Patents by Inventor Hitoshi Azuma

Hitoshi Azuma 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: 20220112950
    Abstract: A working vehicle comprises: a vehicle body; a linkage device configured to link a working device to the vehicle body; a prime mover provided on the vehicle body; a traveling device configured to cause the vehicle body to travel; a transmission device configured to transmit power from the prime mover to the traveling device and perform a speed change process to change a speed of the vehicle body; an increase-in-speed detection device configured to detect an increase in speed of the vehicle body; and a speed change restraint unit configured such that, during the speed change process performed by the transmission device, when the increase in speed detected by the increase-in-speed detection device has become equal to or greater than a threshold, the speed change restraint unit stops the speed change process performed by the transmission device.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 14, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Hitoshi AZUMA, Michita KONO, Hiroshi SOTA
  • Patent number: 11268614
    Abstract: A working vehicle includes a traveling clutch to be switched between an engaging state and a disengaging state, a brake to brake the traveling device according to an operation of a brake operator, and a controller to perform a braking control to perform the braking, and an auto-switching controller to switch the traveling clutch from the engaging state to the disengaging state. The controller performs a first processing to switch the traveling clutch from the engaging state to the disengaging state when the brake operator is operated in a case where the auto-switching control is valid and a vehicle speed is less than a threshold, and a second processing to prevent the traveling clutch from being switched from the engaging state to the disengaging state even when the brake operator is operated in a case where the vehicle speed is equal to or higher than the threshold.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 8, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Yoshihiko Kuroshita, Tetsuo Yamaguchi, Michita Kono, Hitoshi Azuma, Shinji Ohara
  • Patent number: 11248668
    Abstract: A working vehicle includes a first hydraulic clutch connected to the first traveling shaft, a second hydraulic clutch connected to the first traveling shaft separately from the first hydraulic clutch, a first gear mechanism to transmit, to a second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is disengaged, and a second gear mechanism to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is disengaged.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 15, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Hitoshi Azuma, Tetsuo Yamaguchi, Shinji Ohara
  • Patent number: 11247557
    Abstract: A working vehicle includes a PTO shaft to transmit power of a propulsion shaft, a PTO clutch including a first rotor to be rotated by the power of the propulsion shaft, a second rotor to transmit the power to the PTO shaft, a press to be moved by a pressure of operation fluid between an engaging side on which the first rotor is engaged with the second rotor and a disengaging side, and a PTO brake to brake the PTO shaft when the press is positioned on the disengaging side, a control valve to control the pressure of the operation fluid to be applied to the PTO clutch, a rate setter to set a reducing rate at which the pressure of the operation fluid is reduced, and a controller to control the control valve based on the reducing rate.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: February 15, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Hitoshi Azuma, Tetsuo Yamaguchi, Shinji Ohara, Yoshihiko Kuroshita, Michita Kono
  • Publication number: 20210404147
    Abstract: A working vehicle includes a prime mover, a traveling device, a traveling clutch switchable between an engaged state to transmit, to the traveling device, power provided from the prime mover and a disengaged state to interrupt the power transmitting to the traveling device, an automatic switching controller to switch the traveling clutch from the disengaged state to the engaged state, and a status detector to detect at least either a status of the prime mover or a status of the traveling device. The automatic switching controller changes a switching speed of the traveling clutch switched from the disengaged state to the engaged state based on the status detected by the status detector.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 30, 2021
    Inventor: Hitoshi AZUMA
  • Publication number: 20210164561
    Abstract: A working vehicle includes a first hydraulic clutch connected to the first traveling shaft, a second hydraulic clutch connected to the first traveling shaft separately from the first hydraulic clutch, a first gear mechanism to transmit, to a second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is disengaged, and a second gear mechanism to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is disengaged.
