Patents by Inventor Norio Takahashi

Norio Takahashi 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: 11603002
    Abstract: A charge and discharge device for an electric vehicle includes a cable, a holder, and a cable suspending portion. The cable has a distal end at which a charge connector is provided. The charge connector is coupled to an electric vehicle to charge and discharge. The holder holds the charge connector. The cable suspending portion suspends and holds the cable. The holder and the cable suspending portion are disposed at a housing installed on a wall surface. The cable is extracted from the housing. The housing has a side portion at which a tapered surface as a surface facing obliquely ahead is disposed. The holder is mounted on the tapered surface.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: March 14, 2023
    Assignees: KAWAMURA ELECTRIC, INC., HONDA MOTOR CO., LTD.
    Inventors: Haruhiko Murase, Norio Takahashi, Makoto Ogawa, Michihito Okado
  • Patent number: 11565599
    Abstract: A charge and discharge device for an electric vehicle includes a cable, a holder, and a cable suspending portion. The cable has a distal end at which a charge connector is provided. The charge connector is coupled to an electric vehicle to charge and discharge. The holder holds the charge connector. The cable suspending portion suspends and holds the cable. The holder and the cable suspending portion are disposed at a housing installed on a wall surface. The cable is extracted from the housing. The housing has a side portion at which a tapered surface as a surface facing obliquely ahead is disposed. The holder is mounted on the tapered surface.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 31, 2023
    Assignees: KAWAMURA ELECTRIC, INC., HONDA MOTOR CO., LTD.
    Inventors: Haruhiko Murase, Norio Takahashi, Makoto Ogawa, Michihito Okado
  • Patent number: 11346885
    Abstract: According to one embodiment, a winding interlayer short-circuit detection apparatus includes a processor configured to perform at least an interlayer short-circuit detecting process to detect, based on a difference between a measurement value of a field current in a field winding of a brushless exciter and a reference value, and based on a difference between a calculated value of an armature reaction voltage induced in the field winding of the brushless exciter and a reference value, a presence or absence of an interlayer short-circuit that may occur in any of the field winding of the brushless exciter, an armature winding of the brushless exciter, and a field winding of a rotary electric machine body.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: May 31, 2022
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Takahiro Sato, Masafumi Fujita, Norio Takahashi, Ken Nagakura, Koji Ando, Yoichi Tomoe
  • Publication number: 20220021277
    Abstract: In general, according to one embodiment, there is provided an abnormality detection system of a rotary electrical machine. The system includes a plurality of magnetic flux sensors disposed at intervals on a back of a stator core in a circumferential direction or an axial direction, and configured to detect a magnetic flux, and an abnormality detection apparatus configured to detect an abnormality of the stator core from a predetermined event that appears in a composite signal or a differential signal obtained from signals respectively output from at least two magnetic flux sensors of the plurality of magnetic flux sensors.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 20, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Norio Takahashi, Masafumi Fujita, Takahiro Sato, Takashi Ueda, Ken Nagakura, Masashi Kobayashi, Koji Ando
  • Patent number: 11165291
    Abstract: A stator core support device according to an embodiment includes plural types of support members that support a stator core on a stator frame disposed radially outward. These support members are combined so as to form a closed circuit portion. Then, an insulating part for electrically insulating part of the closed circuit portion is provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: November 2, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norio Takahashi, Masafumi Fujita, Takahiro Sato, Hideyuki Nakamura, Ken Nagakura, Kazuma Tsujikawa
  • Publication number: 20210293886
    Abstract: According to one embodiment, a winding interlayer short-circuit detection apparatus includes a processor configured to perform at least an interlayer short-circuit detecting process to detect, based on a difference between a measurement value of a field current in a field winding of a brushless exciter and a reference value, and based on a difference between a calculated value of an armature reaction voltage induced in the field winding of the brushless exciter and a reference value, a presence or absence of an interlayer short-circuit that may occur in any of the field winding of the brushless exciter, an armature winding of the brushless exciter, and a field winding of a rotary electric machine body.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Takahiro SATO, Masafumi FUJITA, Norio TAKAHASHI, Ken NAGAKURA, Koji ANDO, Yoichi TOMOE
  • Patent number: 11031832
    Abstract: According to one embodiment, a stator includes spacing strips disposed to be interposed in the electromagnetic steel plates for each predetermined set of plates of the electromagnetic steel plates, each of the spacing strips extending in a radial direction of the stator iron core to form ventilation ducts, a spacing strip attachment plate which is disposed between the spacing strips and the set of plates of the electromagnetic steel plates to fix the spacing strips, and an insulating layer which covers the entirety of the spacing strip attachment plate and the spacing strips fixed to the spacing strip attachment plate.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 8, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Shunsuke Ishizaki, Ken Nagakura, Yuichiro Gunji, Norio Takahashi, Masahiro Seki
  • Patent number: 10859088
    Abstract: Provided is a TiCx—(Ti—Mo) sliding material having a binder phase made of a Ti—Mo alloy, and a hard phase containing TiCx, wherein the TiCx—(Ti—Mo) sliding material satisfies all the following conditions: (1) a total area of the binder phase and the hard phase is 90% or more of an area of a field of view; (2) a total area of the binder phase is 15% or more and 20% or less of the area of the field of view; (3) in the binder phase, a total area of the binder phase having a diameter equivalent to 10 ?m or more and 50 ?m or less; (4) in the binder phase, a total area of the binder phase having a diameter equivalent to less than 10 ?m; and (5) a Mo concentration in the binder phase is 25 wt % or more and 35 wt % or less.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 8, 2020
    Assignees: EBARA CORPORATION, NIPPON TUNGSTEN CO., LTD.
