Patents by Inventor Go Takaki
Go Takaki 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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Publication number: 20220289073Abstract: A working machine includes a battery unit; an electrical component; a radiator; an electrical-component cooling water channel along which cooling water delivered from an outflow port of the radiator is supplied to the electrical component and, after cooling the electrical component, circulates to an inflow port of the radiator; a switching unit provided on the electrical-component cooling water channel; and a battery cooling water channel along which the cooling water is supplied from the switching unit to the battery unit and, after cooling the battery unit, flows to the electrical-component cooling water channel. The switching unit is switchable between a first state of blocking a flow of the cooling water from the electrical-component cooling water channel to the battery cooling water channel and a second state of causing the cooling water to flow from the electrical-component cooling water channel to the battery cooling water channel.Type: ApplicationFiled: June 3, 2022Publication date: September 15, 2022Applicant: KUBOTA CORPORATIONInventor: Go TAKAKI
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Publication number: 20220275601Abstract: A swiveling working machine includes a swivel base; a working device provided on a front side of the swivel base; a battery unit; an electric motor that is driven by electric power output by the battery unit; and a hydraulic pump that delivers a hydraulic fluid by driving of the electric motor. The battery unit is disposed at a rear portion of the swivel base. The electric motor and the hydraulic pump are disposed sideward of the battery unit side by side in a front-rear direction.Type: ApplicationFiled: May 16, 2022Publication date: September 1, 2022Applicant: KUBOTA CORPORATIONInventors: Teruo KUNIZAWA, Junki ITO, Yoshiaki ARAKI, Takahiro TAKAKI, Go TAKAKI, Akihiro KISHIMOTO
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Patent number: 11283381Abstract: A working machine includes: a first generator having: a rotor to be rotated by power from a PTO shaft; a rotor coil provided to the rotor; and a stator coil to generate electricity when magnetizing current is applied to the rotor coil; a working device to be operated by the electricity generated by the first generator; and a converter device to convert surplus electricity not consumed by the working device into the magnetizing current to be applied to the rotor coil.Type: GrantFiled: June 30, 2020Date of Patent: March 22, 2022Assignee: KUBOTA CORPORATIONInventors: Masaru Kawane, Sumio Yagyu, Takao Nakagawa, Yukifumi Yamanaka, Go Takaki
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Patent number: 11214152Abstract: A working device connected to a traveling vehicle having a prime mover and configured to perform an agricultural work, includes: a working portion to perform an agricultural work; an electric motor to be driven by electric power; a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; a regeneration resistor to consume a regenerative power generated in the electric motor; a switch portion to switch, between a connecting state and a shut-off state, a state established between the electric motor and the regeneration resistor; and a controller portion to control driving of the electric motor and switching of the switch portion.Type: GrantFiled: June 24, 2020Date of Patent: January 4, 2022Assignee: KUBOTA CORPORATIONInventors: Yukifumi Yamanaka, Sumio Yagyu, Go Takaki
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Publication number: 20200336092Abstract: A working machine includes: a first generator having: a rotor to be rotated by power from a PTO shaft; a rotor coil provided to the rotor; and a stator coil to generate electricity when magnetizing current is applied to the rotor coil; a working device to be operated by the electricity generated by the first generator; and a converter device to convert surplus electricity not consumed by the working device into the magnetizing current to be applied to the rotor coil.Type: ApplicationFiled: June 30, 2020Publication date: October 22, 2020Applicant: KUBOTA CORPORATIONInventors: Masaru KAWANE, Sumio YAGYU, Takao NAKAGAWA, Yukifumi YAMANAKA, Go TAKAKI
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Publication number: 20200329632Abstract: A spraying support system for a working machine, includes: a support device including a plan creator portion to create a spraying plan representing a relation between field information relating to a field to which spray substance is sprayed and spraying information including spraying amount of the spray substance; a plan obtainer device provided to a working machine having a sprayer device to spray the spray substance and configured to obtain the spraying plan created by the plan creator portion; and a spraying controller device to control a sprayer portion of the sprayer device based on the spraying information of the spraying plan obtained by the plan obtainer device.Type: ApplicationFiled: June 30, 2020Publication date: October 22, 2020Applicant: KUBOTA CORPORATIONInventors: Sumio YAGYU, Takao NAKAGAWA, Masaru KAWANE, Yukifumi YAMANAKA, Go TAKAKI
