Patents by Inventor Yuzo Kato

Yuzo Kato 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: 10819184
    Abstract: An electric actuator attached to a vehicle is provided and includes: a motor unit, a speed reducer, a circuit board, an output section, and a housing that accommodates the motor unit, the speed reducer, the circuit board and the output section. The housing has a motor case that opens at one side in an axial direction, and a circuit board case attached to one side of the motor case in the axial direction to close an opening of the motor case and accommodates the circuit board. The motor case has a motor case main body that accommodates the motor unit, and multiple attaching leg sections protruding from the motor case main body and fixed to the vehicle. The attaching leg sections protrude outward from the circuit board case when seen in the axial direction.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 27, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yutaka Uematsu, Shun Kato, Ryunosuke Oikawa, Yuzo Akasaka, Kazumi Shinkai
  • Patent number: 10715003
    Abstract: An electric actuator includes: a motor unit; a speed reducer; a circuit board; a busbar; and a housing. The housing has a motor case and a circuit board case attached to one side of the motor case in an axial direction. The circuit board case has a bottom wall blocking an opening of the motor case. The bottom wall has a bottom wall through-hole that penetrates through the bottom wall in the axial direction on an outer side beyond the speed reducer in the radial direction. A busbar has a busbar main body section, a coil line connecting section to which a coil line extending on one side in the axial direction from a coil is connected, and a connection terminal section. The connection terminal section extends to one side of the bottom wall in the axial direction via the bottom wall through-hole and is connected to the circuit board.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 14, 2020
    Assignee: NIDEC TOSOK CORPORATION
    Inventors: Yutaka Uematsu, Shun Kato, Ryunosuke Oikawa, Yuzo Akasaka, Kazumi Shinkai
  • 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: 20190335273
    Abstract: A correlation function having a clear peak is generated even in an environment in which an ambient noise level is high. A correlation function generation apparatus (100) includes a plurality of input signal obtaining units (101), a changing unit (102), a cross-spectrum calculator (103), a variance calculator (104), and a correlation function calculator (105). The input signal obtaining unit (101) obtains a wave generated by a wave source as an input signal. The transformer (102) obtains a plurality of frequency domain signals by transforming a plurality of input signals obtained by the plurality of input signal obtaining units. The cross-spectrum calculator (103) calculates a cross-spectrum based on the plurality of frequency domain signals. The variance calculator (104) calculates the variance of the cross-spectrum. The correlation function calculator (105) calculates and generates a correlation function based on the cross-spectrum and the variance.
    Type: Application
    Filed: January 11, 2017
    Publication date: October 31, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Publication number: 20190250240
    Abstract: The present invention generates a correlation function having a clear peak even in an environment with a high ambient noise level. This correlation function generation device is provided with a plurality of input signal acquisition units for acquiring waves generated by a wave source as input signals, a conversion unit for converting the plurality of input signals acquired by the input signal acquisition units into a plurality of frequency-domain signals, a cross-spectrum calculation unit for calculating a cross spectrum on the basis of the frequency domain signals, frequency-specific cross-spectrum calculation units for calculating cross spectrums for each frequency on the basis of the cross spectrum, and an integrated correlation function calculation unit for calculating an integrated correlation function on the basis of the frequency-specific cross spectrums.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 15, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Publication number: 20190207462
    Abstract: An electric actuator includes: a motor unit; a speed reducer; a circuit board; a busbar; and a housing. The housing has a motor case and a circuit board case attached to one side of the motor case in an axial direction. The circuit board case has a bottom wall blocking an opening of the motor case. The bottom wall has a bottom wall through-hole that penetrates through the bottom wall in the axial direction on an outer side beyond the speed reducer in the radial direction. A busbar has a busbar main body section, a coil line connecting section to which a coil line extending on one side in the axial direction from a coil is connected, and a connection terminal section. The connection terminal section extends to one side of the bottom wall in the axial direction via the bottom wall through-hole and is connected to the circuit board.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207472
