Patents by Inventor Hisami Katsurayama

Hisami Katsurayama 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).

  • Rotary electric machine using permanent magnet
    Patent number: 9780611
    Abstract: A permanent magnet type rotary electric machine has a stator, a rotor which is rotatably provided inside the stator, and permanent magnets arranged in a rotor core of the rotor. An angle ? between a straight line connecting the center of the rotor to a middle position between two permanent magnets arranged in the V shape, and a straight line connecting the center of the rotor to an outer circumferential top of one of the permanent magnets has the relation: 0.65<?(=?/(180/P))<0.80 in which P is the number of poles in the rotor. When a rear depth of a slot of the stator core is D, and a burying depth of the permanent magnet in the radial direction of the rotor core is t, D/t=A has the relation: 0.8<A<1.1.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 3, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION
    Inventors: Makoto Matsushita, Norio Takahashi, Daisuke Misu, Katsutoku Takeuchi, Yutaka Hashiba, Masayuki Kawakami, Takashi Araki, Yuji Yamamoto, Hisami Katsurayama
  • Stator winding for rotary electric machine, stator for rotary electric machine, method of manufacturing stator for rotary electric machine, and jig used in manufacturing stator for rotary electric machine
    Patent number: 9698643
    Abstract: A stator winding of a rotary electric machine includes windings for each pole of each phase being configured by a single layer lap wound coil. The single layer lap-wound coil includes combination coils each configured by two or more divided unit coils of the same phase being disposed one over the other in a radial direction inside slots of a stator core. The combination coils each comprise a first-row unit coil and a second-row unit coil disposed in a radially inner side of the stator core with respect to the first-row unit coil. A turns count of the first-row unit coil equals a turns count of the second-row unit coil. A count of lead wires of the first-row unit coil differs from a count of lead wires of the second-row unit coil.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 4, 2017
    Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP.
    Inventors: Hisaaki Shimozu, Hisami Katsurayama, Takeo Kaito, Hiroaki Nagashima
  • STATOR WINDING FOR ROTARY ELECTRIC MACHINE, STATOR FOR ROTARY ELECTRIC MACHINE, METHOD OF MANUFACTURING STATOR FOR ROTARY ELECTRIC MACHINE, AND JIG USED IN MANUFACTURING STATOR FOR ROTARY ELECTRIC MACHINE
    Publication number: 20160156240
    Abstract: A stator winding of a rotary electric machine provided with windings for each pole of each phase being configured by a single layer lap wound coil.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: Hisaaki SHIMOZU, Hisami KATSURAYAMA, Takeo KAITO, Hiroaki NAGASHIMA
  • ROTARY ELECTRIC MACHINE USING PERMANENT MAGNET
    Publication number: 20160087495
    Abstract: A permanent magnet type rotary electric machine has a stator, a rotor which is rotatably provided inside the stator, and permanent magnets arranged in a rotor core of the rotor. An angle ? between a straight line connecting the center of the rotor to a middle position between two permanent magnets arranged in the V shape, and a straight line connecting the center of the rotor to an outer circumferential top of one of the permanent magnets has the relation: 0.65<?(=?/(180/P))<0.80 in which P is the number of poles in the rotor. When a rear depth of a slot of the stator core is D, and a burying depth of the permanent magnet in the radial direction of the rotor core is t, D/t=A has the relation: 0.8<A<1.1.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 24, 2016
    Inventors: Makoto Matsushita, Norio Takahashi, Daisuke Misu, Katsutoku Takeuchi, Yutaka Hashiba, Masayuki Kawakami, Takashi Araki, Yuji Yamamoto, Hisami Katsurayama