Patents by Inventor Kenji Katsuki

Kenji Katsuki 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: 11469653
    Abstract: A method of manufacturing a rotating body includes disposing an end plate on an end surface of the core body in a height direction, and forming the rotating body by welding the end plate and the core body together. The rotating body is formed by welding the end plate and the core body together while a temperature of the core body and the end plate is within a predetermined operational a temperature range associated with rotation of the rotating body in a manufactured state of operation.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 11, 2022
    Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato, Masashi Matsumoto
  • Patent number: 11374474
    Abstract: A method of manufacturing a core product includes injecting molten resin into a resin injection portion provided in a core body so as to extend in a longitudinal direction of the core body, and forming a core product by welding the core body. A buffer region is set between the resin injection portion and a periphery of the core body in a lateral direction of the core body. The core product is formed by welding the core body so that a weld bead formed on the core body is prohibited from reaching the buffer region, and so that the weld bead is spaced apart from the resin injection portion in the lateral direction of the core body.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: June 28, 2022
    Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato
  • Patent number: 11194346
    Abstract: An angular speed acquisition device acquires the angular speed about a road surface perpendicular axis of a leaning vehicle. The leaning vehicle includes a vehicle body frame capable of leaning in a vehicle left-right direction and a steering shaft which steers at least one of a front wheel unit and a rear wheel unit. An angular speed acquisition device, which is mountable on the leaning vehicle, includes a memory and a processor. The memory stores the relationship between the steering angle, which is a rotation angle about the rotational axis of the steering shaft, the vehicle speed of the leaning vehicle, and the angular speed ? about the road surface perpendicular axis.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 7, 2021
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kenji Katsuki
  • Publication number: 20200412213
    Abstract: A method of manufacturing a core product includes injecting molten resin into a resin injection portion provided in a core body so as to extend in a longitudinal direction of the core body, and forming a core product by welding the core body. A buffer region is set between the resin injection portion and a periphery of the core body in a lateral direction of the core body. The core product is formed by welding the core body so that a weld bead formed on the core body is prohibited from reaching the buffer region, and so that the weld bead is spaced apart from the resin injection portion in the lateral direction of the core body.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO
  • Publication number: 20200412212
    Abstract: A method of manufacturing a rotating body includes disposing an end plate on an end surface of the core body in a height direction, and forming the rotating body by welding the end plate and the core body together. The rotating body is formed by welding the end plate and the core body together while a temperature of the core body and the end plate is within a predetermined operational a temperature range associated with rotation of the rotating body in a manufactured state of operation.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO, Masashi MATSUMOTO
  • Patent number: 10848039
    Abstract: A method of manufacturing a rotor core having a plurality of core members stacked together includes determining weight imbalances for the plurality of core members with respect to a central axis of the rotor core; combining the weight imbalances of the plurality of core members to determine a weight distribution of the rotor core; and displacing the weight imbalances of one or more of the plurality of core members to adjust a position of the weight distribution of the rotor core with respect to the central axis.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: November 24, 2020
    Inventors: Akira Nagai, Kenji Katsuki, Go Kato
  • Patent number: 10622873
    Abstract: In the case of a laminated rotor core 10, insertion of permanent magnets 14 and filling of resin 15 into each of magnet insertion holes 13 are performed in order to cancel out a problem of an imbalanced weight estimated from a deviation of lamination thickness in a circumferential direction of a laminated core body 12, and a manufacturing method includes a step of measuring a deviation of lamination thickness in which an imbalanced weight is estimated by measuring the deviation of lamination thickness in the circumferential direction of the laminated core body 12, and a step of balance adjustment in which the insertion of the permanent magnets 14 into each of the magnet insertion holes 13 and the filling of resin 15 into each of the magnet insertion holes 13 are performed in a manner that cancels out a problem of this imbalanced weight.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 14, 2020
    Assignees: MITSUI HIGH-TEC, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
  • Publication number: 20190278300
    Abstract: An angular speed acquisition device acquires the angular speed about a road surface perpendicular axis of a leaning vehicle. The leaning vehicle includes a vehicle body frame capable of leaning in a vehicle left-right direction and a steering shaft which steers at least one of a front wheel unit and a rear wheel unit. An angular speed acquisition device, which is mountable on the leaning vehicle, includes a memory and a processor. The memory stores the relationship between the steering angle, which is a rotation angle about the rotational axis of the steering shaft, the vehicle speed of the leaning vehicle, and the angular speed ? about the road surface perpendicular axis.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kenji KATSUKI
  • Publication number: 20180076700
    Abstract: A method of manufacturing a rotor core having a plurality of core members stacked together includes determining weight imbalances for the plurality of core members with respect to a central axis of the rotor core; combining the weight imbalances of the plurality of core members to determine a weight distribution of the rotor core; and displacing the weight imbalances of one or more of the plurality of core members to adjust a position of the weight distribution of the rotor core with respect to the central axis.