    Abstract: An electric actuator includes: a motor unit that has a motor shaft and a rotor main body; a speed reducer; a circuit board; an output section; a detection target section; a motor unit sensor; a preload member; and a support section. The motor shaft passes through a through-hole and penetrates through the circuit board in an axial direction. The detection target section is attached to a portion, which protrudes to one side in the axial direction beyond the circuit board, of the motor shaft. The detection target section faces a surface of the circuit board via a gap. The motor unit sensor is fixed to a portion, which faces the detection target section via a gap, of a surface of the circuit board. The preload member applies a preload to the motor shaft toward the other side in the axial direction and presses the motor shaft against the support section.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207474
    Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing configured to accommodate the motor unit, the speed reducer and the output section. The output shaft extends in the axial direction of the motor shaft. The housing has a housing main body with a polygonal shape when seen in the axial direction. The motor shaft and the output shaft are disposed to be arranged along a diagonal line of the housing main body when seen in the axial direction. The output shaft is disposed on a corner portion of the housing main body when seen in the axial direction.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207473
    Abstract: An electric actuator includes: a motor part, having a motor shaft that extends in an axial direction and is rotated in both directions; a deceleration mechanism, connected to the motor shaft; a circuit board, electrically connected to the motor part; an output part, having an output shaft to which rotation of the motor shaft is transmitted through the deceleration mechanism; a sensor magnet, attached to the motor shaft; and a motor part sensor, detecting a magnetic field of the sensor magnet and detecting rotation of the motor shaft. The motor part has a rotor magnet that is fixed to the motor shaft. The rotor magnet and the sensor magnet each have multiple magnetic poles in a circumferential direction around the motor shaft. The magnetic poles of the rotor magnet and the magnetic poles of the sensor magnet are disposed to be shifted from each other in the circumferential direction.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Shun KATO, Yutaka UEMATSU, Tadayuki HATSUDA, Yuzo AKASAKA
  • Publication number: 20190207475
    Abstract: An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing accommodating the motor unit, the speed reducer and the output section. The motor shaft and the output shaft are disposed apart from each other in the radial direction of the motor shaft. The motor unit has a first bearing that rotatably supports the motor shaft. The housing has a housing main body formed of resin, and a metal member formed of metal and held by the housing main body. The metal member has a bearing holding section that holds the first bearing, and an output shaft support section that supports the output shaft.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207471
    Abstract: An electric actuator attached to a vehicle is provided and includes: a motor unit, a speed reducer, a circuit board, an output section, and a housing that accommodates the motor unit, the speed reducer, the circuit board and the output section. The housing has a motor case that opens at one side in an axial direction, and a circuit board case attached to one side of the motor case in the axial direction to close an opening of the motor case and accommodates the circuit board. The motor case has a motor case main body that accommodates the motor unit, and multiple attaching leg sections protruding from the motor case main body and fixed to the vehicle. The attaching leg sections protrude outward from the circuit board case when seen in the axial direction.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190207470
    Abstract: An electric actuator for rotating a driven shaft is provided, and includes: a motor unit, a speed reducer, a circuit board and an output section. A motor shaft of the motor unit and an output shaft of the output section are disposed apart from each other in a radial direction of the motor shaft. A rotor main body of the motor unit is fixed to a portion on the other side of the motor shaft in the axial direction. The output shaft has a cylindrical shape extending in the axial direction of the motor shaft and having an opening section on the other side in the axial direction. The driven shaft is inserted and connected to the output shaft via the opening section from the other side in the axial direction. The output shaft is disposed at a position overlapping the rotor main body in the radial direction.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: NIDEC TOSOK CORPORATION
    Inventors: Yutaka UEMATSU, Shun KATO, Ryunosuke OIKAWA, Yuzo AKASAKA, Kazumi SHINKAI
  • Publication number: 20190146054
    Abstract: This wave source direction estimation apparatus is capable of highly accurately estimating the direction of a wave source even in an environment with a high surrounding noise level, and is provided with: a plurality of input signal acquisition means for acquiring signals generated at a wave source as input signals; a correlation function calculation means for calculating correlation functions on the basis of the input signals acquired by the input signal acquisition means; an envelope function extraction means for extracting envelope functions on the basis of the calculated correlation functions; a combined envelope function calculation means for calculating a combined envelope function by combining the extracted envelope functions; and an estimated direction information generation means for generating estimated direction information about the wave source on the basis of the calculated combined envelope function.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 16, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Patent number: 10121999
