Patents by Inventor Akihiro Kikuchi

Akihiro 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).

  • Publication number: 20250066887
    Abstract: This steel sheet for hot-stamping includes: a base steel sheet having a predetermined chemical composition; and a galvanized layer formed on a surface of the base steel sheet, in which a microstructure at a position at ¼ depth which is in a range of ? to ? of a sheet thickness in a sheet thickness direction from the surface of the base steel sheet contains, in volume fraction, ferrite: 20% to 95% and pearlite: 5% to 80%, the remaining structure including bainite, the galvanized layer has a coating amount of 90 g/m2 or more, and when the maximum value of the B content in the galvanized layer is Bps and the B content at the position at ¼ depth of the base steel sheet is Bqs, Bps is 1.2 times or more Bqs.
    Type: Application
    Filed: January 6, 2023
    Publication date: February 27, 2025
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Masafumi AZUMA, Akihiro SENGOKU, Shota KIKUCHI
  • Patent number: 12227280
    Abstract: A ship steering device includes a handle which is mechanically separated from a rudder mechanism, a steering angle detecting unit that detects a steering angle of the handle, a reaction force motor that generates reaction force torque to be applied to the handle, and a reaction force controller that controls, based on a steering characteristics map, the reaction force motor in such a way that the reaction force torque in accordance with the steering angle is obtained. The steering characteristics map has characteristics in such a way that the amount of change in an aiming steering torque relative to the steering angle is smaller in a second steering range where the steering angle is larger than that in a first steering range than the first steering region where the steering angle is set in advance from zero.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: February 18, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kenichi Kirihara, Norio Kikuchi, Yusuke Amma, Kyohei Fukushi, Akihiro Kogure
  • Publication number: 20240428965
    Abstract: The purpose of the present invention is to provide a niobium-aluminum precursor wire having properties such as expression of flexibility and ensuring a large single-wire length, as well as a twisted wire, a superconducting wire, and a superconducting twisted wire formed of the niobium-aluminum precursor wire. The present invention provides a niobium-aluminum precursor wire and a twisted wire using the same, the niobium-aluminum precursor wire including: a rod-like winding core (5) formed of a stabilized copper, or a stabilized copper and an unstabilized copper; a laminated body (3) that is wound around the winding core (5) and that is formed of an aluminum foil and a niobium foil laminated one on the other; and a covering body (1) that covers the circumference of the laminated body and that is formed of a stabilized copper, or a stabilized copper and an unstabilized copper. The volume ratio of the stabilized copper with respect to the unstabilized copper contained in the precursor wire is 0.5-2.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 26, 2024
    Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Japan Superconductivity Application Development Inc.
    Inventors: Akihiro KIKUCHI, Yasuo IIJIMA, Masaru YAMAMOTO, Masatoshi KAWANO, Masato OTSUBO
  • Publication number: 20240301163
    Abstract: Provided is a polymerizable composition comprising a norbornene-based monomer, rare earth element-containing particles having a number-based modal size of 0.05 ?m or more and less than 1.5 ?m, and a metathesis polymerization catalyst.
    Type: Application
    Filed: November 9, 2021
    Publication date: September 12, 2024
    Applicants: RIMTEC Corporation, National Institute for Materials Science
    Inventors: Masaki Takeuchi, Akihiro Kikuchi, Izumi Ichinose, Kazuto Hirata, Yasuo Iijima
  • Publication number: 20240117483
    Abstract: The problem addressed by the present invention is to provide a copper-coated aluminum wire material with a reduced weight and excellent adhesiveness, and a production method therefor. This copper-coated aluminum wire material is provided with an aluminum wire material comprising aluminum or an aluminum alloy and a thin copper film covering the aluminum wire material. The space factor of the thin copper film is in the range of 0.2% to 4% and the adhesiveness between the aluminum wire material and the thin copper film based on a scratch test compliant with JIS R 3255 is at least 10 mN.
    Type: Application
    Filed: February 28, 2022
    Publication date: April 11, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Akihiro KIKUCHI, Hitoshi KITAGUCHI, Yasuo IIJIMA, Kazuto HIRATA
  • Patent number: 11605869
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: March 14, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
  • Patent number: 11411428
    Abstract: In a power converter including: a first DC-DC converter, an inverter, and a control circuit, a second DC-DC converter that controls an input and an output of a power storage unit is connectable to a DC bus. The control circuit deactivates a reverse power flow suppression function for suppressing a reverse power flow from the inverter to a power system when the second DC-DC converter is not connected to the DC bus and activates the reverse power flow suppression function when the second DC-DC converter is connected to the DC bus.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 9, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kota Maeba, Akihiro Kikuchi, Wataru Horio, Hiroyuki Fujii, Kenji Hanamura, Tomoki Ito
  • Patent number: 11025056
    Abstract: In a power converter, a DC bus is supplied with a DC power from a voltage conversion circuit for regulating a voltage of a power output from a DC power supply, a voltage of the DC power being regulated by the voltage conversion circuit. An inverter converts a DC power on the DC bus into an AC power and supplies the AC power as converted to a power system. A controller controls the inverter. When it is necessary to suppress an output, the controller suppresses the AC power supplied by the inverter to increase a voltage on the DC bus.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 1, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akihiro Kikuchi, Kenji Hanamura, Tomoki Ito
  • Publication number: 20210151845
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
  • Patent number: 10990313
    Abstract: In a multi-storage node system including a plurality of storage nodes, a plurality of storage nodes include a plurality of drives that store data and a control unit that controls writing of data to the drives. The control unit divides storage areas of the plurality of drives into a plurality of physical chunks, allocates the divided physical chunks to logical chunks, and stores data. A plurality of storage nodes are divided into fault sets affected by a single failure and manage the multi-storage node system. The control unit of one primary node that manages the multi-storage node system among a plurality of storage nodes includes a database for managing allocation of the physical chunks of a plurality of storage nodes to the logical chunks for each drive, each storage node, or for each fault set.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 27, 2021
    Assignee: HITACHI, LTD.
