Patents by Inventor Ryosuke Kinugawa

Ryosuke Kinugawa 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).

  • Publication number: 20210200528
    Abstract: A program update system for a working machine, includes a machine body, a working device to be used for work, the working device being provided to the machine body, a storage device to store an update program for the machine body or the working device, and an update controller to control the update program. The update controller executes the update program for the working device based on a state of the machine body or the working device.
    Type: Application
    Filed: November 19, 2020
    Publication date: July 1, 2021
    Applicant: KUBOTA CORPORATION
    Inventors: Keisuke MIURA, Ryo IKEDA, Shinji HAYASHI, Ryosuke KINUGAWA, Koichi FUJIMOTO
  • Patent number: 11035267
    Abstract: A working machine includes a manual switch, a filter to catch particulate matters included in exhaust gas that is exhausted from a prime mover, a first cleaning controller to perform automatic cleaning that automatically combusts the particulate matters when a deposits amount of the particulate matters caught by the filter is a first deposits amount threshold or more, a second cleaning controller to perform manual cleaning that combusts the particulate matters based on a command of the manual switch when the deposits amount is equal to or more than a second deposits amount threshold that is larger than the first deposits amount threshold, and a third cleaning controller to perform assist cleaning that combusts the particulate matters based on the command of the manual switch when the deposits amount is equal to or more than the first deposits amount threshold and smaller than the second deposits amount threshold.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 15, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Ryuki Nishimoto, Keisuke Miura, Ryosuke Kinugawa
  • Patent number: 10967834
    Abstract: An anti-theft system for a working machine, includes a communication device disposed on the working machine, the communication device having a first communicator, a mobile terminal having a storage to store authentication information, and a second communicator, and a control device disposed on the working machine, the control device having an authentication processor to execute an authentication processing that determines whether to provide a permission of driving a driving portion of the working machine based on the authentication information. The first communicator sends a beacon to the mobile terminal before the authentication processing of the authentication processor is executed. The second communicator sends the authentication information to the communication device after receiving the beacon, the authentication information being stored by the storage.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: April 6, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Keisuke Miura, Keisuke Egashira
  • Patent number: 10939355
    Abstract: A communication system for a working machine includes a communication device disposed on the working machine, and a mobile terminal to be connected to the communication device, the mobile terminal having a first application and a second application. The communication device has a first communication circuit to transmit, to the mobile terminal, a beacon including a first application identifier corresponding to the first application, and a second application identifier corresponding to the second application. And, the mobile terminal has a calculation circuit to execute the second application after the first application is activated.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 2, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Keisuke Egashira, Keisuke Miura
  • Patent number: 10904930
    Abstract: A communication device for a working machine disposed on the working machine and configured to be connected to a mobile terminal, includes an identifier setting circuit configured to set at least one of a first program identifier and a second program identifier, and a first communicating circuit configured to transmit, to the mobile terminal, the first program identifier set by the identifier setting circuit with a first beacon and the second program identifier set by the identifier setting circuit with a second beacon, the first communicating circuit being configured to transmit the second beacon to the mobile terminal while the mobile terminal executes a first program after receiving the first beacon, the first program corresponding to the first program identifier being included in the first beacon.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 26, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Keisuke Egashira, Keisuke Miura
  • Patent number: 10904819
    Abstract: A communication device for a working machine disposed on the working machine and configured to be connected to a mobile terminal, includes a first communication circuit to transmit, to the mobile terminal, an application identifier with a beacon conforming to Bluetooth Low Energy (a registered trademark) and to transmit data to the mobile terminal after the mobile terminal activates an application corresponding to an application identifier, the data relating to the working machine and corresponding to the application.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 26, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Keisuke Egashira, Keisuke Miura
  • Patent number: 10865692
    Abstract: A cooling control system for a working machine includes a fan, a housing to which the fan is attached, a prime mover having an output shall, a rotor to be rotated by a rotating power of the output shaft and to be rotated with the housing by a fluid introduced to a gap formed between the housing and the rotor, a fluid setting circuit to set an introduction amount of the fluid introduced to the gap, and a control device to control the fluid setting circuit to control the fan. The control device includes a setting circuit to set a target rotation speed of the fan based on a responsiveness of an actual rotation speed of the fan at time of changing of the target rotation speed of the fan.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 15, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Nozomu Minagawa, Hiroshi Tatsumi, Keisuke Miura, Makoto Noguchi
  • Publication number: 20200362884
    Abstract: A hydraulic system for a working machine includes a hydraulic actuator having a first fluid chamber and a second fluid chamber, an accumulator, an outputting fluid tube to output an operation fluid, and a switching valve to be switched between a first position and a second position. The first position allows the first fluid chamber and the second fluid chamber to be communicated with the outputting fluid tube and thereby allowing a floating operation. The second position allows the first fluid chamber and the accumulator to be communicated with each other, allows the second fluid chamber and the outputting fluid tube to be communicated with each other, and thereby allows an anti-vibration operation.
