Patents by Inventor Yoshikazu Togoshi

Yoshikazu Togoshi 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: 11666000
    Abstract: In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: June 6, 2023
    Assignee: Kubota Corporation
    Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
  • Publication number: 20200281124
    Abstract: In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 10, 2020
    Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
  • Patent number: 10694676
    Abstract: In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 30, 2020
    Assignee: Kubota Corporation
    Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
  • Patent number: 10538179
    Abstract: A mower may include a body frame, a mower unit installed to the body frame, a grass collection container optionally installed at a rear portion of the body frame, a front-wheel support arm provided at a front portion of the body frame, a left front wheel and a right front wheel supported by the front-wheel support arm, a counterweight, and a weight bracket. The weight bracket may be provided on the front-wheel support arm and configured to attach the counterweight thereto. The counterweight may include a plurality of weight elements. The weight bracket may include a plurality of attachment portions. The at least one weight element may be attached to each attachment portion.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: January 21, 2020
    Assignee: Kubota Corporation
    Inventors: Masato Asahara, Ryotaro Senda, Seiya Yoshida, Hideki Aoki, Kensuke Uemoto, Yoshikazu Togoshi, Yuto Fujii
  • Patent number: 10426084
    Abstract: A mower includes a rotary grass cutting blade. A mower deck houses the rotary blade in an interior thereof. A motor has at least a portion thereof positioned or extending into the interior of the mower deck. The motor rotationally drives the rotary blade. A guide member can be utilized to form an air flow passage along the motor, with the air flow passage connecting the interior and exterior of the mower deck.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 1, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Yoshikazu Togoshi
  • Patent number: 10293853
    Abstract: A self-propelled vehicle includes a maneuvering unit, a drive unit including first and second drive sections, which are driven and controlled by drive wheel control commands, a drive wheel unit including left and right drive wheels driven by the first and second drive sections, respectively, at least one caster wheel which is controlled by a caster wheel control command, a bank detector for detecting a degree of bank of the vehicle and a control unit including a drive wheel control section for generating the drive wheel control commands. The control unit further includes a caster wheel control section which generates the caster wheel control command for controlling the steering angle of the caster wheel during a bank traversing travel, based on the bank degree so as to resolve a difference between a target travel and the actual travel which occurs during the bank traversing travel.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 21, 2019
    Assignee: Kubota Corporation
    Inventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
  • Patent number: 10188032
    Abstract: A mower includes a rotary blade cutting grass due to being rotationally driven. A work motor rotationally drives the rotary blade. A mower deck houses the rotary blade in an interior thereof. A first shroud forms an air flow passage along the work motor. The air flow passage connects the interior and exterior of the mower deck.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 29, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Yoshikazu Togoshi, Miyuki Ikeda
  • Patent number: 10112645
    Abstract: A traveling vehicle including a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 30, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
  • Publication number: 20180235150
    Abstract: In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.
    Type: Application
    Filed: December 11, 2017
    Publication date: August 23, 2018
    Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
  • Patent number: 9731760
    Abstract: A traveling vehicle includes: a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 15, 2017
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
  • Publication number: 20170217488
    Abstract: A self-propelled vehicle includes a maneuvering unit, a drive unit including first and second drive sections, which are driven and controlled by drive wheel control commands, a drive wheel unit including left and right drive wheels driven by the first and second drive sections, respectively, at least one caster wheel which is controlled by a caster wheel control command, a bank detector for detecting a degree of bank of the vehicle and a control unit including a drive wheel control section for generating the drive wheel control commands. The control unit further includes a caster wheel control section which generates the caster wheel control command for controlling the steering angle of the caster wheel during a bank traversing travel, based on the bank degree so as to resolve a difference between a target travel and the actual travel which occurs during the bank traversing travel.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
  • Publication number: 20170166044
    Abstract: In a work vehicle, a fuel supply path including a first fuel supply path connecting a first fuel tank to a merging portion, a second fuel supply path connecting a second fuel tank to the merging portion, and a common supply path connecting the merging portion to an engine is formed. A fuel pump supplying fuel to the engine is provided in the common supply path. Check valves that open according to a differential pressure between pressures on the fuel tank side and the merging portion side are interposed on the first fuel supply path and the second fuel supply path. A communication channel establishes communication between an upper space of the first fuel tank and an upper space of the second fuel tank is formed.
