Patents by Inventor Fuminori Kato

Fuminori 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: 11937410
    Abstract: A package-type fluid machine includes a compressor unit including a compression portion that compresses a fluid, a motor that drives the compression portion, and a cooling fan that is driven by the motor; a machine chamber in which the compressor unit is disposed; an inverter chamber which is adjacent to the machine chamber and in which an inverter is disposed; a partition wall that partitions off the machine chamber from the inverter chamber and has an opening; and an inverter intake port that is disposed in the inverter chamber to take in a cooling gas. The cooling fan is disposed on a side of the machine chamber, the opening being located on the side. The cooling fan is driven to cause the cooling gas to flow from the inverter intake port to the opening to cool the inverter.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 19, 2024
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto, Hiroaki Saito, Daichi Oka, Akihiro Yamamoto
  • Patent number: 11821428
    Abstract: Provided is a motor-integrated fluid machine that has improved performance and reliability by efficiently cooling a fluid machine body and a motor without increasing an installation space. The present invention is characterized by being provided with: a fluid machine unit that compresses or expands a fluid; a motor unit that has a drive shaft connected to the fluid machine unit; and a cooling fan that cools the motor unit and the fluid machine unit by sucking cooling air from the motor unit side and that is connected to the drive shaft at the side opposed to that connected to the fluid machine unit, wherein between the motor unit and the cooling fan, the minimum sectional area of a cooling air passage from the outside in the radial direction toward the drive shaft is larger than that of a cooling air passage from the motor unit side toward the cooling fan.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 21, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shumpei Yamazaki, Yoshiyuki Kanemoto, Fuminori Kato
  • Patent number: 11795943
    Abstract: A scroll-type fluid machine includes a motor unit and a main body. The motor unit includes a rotor, a stator, a shaft provided with an eccentric portion at a distal end of the shaft and configured to rotate integrally with the rotor, a main bearing configured to support the shaft, and a motor cover configured to house the rotor and the stator. The main bearing is fixed to an inside of the motor cover by a fixing flange. The main bearing supports the shaft and is located between the fixing flange and an end bracket on an opposite side of the main body unit with respect to the fixing flange.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: October 24, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Shumpei Yamazaki, Yoshiyuki Kanemoto, Takanori Emi
  • Patent number: 11772633
    Abstract: A vehicle control method is applied to a vehicle 1 in which a front wheel 2 is driven by an engine 4, and the method includes a basic torque setting step of setting basic torque to be generated by the engine 4, based on an operational state of the vehicle 1; an acceleration torque setting step of setting acceleration torque, based on a reduction in steering angle of a steering apparatus 5 mounted on the vehicle 1; a torque generation step of controlling the engine 4 so that torque based on the basic torque and the acceleration torque is generated; and an acceleration torque changing step of changing the acceleration torque, based on a vehicle-width-direction mounting position of a steering wheel 6 and an operation direction of the steering wheel 6 when the steering angle is reduced.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 3, 2023
    Assignees: MAZDA MOTOR CORPORATION, IKUTOKU GAKUEN
    Inventors: Takatoshi Tsukano, Shohei Yamada, Daisuke Umetsu, Fuminori Kato, Osamu Sunahara, Masato Abe, Makoto Yamakado, Yoshio Kano, Kazuki Sato
  • Publication number: 20230184252
    Abstract: Provided is a motor-integrated fluid machine that has improved performance and reliability by efficiently cooling a fluid machine body and a motor without increasing an installation space. The present invention is characterized by being provided with: a fluid machine unit that compresses or expands a fluid; a motor unit that has a drive shaft connected to the fluid machine unit; and a cooling fan that cools the motor unit and the fluid machine unit by sucking cooling air from the motor unit side and that is connected to the drive shaft at the side opposed to that connected to the fluid machine unit, wherein between the motor unit and the cooling fan, the minimum sectional area of a cooling air passage from the outside in the radial direction toward the drive shaft is larger than that of a cooling air passage from the motor unit side toward the cooling fan.
    Type: Application
    Filed: July 15, 2016
    Publication date: June 15, 2023
    Inventors: Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Fuminori KATO
  • Patent number: 11585335
    Abstract: A gas compressor includes inverters, a plurality of compressor units and a control device for controlling each of the inverters. The control device increases the number of compressor bodies to be operated after confirming that the rotational speed of the operational motors will reach a steady value immediately after causing the number of the compressor bodies to be operated to increase.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 21, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Norio Aoyagi, Akihiro Yamamoto, Yoshiyuki Kanemoto, Hiroaki Saito, Fuminori Kato, Daichi Oka
  • Patent number: 11542951
    Abstract: The purpose of the present invention is to provide a gas compressor capable of reducing variation in discharge pressure through control of the number of compressor bodies and a control method for the gas compressor. In order to solve the problem, this gas compressor includes a plurality of compressor units each having a compressor body, a motor for driving the compressor body, and an inverter for controlling a rotational speed of the motor, and a control device for controlling the inverters. Discharge pipes of the compressor bodies converge on one main discharge pipe. A drive frequency of the motor of each compressor body is controlled by the corresponding inverter, whereby a pressure of each discharge pipe is controlled and a discharge pressure of the main discharge pipe is controlled.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 3, 2023
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Akihiro Yamamoto, Yoshiyuki Kanemoto, Norio Aoyagi, Hiroaki Saito, Fuminori Kato, Daichi Oka
  • Publication number: 20220349400
    Abstract: The purpose of the present invention is to provide a scroll-type fluid machine for which maintenance can easily be performed in necessary locations, and a maintenance method for said fluid machine.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: Fuminori KATO, Shumpei YAMAZAKI, Yoshiyuki KANEMOTO, Takanori EMI
  • Patent number: 11469643
    Abstract: A scroll compressor includes a rotor, a stator, a rotary shaft, an end bracket, an orbiting scroll, a fixed scroll, a suction type cooling fan, and a discharge brush. The discharge brush is fixed to the end bracket facing the cooling fan by a fixing member attached in a radial direction relative to the rotary shaft, and one end of which is in contact with the rotary shaft, in a space secured by the clearance.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 11, 2022
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto
  • Patent number: 11447112
    Abstract: Disclosed is a vehicle attitude control system for controlling the attitude of a vehicle in which a road wheel suspension is configured such that a roll axis of a vehicle body inclines downwardly in a forward direction. The vehicle attitude control system includes: a lateral acceleration sensor operable to detect a lateral acceleration; a brake actuator operable to apply a braking force; and a brake control device operable, based on a traveling state of the vehicle, to generate the braking force, wherein the brake control device is configured to execute vehicle attitude control of applying, to an inner rear road wheel, a larger braking force when the lateral acceleration of the vehicle is relatively large than when the lateral acceleration is relatively small, thereby suppressing uplift of an inner rear portion of the vehicle body.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 20, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Naoki Hiraga, Daisuke Umetsu, Fuminori Kato, Hiroyuki Ogata
  • Patent number: 11441559
    Abstract: A scroll fluid machine includes a main body and a motor unit. The main body unit configured to compress a fluid. The motor unit configured to drive the main body unit. The main body unit and the motor unit are connected via the eccentric portion. The main body casing and the motor cover are fastened with a fastening member. The motor unit includes a main bearing that is fixed to an inside of the motor cover by a flange. The main bearing is configured to support the shaft and is located between the flange and an end bracket on an opposite side of the main body unit with respect to the flange.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 13, 2022
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Shumpei Yamazaki, Yoshiyuki Kanemoto, Takanori Emi
  • Patent number: 11401934
    Abstract: An object of the present invention is to provide a rotary displacement compressor capable of determining whether a check valve has failed, and preventing the life of a compressor body from being reduced when a compression operation stops. In order to achieve the object, a rotary displacement compressor includes a compressor body that compresses a medium by reducing a volume of the medium using rotation; a discharge pipe through which a compressed medium, which is discharged through a discharge port of the compressor body, flows; a check valve that shuts off the compressed medium flowing backward to the compressor body; and a backflow control valve that allows a predetermined rate of the compressed medium to flow backward. The check valve and the backflow control valve are disposed in series via the discharge pipe.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 2, 2022
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto, Hiroaki Saito, Akihiro Yamamoto
  • Publication number: 20220049691
    Abstract: There are provided an operation number control device and a method for controlling the same that can level the operation times of the fluid machines, which are connected to the operation number control device. A fluid machine system comprises a plurality of fluid machines, and an operation number control device capable of individually controlling start and stop of the fluid machines. The operation number control device sets a continuous operation time for each of the fluid machines based on total operation times of the fluid machine and other fluid machines. When among fluid machines in operation, there is a fluid machine for which the continuous operation time set for the fluid machine has elapsed and there is a fluid machine at stop, the operation number control device causes the fluid machine at stop to start and causes the fluid machine to stop.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 17, 2022