    Inventors: Akihiro Kikuchi, Takayuki Fukatani
  • Publication number: 20210088552
    Abstract: The present invention focuses on a material constituting a contact pin and a processing technique of the material, and is directed to manufacturing a conductive member by using a material and a processing technique which are different from those in the related art. The conductive member is obtained by applying etching treatment to a copper-silver alloy including copper and silver while using at least copper alloy etching liquid, but silver etching liquid may also be selectively added to the copper alloy etching liquid.
    Type: Application
    Filed: July 9, 2018
    Publication date: March 25, 2021
    Applicants: Kyosei Co., Ltd., National Institute of Materials Science
    Inventors: Tsutomu SATO, Yoshikazu SAKAI, Akihiro KIKUCHI
  • Patent number: 10944145
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 9, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
  • Publication number: 20200264794
    Abstract: In a multi-storage node system including a plurality of storage nodes, a plurality of storage nodes include a plurality of drives that store data and a control unit that controls writing of data to the drives. The control unit divides storage areas of the plurality of drives into a plurality of physical chunks, allocates the divided physical chunks to logical chunks, and stores data. A plurality of storage nodes are divided into fault sets affected by a single failure and manage the multi-storage node system. The control unit of one primary node that manages the multi-storage node system among a plurality of storage nodes includes a database for managing allocation of the physical chunks of a plurality of storage nodes to the logical chunks for each drive, each storage node, or for each fault set.
    Type: Application
    Filed: September 6, 2019
    Publication date: August 20, 2020
    Inventors: Akihiro KIKUCHI, Takayuki FUKATANI
  • Publication number: 20200227806
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
  • Patent number: 10658188
    Abstract: Provided is a method of manufacturing a semiconductor device with which a trench shape having vertical, flat, and smooth side wall surfaces can be formed even at room temperature. A semiconductor substrate is placed on a sample stage which is kept at room temperature in a reaction container. A trench is formed in the semiconductor substrate by plasma etching that uses etching gas including oxygen and sulfur hexafluoride, while controlling the gas ratio of oxygen to sulfur hexafluoride so that the gas ratio is from 70% to 100%.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 19, 2020
    Assignee: ABLIC INC.
    Inventors: Akihiro Kikuchi, Takeshi Kuroda, Shintaro Koseki
  • Patent number: 10644370
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 5, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
  • Publication number: 20200019199
    Abstract: In a power converter including: a first DC-DC converter, an inverter, and a control circuit, a second DC-DC converter that controls an input and an output of a power storage unit is connectable to a DC bus. The control circuit deactivates a reverse power flow suppression function for suppressing a reverse power flow from the inverter to a power system when the second DC-DC converter is not connected to the DC bus and activates the reverse power flow suppression function when the second DC-DC converter is connected to the DC bus.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Inventors: Kota MAEBA, Akihiro KIKUCHI, Wataru HORIO, Hiroyuki FUJII, Kenji HANAMURA, Tomoki ITO
  • Publication number: 20190341665
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
  • Publication number: 20190326752
    Abstract: In a power converter, a DC bus is supplied with a DC power from a voltage conversion circuit for regulating a voltage of a power output from a DC power supply, a voltage of the DC power being regulated by the voltage conversion circuit. An inverter converts a DC power on the DC bus into an AC power and supplies the AC power as converted to a power system. A controller controls the inverter. When it is necessary to suppress an output, the controller suppresses the AC power supplied by the inverter to increase a voltage on the DC bus.
    Type: Application
    Filed: January 22, 2018
    Publication date: October 24, 2019
    Inventors: Akihiro KIKUCHI, Kenji HANAMURA, Tomoki ITO
  • Patent number: 10424824
    Abstract: An electronic apparatus includes a substrate and an electrical element mounted on the substrate. The electrical element includes a base material including a first principal surface and a second principal surface that are deformable and flat or substantially flat surfaces and a conductor pattern included on the base material. The electrical element further includes a first connection portion and a second connection portion that connect to a circuit included on the substrate and a transmission line portion located in a position different from positions of the first connection portion and the second connection portion that electrically connects the first connection portion and the second connection portion. The conductor pattern includes a conductor pattern of the first connection portion, a conductor pattern of the second connection portion, a conductor pattern of the transmission line portion, and an electrical-element-side bonding pattern arranged in the transmission line portion.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 24, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto