Patents by Inventor Shozo Kawasaki

Shozo Kawasaki 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: 20190013710
    Abstract: Provided is a rotary electric machine in which lengths of routing portions of coil terminals are made uniform and a coil terminal portion is downsized. A rotary electric machine includes a rotor and a stator, the stator including teeth each wound with a coil, in which the coil consists of a first coil set and a second coil set, each of the first coil set and the second coil set is continuously wound around the two teeth, and includes a first coil terminal, and a second coil terminal to which a routing portion is formed, the first coil terminal of each of the first coil set and the second coil set is directly connected to the second coil terminal of another of the first coil set and the second coil set, the first coil terminal and the second coil terminal of each of the first coil set and the second coil set are arranged on an identical coil end, and the second coil terminal of each of the first coil set and the second coil set is arranged not to cross any other coil terminal in an axial direction.
    Type: Application
    Filed: December 2, 2016
    Publication date: January 10, 2019
    Inventors: Shozo KAWASAKI, Hiroshi KANAZAWA, Yasunaga HAMADA, Kenji NAKAYAMA, Koichi KASHIWA, Masahiro HOSOYA
  • Publication number: 20180367006
    Abstract: The present invention provides a novel electric motor that allows improvement in the electrical insulation performance of the winding wire on the innermost peripheral side between adjacent teeth. A winding wire is wound in three layers around a tooth. The winding wire in a first winding layer is wound from a core back to a collar portion, and the winding wire in a second winding layer is wound from the collar portion to the core back. The start end of the winding wire in the first winding layer wound around a tooth is arranged on the core back side of the second winding layer. The terminal end and its vicinity of the winding wire in the first winding layer is arranged on the collar portion side of the first winding layer to leave a second winding layer start end arrangement space where the start end of the winding wire in the second winding layer is to be arranged.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 20, 2018
    Inventors: Akira FUJIWARA, Kenji NAKAYAMA, Shozo KAWASAKI, Hiroshi KANAZAWA, Masahiro HOSOYA
  • Patent number: 10069362
    Abstract: In a rotating electrical machine, in the case where a cylindrical component is fixed by press fitting or the like, the opening edge of the cylindrical component is widened toward the end to provide peeps for facilitating the insertion of the cylindrical component. However, the outer shape of a rotor expands due to the peeps, and a gap needs to be provided between the rotor and a stator in consideration of the expanded portion of the outer shape, which causes the degradation of the performance of the rotating electrical machine. In addition, in the case where magnets are fixed only by the tightening force of a magnet cover, the greater the centrifugal force becomes, the larger the clamping margin becomes and similarly the larger the peeps become, and thus the expanded portion also becomes larger. However, if the opening edge is not widened to the end, the absence of the peeps makes it difficult to insert the magnet cover.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: September 4, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shozo Kawasaki, Hiroshi Kanazawa, Koichi Kashiwa, Kenji Nakayama, Yasunaga Hamada
  • Publication number: 20160141930
    Abstract: A rotor for an electric power steering motor is configured to include a rotor core having a step skew structure constituted of two independent cores as well as to use shrink fitting to fasten the two cores to a shaft. It may also be configured such that a magnetic center of the rotor core is adjusted by controlling a dimension thereof from a tip of the shaft and by shrink fitting the two cores.
    Type: Application
    Filed: October 15, 2015
    Publication date: May 19, 2016
    Inventors: Hiroshi KANAZAWA, Shozo KAWASAKI, Kenji NAKAYAMA, Yasunaga HAMADA, Koichi KASHIWA, Masahiro HOSOYA
  • Publication number: 20160126793
    Abstract: In a rotating electrical machine, in the case where a cylindrical component is fixed by press fitting or the like, the opening edge of the cylindrical component is widened toward the end to provide peeps for facilitating the insertion of the cylindrical component. However, the outer shape of a rotor expands due to the peeps, and a gap needs to be provided between the rotor and a stator in consideration of the expanded portion of the outer shape, which causes the degradation of the performance of the rotating electrical machine. In addition, in the case where magnets are fixed only by the tightening force of a magnet cover, the greater the centrifugal force becomes, the larger the clamping margin becomes and similarly the larger the peeps become, and thus the expanded portion also becomes larger. However, if the opening edge is not widened to the end, the absence of the peeps makes it difficult to insert the magnet cover.