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Publication number: 20200323127Abstract: A working device to be connected to a traveling vehicle having a prime mover, the working device being configured to perform an agricultural work, includes a working portion to rotate to perform an agricultural work, an electric motor to be driven by electric power, a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; and a regeneration resistor to consume a regenerative power generated in the electric motor, the regeneration resistor being arranged at a position to be cooled by wind generated by rotation of the working portion.Type: ApplicationFiled: June 25, 2020Publication date: October 15, 2020Applicant: KUBOTA CORPORATIONInventors: Go TAKAKI, Sumio YAGYU, Yukifumi YAMANAKA
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Publication number: 20200315084Abstract: A generator unit to be attached to a traveling vehicle that has a prime mover and a PTO shaft to transmit power from the prime mover, includes: a generator; an input shaft having: a first connector portion configured to be connected to the PTO shaft; and a second connector portion configured to be connected to a working device to be connected to the traveling vehicle; a transmitter mechanism to transmit, to the generator, power supplied from the PTO shaft, the power being inputted from the first connector portion to the input shaft; and an attachment frame having: an attachment portion to which the generator, the input shaft, and the transmitter mechanism are attached; and a mounting portion configured to be mounted to the traveling vehicle.Type: ApplicationFiled: June 24, 2020Publication date: October 8, 2020Applicant: KUBOTA CORPORATIONInventors: Sumio YAGYU, Takashi UCHIDA, Yukifumi YAMANAKA, Go TAKAKI
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Publication number: 20200317066Abstract: A working device connected to a traveling vehicle having a prime mover and configured to perform an agricultural work, includes: a working portion to perform an agricultural work; an electric motor to be driven by electric power; a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; a regeneration resistor to consume a regenerative power generated in the electric motor; a switch portion to switch, between a connecting state and a shut-off state, a state established between the electric motor and the regeneration resistor; and a controller portion to control driving of the electric motor and switching of the switch portion.Type: ApplicationFiled: June 24, 2020Publication date: October 8, 2020Applicant: KUBOTA CORPORATIONInventors: Yukifumi YAMANAKA, Sumio YAGYU, Go TAKAKI
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Patent number: 10639983Abstract: A work vehicle includes an assist motor that is located opposite an engine with respect to a continuously variable transmission device. The assist motor has an output shaft that extends coaxially with a drive shaft of the continuously variable transmission device and is interlocked with the drive shaft. A motor support platform that supports the assist motor protrudes more outward than the continuously variable transmission device does in a lateral direction relative to a vehicle body. The motor support platform includes a slide movement mechanism, and the slide movement mechanism is configured to change the position at which the assist motor is attached, relative to the continuously variable transmission device, axially of the drive shaft, between a connected position and a disconnected position of the drive shaft and the output shaft.Type: GrantFiled: December 15, 2017Date of Patent: May 5, 2020Assignee: Kubota CorporationInventors: Go Takaki, Takahito Matsumori, Shunsuke Miyashita, Yukifumi Yamanaka, Masatoshi Sakai
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Patent number: 10179506Abstract: A hybrid vehicle includes an engine, a motor, and a belt stepless speed changer device having a driving rotary body, a driven rotary body, a first shaft member supporting the driving rotary body with allowing rotation thereof in unison, a second shaft member supporting the driven rotary body with allowing rotation thereof in unison, and an endless belt wound around the driving rotary body and the driven rotary body. The vehicle further includes a transmission case configured to receive the powers from the engine and the motor via the belt stepless speed changer device and a centrifugal clutch incorporated in a power transmission line extending form the engine to the first shaft member. The motor is disposed on the side opposite the engine across the driving rotary body, and the driving power of the motor is inputted to the first shaft member.Type: GrantFiled: October 27, 2016Date of Patent: January 15, 2019Assignee: Kubota CorporationInventors: Sumio Yagyu, Go Takaki, Shinichi Kawabata, Shigeki Hayashi, Shohei Nakai, Hiroki Bessho
