Patents by Inventor Kenichi Iwami
Kenichi Iwami 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: 20250107477Abstract: A work vehicle includes a fuel cell module including a fuel cell stack, a motor connected to the fuel cell module, a travel device to be driven by the motor, a controller configured or programmed to control the motor, and a positioning system. The controller is configured or programmed to change a manner of stopping the motor when a travel stop command is issued during motor operation, depending on whether a position of the work vehicle identified by the positioning system is within a field or not. The controller is configured or programmed to make a time from when the travel stop command is issued until the motor stops shorter when the position of the work vehicle is within the field than when the position of the work vehicle is outside the field.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Yosuke HAYASHI, Yuki MINAMIDE, Tomoyoshi SAKANO, Takahiro TAKAKI, Kenichi IWAMI, Kodai AMITANI, Go TAKAKI
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Publication number: 20250108704Abstract: A work vehicle includes a fuel cell, and a fuel tank module including fuel tanks to store fuel to be supplied to the fuel cell, a valve system connected to the fuel tanks, and a tank case housing the fuel tanks and the valve system. The fuel tanks include a first fuel tank with a first length in a first direction, and second fuel tank with a second length shorter than the first length in the first direction. The first fuel tank and the second fuel tank are arranged in a second direction perpendicular or substantially perpendicular to the first direction. At least a portion of the valve system is in a space between the second fuel tank and the tank case inside the tank case.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI, Teppei OHNISHI, Atsushi MORITA, Isamu KAZAMA, Kenshiro MATSUI, Kenji ISHIHARA
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Publication number: 20250108684Abstract: A work vehicle includes a fuel cell module including a fuel cell stack and a coolant pump, at least one fuel tank to store fuel to be supplied to the fuel cell stack, a motor connected to the fuel cell module, a vehicle frame supporting the fuel cell module, the at least one fuel tank, and the motor, the vehicle frame rotatably supporting front and rear wheels, and a cooling system to circulate coolant via the coolant pump. The cooling system includes a first radiator positioned on one side of the fuel cell module, and a second radiator positioned on another side of the fuel cell module.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI
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Publication number: 20250108705Abstract: An agricultural work vehicle includes a fuel cell power generation system, a first voltage conversion circuit to convert a voltage output from the fuel cell power generation system to output a first voltage, and a second voltage conversion circuit to convert the voltage output from the fuel cell power generation system to output a second voltage higher than the first voltage.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI, Teppei OHNISHI, Atsushi MORITA, Isamu KAZAMA, Kenshiro MATSUI, Kenji ISHIHARA
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Publication number: 20250108709Abstract: A work vehicle includes a fuel cell power generation system, an inverter connected to the fuel cell power generation system, a motor connected to the inverter, and a vehicle frame supporting the fuel cell power generation system, the inverter, and the motor, the vehicle frame rotatably supporting left and right front wheels and left and right rear wheels. The vehicle frame includes a transmission case housing a transmission to transmit driving force from the motor to the rear wheels. The inverter is at a side of the transmission case.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI, Teppei OHNISHI, Atsushi MORITA, Isamu KAZAMA, Kenshiro MATSUI, Kenji ISHIHARA
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Publication number: 20250108706Abstract: A work vehicle includes a driver seat, a fuel cell, at least one fuel tank to store fuel to be supplied to the fuel cell, a motor connected to the fuel cell, a vehicle frame supporting the driver seat, the fuel cell, and the motor, a mounting frame fixed to the vehicle frame to support the at least one fuel tank, the mounting frame extending across the driver seat, and a front housing covering the fuel cell and being openable and closable. The mounting frame does not interfere with the front housing when a position or orientation of the front housing changes from the closed state to the open state.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI, Teppei OHNISHI, Atsushi MORITA, Isamu KAZAMA, Kenshiro MATSUI, Kenji ISHIHARA