    Type: Application
    Filed: March 10, 2014
    Publication date: May 5, 2016
    Inventors: Shozo KAWASAKI, Hiroshi KANAZAWA, Koichi KASHIWA, Kenji NAKAYAMA, Yasunaga HAMADA
  • Publication number: 20140145542
    Abstract: In an electrical actuator having a motor in which a plurality of teeth including a continuous winding are formed into a stator core of a ring shape, one wire being continuously wound around the teeth adjacent to each other in the continuous winding, the stator core is configured that step sections of an uneven shape in the axial direction are arranged in butting sections between the teeth connected by the continuous winding, and the uneven shapes are fitted to each other.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 29, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi KANAZAWA, Hirotaka TAKIMOTO, Koichi KASHIWA, Masahiro HOSOYA, Yasunaga HAMADA, Shozo KAWASAKI, Kenji NAKAYAMA
  • Publication number: 20140132197
    Abstract: In an electrical actuator, the number of piece of an inverter is made one in order to miniaturize a control circuit suitable to a mechanically and electrically integrate type, a motor is configured to include two independent three-phase windings thereinside, and motor relays are disposed at neutral points of the independent three-phase windings.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 15, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi KANAZAWA, Junnosuke NAKATSUGAWA, Shozo KAWASAKI, Yasunaga HAMADA, Kenji NAKAYAMA
  • Publication number: 20140084728
    Abstract: A concentrated winding motor having the combination of the number of poles and the number of slots of 10:12 or 14:12 includes coils in the same phase that are adjacent to each other and have mutually different numbers of coil turns.
    Type: Application
    Filed: August 22, 2013
    Publication date: March 27, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Norihisa IWASAKI, Masashi KITAMURA, Hiroshi KANAZAWA, Shozo KAWASAKI
  • Publication number: 20140084755
    Abstract: An on-vehicle rotary electric machine includes a first member provided with a stator, a rotor, and a housing in which the stator and the rotor is housed, a second member adjacent to the first member in an axial direction, and a third member adjacent to the second member in the axial direction at an opposite side of the first member, and the first member, the second member, and the third member are pierced by a through bolt in the axial direction and are fixed.
    Type: Application
    Filed: August 20, 2013
    Publication date: March 27, 2014
    Applicant: Hitachi Automotive System, Ltd.
    Inventors: Yasunaga HAMADA, Kenji NAKAYAMA, Shozo KAWASAKI, Hiroshi KANAZAWA
  • Publication number: 20140084741
    Abstract: A permanent magnet rotating electrical machine includes: a stator including a stator core and a polyphase stator coil incorporated into the stator core; and a rotor including a rotor core and a plurality of permanent magnets which is fixed to the outer peripheral surface of the rotor core, wherein the stator core has a plurality of stator tooth portions forming a slot into which the stator coil is stored, the rotor core is rotatably disposed in opposed relation to the stator, and the stator tooth portion includes at the tip thereof at least one nonmagnetic inner region.
    Type: Application
    Filed: August 21, 2013
    Publication date: March 27, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Norihisa IWASAKI, Masashi KITAMURA, Hiroshi KANAZAWA, Shozo KAWASAKI
  • Publication number: 20140009041
    Abstract: Inner rings of bearings arranged at both ends of a rotor shaft are fixed to the rotor shaft, and outer rings of both of the bearings are arranged at bearing holding parts movably in an axial direction of the rotor. A preload imparting member is attached to one of the bearings, the preload imparting member being configured to bias the rotor shaft in one direction and to apply a biasing force to make a housing and a flange, which constitute a chassis, come close to each other.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 9, 2014
    Inventors: Shozo KAWASAKI, Junnosuke NAKATSUGAWA, Kenji NAKAYAMA, Hiroshi KANAZAWA, Yasunaga HAMADA
  • Publication number: 20130264140
    Abstract: An electrical motor includes: a cylindrical stator core arranged so as to surround a periphery of a rotor via a space, and having a plurality of teeth formed in an inner periphery thereof; a bobbin installed in each of the plurality of teeth; a coil wound around each of the bobbins installed in the teeth; a bottomed cylindrical chassis having a bottom faced with one of end portions in the axial direction of the stator core, and holding an outer periphery of the stator core; and a busbar mold provided with a busbar terminal. An engaging hole is formed at least in either the bottom or the busbar mold at a position facing the bobbin, and an engaging projection that engages with the engaging hole is formed in an opposing part that faces the engaging hole in the bobbin.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 10, 2013
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kenji NAKAYAMA, Shozo KAWASAKI, Hiroshi KANAZAWA, Yasunaga HAMADA
  • Publication number: 20130257200
    Abstract: An in-vehicle motor includes a busbar for connecting plural concentrated-winding stator coils. The busbar includes: an arm extending perpendicular to a longitudinal direction of the busbar; a coil holder provided at a tip of the arm; and a mechanically-twisted portion provided on the arm.
