Patents by Inventor Akira Kikuchi

Akira Kikuchi 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: 10618954
    Abstract: Disclosed is to identify a target molecule that is involved in Dkk1-induced hyperproliferation of tumor cells to provide a novel antitumor agent. Cytoskeleton-associated protein 4 (CKAP4) specifically regulates the hyperproliferation effects that are induced by dickkopf-related protein 1 (Dkk1), and proliferation of tumor cells can be suppressed by inhibiting expression or function of CKAP4 in the tumor cells.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 14, 2020
    Assignee: OSAKA UNIVERSITY
    Inventors: Akira Kikuchi, Katsumi Fumoto, Hirokazu Kimura
  • Patent number: 10622864
    Abstract: An electric motor unit includes an electric motor and a connection module. The electric motor includes motor coils, a stator and a rotor. The electrical connection module includes a power feed bus bar and a neutral bus bar. The power feed bus bar includes power feed collars for each phase, in which terminal portions for each phase are arranged. The neutral bus bar includes a neutral collar in which neutral terminal portions are arranged. When viewed in a direction intersecting with a second cross section, which intersects with a first cross section containing all the neutral terminal portions, the minimum distance between a second cross-section neutral terminal row on the second cross section and a second cross-section power feed terminal row on the second cross section is greater than zero.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: April 14, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Akira Hiramitsu, Ryohei Shigeta, Yoshinao Iwase, Keita Nomura, Masayuki Kikuchi, Yoshiyasu Sakai
  • Patent number: 10612615
    Abstract: A second dynamic vibration absorber is higher in resonance frequency than a first dynamic vibration absorber. At least one of a ratio of a mass of a body of the first dynamic vibration absorber to a reciprocating inertial mass of the reciprocative rotation mechanism or a ratio of a mass of a body of the second dynamic vibration absorber to the reciprocating inertial mass of the reciprocative rotation mechanism is set such that a peak frequency of antiresonance occurring in a higher frequency region of the first dynamic vibration absorber than the resonance frequency of the first dynamic vibration absorber is substantially different from that of antiresonance occurring in a lower frequency region of the second dynamic vibration absorber than the resonance frequency of the second dynamic vibration absorber.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Kiyonori Nagato, Toru Morishima, Takuya Kikuchi, Tsunehiro Mori, Rei Enokizono, Yuichi Shirasuna, Koichi Hirata, Akira Sumitani, Rumiko Yamada
  • Publication number: 20200099315
    Abstract: An apparatus includes: an inverter converting generated power of renewable energy resources to predetermined alternating-current power for output to a power transmission network; a PWM control unit controlling the inverter; a first detecting unit detecting the input voltage and current to the inverter; a second detecting unit detecting the output voltage, current, and frequency of the inverter; a power change deciding unit calculating the input and output powers of the inverter and the difference therebetween from the voltage and current of each of the input and output detected by the detecting units, and calculating a correction output power command with reference to an output power command; and a virtual synchronous inertia control unit calculating a virtual inertia characteristic based on the voltage, current, and frequency of the output detected by the second detecting unit and the correction output power command, and outputting a reference command to a PWM control unit.
    Type: Application
    Filed: March 21, 2018
    Publication date: March 26, 2020
    Inventors: Chia Tse LEE, Akira KIKUCHI
  • Patent number: 10601394
    Abstract: An elastic wave device includes interdigital transducer electrodes on a piezoelectric substrate and wires electrically connected to the interdigital transducer electrodes. The wires include a first wire and a second wire. The device further includes an interlayer insulating film made from an inorganic dielectric material and covering a portion of the first wire. A portion of the second wire bridges a portion of the first wire with the interlayer insulating film provided therebetween. In a region, in a bridged area, where the second wire extends from a region on an outer side portion of the interlayer insulating film to above the interlayer insulating film, first auxiliary wire electrodes are provided on the piezoelectric substrate, such that when viewed in plan view, the first auxiliary wire electrodes at least partially overlap with the second wire and extend to within the interlayer insulating film.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 24, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Taku Kikuchi, Akira Michigami, Daisuke Sekiya, Masashi Tsubokawa
  • Publication number: 20200072461
    Abstract: This solid fuel burner is provided with: a venturi tube in which a channel for mixed fluid in a fuel nozzle narrows toward the center in the channel cross section; a fuel concentrator that imparts, to the mixed fluid, a velocity component away from the center of the fuel nozzle; and a channel separation member that separates the channel of the fuel nozzle into an internal side and an external side; wherein the channel separation member is shaped in such a way that the cross sectional area of an external channel is larger at the downstream end than at the upstream end, and the upstream end of the fuel concentrator is located between the upstream end and the downstream end of an expanded portion of the venturi tube. This solid fuel burner prevents solid fuel particles, which is ground biomass fuel, from adhering and depositing inside the nozzle.