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Patent number: 10113625Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: GrantFiled: January 4, 2018Date of Patent: October 30, 2018Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Publication number: 20180264928Abstract: A work vehicle includes an assist motor that is located opposite an engine with respect to a continuously variable transmission device. The assist motor has an output shaft that extends coaxially with a drive shaft of the continuously variable transmission device and is interlocked with the drive shaft. A motor support platform that supports the assist motor protrudes more outward than the continuously variable transmission device does in a lateral direction relative to a vehicle body. The motor support platform includes a slide movement mechanism, and the slide movement mechanism is configured to change the position at which the assist motor is attached, relative to the continuously variable transmission device, axially of the drive shaft, between a connected position and a disconnected position of the drive shaft and the output shaft.Type: ApplicationFiled: December 15, 2017Publication date: September 20, 2018Inventors: Go Takaki, Takahito Matsumori, Shunsuke Miyashita, Yukifumi Yamanaka, Masatoshi Sakai
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Patent number: 10023039Abstract: A work vehicle comprises: a vehicle frame; a driving portion in which a driver seat is provided; an electric motor for driving the vehicle to travel; and a battery for supplying electric power to the electric motor, the battery including a plurality of battery modules accommodated in a single battery pack. Each of the battery modules is formed as a rectangular box whose longitudinal length is different from its lateral length in a planar view, and the battery modules are arranged adjacent to each other with a short side of one of the battery modules opposing a long side of the other of the battery modules. The battery pack is also formed to conform to the contour of the aggregate of the battery modules.Type: GrantFiled: December 9, 2016Date of Patent: July 17, 2018Assignee: Kubota CorporationInventors: Go Takaki, Yukifumi Yamanaka
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Publication number: 20180142770Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: ApplicationFiled: January 4, 2018Publication date: May 24, 2018Inventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Patent number: 9897185Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: GrantFiled: January 20, 2016Date of Patent: February 20, 2018Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Publication number: 20170246942Abstract: A work vehicle comprises: a vehicle frame; a driving portion in which a driver seat is provided; an electric motor for driving the vehicle to travel; and a battery for supplying electric power to the electric motor, the battery including a plurality of battery modules accommodated in a single battery pack. Each of the battery modules is formed as a rectangular box whose longitudinal length is different from its lateral length in a planar view, and the battery modules are arranged adjacent to each other with a short side of one of the battery modules opposing a long side of the other of the battery modules. The battery pack is also formed to conform to the contour of the aggregate of the battery modules.Type: ApplicationFiled: December 9, 2016Publication date: August 31, 2017Inventors: Go Takaki, Yukifumi Yamanaka
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Publication number: 20170043658Abstract: A hybrid vehicle includes an engine, a motor, and a belt stepless speed changer device having a driving rotary body, a driven rotary body, a first shaft member supporting the driving rotary body with allowing rotation thereof in unison, a second shaft member supporting the driven rotary body with allowing rotation thereof in unison, and an endless belt wound around the driving rotary body and the driven rotary body. The vehicle further includes a transmission case configured to receive the powers from the engine and the motor via the belt stepless speed changer device and a centrifugal clutch incorporated in a power transmission line extending form the engine to the first shaft member. The motor is disposed on the side opposite the engine across the driving rotary body, and the driving power of the motor is inputted to the first shaft member.Type: ApplicationFiled: October 27, 2016Publication date: February 16, 2017Inventors: Sumio Yagyu, Go Takaki, Shinichi Kawabata, Shigeki Hayashi, Shohei Nakai, Hiroki Bessho
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Patent number: 9511761Abstract: A hybrid vehicle includes an engine, a motor, and a belt stepless speed changer device having a driving rotary body, a driven rotary body, a first shaft member supporting the driving rotary body with allowing rotation thereof in unison, a second shaft member supporting the driven rotary body with allowing rotation thereof in unison, and an endless belt wound around the driving rotary body and the driven rotary body. The vehicle further includes a transmission case configured to receive the powers from the engine and the motor via the belt stepless speed changer device and a centrifugal clutch incorporated in a power transmission line extending form the engine to the first shaft member. The motor is disposed on the side opposite the engine across the driving rotary body, and the driving power of the motor is inputted to the first shaft member.Type: GrantFiled: September 11, 2013Date of Patent: December 6, 2016Assignee: Kubota CorporationInventors: Sumio Yagyu, Go Takaki, Shinichi Kawabata, Shigeki Hayashi, Shohei Nakai, Hiroki Bessho
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Publication number: 20160138693Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: ApplicationFiled: January 20, 2016Publication date: May 19, 2016Inventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi