Patents by Inventor Hitoshi Nakata

Hitoshi Nakata 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: 11821512
    Abstract: A park lock mechanism configured to restrict or allow a rotation of a rotating shaft includes a park pole configured to restrict the rotation of the rotating shaft and having a first inclined surface, and a park wedge having a second inclined surface capable of abutting on the first inclined surface and configured to move the park pole to a lock position that restricts the rotation of the rotating shaft, in which the park pole includes a protrusion protruding from a first side surface on a park wedge side in a moving direction of the park wedge, and the protrusion is formed so as to be continuous with the first inclined surface, and has a third inclined surface capable of abutting on the second inclined surface.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 21, 2023
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Hitoshi Nakata, Toshihiko Watanabe
  • Publication number: 20230298977
    Abstract: A conductive member constituting a wiring structure includes a first bonding section bonded to an electronic component, a second bonding section bonded to a connection target for the electronic component, and a raised section that protrudes upward from the first bonding section and is connected to the second bonding section. The conductive member has a wire member passage through which a wire member passes, and which is provided in at least a part of the raised section. The wire member passage enables the wire member to be disposed along the raised section from the first bonding section to the second bonding section such that the wire member intersects a surface of the raised section.
    Type: Application
    Filed: January 30, 2023
    Publication date: September 21, 2023
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Hitoshi NAKATA, Naoyuki KANAI, Yuichiro HINATA
  • Publication number: 20230260951
    Abstract: A semiconductor apparatus includes a substrate, a semiconductor device arranged on an upper surface of the substrate, a lead frame bonded to an upper surface of the semiconductor device via a bonding material, the lead frame having a first recess on an upper surface thereof, a wire connected to the first recess, and a resin that seals the substrate, the semiconductor device, the lead frame, and the wire.
    Type: Application
    Filed: December 28, 2022
    Publication date: August 17, 2023
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Hitoshi NAKATA, Yuichiro HINATA, Naoyuki KANAI
  • Publication number: 20220325795
    Abstract: A park lock mechanism configured to restrict or allow a rotation of a rotating shaft includes a park pole configured to restrict the rotation of the rotating shaft and having a first inclined surface, and a park wedge having a second inclined surface capable of abutting on the first inclined surface and configured to move the park pole to a lock position that restricts the rotation of the rotating shaft, in which the park pole includes a protrusion protruding from a first side surface on a park wedge side in a moving direction of the park wedge, and the protrusion is formed so as to be continuous with the first inclined surface, and has a third inclined surface capable of abutting on the second inclined surface.
    Type: Application
    Filed: November 6, 2020
    Publication date: October 13, 2022
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Hitoshi NAKATA, Toshihiko WATANABE
  • Publication number: 20220245550
    Abstract: A method of supporting the centralized management of batteries of a plurality of vehicles. Vehicle information including vehicle identification information, vehicle position information, and battery voltage information is acquired from the vehicles. A plurality of sub-areas are set in a vehicle storage area. Vehicles in need of charging are extracted. A terminal device indicates first display that indicates decision information regarding the vehicles in need of charging in each of the plurality of sub-areas. The terminal device indicates second display that indicates vehicle identification information and vehicle position information regarding the vehicles in need of charging in a management sub-area when a predetermined operation is performed in the terminal device.
    Type: Application
    Filed: December 23, 2021
    Publication date: August 4, 2022
    Applicant: Mazda Motor Corporation
    Inventor: Hitoshi NAKATA
  • Patent number: 11087794
    Abstract: The invention provides a magnetic recording medium including a magnetic layer or a magnetic recording layer having a granular structure in which magnetic crystal grains are well separated from each other. The magnetic recording medium includes a substrate, a seed layer, and a magnetic recording layer, wherein the magnetic recording layer includes a first magnetic layer which is a continuous film consisting of an ordered alloy, and a second magnetic layer having a granular structure consisting of magnetic crystal grains consisting of an ordered alloy and a non-magnetic crystal grain boundary, and the seed layer consists of a material selected from the group consisting of an NaCl-type compound, a spinel-type compound, and a perovskite-type compound.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: August 10, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • Patent number: 10923150
    Abstract: The purpose of the present invention is to provide a magnetic recording medium having a stacked structure of a seed layer including (Mg1-xTix)O and a magnetic recording layer including an L10 ordered alloy, and having improved properties. The method for producing a magnetic recording layer according to the present invention includes the steps of: (1) preparing a substrate; (2) forming a seed layer including (Mg1-xTix)O onto the substrate; (3) plasma etching the seed layer in an atmosphere including inert gas; and (4) forming a magnetic recording layer including an ordered alloy onto the seed layer which has been subjected to the step (3).
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 16, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • Patent number: 10847181
    Abstract: The purpose of the present invention is to provide a perpendicular magnetic recording medium which uses an Ru seed layer having a (002)-oriented hcp structure, and has a magnetic recording layer including a (001)-oriented L10 ordered alloy suitable to perpendicular magnetic recording. The magnetic recording medium of the present invention includes a substrate, a first seed layer containing Ru, a second seed layer containing ZnO, a third seed layer containing MgO, and a magnetic recording layer containing an ordered alloy, in this order, the first seed layer having the (002)-oriented hexagonal closest packed structure.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 24, 2020
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shinji Uchida, Hitoshi Nakata, Tomohiro Moriya, Akira Furuta, Takehito Shimatsu
  • Patent number: 10741207
    Abstract: The present invention aims at providing a magnetic recording medium that can lower a Curie temperature (Tc) of a magnetic material, without increasing an in-plane coercive force and lowering magnetic properties. The magnetic recording medium is a magnetic recording medium comprising a substrate and a magnetic recording layer, the magnetic recording layer comprising an FePtRh ordered alloy, wherein a Rh content in the FePtRh ordered alloy is 10 at % or less.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 11, 2020
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • 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: 10504547
    Abstract: The purpose of the present invention is to provide a magnetic recording medium including a first magnetic recording layer having a large coercive force and a granular structure in which magnetic crystal grains are well separated from each other. The magnetic recording medium of the present invention includes a non-magnetic substrate, a first seed layer, and a first magnetic recording layer formed on the first seed layer, wherein the first seed layer includes Pt, the first magnetic recording layer includes one or more magnetic layers, the magnetic layer in contact with the first seed layer includes Fe, Pt and Ti, and the magnetic layer in contact with the first seed layer has a granular structure consisting of magnetic crystal grains of a L10 type ordered alloy including Fe and Pt, and a non-magnetic grain boundary including Ti.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: December 10, 2019
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hitoshi Nakata, Takehito Shimatsu
  • Patent number: 10388315
    Abstract: The present invention relates to a magnetic recording medium, and this magnetic recording medium includes at least a non-magnetic substrate and a magnetic recording layer. In the magnetic recording medium of the present invention, the magnetic recording layer includes an ordered alloy having an L10-ordered structure, includes Fe, Pt, and V, and has a composition of Pt>Fe. The magnetic recording layer preferably has a granular structure composed of magnetic crystal grains including the ordered alloy and a non-magnetic crystal grain boundary, and the non-magnetic crystal grain boundary includes V.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: August 20, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Hitoshi Nakata, Tomohiro Moriya, Takehito Shimatsu
  • Patent number: 10276200
    Abstract: The purpose of the invention is to provide a magnetic recording medium in which the surface roughness of the magnetic recording layer can be reduced without deterioration of 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 contains Mn, Cr, and O, and has a spinel structure.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 30, 2019
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Hiroyasu Kataoka, Hiroto Kikuchi, Akira Furuta, Takehito Shimatsu
  • Patent number: 10170145
    Abstract: A magnetic recording medium is provided that includes, in the order recited, a substrate; a first seed layer; a second seed layer containing ZnO; a third seed layer containing MgO; and a magnetic recording layer containing an ordered alloy. The first seed layer contains Ru and at least one material selected from the group consisting of oxides, carbides, and nitrides. Employing seed layers enables the magnetic recording medium to be a perpendicular magnetic recording medium by having the magnetic recording layer contain an ordered alloy suitable for perpendicular magnetic recording. Recording density is improved thereby while ensuring required thermal stability. Further, the invention achieves an increased thickness of the magnetic layer and a reduced grain size.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: January 1, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shinji Uchida, Hitoshi Nakata, Tomohiro Moriya, Akira Furuta, Hirohisa Oyama, Takehito Shimatsu
  • Patent number: 10115890
    Abstract: The problem of the invention is to provide a magnetic thin film having a high magnetic anisotropy constant Ku and a high coercive force Hc, and to provide an application device comprising the above magnetic thin film. The magnetic thin film of the present invention includes an ordered alloy including: at least one first element selected from the group consisting of Fe and Ni; at least one second element selected from the group consisting of Pt, Pd, Au and Ir; and Sc.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 30, 2018
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hitoshi Nakata, Takehito Shimatsu
  • Patent number: 10115424
    Abstract: The present invention provides a magnetic recording layer that has a high magnetic anisotropy constant Ku and a low Curie temperature Tc, as well as a magnetic recording medium that incorporates such a magnetic recording layer. The magnetic recording medium of the present invention includes a nonmagnetic substrate and a magnetic recording layer containing an ordered alloy. The ordered alloy may contain at least one element selected from the group consisting of Fe and Ni; at least one element selected from the group consisting of Pt, Pd, Au, Rh and Ir; and Ru.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 30, 2018
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Hiroto Kikuchi, Hiroyasu Kataoka, Akira Furuta, Takehito Shimatsu
  • Publication number: 20180286445
    Abstract: The invention provides a magnetic recording medium including a magnetic layer or a magnetic recording layer having a granular structure in which magnetic crystal grains are well separated from each other. The magnetic recording medium includes a substrate, a seed layer, and a magnetic recording layer, wherein the magnetic recording layer includes a first magnetic layer which is a continuous film consisting of an ordered alloy, and a second magnetic layer having a granular structure consisting of magnetic crystal grains consisting of an ordered alloy and a non-magnetic crystal grain boundary, and the seed layer consists of a material selected from the group consisting of an NaCl-type compound, a spinel-type compound, and a perovskite-type compound.
    Type: Application
    Filed: May 31, 2018
    Publication date: October 4, 2018
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro MORIYA, Hitoshi NAKATA, Takehito SHIMATSU
  • Publication number: 20180122416
    Abstract: A magnetic recording medium is provided that includes, in the order recited, a substrate; a first seed layer; a second seed layer containing ZnO; a third seed layer containing MgO; and a magnetic recording layer containing an ordered alloy. The first seed layer contains Ru and at least one material selected from the group consisting of oxides, carbides, and nitrides. Employing seed layers enables the magnetic recording medium to be a perpendicular magnetic recording medium by having the magnetic recording layer contain an ordered alloy suitable for perpendicular magnetic recording. Recording density is improved thereby while ensuring required thermal stability. Further, the invention achieves an increased thickness of the magnetic layer and a reduced grain size.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Shinji UCHIDA, Hitoshi NAKATA, Tomohiro MORIYA, Akira FURUTA, Hirohisa OYAMA, Takehito SHIMATSU
  • Publication number: 20180122415
    Abstract: The purpose of the present invention is to provide a perpendicular magnetic recording medium which uses an Ru seed layer having a (002)-oriented hcp structure, and has a magnetic recording layer including a (001)-oriented L10 ordered alloy suitable to perpendicular magnetic recording. The magnetic recording medium of the present invention includes a substrate, a first seed layer containing Ru, a second seed layer containing ZnO, a third seed layer containing MgO, and a magnetic recording layer containing an ordered alloy, in this order, the first seed layer having the (002)-oriented hexagonal closest packed structure.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Shinji UCHIDA, Hitoshi NAKATA, Tomohiro MORIYA, Akira FURUTA, Takehito SHIMATSU
  • Publication number: 20180040346
    Abstract: The purpose of the present invention is to provide a magnetic recording medium having a stacked structure of a seed layer including (Mg1-xTix)O and a magnetic recording layer including an L10 ordered alloy, and having improved properties. The method for producing a magnetic recording layer according to the present invention includes the steps of: (1) preparing a substrate; (2) forming a seed layer including (Mg1-xTix)O onto the substrate; (3) plasma etching the seed layer in an atmosphere including inert gas; and (4) forming a magnetic recording layer including an ordered alloy onto the seed layer which has been subjected to the step (3).
    Type: Application
    Filed: October 2, 2017
    Publication date: February 8, 2018
    Applicants: FUJI ELECTRIC CO., LTD., TOHOKU UNIVERSITY
    Inventors: Tomohiro MORIYA, Hitoshi NAKATA, Takehito SHIMATSU