    Inventors: Nobuaki Ito, Kenichi Sugiyama, Hiroshi Yakuwa, Norio Takahashi, Makoto Komiya, Kenji Fujimoto
  • Patent number: 10770945
    Abstract: According to one embodiment, there is provided a rotating electrical machine coil with a conductor and an insulation layer that is provided around the conductor to cover the conductor, the rotating electrical machine coil including a linear part of the coil and a coil end that is separable from and electrically connectable to the linear part of the coil.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 8, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Hidehito Matsuzaki, Tetsushi Okamoto, Fumio Sawa, Miki Nakamura, Atsushi Yamamoto, Yo Sasaki, Masafumi Fujita, Yoshihiro Taniyama, Takashi Harakawa, Norio Takahashi, Takaaki Hirose, Hiroaki Ishizuka
  • Patent number: 10749420
    Abstract: According to one embodiment a synchronous reluctance rotating electrical machine of an embodiment has a shaft and a rotor core. The rotor core is fixed to the shaft, in which cavity portions being formed in a projected shape toward a radially inward direction are formed into multilayers for each pole and bridges are respectively formed between the cavity portions and an outer circumferential surface. The thickness of an outermost bridge positioned outermost on the pole end side among the plurality of bridges is formed to be gradually thicker from the pole center side toward the pole end side. Among the plurality of bridges, the thickness of an intermediate bridge positioned on the pole center side of the outermost bridge with one bridge interposed therebetween is formed to be gradually thicker from the pole end side toward the pole center side.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 18, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Norio Takahashi, Katsutoku Takeuchi, Makoto Matsushita, Daisuke Misu, Toshio Hasebe
  • Patent number: 10587159
    Abstract: According to one embodiment, a rotor includes a shaft and a rotor core. A plurality of flux barriers are formed at the rotor core. The flux barrier has a plurality of bridges, and one or more barrier regions. When a width of the bridge of a first flux barrier is defined as wa, a width of the bridge of a second flux barrier is defined as wb, a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the first flux barrier by an outer radius of the rotor core is defined as a, and a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the second flux barrier by the outer radius of the rotor core is defined as b, and when f(x)=(1?x{circumflex over (?)}2){circumflex over (?)}(3/2) and g(x)=(1?x{circumflex over (?)}3), a relationship of f(b)/f(a)?wb/wa?g(b)/g(a) is satisfied.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: March 10, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Katsutoku Takeuchi, Makoto Matsushita, Norio Takahashi, Daisuke Misu, Toshio Hasebe
  • Patent number: 10530203
    Abstract: According to one embodiment, a rotor includes a shaft and a rotor core fixed to the shaft. A plurality of flux barriers are formed at the rotor core. Each of the flux barriers is formed with a plurality of bridges, and one or more barrier regions that have a lower permeability than a portion other than each of the flux bathers in the rotor core between the plurality of bridges. A permanent magnet is provided in at least one of the barrier regions. A magnetizing direction of the permanent magnet is directed in a direction that intersects a longitudinal direction of the flux barrier. A value of (?0×SM×Br)/(?re×tFB×wB) is within a range between 1.2 and 3.0.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 7, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Katsutoku Takeuchi, Makoto Matsushita, Norio Takahashi, Daisuke Misu, Toshio Hasebe
  • Patent number: 10447126
    Abstract: According to one embodiment, an induction motor includes a stator and a rotor. The stator has a stator coil disposed at a stator core having a plurality of stator slots. The rotor has a rotor core rotatably provided with respect to the stator. The rotor core includes a plurality of rotor teeth and a rotor slot formed between the plurality of rotor teeth and having a rotor conductor disposed therein. The rotor teeth include a teeth main body and a flange. The teeth main body extends in a radial direction of the rotor core. The flange extends in a rotating direction of the rotor core from a distal end of the teeth main body. Then, a recessed surface is formed on at least part of an outer circumferential surface of a radial outer side in the flange.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 15, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Matsushita, Daisuke Misu, Norio Takahashi, Katsutoku Takeuchi, Fumiaki Ito, Toshio Hasebe
  • Publication number: 20190312472
    Abstract: According to one embodiment, a stator includes spacing strips disposed to be interposed in the electromagnetic steel plates for each predetermined set of plates of the electromagnetic steel plates, each of the spacing strips extending in a radial direction of the stator iron core to form ventilation ducts, a spacing strip attachment plate which is disposed between the spacing strips and the set of plates of the electromagnetic steel plates to fix the spacing strips, and an insulating layer which covers the entirety of the spacing strip attachment plate and the spacing strips fixed to the spacing strip attachment plate.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 10, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Shunsuke ISHIZAKI, Ken NAGAKURA, Yuichiro GUNJI, Norio TAKAHASHI, Masahiro SEKI
  • Publication number: 20190207441
    Abstract: According to one embodiment, a rotor includes a shaft and a rotor core. A plurality of flux barriers are formed at the rotor core. The flux barrier has a plurality of bridges, and one or more barrier regions. When a width of the bridge of a first flux barrier is defined as wa, a width of the bridge of a second flux barrier is defined as wb, a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the first flux barrier by an outer radius of the rotor core is defined as a, and a value obtained by dividing a radius of a smallest circle that is tangent to a central line of the second flux barrier by the outer radius of the rotor core is defined as b, and when f(x)=(1?x{circumflex over (?)}2){circumflex over (?)}(3/2) and g(x)=(1?x{circumflex over (?)}3), a relationship of f(b)/f(a)?wb/wa?g(b)/g(a) is satisfied.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Katsutoku TAKEUCHI, Makoto MATSUSHITA, Norio TAKAHASHI, Daisuke MISU, Toshio HASEBE
  • Publication number: 20190173336
    Abstract: According to one embodiment, a rotor includes a shaft and a rotor core fixed to the shaft. A plurality of flux barriers are formed at the rotor core. Each of the flux barriers is formed with a plurality of bridges, and one or more barrier regions that have a lower permeability than a portion other than each of the flux bathers in the rotor core between the plurality of bridges. A permanent magnet is provided in at least one of the barrier regions. A magnetizing direction of the permanent magnet is directed in a direction that intersects a longitudinal direction of the flux barrier. A value of (?0×SM×Br)/(?re×tFB×wB) is within a range between 1.2 and 3.0.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Katsutoku TAKEUCHI, Makoto MATSUSHITA, Norio TAKAHASHI, Daisuke MISU, Toshio HASEBE
  • Publication number: 20190113047
    Abstract: Provided is a TiCx—(Ti—Mo) sliding material having a binder phase made of a Ti—Mo alloy, and a hard phase containing TiCx, wherein the TiCx—(Ti—Mo) sliding material satisfies all the following conditions: (1) a total area of the binder phase and the hard phase is 90% or more of an area of a field of view; (2) a total area of the binder phase is 15% or more and 20% or less of the area of the field of view; (3) in the binder phase, a total area of the binder phase having a diameter equivalent to 10 ?m or more and 50 ?m or less; (4) in the binder phase, a total area of the binder phase having a diameter equivalent to less than 10 ?m; and (5) a Mo concentration in the binder phase is 25 wt % or more and 35 wt % or less.
    Type: Application
    Filed: February 23, 2017
    Publication date: April 18, 2019
    Inventors: Nobuaki ITO, Kenichi SUGIYAMA, Hiroshi YAKUWA, Norio TAKAHASHI, Makoto KOMIYA, Kenji FUJIMOTO
  • Publication number: 20190109527
    Abstract: According to one embodiment a synchronous reluctance rotating electrical machine of an embodiment has a shaft and a rotor core. The rotor core is fixed to the shaft, in which cavity portions being formed in a projected shape toward a radially inward direction are formed into multilayers for each pole and bridges are respectively formed between the cavity portions and an outer circumferential surface. The thickness of an outermost bridge positioned outermost on the pole end side among the plurality of bridges is formed to be gradually thicker from the pole center side toward the pole end side. Among the plurality of bridges, the thickness of an intermediate bridge positioned on the pole center side of the outermost bridge with one bridge interposed therebetween is formed to be gradually thicker from the pole end side toward the pole center side.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Norio Takahashi, Katsutoku Takeuchi, Makoto Matsushita, Daisuke Misu, Toshio Hasebe
  • Publication number: 20190052134
    Abstract: A stator core support device according to an embodiment includes plural types of support members that support a stator core on a stator frame disposed radially outward. These support members are combined so as to form a closed circuit portion. Then, an insulating part for electrically insulating part of the closed circuit portion is provided.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 14, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Norio TAKAHASHI, Masafumi FUJITA, Takahiro SATO, Hideyuki NAKAMURA, Ken NAGAKURA, Kazuma TSUJIKAWA
  • Patent number: 10069390
    Abstract: A synchronous reluctance rotating electric machine of an embodiment has a rotor iron core provided with a plurality of air gap layers, and a stator. The rotor iron core has a plurality of band-shaped magnetic path layers, and at least one or more bridges that bridge across each of the air gaps adjacent to each other among the plurality of air gap layers. The bridges of the air gaps adjacent to each other are disposed on different straight lines.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 4, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Daisuke Misu, Katsutoku Takeuchi, Makoto Matsushita, Yutaka Hashiba, Norio Takahashi, Kazuaki Yuuki, Toshio Hasebe