    Type: Application
    Filed: August 7, 2020
    Publication date: November 19, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji FUKUDA, Keigo HONDA, Ryosuke KINUGAWA, Ryuki NISHIMOTO, Yuji YAMASHITA, Daisuke SAKURAI
  • Publication number: 20200318320
    Abstract: A working machine includes a pair of traveling devices, a pair of traveling motors having a first speed and a second speed higher than the first speed, a pair of traveling pumps to supply operation fluid to the traveling motors, a connector fluid tube connecting the traveling motors and the traveling pumps, a traveling-pump pressure detector to detect a traveling-pump pressure that is pressure generated in the connector fluid tube, a revolving speed detector to detect a prime-mover revolving speed, a third storage to store a second decelerating judgment table representing a relation between the prime-mover revolving speed and a second decelerating judgment pressure, and a controller having: an automatic decelerator portion to perform an automatic deceleration process for reducing a speed of the traveling motor, and a differential pressure calculator portion to calculate a traveling differential pressure between one traveling pump pressure and another traveling pump pressure.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 8, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji FUKUDA, Jun TOMITA, Ryota HAMAMOTO, Ryosuke KINUGAWA, Yoshimitsu TANAKA
  • Patent number: 10774852
    Abstract: A hydraulic system for a working machine includes a hydraulic actuator having a first fluid chamber and a second fluid chamber, an accumulator, an outputting fluid tube to output an operation fluid, and a switching valve to be switched between a first position and a second position. The first position allows the first fluid chamber and the second fluid chamber to be communicated with the outputting fluid tube and thereby allowing a floating operation. The second position allows the first fluid chamber and the accumulator to be communicated with each other, allows the second fluid chamber and the outputting fluid tube to be communicated with each other, and thereby allows an anti-vibration operation.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 15, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Keigo Honda, Ryosuke Kinugawa, Ryuki Nishimoto, Yuji Yamashita, Daisuke Sakurai
  • Publication number: 20200263393
    Abstract: A working machine includes a prime mover, a traveling pump to be driven by the prime mover to output operation fluid, a traveling motor to be driven by the operation fluid outputted from the traveling pump and to change a motor speed between a first speed and a second speed higher than the first speed, a machine body on which the prime mover, the traveling pump, and the traveling motor are arranged, a traveling switching valve to be switched between a first state allowing the traveling motor to rotate at the first speed and a second state allowing the traveling motor to rotate at the second speed, and a controller to reduce a revolving speed of the prime mover based on a traveling condition of the machine body in switching the traveling switching valve between an accelerating state to switch the traveling switching valve from the first state to the second state and a decelerating state to switch the traveling switching valve from the second state to the first state.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 20, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji FUKUDA, Ryosuke KINUGAWA, Ryota HAMAMOTO, Jun TOMITA
  • Publication number: 20200240113
    Abstract: A hydraulic system for a work machine includes a travel hydraulic device which changes a travel speed in accordance with switching positions of a hydraulic switch valve. A controller controls a proportional valve so as to change a pressure of an operation fluid at an increasing rate over a time while the hydraulic switch valve is switched from a first switching position to a second switching position to increase the travel speed from a first speed to a second speed, and at a decreasing rate over the time while the hydraulic switch valve is switched from the second switching position to the first switching position to decrease the travel speed from the second speed to the first speed. A magnitude of the increasing rate is different from one of the decreasing rate to output an operation fluid.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 30, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji FUKUDA, Daiki ABE, Jun TOMITA, Yuya KONISHI, Ryosuke KINUGAWA
  • Patent number: 10648156
    Abstract: A hydraulic system for a work machine includes a hydraulic bump to output an operation fluid, a hydraulic switch valve to be switched among switching positions in accordance with a pressure of the operation fluid, a proportional valve to change the pressure of the operation fluid applied to the hydraulic switch valve, a travel hydraulic device to change a thrust power in accordance with the switching positions of the hydraulic switch valve. And, the hydraulic system includes a controller to control the proportional valve in accordance with a state of the travel hydraulic device.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: May 12, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Daiki Abe, Jun Tomita, Yuya Konishi, Ryosuke Kinugawa
  • Patent number: 10618527
    Abstract: A hydraulic system for a work machine includes a prime mover, a setup member, a hydraulic pump, an operation valve, a hydraulic device, and a memory. The memory stores first control characteristics indicating relations between the first pressure and an actual revolution speed of the prime mover, and stores a second control characteristic indicating a relation between the first pressure and the actual revolution speed of the prime mover. The hydraulic system includes a controller to set the first pressure based on the second control characteristic when a dropping amount of the actual revolution speed from the target revolution speed is less than a threshold value and to set the first pressure based on the first control characteristics determined corresponding to the target revolution speed when the dropping amount of the actual revolution speed from the target revolution speed is the threshold value or more.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 14, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Ryosuke Kinugawa, Kazuyoshi Arii