    Type: Application
    Filed: November 17, 2020
    Publication date: June 3, 2021
    Applicant: KUBOTA CORPORATION
    Inventors: Hitoshi AZUMA, Tetsuo YAMAGUCHI, Shinji OHARA
  • Publication number: 20200393041
    Abstract: A working vehicle includes a traveling clutch to be switched between an engaging state and a disengaging state, a brake to brake the traveling device according to an operation of a brake operator, and a controller to perform a braking control to perform the braking, and an auto-switching controller to switch the traveling clutch from the engaging state to the disengaging state. The controller performs a first processing to switch the traveling clutch from the engaging state to the disengaging state when the brake operator is operated in a case where the auto-switching control is valid and a vehicle speed is less than a threshold, and a second processing to prevent the traveling clutch from being switched from the engaging state to the disengaging state even when the brake operator is operated in a case where the vehicle speed is equal to or higher than the threshold.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 17, 2020
    Inventors: Yoshihiko KUROSHITA, Tetsuo YAMAGUCHI, Michita KONO, Hitoshi AZUMA, Shinji OHARA
  • Publication number: 20200391589
    Abstract: A working vehicle includes a PTO shaft to transmit power of a propulsion shaft, a PTO clutch including a first rotor to be rotated by the power of the propulsion shaft, a second rotor to transmit the power to the PTO shaft, a press to be moved by a pressure of operation fluid between an engaging side on which the first rotor is engaged with the second rotor and a disengaging side, and a PTO brake to brake the PTO shaft when the press is positioned on the disengaging side, a control valve to control the pressure of the operation fluid to be applied to the PTO clutch, a rate setter to set a reducing rate at which the pressure of the operation fluid is reduced, and a controller to control the control valve based on the reducing rate.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 17, 2020
    Inventors: Hitoshi AZUMA, Tetsuo YAMAGUCHI, Shinji OHARA, Yoshihiko KUROSHITA, Michita KONO
  • Publication number: 20190373806
    Abstract: A display device for a working machine, includes a plurality of setting boxes, each of the setting boxes including: an item display portion representing a setting item relating to the working machine; and a setting display portion representing setting information of the setting item. The plurality of setting boxes are displayed on a screen, and a setting input portion to input the setting information corresponding to the setting item of each of the setting boxes is displayed on the screen in addition to the plurality of setting boxes displayed on the screen.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 12, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Ryo WATAYA, Tsuyoshi GONO, Dai KADOTA, Gen FUTAGAMI, Shinya UKAI, Kazutaka FUJIMOTO, Kazuma ISHIHARA, Susumu TAKEOKA, Kiyokazu FUJIBAYASHI, Tetsuo YAMAGUCHI, Hitoshi AZUMA
  • Publication number: 20190350121
    Abstract: A vehicle includes; a vehicle body on which the motor is mounted; an apparatus provided to the traveling vehicle body and also driven by drive power from the motor; an apparatus that performs work on a field; an apparatus that changes the speed of drive power input from the motor and transmits the drive power; a tool that includes speed change stages and is also capable of speed change operation of the speed change apparatus by human operation; a controller that, when the number of speed change stages is changed based on human operation of the speed change operation tool, outputs to the speed change apparatus a speed change command for each predefined number of stages and is also capable of outputting the speed change command for each defined speed change interval; and an operation mechanism that enables adjustment of the speed change interval.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Tetsuo YAMAGUCHI, Yoshihiko KUROSHITA, Hitoshi AZUMA, Michita KONO, Shinji OHARA
  • Patent number: 10217768
    Abstract: In a display device which includes a display panel in which a plurality of pixels are arranged on a substrate two-dimensionally and which is configured to display an image thereon, and a support member which supports the display panel, the support member possesses anisotropy in bending strength so as to encourage one-dimensional deformation (bending along only the X direction) of the display panel while suppressing two-dimensional deformation (bending in the X direction as well as the Y direction) of the display panel.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: February 26, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomio Yaguchi, Yasushi Nakano, Hitoshi Azuma
  • Patent number: 9779674
    Abstract: Provided are a touch panel system with improved indicator detection accuracy and an electronic information device provided with the touch panel system. A touch panel system 1 includes: a touch panel 3 provided with a plurality of electrodes SL, DL; and an indicator position detection unit 5 for detecting a position of the indicator that is in contact with or close to the detection surface P, based on an output signal that is outputted by at least part of the electrodes SL, DL and shows a capacitance formed by the electrode SL. The touch panel system is characterized in that the indicator position detection unit 5 corrects detection sensitivity for each predetermined position within the detection surface P so as to correspond to a pattern of the electrodes SL, DL, and detects the position of the indicator within the detection surface P.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: October 3, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Yumoto, Shunsuke Nagasawa, Hitoshi Azuma
  • Publication number: 20170263649
    Abstract: In a display device which includes a display panel in which a plurality of pixels are arranged on a substrate two-dimensionally and which is configured to display an image therein, and a support member which supports the display panel, the support member possesses anisotropy in bending strength so as to encourage one-dimensional deformation (bending along only the X directional) of the display panel while suppressing two-dimensional deformation (bending in the X direction as well as the Y direction) of the display panel.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 14, 2017