    Type: Application
    Filed: April 16, 2018
    Publication date: March 5, 2020
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kenichi Ochi, Hitoshi Taniguchi, Akira Baba, Koji Kuramashi, Kosuke Kitakaze, Shohei Mito, Hitoshi Kikuchi
  • Patent number: 10566019
    Abstract: The purpose of the present invention is to provide a magnetic recording medium capable of reducing the surface roughness of the magnetic recording layer without adversely affecting the magnetic properties of the magnetic recording layer. The magnetic recording medium of the present invention includes a substrate, a seed layer on the substrate, and a magnetic recording layer on the seed layer, wherein the seed layer has a structure of: (a) a spinel structure consisting of Mg, Cr and O; (b) a spinel structure consisting of Zn, Fe and O; or (c) an inverse spinel structure consisting of Mg, Ti and O.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: February 18, 2020
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hiroyasu Kataoka, Hiroto Kikuchi, Akira Furuta, Hitoshi Nakata, Tomohiro Moriya, Takehito Shimatsu
  • Patent number: 10550364
    Abstract: Provided is a novel method for producing a Wnt protein, which method comprises (1) a step of performing affinity purification targeting afamin to obtain a Wnt protein from a culture product, and/or (2) a step of performing affinity purification to obtain a Wnt protein in the form of a complex with afamin from a culture product. The method enables a Wnt protein having high Wnt activity to be produced in a simple and brief manner without use of special equipment.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: February 4, 2020
    Assignee: OSAKA UNIVERSITY
    Inventors: Junichi Takagi, Emiko Mihara, Akira Kikuchi
  • Publication number: 20190390160
    Abstract: Provided is a novel method for producing a Wnt protein, which method comprises (1) a step of performing affinity purification targeting afamin to obtain a Wnt protein from a culture product, and/or (2) a step of performing affinity purification to obtain a Wnt protein in the form of a complex with afamin from a culture product. The method enables a Wnt protein having high Wnt activity to be produced in a simple and brief manner without use of special equipment.
    Type: Application
    Filed: September 10, 2019
    Publication date: December 26, 2019
    Applicant: OSAKA UNIVERSITY
    Inventors: Junichi TAKAGI, Emiko MIHARA, Akira KIKUCHI
  • Publication number: 20190334246
    Abstract: An antenna includes a dielectric substrate, a ground element, a feed element, a microstrip line, and a feed point. The ground element is disposed on a first surface of the dielectric substrate. The ground element includes a slit. The feed element is disposed on a second surface of the dielectric substrate. The microstrip line extends from the feed element toward the slit. The feed point is disposed on the second surface of the dielectric substrate, and connected to the feed element via the microstrip line. The feed point is positioned between the feed element and the slit, and disposed at an end of the microstrip line.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: MASAYUKI OBATA, YU ONO, HIRONORI KIKUCHI, SHINGO SUMI, HIROAKI OHMORI, AKIRA KANAZAWA, KATSUHIKO MORIOKA
  • Publication number: 20190305590
    Abstract: Providing a power system and a method for stabilizing a system, in which the number of generators to be disconnected is reduced to narrow an area influenced by a grid fault in the case where the reliability of the state estimation calculation is judged to be high.
    Type: Application
    Filed: July 11, 2016
    Publication date: October 3, 2019
    Inventors: Tomomichi ITO, Akira KIKUCHI, Masahiro WATANABE
  • Publication number: 20190287563
    Abstract: In a perpendicular magnetic recording medium and a method of manufacturing the same, a first magnetic recording layer includes first magnetic crystal grains and a first non-magnetic portion containing carbon, a second magnetic recording layer includes second magnetic crystal grains and a second non-magnetic portion containing ZnO, a third magnetic recording layer includes third magnetic crystal grains and a third non-magnetic portion containing carbon, a film thickness t2 of the second magnetic recording layer is 0.1 nm to 7.0 nm, a volume fraction x2 of the second non-magnetic portion in the second magnetic recording layer at completion of formation is 0.20 to 0.90, a film thickness t3 of the third magnetic recording layer is 0.5 nm to 4.0 nm, a volume fraction x3 of the third non-magnetic portion in the third magnetic recording layer is 0.20 to 0.70, and (t2/t3)×(x2/x3) is 0.30 to 1.20.