    Type: Application
    Filed: September 4, 2017
    Publication date: March 15, 2018
    Applicant: Mitsui High-tec, Inc.
    Inventors: Akira NAGAI, Kenji KATSUKI, Go KATO
  • Patent number: 9397544
    Abstract: Provided, in parallel to an electromagnetic pump in a power supply system, is an electromagnetic pump compensation power supply mechanism (10) that will perform a power-factor improving function as a synchronous machine during normal operation of a plant. The electromagnetic pump compensation power supply mechanism (10) is provided with an exciter stator permanent magnetic apparatus (45) that can switch an exciter between a non-excited state and an excited state. The exciter stator permanent magnet apparatus (45) comprises exciter stator permanent magnets (15a), springs (16) that apply force to the exciter stator permanent magnets (15a) towards positions facing an exciter rotor winding (15b), and electromagnetic solenoids (20) that make the exciter stator permanent magnets (15a) move to positions not facing the exciter rotor winding (15b) in resistance to the force applied by the springs (16).
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: July 19, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasushi Fujishima, Rie Aizawa, Jun Ito, Fusao Saito, Kenji Katsuki, Ryoichi Sugawara, Tetu Suzuki
  • Publication number: 20160013709
    Abstract: In the case of a laminated rotor core 10, insertion of permanent magnets 14 and filling of resin 15 into each of magnet insertion holes 13 are performed in order to cancel out a problem of an imbalanced weight estimated from a deviation of lamination thickness in a circumferential direction of a laminated core body 12, and a manufacturing method includes a step of measuring a deviation of lamination thickness in which an imbalanced weight is estimated by measuring the deviation of lamination thickness in the circumferential direction of the laminated core body 12, and a step of balance adjustment in which the insertion of the permanent magnets 14 into each of the magnet insertion holes 13 and the filling of resin 15 into each of the magnet insertion holes 13 are performed in a manner that cancels out a problem of this imbalanced weight.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Applicants: Mitsui High-tec, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
  • Publication number: 20140091746
    Abstract: Provided, in parallel to an electromagnetic pump in a power supply system, is an electromagnetic pump compensation power supply mechanism (10) that will perform a power-factor improving function as a synchronous machine during normal operation of a plant. The electromagnetic pump compensation power supply mechanism (10) is provided with an exciter stator permanent magnetic apparatus (45) that can switch an exciter between a non-excited state and an excited state. The exciter stator permanent magnet apparatus (45) comprises exciter stator permanent magnets (15a), springs (16) that apply force to the exciter stator permanent magnets (15a) towards positions facing an exciter rotor winding (15b), and electromagnetic solenoids (20) that make the exciter stator permanent magnets (15a) move to positions not facing the exciter rotor winding (15b) in resistance to the force applied by the springs (16).