    Inventors: Tomio Yaguchi, Yasushi Nakano, Hitoshi Azuma
  • Publication number: 20160306496
    Abstract: Detection accuracy of an indicator is improved. In a touch panel system 1 for, when an input position is indicated to a touch panel 3, displaying corresponding thereto, a detection standard determining section 615 within a controller section 6 comprises a strength correcting section 615F, which performs strength-correction on a capacitance property of height information z, which periodically varies with regard to at least either of the x or y direction of a detection surface (x, y), to a uniform capacitance property, with regard to distribution of three-dimensional coordinates (x, y, z) including height information z of a capacitance value that periodically varies for each predetermined position within the detection surface (x, y) obtained from respective output signals of the touch panel 3.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 20, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takashi ISHIKAWA, Hitoshi AZUMA, Makoto ITSUKI
  • Patent number: 9458048
    Abstract: A glass cutter is provided which can form, using a wheel, a uniform crack in glass even when a projection or an earlier-formed scribe line is present on the glass. When the wheel is moved on the glass, a fracture layer is formed causing a rib mark to be formed below the fracture layer and a crack to be formed below the rib mark. To cut the glass, the crack is required to be formed uniformly. Applying a force to resist the rotating force of the wheel makes it possible to form a uniform crack even when a projection is present on the glass. This improves glass cutting yield.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: October 4, 2016
    Assignees: Japan Display Inc., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Susumu Sasaki, Katsunori Kuwaki, Makoto Tatemura, Hiroyuki Tani, Hitoshi Azuma, Tomio Yaguchi, Tatsuo Hamamoto, Hideaki Ishige, Shuji Iwasaki, Katsuyuu Takahashi
  • Publication number: 20150309382
    Abstract: A liquid crystal display device includes a first substrate and a second substrate which sandwiches a liquid crystal between itself and the first substrate, wherein the first substrate has thin film transistors and a wiring connection portion in which are formed terminals connected to the thin film transistors, a wiring substrate connected to the terminals is disposed in the wiring connection portion, the second substrate is a plastic substrate, and has an adhesive layer and an inorganic insulating layer formed on top of the adhesive layer, and the adhesive layer covers the wiring connection portion and one portion of the wiring substrate.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Inventors: Hitoshi AZUMA, Susumu SASAKI, Tomio YAGUCHI, Takao EBINE, Katsuyuu TAKAHASHI, Shoichi UCHINO, Akiko IWATA
  • Publication number: 20150302810
    Abstract: Provided are a touch panel system with improved indicator detection accuracy and an electronic information device provided with the touch panel system. A touch panel system 1 includes: a touch panel 3 provided with a plurality of electrodes SL, DL; and an indicator position detection unit 5 for detecting a position of the indicator that is in contact with or close to the detection surface P, based on an output signal that is outputted by at least part of the electrodes SL, DL and shows a capacitance formed by the electrode SL. The touch panel system is characterized in that the indicator position detection unit 5 corrects detection sensitivity for each predetermined position within the detection surface P so as to correspond to a pattern of the electrodes SL, DL, and detects the position of the indicator within the detection surface P.
    Type: Application
    Filed: November 7, 2013
    Publication date: October 22, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Manabu YUMOTO, Shunsuke NAGASAWA, Hitoshi AZUMA
  • Patent number: 9104049
    Abstract: A liquid crystal display device includes a first substrate and a second substrate which sandwiches a liquid crystal between itself and the first substrate, wherein the first substrate has thin film transistors and a wiring connection portion in which are formed terminals connected to the thin film transistors, a wiring substrate connected to the terminals is disposed in the wiring connection portion, the second substrate is a plastic substrate, and has an adhesive layer and an inorganic insulating layer formed on top of the adhesive layer, and the adhesive layer covers the wiring connection portion and one portion of the wiring substrate.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: August 11, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hitoshi Azuma, Susumu Sasaki, Tomio Yaguchi, Takao Ebine, Katsuyuu Takahashi, Shoichi Uchino, Akiko Iwata
  • Publication number: 20150166398
    Abstract: A glass cutter is provided which can form, using a wheel, a uniform crack in glass even when a projection or an earlier-formed scribe line is present on the glass. When the wheel is moved on the glass, a fracture layer is formed causing a rib mark to be formed below the fracture layer and a crack to be formed below the rib mark. To cut the glass, the crack is required to be formed uniformly. Applying a force to resist the rotating force of the wheel makes it possible to form a uniform crack even when a projection is present on the glass. This improves glass cutting yield.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Inventors: Susumu SASAKI, Katsunori KUWAKI, Makoto TATEMURA, Hiroyuki TANI, Hitoshi AZUMA, Tomio YAGUCHI, Tatsuo HAMAMOTO, Hideaki ISHIGE, Shuji IWASAKI, Katsuyuu TAKAHASHI
  • Patent number: 8997619
    Abstract: A glass cutter is provided which can form, using a wheel, a uniform crack in glass even when a projection or an earlier-formed scribe line is present on the glass. When the wheel is moved on the glass, a fracture layer is formed causing a rib mark to be formed below the fracture layer and a crack to be formed below the rib mark. To cut the glass, the crack is required to be formed uniformly. Applying a force to resist the rotating force of the wheel makes it possible to form a uniform crack even when a projection is present on the glass. This improves glass cutting yield.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 7, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Susumu Sasaki, Katsunori Kuwaki, Makoto Tatemura, Hiroyuki Tani, Hitoshi Azuma, Tomio Yaguchi, Tatsuo Hamamoto, Hideaki Ishige, Shuji Iwasaki, Katsuyuu Takahashi