadami Maeda, Kouichi Okuyama, Misa Yamanaka
  • Publication number: 20190330115
    Abstract: An alumina porous body made up by binding aggregate alumina particles to each other, the aggregate alumina particles being bound to each other by a compound comprising yttrium silicate synthesized from mullite and Y2O3; and a two-layer structure ceramic porous body with an inorganic porous film formed on the alumina porous body.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Applicant: NORITAKE CO., LIMITED
    Inventors: Hirokazu WATANABE, N. Nair BALAGOPAL
  • Patent number: 10449656
    Abstract: A continuous-generation gear grinding method of conducting a gear grinding process such that while a thread-shaped grinding wheel is rotated around an axial center thereof and fed in an axial center direction, a position coming into contact with abrasive grains is constantly changed in the presence of a water-soluble grinding fluid by performing a grinding feed in a direction parallel to an axial center of a gear blank and by serially rotating the gear blank around the axial center, the grinding wheel being a vitrified grinding wheel having abrasive grains bonded by a vitrified bond with pores formed among the abrasive grains, and the abrasive grains having a grain size of F120 to F180.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 22, 2019
    Assignees: TOYOTA MOTOR HOKKAIDO INC., NORITAKE CO., LIMITED, YUSHIRO CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masatoshi Ozaki, Toru Yamazaki, Kazuhiro Horimi, Tatsuyoshi Yasuda, Yoshihisa Hayakawa, Sho Nakajima