    Type: Application
    Filed: June 22, 2012
    Publication date: April 3, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasushi Fujishima, Rie Aizawa, Jun Ito, Fusao Saito, Kenji Katsuki, Ryoichi Sugawara, Tetu Suzuki
  • Patent number: 7267012
    Abstract: An electromagnetic flowmeter designed to use a smaller excitation device and applicable to measurement on tubular channels of various sectional shapes. The electromagnetic flowmeter includes an excitation device for forming a magnetic field perpendicular to an outer wall of a tubular channel, and a pair of electrodes for measuring an electromotive force generated by the movement of the electroconductive fluid across the magnetic field. The electrodes and two magnetic poles of the excitation device are collectively placed on the outer wall at one side of the tubular channel.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: September 11, 2007
    Assignees: Japan Atomic Energy Agency, Kabushiki Kaisha Toshiba
    Inventors: Kuniaki Ara, Mamoru Konomura, Yoshitaka Chikazawa, Kousuke Aizawa, Rie Aizawa, Junzo Taguchi, Kenji Katsuki, Noriyuki Takeshima, Takeshi Shimizu
  • Publication number: 20070034015
    Abstract: An object of the present invention is to provide an electromagnetic flowmeter designed to use a smaller excitation device and applicable to measurement on tubular channels of various sectional shapes. The electromagnetic flowmeter 10 includes an excitation device 11 for forming a magnetic field perpendicular to an outer wall 11b of a tubular channel 1, and a pair of electrodes 2a and 2b for measuring an electromotive force generated by the movement of the electroconductive fluid across the magnetic field. The electrodes 2a and 2b and two magnetic poles of the excitation device 11 are collectively placed on the outer wall 1b at one side of the tubular channel 1.
    Type: Application
    Filed: February 15, 2006
    Publication date: February 15, 2007
    Inventors: Kuniaki Ara, Mamoru Konomura, Yoshitaka Chikazawa, Kousuke Aizawa, Rie Aizawa, Junzo Taguchi, Kenji Katsuki, Noriyuki Takeshima, Takeshi Shimizu
  • Patent number: 5805972
    Abstract: The improved isotope separator comprises a vacuum vessel, a plasma generator located substantially in the center of the vacuum vessel, an electrode bounded by a hyperboloid of one sheet and a pair of electrodes bounded by a hyperboloid of two sheets, said electrodes being located within the vacuum vessel in such a way as to surround the plasma generator, a power source for supplying said electrodes with a fixed voltage and a pulsating voltage, and magnetic field generating means located outside the vacuum vessel. The apparatus is implemented by a method for isotope separation that achieves high separation factor per stage (process), that enables the process throughput to be increased with ease and which yet is applicable to the isotopic separation of many elements.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 8, 1998
    Assignees: Japan Atomic Energy Research Institute, Kabushiki Kaisha Toshiba
    Inventors: Goro Miyamoto, Yoshio Murakami, Seiji Hiroki, Kenji Katsuki
  • Patent number: 5653854
    Abstract: The improved isotope separator comprises a vacuum vessel, a plasma generator located substantially in the center of the vacuum vessel, an electrode bounded by a hyperboloid of one sheet and a pair of electrodes bounded by a hyperboloid of two sheets, said electrodes being located within the vacuum vessel in such a way as to surround the plasma generator, a power source for supplying said electrodes with a fixed voltage and a pulsating voltage, and magnetic field generating means located outside the vacuum vessel. The apparatus is implemented by a method for isotope separation that achieves high separation factor per stage (process), that enables the process throughput to be increased with ease and which yet is applicable to the isotopic separation of many elements.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: August 5, 1997
    Assignees: Japan Atomic Energy Research Institute, Kabushiki Kaisha Toshiba
    Inventors: Goro Miyamoto, Yoshio Murakami, Seiji Hiroki, Kenji Katsuki
  • Patent number: D475726
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: June 10, 2003
    Assignee: Denyo Co., Ltd.
    Inventors: Koji Suga, Sanpei Sato, Kenji Katsuki, Toshiaki Tanaka, Shoichi Fujimoto