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Publication number: 20250108703Abstract: A work vehicle includes a fuel cell module including a fuel cell stack, at least one fuel tank to store fuel to be supplied to the fuel cell stack, a sensor to measure a remaining amount of fuel in the at least one fuel tank, a motor connected to the fuel cell module, a power take-off shaft driven by the motor and to which an implement is connected, a display, and a processor configured or programmed to estimate, based on the measured remaining amount of fuel and a type of the implement connected to the power take-off shaft and/or a type of work performed by the implement, at least one of a travelable distance, a travelable area, or a travelable time with the work, and to display an estimation result on the display.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Kodai AMITANI, Kenichi IWAMI, Tomoyoshi SAKANO, Go TAKAKI, Yuki MINAMIDE, Takahiro TAKAKI, Yosuke HAYASHI
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Publication number: 20250108707Abstract: A work vehicle includes a driver seat, a fuel cell, at least one fuel tank to store fuel to be supplied to the fuel cell, a motor connected to the fuel cell, a vehicle frame that supports the driver seat, the fuel cell, and the motor, and a mounting frame fixed to the vehicle frame to support the fuel tank, the mounting frame being positioned across the driver seat.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI
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Publication number: 20250108711Abstract: A work vehicle includes a fuel cell module including a fuel cell stack, at least one fuel tank to store fuel to be supplied to the fuel cell stack, a motor connected to the fuel cell module, a vehicle frame that supports the fuel cell module, the at least one fuel tank, and the motor, the vehicle frame rotatably supporting left and right front wheels and left and right rear wheels, and an electrical circuit module housed in a casing and electrically connected to the fuel cell module and the motor. The electrical circuit module is fixed to either a left side of the vehicle frame, between the left front wheel and the left rear wheel, or a right side of the vehicle frame between the right front wheel and the right rear wheel.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Go TAKAKI, Takahiro TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI
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Publication number: 20250108708Abstract: A work vehicle includes a fuel cell, at least one fuel tank to store fuel to be supplied to the fuel cell, a motor connected to the fuel cell, a vehicle frame supporting the fuel cell, the fuel tank, and the motor, the vehicle frame rotatably supporting front and rear wheels, at least one enclosure housing the fuel cell and the fuel tank, and at least one fuel gas sensor inside the enclosure.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Inventors: Takahiro TAKAKI, Go TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Yuki MINAMIDE, Kodai AMITANI, Yosuke HAYASHI
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Publication number: 20250100373Abstract: A work vehicle includes a fuel cell, at least one fuel tank to store fuel to be supplied to the fuel cell, a motor connected to the fuel cell, a vehicle frame that rotatably supports front wheels and rear wheels, and a fueling port connected to the at least one fuel tank via piping. The fueling port is provided at a position higher than an axle of the front wheels.Type: ApplicationFiled: December 5, 2024Publication date: March 27, 2025Inventors: Yuki MINAMIDE, Go TAKAKI, Kenichi IWAMI, Tomoyoshi SAKANO, Takahiro TAKAKI, Kodai AMITANI, Yosuke HAYASHI
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Patent number: 12245548Abstract: Provided is a harvester configured to effect a work-performing traveling for harvesting agricultural products in a field while traveling in the field autonomously. This harvester includes a traveling device effecting the work-performing traveling, a machine body supported to the traveling device, a harvesting section supported to a front portion of the machine body and harvesting the products in the field, an imaging device provided at a front portion of the machine body and at a position higher than the harvesting section so as to view down a product present in an un-worked area located forwardly of the harvesting section, a detecting section detecting abnormality in the field from an image imaged by the imaging device, and a controlling section executing an abnormality situation control as a control in accordance with the abnormality detected in the field.Type: GrantFiled: April 24, 2020Date of Patent: March 11, 2025Assignee: Kubota CorporationInventors: Shunsuke Edo, Kenichi Iwami, Shunsuke Miyashita, Takashi Nakabayashi
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Patent number: 12223739Abstract: An obstacle detection system for an agricultural work vehicle includes: an obstacle estimation unit that estimates a region in a field based on a detection signal from an obstacle sensor in which region an obstacle is present, and outputs obstacle present region information; an image capturing unit that outputs a captured image of the field; an obstacle detection unit that detects the obstacle from an input image and outputs obstacle detection information; and an image preprocessing unit that generates, as an image to be input to the obstacle detection unit, a trimmed image obtained by trimming the captured image so as to include the region in which the obstacle is present, based on the obstacle present region information and shooting-angle-of-view information regarding the image capturing unit.Type: GrantFiled: May 20, 2020Date of Patent: February 11, 2025Assignee: Kubota CorporationInventors: Shunsuke Edo, Kenichi Iwami, Shunsuke Miyashita