    Abstract: A degassing hole is formed in a casing in which a storage element is housed. Prior to forming the degassing hole, the casing is clamped in a region between the outer peripheral edge of the casing and the storage element where the degassing hole is to be formed such that overlapped films of the casing are pressed tightly together. By displacing the acting position of the clamping force toward the storage element while reducing the clamping force gradually toward the storage element prevent, liquid spill in a degassing process is prevented.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: November 6, 2018
    Assignees: Nissan Motor Co., Ltd., Automotive Energy Supply Corporation
    Inventors: Yuzo Kato, Nobuaki Akutsu
  • Publication number: 20180208730
    Abstract: According to the present invention, there is provided a coated film that is excellent in not only antistatic properties, but also persistency of the antistatic properties. The present invention relates to a coated film comprising a polyester film and a coating layer formed on at least one surface of the polyester film which is prepared from a coating solution comprising a polystyrenesulfonic acid or a derivative thereof, and a binder resin or a crosslinking agent.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuzo KATO, Yoichi KAWASAKI, Taishi KAWASAKI
  • Patent number: 10030150
    Abstract: A fine magnesium oxide particle dispersion liquid containing an aprotic solvent, and fine magnesium oxide particles that are dispersed in the aprotic solvent, wherein the dispersion liquid has D50 of 200 nm or less in a particle size distribution as measured by a dynamic light scattering method, and has a content rate of coarse particles having an average particle diameter of 500 nm or more of less than 1%, and a method for producing the fine magnesium oxide particle dispersion liquid.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 24, 2018
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Seiji Noguchi, Yuzo Kato, Masayuki Fujimoto
  • Patent number: 9938443
    Abstract: A magnesium oxide material includes a magnesium oxide powder treated with a halogen compound and a silane coupling agent. A method of producing a magnesium oxide material includes a step including preparing a magnesium oxide powder, a halogen compound treatment step including subjecting the magnesium oxide powder to a surface treatment with a halogen compound, and a silane coupling agent treatment step including subjecting the magnesium oxide powder to a surface treatment with a silane coupling agent.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 10, 2018
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Masayuki Fujimoto, Yuzo Kato, Seiji Noguchi
  • Publication number: 20170096562
    Abstract: A fine magnesium oxide particle dispersion liquid containing an aprotic solvent, and fine magnesium oxide particles that are dispersed in the aprotic solvent, wherein the dispersion liquid has D50 of 200 nm or less in a particle size distribution as measured by a dynamic light scattering method, and has a content rate of coarse particles having an average particle diameter of 500 nm or more of less than 1%, and a method for producing the fine magnesium oxide particle dispersion liquid.
    Type: Application
    Filed: March 23, 2015
    Publication date: April 6, 2017
    Applicant: Ube Materials Industries, Ltd.
    Inventors: Seiji Noguchi, Yuzo Kato, Masayuki Fujimoto
  • Publication number: 20170044417
    Abstract: A magnesium oxide material includes a magnesium oxide powder treated with a halogen compound and a silane coupling agent. A method of producing a magnesium oxide material includes a step including preparing a magnesium oxide powder, a halogen compound treatment step including subjecting the magnesium oxide powder to a surface treatment with a halogen compound, and a silane coupling agent treatment step including subjecting the magnesium oxide powder to a surface treatment with a silane coupling agent.
    Type: Application
    Filed: February 12, 2015
    Publication date: February 16, 2017
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Masayuki Fujimoto, Yuzo Kato, Seiji Noguchi
  • Publication number: 20160308181
    Abstract: A degassing hole is formed in a casing in which a storage element is housed. Prior to forming the degassing hole, the casing is clamped in a region between the outer peripheral edge of the casing and the storage element where the degassing hole is to be formed such that overlapped films of the casing are pressed tightly together. By displacing the acting position of the clamping force toward the storage element while reducing the clamping force gradually toward the storage element prevent, liquid spill in a degassing process is prevented.
    Type: Application
    Filed: December 3, 2014
    Publication date: October 20, 2016
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Yuzo Kato, Nobuaki Akutsu