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).
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Patent number: 11666000Abstract: 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: GrantFiled: May 18, 2020Date of Patent: June 6, 2023Assignee: Kubota CorporationInventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
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Publication number: 20200281124Abstract: 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: ApplicationFiled: May 18, 2020Publication date: September 10, 2020Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
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Patent number: 10694676Abstract: 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: GrantFiled: December 11, 2017Date of Patent: June 30, 2020Assignee: Kubota CorporationInventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
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Patent number: 10538179Abstract: 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: GrantFiled: November 28, 2016Date of Patent: January 21, 2020Assignee: Kubota CorporationInventors: Masato Asahara, Ryotaro Senda, Seiya Yoshida, Hideki Aoki, Kensuke Uemoto, Yoshikazu Togoshi, Yuto Fujii
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Patent number: 10426084Abstract: 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: GrantFiled: March 6, 2015Date of Patent: October 1, 2019Assignee: KUBOTA CORPORATIONInventors: Hirokazu Ito, Yoshikazu Togoshi
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Patent number: 10293853Abstract: 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: GrantFiled: April 18, 2017Date of Patent: May 21, 2019Assignee: Kubota CorporationInventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
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Patent number: 10188032Abstract: 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: GrantFiled: March 6, 2015Date of Patent: January 29, 2019Assignee: KUBOTA CORPORATIONInventors: Hirokazu Ito, Yoshikazu Togoshi, Miyuki Ikeda
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Patent number: 10112645Abstract: 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: GrantFiled: October 4, 2016Date of Patent: October 30, 2018Assignee: KUBOTA CORPORATIONInventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
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Publication number: 20180235150Abstract: 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: ApplicationFiled: December 11, 2017Publication date: August 23, 2018Inventors: Kazuaki Nogami, Yoshikazu Togoshi, Takahiro Shiraga, Eiji Sato, Seiya Yoshida
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Patent number: 9731760Abstract: 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: GrantFiled: September 11, 2014Date of Patent: August 15, 2017Assignee: KUBOTA CORPORATIONInventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
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Publication number: 20170217488Abstract: 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: ApplicationFiled: April 18, 2017Publication date: August 3, 2017Inventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
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Publication number: 20170166044Abstract: 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: ApplicationFiled: November 28, 2016Publication date: June 15, 2017Inventors: Masato Asahara, Ryotaro Senda, Seiya Yoshida, Hideki Aoki, Kensuke Uemoto, Yoshikazu Togoshi, Yuto Fujii
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Patent number: 9676270Abstract: 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: GrantFiled: May 26, 2016Date of Patent: June 13, 2017Assignee: Kubota CorporationInventors: Hironori Tsuchihashi, Hideya Umemoto, Osami Fujiwara, Yoshikazu Togoshi, Yoshikazu Takemoto
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Patent number: 9656687Abstract: 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: GrantFiled: August 4, 2014Date of Patent: May 23, 2017Assignee: Kubota CorporationInventors: Kazuo Koike, Hirokazu Ito, Yoshikazu Togoshi
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Publication number: 20170087976Abstract: 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: ApplicationFiled: May 26, 2016Publication date: March 30, 2017Inventors: Hironori Tsuchihashi, Hideya Umemoto, Osami Fujiwara, Yoshikazu Togoshi, Yoshikazu Takemoto
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Patent number: 9596804Abstract: 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: GrantFiled: March 6, 2015Date of Patent: March 21, 2017Assignee: KUBOTA CORPORATIONInventors: Masato Asahara, Hideya Umemoto, Osami Fujiwara, Hideki Aoki, Akira Minoura, Yoshikazu Togoshi
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Publication number: 20170021861Abstract: 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: ApplicationFiled: October 4, 2016Publication date: January 26, 2017Applicant: KUBOTA CORPORATIONInventors: Hirokazu ITO, Kazuo KOIKE, Yoshikazu TOGOSHI
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Patent number: 9493180Abstract: 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: GrantFiled: September 11, 2014Date of Patent: November 15, 2016Assignee: KUBOTA CORPORATIONInventors: Hirokazu Ito, Kazuo Koike, Yoshikazu Togoshi
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Publication number: 20160057924Abstract: 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: ApplicationFiled: March 6, 2015Publication date: March 3, 2016Applicant: KUBOTA CORPORATIONInventors: Masato ASAHARA, Hideya UMEMOTO, Osami FUJIWARA, Hideki AOKI, Akira MINOURA, Yoshikazu TOGOSHI
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Publication number: 20150359174Abstract: 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: ApplicationFiled: March 6, 2015Publication date: December 17, 2015Applicant: KUBOTA CORPORATIONInventors: Hirokazu ITO, Yoshikazu TOGOSHI, Miyuki IKEDA