  • Publication number: 20200056520
    Abstract: A working machine includes a manual switch, a filter to catch particulate matters included in exhaust gas that is exhausted from a prime mover, a first cleaning controller to perform automatic cleaning that automatically combusts the particulate matters when a deposits amount of the particulate matters caught by the filter is a first deposits amount threshold or more, a second cleaning controller to perform manual cleaning that combusts the particulate matters based on a command of the manual switch when the deposits amount is equal to or more than a second deposits amount threshold that is larger than the first deposits amount threshold, and a third cleaning controller to perform assist cleaning that combusts the particulate matters based on the command of the manual switch when the deposits amount is equal to or more than the first deposits amount threshold and smaller than the second deposits amount threshold.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Ryuki NISHIMOTO, Keisuke MIURA, Ryosuke KINUGAWA
  • Patent number: 10364551
    Abstract: A work machine includes a prime mover, a hydraulic pump to be operated by the prime mover to output an operation fluid, a hydraulic device to be operated by the operation fluid, a measurement sensor to measure a first temperature and a second temperature, the first temperature being a temperature of the operation fluid at starting of the prime mover, the second temperature being a temperature of the operation fluid after the starting of the prime mover, and a controller including a determiner to determine an upper limit revolution speed based on the first temperature, the upper limit revolution speed being an upper limit of a revolution speed of the prime mover, and a changer to change the upper limit revolution speed based on the second temperature.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 30, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Ryosuke Kinugawa
  • Patent number: 10337173
    Abstract: A work machine includes an engine, a pilot pump to be driven by the engine to supply a pilot fluid, an operation pump to receive a first pilot fluid to change an output power in accordance with the first pilot fluid, a pilot fluid tube provided between the pilot pump and the operation pump, an operation valve connected to the pilot fluid tube to output the first pilot fluid, the first pilot fluid being a part of the pilot fluid supplied from the pilot fluid, a temperature sensor to measure a temperature of at least one of an operation fluid including the pilot fluid, a cooling water, an engine oil, and an outside air, and a pressure controller to control a first pilot pressure of the pilot fluid outputted from the operation valve when a temperature measured by the temperature sensor is equal to or higher than a first temperature.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 2, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Ryosuke Kinugawa, Hiroaki Nakagawa
  • Publication number: 20190200403
    Abstract: A communication device for a working machine disposed on the working machine and configured to be connected to a mobile terminal, includes an identifier setting circuit configured to set at least one of a first program identifier and a second program identifier, and a first communicating circuit configured to transmit, to the mobile terminal, the first program identifier set by the identifier setting circuit with a first beacon and the second program identifier set by the identifier setting circuit with a second beacon, the first communicating circuit being configured to transmit the second beacon to the mobile terminal while the mobile terminal executes a first program after receiving the first beacon, the first program corresponding to the first program identifier being included in the first beacon.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Applicant: Kubota Corporation
    Inventors: Ryosuke KINUGAWA, Keisuke Egashira, Keisuke Miura
  • Publication number: 20190200224
    Abstract: A communication system for a working machine includes a communication device disposed on the working machine, and a mobile terminal to be connected to the communication device. The communication device transmits a service universal unique identifier (UUID) to the mobile terminal. The mobile terminal transmits unique information to the communication device. The communication device issues connection request to the mobile terminal after receiving the unique information. The mobile terminal requests transmission of authentication information after issuing the connection request, the authentication information being used for paring. The communication device transmits the authentication information to the mobile terminal in response to the request. And, the mobile terminal judges whether the paring is established based on the authentication information, and executes a program based on the service universal unique identifier (UUID) when the paring is established.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Ryosuke KINUGAWA, Keisuke EGASHIRA, Keisuke MIURA
  • Publication number: 20190200276
    Abstract: A communication device for a working machine disposed on the working machine and configured to be connected to a mobile terminal, includes a first communication circuit to transmit, to the mobile terminal, an application identifier with a beacon conforming to Bluetooth Low Energy (a registered trademark) and to transmit data to the mobile terminal after the mobile terminal activates an application corresponding to an application identifier, the data relating to the working machine and corresponding to the application.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Ryosuke KINUGAWA, Keisuke EGASHIRA, Keisuke MIURA