    Type: Application
    Filed: February 15, 2013
    Publication date: October 3, 2013
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kenji NAKAYAMA, Shozo KAWASAKI, Hiroshi KANAZAWA, Junnosuke NAKATSUGAWA, Yasunaga HAMADA
  • Patent number: 8508246
    Abstract: A substrate surface inspection apparatus and method enabling judgment and analysis of the state of even portions of a substrate supported by supports using a captured image are provided. A support mechanism 20 is used where positions of arrangement of substrate support positions along the direction perpendicular to a scan direction by a plurality of first supports 23a to 23d are set outside the image capturing ranges of the substrate 10 by the imaging units 30a, 30b at the first relative position and inside the common image capturing range and where positions of arrangement of substrate support positions along the direction perpendicular to the scan direction by the plurality of second supports 24a to 24d are set outside the image capturing ranges of the substrate by the imaging units at the second relative position and inside the common image capturing range.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: August 13, 2013
    Assignee: Shibaura Mechatronics Corporation
    Inventors: Hiroshi Wakaba, Yoshinori Hayashi, Koichi Miyazono, Yoko Ono, Hideki Mori, Shozo Kawasaki
  • Publication number: 20100310152
    Abstract: A substrate surface inspection apparatus and method enabling judgment and analysis of the state of even portions of a substrate supported by supports using a captured image are provided. A support mechanism 20 is used where positions of arrangement of substrate support positions along the direction perpendicular to a scan direction by a plurality of first supports 23a to 23d are set outside the image capturing ranges of the substrate 10 by the imaging units 30a, 30b at the first relative position and inside the common image capturing range and where positions of arrangement of substrate support positions along the direction perpendicular to the scan direction by the plurality of second supports 24a to 24d are set outside the image capturing ranges of the substrate by the imaging units at the second relative position and inside the common image capturing range.
    Type: Application
    Filed: November 18, 2008
    Publication date: December 9, 2010
    Applicant: Shibaura Mechatronics Coporation
    Inventors: Hiroshi Wakaba, Yoshinori Hayashi, Koichi Miyazono, Yoko Ono, Hideki Mori, Shozo Kawasaki
  • Patent number: 5639084
    Abstract: In a batting practice range where a pitching machine is installed to automatically pitch a ball toward a batter's box, hitting zones such as out zones, hit zones and home run zones are provided in front of the batter's box to detect a ball driven into either one of them from the batter's box for judging the ball as "Out", "Hit" or "Home run". An upright board is installed behind the batter's box and provided with a strike sensor for detecting vibration caused by a ball pitched by the pitching machine and struck the upright board and for judging the ball as "Strike". If a ball pitched by the pitching machine is not detected as any one of "Out", "Hit", "Home run" or "Strike" within a predetermined time, the ball is Judged as a foul ball.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: June 17, 1997
    Assignee: Kawasaki Corporation Kabushiki Kaisha
    Inventor: Shozo Kawasaki
  • Patent number: 4597926
    Abstract: A method of manufacturing a radial flow turbine rotor is disclosed, which comprises the steps of injection molding a rotor body including a conical shaft and a plurality of blades formed on the periphery of the shaft and at an angle to the axis of the shaft from a ceramic material using a mold having parting lines corresponding to blade edges such that projections are formed on the blade edges, sintering the molding thus obtained, and grinding the edge surfaces of the blades facing a casing. The blades are thus provided with projections on their inlet and outlet edges which face a fluid passage.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: July 1, 1986
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akio Ando, Toshihiko Ochiai, Masae Nakanishi, Shozo Kawasaki, Katsutoshi Nishida
  • Patent number: 4573515
    Abstract: A method for electromagnetically stirring molten steel in continuous casting wherein in producing cast slabs or blooms, an electromagnetic stirring force is applied to the unsolidified molten steel in the cast slab or bloom being drawn. An electromagnetic stirrer is installed between drawing positions where the unsolidified thickness is 45% and 15%, respectively, of the thickness as viewed in the direction of the thickness of the cast slab or bloom, and stirring in the casting direction is applied to the unsolidified molten steel in such a manner that the product of the magnetic flux density (gauss) at the interface between the unsolidified and solidified portions and the stirring time in minutes (which is defined as the ratio of the stirring effective length (mm) of the electromagnetic stirrer to the casting speed (m/min)) is 1,600 gauss-min or more per m.sup.3 of the total volume (m.sup.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: March 4, 1986
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Minoru Kitamura, Kenta Yoshii, Shozo Kawasaki, Katsuyoshi Matsuo, Mitsuo Tomonaga
  • Patent number: 4416691
    Abstract: A method for converter blow end-point control which comprises carrying out waste gas analyses on a continuous or intermittent basis in a final stage of the blow and, based on decarburization rate data (waste gas information) obtained from said waste gas analysis, determining the end-point of the blow where the carbon content of the bath equals a target carbon content. The method is characterized by the use of the decarburization rate equation: ##EQU1## which is a differential equation taking account of the delay time (.tau.) of said waste gas information which is a period of time from the time-point of occurrence of a decarburization reaction in the converter till the time when it is detected as said decarburization rate data, and an equation:b'=g(b)which is a functional equation for increasing the predictability of carbon content of the bath at the end-point of the blow.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: November 22, 1983
    Assignee: Kobe Steel, Ltd.
    Inventors: Kiichi Narita, Akitsu Tomita, Nozomu Katagiri, Kazuyuki Seki, Tetuo Sato, Minoru Kitamura, Shozo Kawasaki, Yasuo Kanazuka