    Type: Application
    Filed: January 31, 2019
    Publication date: September 19, 2019
    Applicants: FUJI ELECTRIC CO., LTD., TOHOKU UNIVERSITY
    Inventors: Hiroyasu KATAOKA, Hiroto KIKUCHI, Akira FURUTA, Takehito SHIMATSU
  • Publication number: 20190237997
    Abstract: The purpose of the present invention is to provide a power flow monitoring device for a power system, a power system stabilization device, and a power flow monitoring method for a power system, which are highly reliable and accurate.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 1, 2019
    Inventors: Yuki TSUJII, Kenedward KAWAKITA, Masatoshi KUMAGAI, Masahiro WATANABE, Akira KIKUCHI
  • Publication number: 20190181829
    Abstract: An elastic wave device includes first and second IDT electrodes provided over a principal surface of a piezoelectric substrate. The first IDT electrode is provided directly on a principal surface of the piezoelectric substrate and the second IDT electrode is provided over the principal surface with a first dielectric layer interposed therebetween. A second dielectric layer extends to upper portions of the first and second IDT electrodes. A wiring electrode passes over the second dielectric layer and extends to the upper portions of the first and second IDT electrodes. Respective angles between first and second side surfaces of the second dielectric layer and the principal surface of the piezoelectric substrate are smaller than an angle between a side surface of the first dielectric layer and the principal surface of the piezoelectric substrate.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: Taku KIKUCHI, Akira MICHIGAMI
  • Patent number: 10182889
    Abstract: A magnet assembly for a dental magnetic attachment comprising a cup-shaped yoke of substantially Ni-free ferritic stainless steel, a permanent magnet received in a recess of the cup-shaped yoke, a seal member sealing an opening of the cup-shaped yoke, and an abutment-welded portion of the seal member and the cup-shaped yoke; the seal member comprising a center portion of substantially Ni-free ferritic stainless steel; an intermediate portion of substantially Ni-free austenitic stainless steel having a nitrogen content of 0.5-2.0% by mass, and a peripheral portion made of substantially Ni-free ferritic stainless steel having a nitrogen content of 1.3% or less by mass, smaller than in the intermediate portion.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 22, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Yukyo Takada, Masatoshi Takahashi, Akira Kikuchi
  • Patent number: 9991819
    Abstract: A power conversion system is capable of distinguishing easily and clearly between being interconnected to the power system and being in an isolated operation. The power conversion system converts DC power to AC power to interconnect with a power system and injects reactive power into a grid node for determining an isolated operation, including: a voltage detector that detects an output voltage at the grid node; a current detector that detects an output current at the grid node; a frequency measurement unit that measures a frequency of the output voltage at the grid node; a reactive-power measurement unit that measures reactive power at the grid node; and an isolated-operation determination unit that determines whether or not the power conversion system is in an isolated operation as disconnected from the power system. The isolated-operation determination unit includes a reactive-power-fluctuation determination unit that performs a first isolated-operation determination from the reactive power.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 5, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Tomoyuki Hatakeyama, Akira Kikuchi, Fumikazu Takahashi, Kimiaki Taniguchi, Hirofumi Oyamada
  • Publication number: 20180037649
    Abstract: Disclosed is to identify a target molecule that is involved in Dkk1-induced hyperproliferation of tumor cells to provide a novel antitumor agent. Cytoskeleton-associated protein 4 (CKAP4) specifically regulates the hyperproliferation effects that are induced by dickkopf-related protein 1 (Dkk1), and proliferation of tumor cells can be suppressed by inhibiting expression or function of CKAP4 in the tumor cells.
    Type: Application
    Filed: January 28, 2016
    Publication date: February 8, 2018
    Inventors: Akira KIKUCHI, Katsumi FUMOTO, Hirokazu KIMURA
  • Publication number: 20170355953
    Abstract: Provided is a novel method for producing a Wnt protein, which method comprises (1) a step of performing affinity purification targeting afamin to obtain a Wnt protein from a culture product, and/or (2) a step of performing affinity purification to obtain a Wnt protein in the form of a complex with afamin from a culture product. The method enables a Wnt protein having high Wnt activity to be produced in a simple and brief manner without use of special equipment.
    Type: Application
    Filed: December 24, 2015
    Publication date: December 14, 2017
    Applicant: OSAKA UNIVERSITY
    Inventors: Junichi TAKAGI, Emiko MIHARA, Akira KIKUCHI
  • Patent number: 9702580
    Abstract: An air conditioning controlling system, includes: a sensor configured to measure a first air pressure in a cold aisle in a first space cooled by an air conditioner and a second air pressure in a hot aisle in a second space cooled by the air conditioner; and a control apparatus configured to calculate a first prediction value of a power consumption amount of an information processing apparatus and a second prediction value of a power consumption amount of the air conditioner for each of a plurality of first temperatures at an air capacity of the air conditioner which is based on the first air pressure and the second air pressure, detect, from among the plurality of first temperatures, a temperature at which a total value of the first prediction value and the second prediction value is minimized, and set the detected temperature as a second temperature to the air conditioner.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 11, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Akira Minegishi, Akira Kikuchi
  • Publication number: 20170143455
    Abstract: A magnet assembly for a dental magnetic attachment comprising a cup-shaped yoke of substantially Ni-free ferritic stainless steel, a permanent magnet received in a recess of the cup-shaped yoke, a seal member sealing an opening of the cup-shaped yoke, and an abutment-welded portion of the seal member and the cup-shaped yoke; the seal member comprising a center portion of substantially Ni-free ferritic stainless steel; an intermediate portion of substantially Ni-free austenitic stainless steel having a nitrogen content of 0.5-2.0% by mass, and a peripheral portion made of substantially Ni-free ferritic stainless steel having a nitrogen content of 1.3% or less by mass, smaller than in the intermediate portion.
    Type: Application
    Filed: March 19, 2015
    Publication date: May 25, 2017
    Applicant: HITACHI METALS, LTD.
    Inventors: Yukyo TAKADA, Masatoshi TAKAHASHI, Akira KIKUCHI