Patents by Inventor Yuzuru Kobayashi

Yuzuru Kobayashi 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: 10516321
    Abstract: This invention is concerning a rectifying device in an AC power generator, the rectifying device including a broken-ring-shaped heat sink supporting a rectifying element and cooling the rectifying element and a circuit board holding the heat sink. The circuit board includes an engaging projection. The heat sink includes a hole, into which the engaging projection is fit, and a gravity center adjustment portion.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 24, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yuzuru Kobayashi
  • Patent number: 10491081
    Abstract: In the present rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion, and is configured such that only a housing linking portion, a stator winding connecting portion, and a voltage regulator connecting portion protrude from the first rectifying element holding portion and the second rectifying element holding portion when viewed from an axial direction, a plurality of first radially inner fins are formed on a radially inner side of the first rectifying element holding portion, and a plurality of second radially outer fins are formed on a radially outer side of the second rectifying element holding portion.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: November 26, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masao Akiyoshi, Yuzuru Kobayashi
  • Publication number: 20190305145
    Abstract: A total of n light receiving surface finger electrodes are arranged on a light receiving surface. A total of (n?1)√óm1/m2+1 second collecting electrodes are arranged on a back surface. On a plane of projection parallel, m2 light receiving surface finger electrodes and ml back surface finger electrodes are included an interval between a first position and a second position. On the plane of projection, the auxiliary wiring is provided at a third position at which only the light receiving surface finger electrode is present. A length of the auxiliary wiring is smaller than a length of the back surface finger electrode.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Inventors: Shigeharu TAIRA, Shinji KOBAYASHI, Yuzuru MIYATA
  • Patent number: 10411551
    Abstract: In an AC generator, a protective cover includes a locking claw provided so as to extend outward in an axial direction from an open-side end surface of a peripheral wall portion. The locking claw includes an axial portion and a claw portion provided so as to project radially from an end portion of the axial portion. The locking claw is configured to be locked to a casing. The protective cover also includes a locking-claw restricting portion formed on an outer peripheral edge portion of a bottom portion.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 10, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuzuru Kobayashi, Kazunori Tanaka
  • Publication number: 20190273411
    Abstract: A protective cover for a rotary electric machine including: a bottom portion formed into an approximately circular shape; a side wall extending from the bottom portion along an outer periphery thereof; and an opening portion, of approximately circular shape and formed by an end of the side wall, wherein the side wall has a plurality of guide ribs formed on an inner side thereof and arranged apart from each other along the outer periphery of the bottom portion, wherein each of the guide ribs has a chamfered portion at an end on a side closer to the opening portion, and wherein each of the guide ribs has a height of a top portion of each of the plurality of guide ribs from the side wall allows the top portion to contact a side surface of the component when the protective cover is mounted to the rotary electric machine.
    Type: Application
    Filed: November 16, 2016
    Publication date: September 5, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuzuru KOBAYASHI
  • Patent number: 10374493
    Abstract: A configuration of a rectifying device configuring a vehicle-use rotating electric machine is such that when a lead drawn out from a stator winding is inserted into a through hole of a rear bracket forming a casing, a periphery of the lead is enclosed, and the through hole sealed, by a tubular member extended from a main body portion of a terminal block, and the through hole not blocked by the tubular member is sealed by a stopper portion extended in the same way from a main body portion of the terminal block. Even when the number of leads drawn out is reduced, standardization of the rear bracket is carried out by the through hole (3a) of the rear bracket being sealed by the stopper portion.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 6, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuzuru Kobayashi, Masao Akiyoshi, Kazunori Tanaka
  • Patent number: 10263531
    Abstract: A heat dissipation heat sink having a press-fit hole whose inner peripheral surface is a cast skin surface is included; the heat dissipation heat sink is sandwiched by the press-fit head and the insertion guide by aligning the axis of a rectifying element in an insertion guide with the axis of the press-fit hole and making the press-fit head face the heat dissipation heat sink; a protrusion portion of a load receiving jig is made to face the rectifying element in the insertion guide; and the rectifying element is press-fitted into the press-fit hole of the heat dissipation heat sink by pressing the periphery of the press-fit hole of the heat dissipation heat sink (22,23) by the press-fit head and receiving a load applied to the rectifying element by the protrusion portion of the load receiving jig.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadashi Yokoyama, Atsuya Iwamoto, Seisaku Imagawa, Toshiyuki Oonishi, Yuzuru Kobayashi
  • Patent number: 10199908
    Abstract: In this rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion such that first rectifying element connecting portions are disposed in a loosely fitted state inside a second penetrating aperture that is formed on the second rectifying element holding portion, and second rectifying element connecting portions are disposed in a loosely fitted state inside a first penetrating aperture that is formed on the first rectifying element holding portion; first leading electrodes of a plurality of first rectifying elements respectively extend axially and are connected to each of the first rectifying element connecting portions; and second leading electrodes of a plurality of second rectifying elements respectively extend axially and are connected to each of the second rectifying element connecting portions.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 5, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masao Akiyoshi, Yuzuru Kobayashi, Kyoko Higashino
  • Publication number: 20190036460
    Abstract: A heat dissipation heat sink having a press-fit hole whose inner peripheral surface is a cast skin surface is included; the heat dissipation heat sink is sandwiched by the press-fit head and the insertion guide by aligning the axis of a rectifying element in an insertion guide with the axis of the press-fit hole and making the press-fit head face the heat dissipation heat sink; a protrusion portion of a load receiving jig is made to face the rectifying element in the insertion guide; and the rectifying element is press-fitted into the press-fit hole of the heat dissipation heat sink by pressing the periphery of the press-fit hole of the heat dissipation heat sink (22,23) by the press-fit head and receiving a load applied to the rectifying element by the protrusion portion of the load receiving jig.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadashi YOKOYAMA, Atsuya IWAMOTO, Seisaku IMAGAWA, Toshiyuki OONISHI, Yuzuru KOBAYASHI
  • Publication number: 20190020243
    Abstract: Radial direction outer side sizes of a first rectifying unit, a circuit board, and a second rectifying unit configuring a rectifying device are disposed so as to be sequentially smaller in a direction away from a frame of a rotating electrical machine main body, and at predetermined intervals, a cover covering the rectifying device has a cover end wall portion, a cover outer wall portion, and a cover intermediate portion, an inner peripheral side inlet portion is formed in the cover end wall portion, an outer peripheral side inlet portion is formed in the cover intermediate portion, and the outer peripheral side inlet portion is formed of an axial direction covering portion, and a radial direction covering portion that connects the axial direction covering portion and an outer peripheral portion of the cover end wall portion.
    Type: Application
    Filed: April 7, 2016
    Publication date: January 17, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI
  • Publication number: 20180269750
    Abstract: This invention is concerning a rectifying device in an AC power generator, the rectifying device including a broken-ring-shaped heat sink supporting a rectifying element and cooling the rectifying element and a circuit board holding the heat sink. The circuit board includes an engaging projection. The heat sink includes a hole, into which the engaging projection is fit, and a gravity center adjustment portion.