    Type: Application
    Filed: November 28, 2016
    Publication date: June 15, 2017
    Inventors: Masato Asahara, Ryotaro Senda, Seiya Yoshida, Hideki Aoki, Kensuke Uemoto, Yoshikazu Togoshi, Yuto Fujii
  • Patent number: 9676270
    Abstract: A work vehicle having a hood for covering an engine room is disclosed. The engine room has a first region and a second region partitioned from each other, the engine room being configured such that air can be introduced from outside of the hood to the first region. A radiator is disposed in the first region, and air flows through the radiator from the first region to the second region. In the second region, the engine and an accessory unit for the engine are provided. The work vehicle includes an adjusting device for adjusting an amount of the air that flows from the first region to the second region.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: June 13, 2017
    Assignee: Kubota Corporation
    Inventors: Hironori Tsuchihashi, Hideya Umemoto, Osami Fujiwara, Yoshikazu Togoshi, Yoshikazu Takemoto
  • Patent number: 9656687
    Abstract: A self-propelled vehicle includes a maneuvering unit, a drive unit including first and second drive sections, which are driven and controlled by drive wheel control commands, a drive wheel unit including left and right drive wheels driven by the first and second drive sections, respectively, at least one caster wheel which is controlled by a caster wheel control command, a bank detector for detecting a degree of bank of the vehicle and a control unit including a drive wheel control section for generating the drive wheel control commands. The control unit further includes a caster wheel control section which generates the caster wheel control command for controlling the steering angle of the caster wheel during a bank traversing travel, based on the bank degree so as to resolve a difference between a target travel and the actual travel which occurs during the bank traversing travel.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: May 23, 2017
    Assignee: Kubota Corporation
    Inventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
  • Publication number: 20170087976
    Abstract: A work vehicle having a hood for covering an engine room is disclosed. The engine room has a first region and a second region partitioned from each other, the engine room being configured such that air can be introduced from outside of the hood to the first region. A radiator is disposed in the first region, and air flows through the radiator from the first region to the second region. In the second region, the engine and an accessory unit for the engine are provided. The work vehicle includes an adjusting device for adjusting an amount of the air that flows from the first region to the second region.
    Type: Application
    Filed: May 26, 2016
    Publication date: March 30, 2017
    Inventors: Hironori Tsuchihashi, Hideya Umemoto, Osami Fujiwara, Yoshikazu Togoshi, Yoshikazu Takemoto
  • Patent number: 9596804
    Abstract: A riding mower is provided with a front frame, a rear frame on which a drive unit is mounted, a rollover protective structure (ROPS). A first coupling part couples one front frame and one rear frame. A second coupling part couples a rear end of the front frame and a supporting column of the ROPS. A third coupling part couples the supporting column and the rear frame. The riding mower utilizes at least one triangular structural element defined in part by the first, second and third coupling parts.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 21, 2017
    Assignee: KUBOTA CORPORATION
    Inventors: Masato Asahara, Hideya Umemoto, Osami Fujiwara, Hideki Aoki, Akira Minoura, Yoshikazu Togoshi
  • Publication number: 20170021861
    Abstract: A traveling vehicle including a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Applicant: KUBOTA CORPORATION
    Inventors: Hirokazu ITO, Kazuo KOIKE, Yoshikazu TOGOSHI
  • Patent number: 9493180
    Abstract: A traveling vehicle includes: a traveling machine body supported by a pair of left and right driving wheels; a pair of left motor and the right motor configured to independently drive the driving wheels; a riding part disposed behind the traveling machine body and connected to the traveling machine body, and configured to enable riding of a worker; a handle connected to the traveling machine body so as to be swingable left and right with respect to the traveling machine body; a plurality of load sensors for detecting a forward and backward weight shift of the worker who is riding on the riding part; a rotation angle sensor for detecting a leftward and rightward swinging operation amount of the handle; and a controller for controlling operation of the left and right motors based on detection values by the plurality of load sensors and the rotation angle sensor.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: November 15, 2016
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
  • Publication number: 20160057924
    Abstract: A riding mower is provided with a front frame, a rear frame on which a drive unit is mounted, a rollover protective structure (ROPS). A first coupling part couples one front frame and one rear frame. A second coupling part couples a rear end of the front frame and a supporting column of the ROPS. A third coupling part couples the supporting column and the rear frame. The riding mower utilizes at least one triangular structural element defined in part by the first, second and third coupling parts.
    Type: Application
    Filed: March 6, 2015
    Publication date: March 3, 2016
    Applicant: KUBOTA CORPORATION
    Inventors: Masato ASAHARA, Hideya UMEMOTO, Osami FUJIWARA, Hideki AOKI, Akira MINOURA, Yoshikazu TOGOSHI
  • Publication number: 20150359174
    Abstract: A mower includes a rotary blade cutting grass due to being rotationally driven. A work motor rotationally drives the rotary blade. A mower deck houses the rotary blade in an interior thereof. A first shroud forms an air flow passage along the work motor. The air flow passage connects the interior and exterior of the mower deck.
    Type: Application
    Filed: March 6, 2015
    Publication date: December 17, 2015
    Applicant: KUBOTA CORPORATION
    Inventors: Hirokazu ITO, Yoshikazu TOGOSHI, Miyuki IKEDA