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: 20250066887Abstract: 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: ApplicationFiled: January 6, 2023Publication date: February 27, 2025Applicant: NIPPON STEEL CORPORATIONInventors: Masafumi AZUMA, Akihiro SENGOKU, Shota KIKUCHI
-
Patent number: 12227280Abstract: 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: GrantFiled: February 7, 2022Date of Patent: February 18, 2025Assignee: HITACHI ASTEMO, LTD.Inventors: Kenichi Kirihara, Norio Kikuchi, Yusuke Amma, Kyohei Fukushi, Akihiro Kogure
-
Publication number: 20240428965Abstract: 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: ApplicationFiled: September 6, 2022Publication date: December 26, 2024Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Japan Superconductivity Application Development Inc.Inventors: Akihiro KIKUCHI, Yasuo IIJIMA, Masaru YAMAMOTO, Masatoshi KAWANO, Masato OTSUBO
-
Publication number: 20240301163Abstract: 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: ApplicationFiled: November 9, 2021Publication date: September 12, 2024Applicants: RIMTEC Corporation, National Institute for Materials ScienceInventors: Masaki Takeuchi, Akihiro Kikuchi, Izumi Ichinose, Kazuto Hirata, Yasuo Iijima
-
Publication number: 20240117483Abstract: 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: ApplicationFiled: February 28, 2022Publication date: April 11, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akihiro KIKUCHI, Hitoshi KITAGUCHI, Yasuo IIJIMA, Kazuto HIRATA
-
Patent number: 11605869Abstract: 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: GrantFiled: January 26, 2021Date of Patent: March 14, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
-
Patent number: 11411428Abstract: 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: GrantFiled: September 25, 2019Date of Patent: August 9, 2022Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kota Maeba, Akihiro Kikuchi, Wataru Horio, Hiroyuki Fujii, Kenji Hanamura, Tomoki Ito
-
Patent number: 11025056Abstract: 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: GrantFiled: January 22, 2018Date of Patent: June 1, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiro Kikuchi, Kenji Hanamura, Tomoki Ito
-
Publication number: 20210151845Abstract: 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: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
-
Patent number: 10990313Abstract: 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: GrantFiled: September 6, 2019Date of Patent: April 27, 2021Assignee: HITACHI, LTD.Inventors: Akihiro Kikuchi, Takayuki Fukatani
-
Publication number: 20210088552Abstract: 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: ApplicationFiled: July 9, 2018Publication date: March 25, 2021Applicants: Kyosei Co., Ltd., National Institute of Materials ScienceInventors: Tsutomu SATO, Yoshikazu SAKAI, Akihiro KIKUCHI
-
Patent number: 10944145Abstract: 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: GrantFiled: March 30, 2020Date of Patent: March 9, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
-
Publication number: 20200264794Abstract: 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: ApplicationFiled: September 6, 2019Publication date: August 20, 2020Inventors: Akihiro KIKUCHI, Takayuki FUKATANI
-
Publication number: 20200227806Abstract: 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: ApplicationFiled: March 30, 2020Publication date: July 16, 2020Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
-
Patent number: 10658188Abstract: 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: GrantFiled: November 16, 2017Date of Patent: May 19, 2020Assignee: ABLIC INC.Inventors: Akihiro Kikuchi, Takeshi Kuroda, Shintaro Koseki
-
Patent number: 10644370Abstract: 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: GrantFiled: July 17, 2019Date of Patent: May 5, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto
-
Publication number: 20200019199Abstract: 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: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Inventors: Kota MAEBA, Akihiro KIKUCHI, Wataru HORIO, Hiroyuki FUJII, Kenji HANAMURA, Tomoki ITO
-
Publication number: 20190341665Abstract: 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: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Inventors: Takahiro BABA, Akihiro KIKUCHI, Genro KATO, Kosuke NISHINO, Nobuo IKEMOTO
-
Publication number: 20190326752Abstract: 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: ApplicationFiled: January 22, 2018Publication date: October 24, 2019Inventors: Akihiro KIKUCHI, Kenji HANAMURA, Tomoki ITO
-
Patent number: 10424824Abstract: 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: GrantFiled: January 17, 2017Date of Patent: September 24, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takahiro Baba, Akihiro Kikuchi, Genro Kato, Kosuke Nishino, Nobuo Ikemoto