Patents by Inventor Kiyoshi Sato

Kiyoshi Sato 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: 10336625
    Abstract: An alumina sintered body according to the present invention includes a surface having a degree of c-plane orientation of 5% or more, the degree of c-plane orientation being determined by a Lotgering method using an X-ray diffraction profile obtained through X-ray irradiation at 2?=20° to 70°. The alumina sintered body contains Mg and F, a Mg/F mass ratio is 0.05 to 3500, and a Mg content is 30 to 3500 ppm by mass. The alumina sintered body has a crystal grain size of 15 to 200 ?m. When a field of view of 370.0 ?m long×372.0 ?m wide is photographed with a 1000-fold magnification and the photograph is visually observed, a number of pores having a diameter of 0.2 to 0.6 ?m is 250 or less.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 2, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Kiyoshi Matsushima, Morimichi Watanabe, Kei Sato, Tsutomu Nanataki
  • Publication number: 20190182602
    Abstract: A sound-producing device includes, in a case, a yoke formed of a magnetic material, a magnet supported by the yoke, a coil, an armature extending through the coil and facing the magnet, and a vibrator configured to vibrate in response to operation of the armature. The yoke is formed of an Fe—Ni alloy containing 32% by mass to 40% by mass of Ni.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Taishi NUMATA, Daigo AOKI, Kiyoshi SATO, Yutaka SATO
  • Patent number: 10315957
    Abstract: A method for producing a transparent alumina sintered body includes (a) the step of preparing an alumina raw material powder containing a plate-like alumina powder having an aspect ratio of 3 or more so that the mass ratio R1 of F to Al in the alumina raw material powder is 5 ppm or more, and forming a compaction raw material containing the alumina raw material powder into a compact, and (b) the step of pressure-sintering the compact at a temperature at which F evaporate to yield a transparent alumina sintered body.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: June 11, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Kiyoshi Matsushima, Morimichi Watanabe, Kei Sato, Tsutomu Nanataki
  • Patent number: 10287933
    Abstract: In an assembly of a hollow poppet valve and a valve seat insert, the hollow poppet valve's head is integrally formed with a stem end, a hollow part is formed from the head to a stem, and coolant is filled into the hollow part along with an inert gas. The valve seat insert is formed of iron base sintered alloy and obtained by integrating two layers of a supporting material side layer and a valve contact face side layer. The hollow poppet valve is formed of a material having thermal conductivity of 5-45 (W/m·K) at 20-1000° C. The valve seat insert includes the supporting material side layer having thermal conductivity of 23-50 (W/m·K) at 20-300° C. and a valve contact face side layer having thermal conductivity of 10-22 (W/m·K) at 20-300° C. This enables a valve temperature decrease throughout an engine's entire RPM range compared with the prior art.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 14, 2019
    Assignees: NIPPON PISTON RING CO., LTD., NITTAN VALVE CO., LTD.
    Inventors: Satoshi Ikemi, Hiroshi Oshige, Kiyoshi Suwa, Kenichi Sato, Kouji Kunitake, Ryouichi Yoshino
  • Patent number: 10222915
    Abstract: First electrode layers are formed from an ITO layer on one surface of a substrate formed from a PET film. The surfaces of the first electrode layers are covered with an insulating layer formed from a dry film resist or the like. Second electrode layers are formed on the surface of the insulating layer in a printing process. The second electrode layer is formed from conductive nanowires or conductive nanotubes. After that, first wiring layers brought into conduction with the first wiring layers and second wiring layers brought into conduction with the second electrode layers are formed.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 5, 2019
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventors: Kiyoshi Sato, Masayoshi Takeuchi
  • Publication number: 20190068038
    Abstract: An armature is vibrated by a magnetic field generating unit and a coil. A diaphragm is driven by the armature. In the magnetic field generating unit, a first protective layer is provided on the magnetized surface of a first magnet, and a second protective layer is provided on the magnetized surface of a second magnet. Since protective layers with a certain thickness are present, it is possible to prevent the armature from being left attracted to the first magnet or second magnet.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 28, 2019
    Inventor: Kiyoshi SATO
  • Patent number: 10138775
    Abstract: A holding material includes a stack of a first mat and a second mat, the first mat including alumina fibers that include 60 wt % or more of alumina and 40 wt % or less of silica, and the second mat including silica fibers that include 60 wt % or more of silica and 40 wt % or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm3.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 27, 2018
    Assignee: NICHIAS CORPORATION
    Inventors: Kazutoshi Isomura, Hiroki Nakamura, Kiyoshi Sato, Isami Abe
  • Publication number: 20180317016
    Abstract: A magnetic-field-generating unit and a coil vibrates an armature. The armature drives a diaphragm. The armature is formed of a rolled metal plate made of Permalloy. A workpiece is cut out of an unannealed metal plate with a wire saw or by etching such that the long-side direction of the workpiece corresponds to a transverse direction that is orthogonal to the direction of rolling performed on the metal plate. The cut-out workpiece is bent and is then annealed. Through this process, the warp of the armature is minimized.
    Type: Application
    Filed: June 21, 2018
    Publication date: November 1, 2018
    Inventors: Daigo Aoki, Taishi Numata, Kiyoshi Sato
  • Publication number: 20180199139
    Abstract: A sound producing device includes a diaphragm, an armature extending parallel to the diaphragm, a coil having a wire wound around the armature in multiple turns, multiple magnets facing the armature, a yoke supporting the multiple magnets, a transmitting body configured to transmit a vibration of the armature to the diaphragm, a driving-side frame on which the armature, the coil, and the yoke supporting the multiple magnets are mounted, and a vibration-side frame including an opening in which the diaphragm is vibratably supported. The driving-side frame and the vibration-side frame are placed one over the other.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Inventors: Taishi NUMATA, Yutaka SATO, Kiyoshi SATO, Hideji SATO
  • Publication number: 20180184210
    Abstract: A magnetic field generation unit, including an upper yoke, a lower yoke, and side yokes, is mounted on a frame. An upper magnet is fixed to the upper yoke, and a lower magnet is fixed to the lower yoke. The magnetic field generation unit is fixed by being butted against a driving end mounting surface of the frame. An armature has a folded part and a base end part, and the base end part is fixed to the driving end mounting surface. By assembling each member on the frame, mutual positional relationships can be determined with a high accuracy.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 28, 2018
    Inventors: Kiyoshi SATO, Hideji SATO, Taishi NUMATA, Yutaka SATO
  • Publication number: 20180016195
    Abstract: A foamed body that is a porous foamed body including inorganic fibers other than asbestos, and having a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 MPa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 18, 2018
    Applicant: NICHIAS CORPORATION
    Inventors: Kazutaka MURAYAMA, Osamu HORIUCHI, Kiyoshi SATO
  • Patent number: 9796634
    Abstract: Provided are a holding material for a gas treatment device, which is inexpensive, has a simple structure, and exhibits high holding force, a gas treatment device, and a method for manufacturing the same. A holding material for a gas treatment device according to the present invention is a holding material, which is a holding material to be arranged, in a gas treatment device including a treatment structure and a casing for housing the treatment structure, between the treatment structure and the casing, the holding material including silica fibers and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts by mass of the silica fibers.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: October 24, 2017
    Assignee: NICHIAS CORPORATION
    Inventors: Junya Satoh, Nobuya Tomosue, Kazutoshi Isomura, Kiyoshi Sato, Tadashi Sakane, Hiroki Nakamura
  • Publication number: 20170138234
    Abstract: A holding material includes a stack of a first mat and a second mat, the first mat including alumina fibers that include 60 wt % or more of alumina and 40 wt % or less of silica, and the second mat including silica fibers that include 60 wt % or more of silica and 40 wt % or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm3.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 18, 2017
    Applicant: NICHIAS CORPORATION
    Inventors: Kazutoshi ISOMURA, Hiroki NAKAMURA, Kiyoshi SATO, Isami ABE
  • Publication number: 20170097705
    Abstract: First electrode layers are formed from an ITO layer on one surface of a substrate formed from a PET film. The surfaces of the first electrode layers are covered with an insulating layer formed from a dry film resist or the like. Second electrode layers are formed on the surface of the insulating layer in a printing process. The second electrode layer is formed from conductive nanowires or conductive nanotubes. After that, first wiring layers brought into conduction with the first wiring layers and second wiring layers brought into conduction with the second electrode layers are formed.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Inventors: Kiyoshi Sato, Masayoshi Takeuchi
  • Patent number: 9364423
    Abstract: The present invention is directed to an extrace of Psilotum spp., as a skin whitening agent. Whitening agents according to the invention exhibit superior effects, for example, by lightening and whitening skin pigmentation, lightening and whitening aging spots, freckles, chloasma, or the like after sunburn. The Psilotum spp. extract of the invention has a superior free radical scavenging ability permitting the extract to control skin aging and skin diseases caused by active oxygen (free radicals), while having a high level of safety.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 14, 2016
    Assignee: Shiseido Company, Ltd.
    Inventors: Rikako Suzuki, Kiyotaka Hasegawa, Kiyoshi Sato, Tokiya Yokoi, Ken Kusakari
  • Patent number: 9302947
    Abstract: Provided is a method for producing inorganic fiber including: preparing a spinning raw material liquid which comprises an aluminum source, a calcium source, a silicon source and a spinning auxiliary, in which the content of the spinning auxiliary is, in terms of solid matter, 3 parts by mass or more relative to 100 parts by mass of the total of the aluminum source, the calcium source and the silicon source; spinning the spinning raw material liquid by a sol-gel method to obtain crude inorganic fiber; and firing the crude inorganic fiber to produce inorganic fiber that comprises 35 mass % to 88 mass % of Al2O3, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO2 in which the total of Al2O3, CaO and SiO2 is 97 mass % or more of the entire fiber.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 5, 2016
    Assignee: NICHIAS CORPORATION
    Inventors: Nobuya Tomosue, Kazutoshi Isomura, Kazutaka Murayama, Kiyoshi Sato
  • Patent number: 9189978
    Abstract: The present invention relates to self-adhesive labels, label sheet assemblies, and related methods. The label sheet assembly includes a release liner assembly having a detachable portion, and a label releasably coupled to the release liner assembly and overlying the detachable portion. Weakened separation lines, a U-shaped cut, and a transverse cut define the detachable portion. The detachable portion is configured to remain coupled to the label as the label is peeled from the release liner assembly in a first direction, and the detachable portion is configured to remain part of the release liner assembly and separate from the label as the label is peeled from the release liner assembly in a second direction.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: November 17, 2015
    Assignee: CCL Label, Inc.
    Inventors: Anahit Tataryan, Joshua David Petrie, Jay Kiyoshi Sato, Thomas Mammen
  • Patent number: 9156730
    Abstract: To provide an inorganic fiber that suppresses adverse effects on a human body and living environments, exhibits high biosolubility, and also exhibits excellent heat resistance as a constituent material for a filter material, a sealing material, or the like. The inorganic fiber comprises 30 mass % or more and less than 81 mass % of Al2O3, more than 19 mass % and 65 mass % or less of MgO and 0 mass % to 40 mass % of SiO2, wherein the total content of Al2O3, MgO and SiO2 relative to the entire fiber is 98 mass % or more.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: October 13, 2015
    Assignee: NICHIAS CORPORATION
    Inventors: Kazutaka Murayama, Jun Oikawa, Kiyoshi Sato
  • Patent number: 9156731
    Abstract: Provided are inorganic fibers which can exhibit high biosolubility and have excellent heat resistance as the constituting material for a filter material, a sealing material or the like, while exerting minimized effects on the human body or the living environment even when the fibers have an average diameter of 1 ?m or less. Inorganic fibers including 35 mass% to 88 mass% of Al2O3, 3 mass% to 45 mass% of CaO and 5 mass% to 40 mass% of SiO2, wherein the total content of Al2O3, CaO and SiO2 is 98 mass% or more of the entire fibers.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: October 13, 2015
    Assignee: NICHIAS CORPORATION
    Inventors: Kazutaka Murayama, Jun Oikawa, Kiyoshi Sato
  • Publication number: 20150210598
    Abstract: Inorganic fibers including 43.2 to 53.0 mol % of Al2O3, 12.8 to 25.2 mol % of SiO2 and 26.0 to 40.0 mol % of CaO, with the total of these components being 98 mol % or more.
    Type: Application
    Filed: August 27, 2013
    Publication date: July 30, 2015
    Applicant: NICHIAS CORPORATION
    Inventors: Nobuya Tomosue, Kazutoshi Isomura, Kazutaka Murayama, Kiyoshi Sato