    Type: Application
    Filed: November 10, 2015
    Publication date: September 20, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuzuru KOBAYASHI
  • Patent number: 10069432
    Abstract: A heat dissipation heat sink having a press-fit hole whose inner peripheral surface is a cast skin surface is included; the heat dissipation heat sink is sandwiched by the press-fit head and the insertion guide by aligning the axis of a rectifying element in an insertion guide with the axis of the press-fit hole and making the press-fit head face the heat dissipation heat sink; a protrusion portion of a load receiving jig is made to face the rectifying element in the insertion guide; and the rectifying element is press-fitted into the press-fit hole of the heat dissipation heat sink by pressing the periphery of the press-fit hole of the heat dissipation heat sink (22,23) by the press-fit head and receiving a load applied to the rectifying element by the protrusion portion of the load receiving jig.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: September 4, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadashi Yokoyama, Atsuya Iwamoto, Seisaku Imagawa, Toshiyuki Oonishi, Yuzuru Kobayashi
  • Publication number: 20180115214
    Abstract: A cover covering a rectifying device includes a cover end wall portion, a cover outer wall portion, and a cover intermediate portion interposed between the cover end wall portion and the cover outer wall portion. The cover end wall portion includes an inner peripheral side intake portion, and the cover intermediate portion includes an outer peripheral side intake portion. The outer peripheral side intake portion includes an axial direction covering portion existing in a position that is closer to a rotary electric machine main body than the cover end wall portion in an axial direction, and a radial direction covering portion that connects the axial direction covering portion to an outer peripheral portion of the cover end wall portion. Intake holes are provided respectively in the inner peripheral side intake portion, the axial direction covering portion, and the radial direction covering portion.
    Type: Application
    Filed: April 28, 2015
    Publication date: April 26, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI, Kentaro HONSHO
  • Publication number: 20180083512
    Abstract: A first tubular portion and a second tubular portion extended from a main body portion of a terminal block configuring a rectifying device are inserted into a casing through hole of a rear bracket configuring a casing of a vehicle-use alternating current generator, and the rectifying device is attached to a main body portion side. The first tubular portion including a sealing portion that seals the casing through hole is inserted into the casing through hole into which a lead is not inserted, and the second tubular portion of a form enclosing the lead is inserted into the casing through hole into which the lead is inserted.
    Type: Application
    Filed: August 6, 2015
    Publication date: March 22, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuzuru KOBAYASHI
  • Publication number: 20170324306
    Abstract: In this rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion such that first rectifying element connecting portions are disposed in a loosely fitted state inside a second penetrating aperture that is formed on the second rectifying element holding portion, and second rectifying element connecting portions are disposed in a loosely fitted state inside a first penetrating aperture that is formed on the first rectifying element holding portion; first leading electrodes of a plurality of first rectifying elements respectively extend axially and are connected to each of the first rectifying element connecting portions; and second leading electrodes of a plurality of second rectifying elements respectively extend axially and are connected to each of the second rectifying element connecting portions.
    Type: Application
    Filed: November 21, 2014
    Publication date: November 9, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI, Kyoko HIGASHINO
  • Publication number: 20170302136
    Abstract: A circuit board has first rectifying element connecting portions and second rectifying element connecting portions, and is disposed between a first rectifying element holding portion and a second rectifying element holding portion, a plurality of first rectifying elements are each held by the first rectifying element holding portion, and are connected to the first rectifying element connecting portions by extending a first leading electrode axially, a plurality of second rectifying elements are each held by the second rectifying element holding portion, and are connected to the second rectifying element connecting portion by extending a second leading electrode axially, and a radial ventilation channel that passes through the rectifying apparatus in a radial direction is configured by disposing the circuit board so as to be spaced apart from at least one of the first rectifying element holding portion and the second rectifying element holding portion in an axial direction.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 19, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI
  • Publication number: 20170294823
    Abstract: In the present rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion, and is configured such that only a housing linking portion, a stator winding connecting portion, and a voltage regulator connecting portion protrude from the first rectifying element holding portion and the second rectifying element holding portion when viewed from an axial direction, a plurality of first radially inner fins are formed on a radially inner side of the first rectifying element holding portion, and a plurality of second radially outer fins are formed on a radially outer side of the second rectifying element holding portion.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 12, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masao AKIYOSHI, Yuzuru KOBAYASHI
  • Patent number: D795807
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: August 29, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Shinosaka, Masao Akiyoshi, Shinichiro Minami, Yuzuru Kobayashi
  • Patent number: D820785
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 19, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Shinosaka, Masao Akiyoshi, Shinichiro Minami, Yuzuru Kobayashi, Kentaro Honsho
  • Patent number: D823252
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Shinosaka, Masao Akiyoshi, Shinichiro Minami, Yuzuru Kobayashi, Kentaro Honsho