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).
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Patent number: 11469653Abstract: 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: GrantFiled: September 10, 2020Date of Patent: October 11, 2022Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato, Masashi Matsumoto
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Patent number: 11374474Abstract: 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: GrantFiled: September 10, 2020Date of Patent: June 28, 2022Inventors: Kenji Katsuki, Takashi Fukumoto, Yasutaka Oba, Go Kato
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Patent number: 11194346Abstract: 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: GrantFiled: May 29, 2019Date of Patent: December 7, 2021Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Kenji Katsuki
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Publication number: 20200412213Abstract: 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: ApplicationFiled: September 10, 2020Publication date: December 31, 2020Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO
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Publication number: 20200412212Abstract: 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: ApplicationFiled: September 10, 2020Publication date: December 31, 2020Inventors: Kenji KATSUKI, Takashi FUKUMOTO, Yasutaka OBA, Go KATO, Masashi MATSUMOTO
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Patent number: 10848039Abstract: 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: GrantFiled: September 4, 2017Date of Patent: November 24, 2020Inventors: Akira Nagai, Kenji Katsuki, Go Kato
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Patent number: 10622873Abstract: 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: GrantFiled: July 8, 2015Date of Patent: April 14, 2020Assignees: MITSUI HIGH-TEC, INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
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Publication number: 20190278300Abstract: 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: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Kenji KATSUKI
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Publication number: 20180076700Abstract: 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: ApplicationFiled: September 4, 2017Publication date: March 15, 2018Applicant: Mitsui High-tec, Inc.Inventors: Akira NAGAI, Kenji KATSUKI, Go KATO
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Patent number: 9397544Abstract: 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: GrantFiled: June 22, 2012Date of Patent: July 19, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yasushi Fujishima, Rie Aizawa, Jun Ito, Fusao Saito, Kenji Katsuki, Ryoichi Sugawara, Tetu Suzuki
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Publication number: 20160013709Abstract: 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: ApplicationFiled: July 8, 2015Publication date: January 14, 2016Applicants: Mitsui High-tec, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
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Publication number: 20140091746Abstract: 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: ApplicationFiled: June 22, 2012Publication date: April 3, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yasushi Fujishima, Rie Aizawa, Jun Ito, Fusao Saito, Kenji Katsuki, Ryoichi Sugawara, Tetu Suzuki
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Patent number: 7267012Abstract: 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: GrantFiled: February 15, 2006Date of Patent: September 11, 2007Assignees: Japan Atomic Energy Agency, Kabushiki Kaisha ToshibaInventors: Kuniaki Ara, Mamoru Konomura, Yoshitaka Chikazawa, Kousuke Aizawa, Rie Aizawa, Junzo Taguchi, Kenji Katsuki, Noriyuki Takeshima, Takeshi Shimizu
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Publication number: 20070034015Abstract: 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: ApplicationFiled: February 15, 2006Publication date: February 15, 2007Inventors: Kuniaki Ara, Mamoru Konomura, Yoshitaka Chikazawa, Kousuke Aizawa, Rie Aizawa, Junzo Taguchi, Kenji Katsuki, Noriyuki Takeshima, Takeshi Shimizu
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Patent number: 5805972Abstract: 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: GrantFiled: February 28, 1997Date of Patent: September 8, 1998Assignees: Japan Atomic Energy Research Institute, Kabushiki Kaisha ToshibaInventors: Goro Miyamoto, Yoshio Murakami, Seiji Hiroki, Kenji Katsuki
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Patent number: 5653854Abstract: 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: GrantFiled: February 27, 1996Date of Patent: August 5, 1997Assignees: Japan Atomic Energy Research Institute, Kabushiki Kaisha ToshibaInventors: Goro Miyamoto, Yoshio Murakami, Seiji Hiroki, Kenji Katsuki
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Patent number: D475726Type: GrantFiled: August 2, 2002Date of Patent: June 10, 2003Assignee: Denyo Co., Ltd.Inventors: Koji Suga, Sanpei Sato, Kenji Katsuki, Toshiaki Tanaka, Shoichi Fujimoto