    Inventors: Norio AOYAGI, Hiroaki SAITO, Fuminori KATO, Daichi OKA, Akihiro YAMAMOTO
  • Patent number: 11251677
    Abstract: Provided are: a motor for which high strength can be obtained in a motor casing; and a compressor that uses the motor. This motor 10 has: a rotating shaft 12 provided in a rotatable manner; a rotor 32 that rotates integrally with the rotating shaft 12; a stator 31 that rotationally drives the rotor 32; and a motor casing 14 that is a cylindrical body for accommodating the rotor 32 and the stator 31, and has, on the outer circumferential surface thereof, ribs 22 extending in a circumferential direction.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 15, 2022
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Yoshiyuki Kanemoto
  • Patent number: 11246309
    Abstract: This invention discloses a preserving agent for organs or tissue comprising (A) quercetin, and (B) at least one sugar selected from the group consisting of fructose and sucrose; a preserving solution for organs or tissue comprising the preserving agent; and a preservation method for organs or tissue comprising the step of immersing an organ or tissue in a liquid mixture comprising (A) quercetin, and (B) at least one sugar selected from the group consisting of fructose and sucrose.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 15, 2022
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Fuminori Kato, Shuichi Yotsuya
  • Patent number: 11198471
    Abstract: The present invention provides a method of controlling a vehicle (1) in which rear road wheels (2b) are driven. The method includes: a step of selecting a first pedal mode in which an acceleration is set based on a depression amount of an accelerator pedal, or a second pedal mode in which the acceleration and a deceleration are set; a step of setting a basic torque based on a driving state of the vehicle; a step of setting an incremental torque to allow the basic torque to be increased in accordance with an increase in steering angle; and a step of generating a torque which is determined by adding the incremental torque to the basic torque, wherein the incremental torque setting step includes setting the incremental torque to different values between when the first pedal mode is selected and when the second pedal mode is selected.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 14, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisaku Ogawa, Daisuke Umetsu, Fuminori Kato
  • Publication number: 20210339735
    Abstract: A vehicle control method is applied to a vehicle 1 in which a front wheel 2 is driven by an engine 4, and the method includes a basic torque setting step of setting basic torque to be generated by the engine 4, based on an operational state of the vehicle 1; an acceleration torque setting step of setting acceleration torque, based on a reduction in steering angle of a steering apparatus 5 mounted on the vehicle 1; a torque generation step of controlling the engine 4 so that torque based on the basic torque and the acceleration torque is generated; and an acceleration torque changing step of changing the acceleration torque, based on a vehicle-width-direction mounting position of a steering wheel 6 and an operation direction of the steering wheel 6 when the steering angle is reduced.
    Type: Application
    Filed: September 4, 2019
    Publication date: November 4, 2021
    Applicants: MAZDA MOTOR CORPORATION, IKUTOKU GAKUEN
    Inventors: Takatoshi TSUKANO, Shohei YAMADA, Daisuke UMETSU, Fuminori KATO, Osamu SUNAHARA, Masato ABE, Makoto YAMAKADO, Yoshio KANO, Kazuki SATO
  • Publication number: 20210316717
    Abstract: A vehicle control method is applied to a vehicle 1 in which a front wheel 2 is driven by an engine 4, and the method includes a basic torque setting step of setting basic torque to be generated by the engine 4, based on an operational state of the vehicle 1; a deceleration torque setting step of setting deceleration torque, based on an increase in steering angle of a steering apparatus 5 mounted on the vehicle 1; a torque generation step of controlling the engine 4 so that torque based on the basic torque and the deceleration torque is generated; and a deceleration torque changing step of changing the deceleration torque, based on a vehicle-width-direction mounting position of a steering wheel 6 and an operation direction of the steering wheel 6 when the steering angle is increased.
    Type: Application
    Filed: September 4, 2019
    Publication date: October 14, 2021
    Applicants: MAZDA MOTOR CORPORATION, IKUTOKU GAKUEN
    Inventors: Takatoshi TSUKANO, Shohei YAMADA, Daisuke UMETSU, Fuminori KATO, Osamu SUNAHARA, Masato ABE, Makoto YAMAKADO, Yoshio KANO, Kazuki SATO
  • Publication number: 20210289670
    Abstract: A package-type fluid machine includes a compressor unit including a compression portion that compresses a fluid, a motor that drives the compression portion, and a cooling fan that is driven by the motor; a machine chamber in which the compressor unit is disposed; an inverter chamber which is adjacent to the machine chamber and in which an inverter is disposed; a partition wall that partitions off the machine chamber from the inverter chamber and has an opening; and an inverter intake port that is disposed in the inverter chamber to take in a cooling gas. The cooling fan is disposed on a side of the machine chamber, the opening being located on the side. The cooling fan is driven to cause the cooling gas to flow from the inverter intake port to the opening to cool the inverter.
    Type: Application
    Filed: September 13, 2018
    Publication date: September 16, 2021
    Inventors: Fuminori KATO, Yoshiyuki KANEMOTO, Hiroaki SAITO, Daichi OKA, Akihiro YAMAMOTO
  • Patent number: 11015597
    Abstract: The objective of the present invention is to provide a scroll-type fluid machine, and a method for assembling this scroll-type fluid machine, with which an eccentric shaft and a non-eccentric part can be positioned easily in the same step, while allowing a main body unit and a motor unit to be separated and connected without being disassembled.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 25, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shumpei Yamazaki, Yoshiyuki Kanemoto, Fuminori Kato, Takanori Emi