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).
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Patent number: 11739501Abstract: 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: GrantFiled: June 8, 2021Date of Patent: August 29, 2023Assignee: KUBOTA CORPORATIONInventor: Hitoshi Azuma
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Patent number: 11674593Abstract: A working vehicle includes: 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: GrantFiled: October 7, 2021Date of Patent: June 13, 2023Assignee: KUBOTA CORPORATIONInventors: Hitoshi Azuma, Michita Kono, Hiroshi Sota
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Patent number: 11388853Abstract: 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: GrantFiled: May 17, 2019Date of Patent: July 19, 2022Assignee: KUBOTA CORPORATIONInventors: Tetsuo Yamaguchi, Yoshihiko Kuroshita, Hitoshi Azuma, Michita Kono, Shinji Ohara
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Publication number: 20220112950Abstract: 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: ApplicationFiled: October 7, 2021Publication date: April 14, 2022Applicant: KUBOTA CORPORATIONInventors: Hitoshi AZUMA, Michita KONO, Hiroshi SOTA
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Patent number: 11268614Abstract: 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: GrantFiled: June 5, 2020Date of Patent: March 8, 2022Assignee: KUBOTA CORPORATIONInventors: Yoshihiko Kuroshita, Tetsuo Yamaguchi, Michita Kono, Hitoshi Azuma, Shinji Ohara
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Patent number: 11248668Abstract: 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: GrantFiled: November 17, 2020Date of Patent: February 15, 2022Assignee: KUBOTA CORPORATIONInventors: Hitoshi Azuma, Tetsuo Yamaguchi, Shinji Ohara
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Patent number: 11247557Abstract: 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: GrantFiled: June 5, 2020Date of Patent: February 15, 2022Assignee: KUBOTA CORPORATIONInventors: Hitoshi Azuma, Tetsuo Yamaguchi, Shinji Ohara, Yoshihiko Kuroshita, Michita Kono
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Publication number: 20210404147Abstract: 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: ApplicationFiled: June 8, 2021Publication date: December 30, 2021Inventor: Hitoshi AZUMA
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Publication number: 20210164561Abstract: 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: ApplicationFiled: November 17, 2020Publication date: June 3, 2021Applicant: KUBOTA CORPORATIONInventors: Hitoshi AZUMA, Tetsuo YAMAGUCHI, Shinji OHARA
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Publication number: 20200391589Abstract: 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: ApplicationFiled: June 5, 2020Publication date: December 17, 2020Inventors: Hitoshi AZUMA, Tetsuo YAMAGUCHI, Shinji OHARA, Yoshihiko KUROSHITA, Michita KONO
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Publication number: 20200393041Abstract: 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: ApplicationFiled: June 5, 2020Publication date: December 17, 2020Inventors: Yoshihiko KUROSHITA, Tetsuo YAMAGUCHI, Michita KONO, Hitoshi AZUMA, Shinji OHARA
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Publication number: 20190373806Abstract: 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: ApplicationFiled: June 11, 2019Publication date: December 12, 2019Applicant: KUBOTA CORPORATIONInventors: Ryo WATAYA, Tsuyoshi GONO, Dai KADOTA, Gen FUTAGAMI, Shinya UKAI, Kazutaka FUJIMOTO, Kazuma ISHIHARA, Susumu TAKEOKA, Kiyokazu FUJIBAYASHI, Tetsuo YAMAGUCHI, Hitoshi AZUMA
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Publication number: 20190350121Abstract: 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: ApplicationFiled: May 17, 2019Publication date: November 21, 2019Applicant: KUBOTA CORPORATIONInventors: Tetsuo YAMAGUCHI, Yoshihiko KUROSHITA, Hitoshi AZUMA, Michita KONO, Shinji OHARA
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Patent number: 10217768Abstract: 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: GrantFiled: May 24, 2017Date of Patent: February 26, 2019Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tomio Yaguchi, Yasushi Nakano, Hitoshi Azuma
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Patent number: 9779674Abstract: 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: GrantFiled: November 7, 2013Date of Patent: October 3, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Manabu Yumoto, Shunsuke Nagasawa, Hitoshi Azuma
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Publication number: 20170263649Abstract: 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: ApplicationFiled: May 24, 2017Publication date: September 14, 2017Inventors: Tomio Yaguchi, Yasushi Nakano, Hitoshi Azuma
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Publication number: 20160306496Abstract: 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: ApplicationFiled: March 31, 2014Publication date: October 20, 2016Applicant: SHARP KABUSHIKI KAISHAInventors: Takashi ISHIKAWA, Hitoshi AZUMA, Makoto ITSUKI
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Patent number: 9458048Abstract: 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: GrantFiled: February 24, 2015Date of Patent: October 4, 2016Assignees: 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
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Publication number: 20150309382Abstract: 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: ApplicationFiled: July 6, 2015Publication date: October 29, 2015Inventors: Hitoshi AZUMA, Susumu SASAKI, Tomio YAGUCHI, Takao EBINE, Katsuyuu TAKAHASHI, Shoichi UCHINO, Akiko IWATA
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Publication number: 20150302810Abstract: 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: ApplicationFiled: November 7, 2013Publication date: October 22, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Manabu YUMOTO, Shunsuke NAGASAWA, Hitoshi AZUMA