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Patent number: 12190602Abstract: Provided is a working vehicle capable of operation and driving that includes a plurality of image capture devices 4 that capture an image of surroundings of a vehicle body; a direction detection unit 51 that detects an advancement direction of the operation and driving; an image selection unit 52 that acquires, as a detection image, a surrounding area image captured by one image capture device 4 of the plurality of image capture devices 4 capturing a front advancement direction detected by the direction detection unit 51; and a detection unit 53 that analyzes the detection image acquired by the image selection unit 52 and detects an obstacle.Type: GrantFiled: May 20, 2020Date of Patent: January 7, 2025Assignee: Kubota CorporationInventors: Takashi Nakabayashi, Toshiki Watanabe, Shunsuke Edo, Shunsuke Miyashita, Kenichi Iwami
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Patent number: 12032346Abstract: A control system includes one or a plurality of functional units, and a control device for exchanging communication data transmitted circularly among the functional units. The control device selects, in accordance with an instruction from a user or in accordance with a predetermined condition, one transfer system of a first transfer system in which a computation processing unit transfers the communication data and a second transfer system in which a DMA controller transfers the communication data.Type: GrantFiled: October 24, 2019Date of Patent: July 9, 2024Assignee: OMRON CorporationInventor: Kenichi Iwami
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Patent number: 11760293Abstract: A tractor includes: a driver seat on which a driver can sit; a hood 5 provided in front of the driver seat; and an antenna unit that receives satellite positioning information. When viewed from the front, an upper end portion of a ROPS and at least part of the antenna unit overlap with each other.Type: GrantFiled: December 14, 2018Date of Patent: September 19, 2023Assignee: Kubota CorporationInventors: Kumiko Kobayashi, Misako Kawai, Kunihiko Nishino, Yasuaki Morioka, Shunsuke Miyashita, Yuki Kubota, Manabu Togo, Kenichi Iwami, Hiroki Suga, Toru Tambo
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Patent number: 11726485Abstract: This autonomous work vehicle travel system is provided with: a satellite positioning module 80 that outputs positioning data indicating a vehicle position of a work vehicle 1; an area setting unit that sets an area CA to be worked in a work site; a route managing unit that calculates a travel route element set, which is an aggregate of multiple travel route elements constituting a travel route that covers the area CA to be worked, and storing the travel route element set so as to be readable; a route element selecting unit that selects a next travel route element to be traveled in sequence from the travel route element set; and an autonomous travel controlling unit that causes the work vehicle 1 to travel autonomously on the basis of the next travel route element and the vehicle position.Type: GrantFiled: June 28, 2017Date of Patent: August 15, 2023Assignee: Kubota CorporationInventors: Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
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Patent number: 11713078Abstract: A working vehicle includes a steering device including a steering handle, a vehicle body to travel with either manual steering by the steering handle or automatic steering of the steering handle based on a traveling reference traveling line, and a controller to permit automatic steering based on steering angles of the steering device obtained when the vehicle body travels a predetermined distance while being steered by the manual steering.Type: GrantFiled: December 24, 2020Date of Patent: August 1, 2023Assignee: KUBOTA CORPORATIONInventors: Shunsuke Miyashita, Toru Tambo, Kenichi Iwami, Hiroki Suga, Yasuaki Morioka, Kunihiko Nishino, Kumiko Kobayashi, Misako Kawai
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Patent number: 11650599Abstract: A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in a satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in an inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in a hybrid navigation system to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information upon obtaining the straight-traveling and to output the first positioning information and/or the second positioning information upon obtaining the turning.Type: GrantFiled: November 30, 2020Date of Patent: May 16, 2023Assignee: KUBOTA CORPORATIONInventors: Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
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Publication number: 20220346315Abstract: A harvesting machine includes: a machine main body 1; a harvesting unit 15 that is provided forward of the machine main body 1 and is capable of swinging upward and downward relative to the machine main body 1; a height detection unit that is capable of detecting a height position H at which the harvesting unit 15 is located; and an obstacle detection unit that is capable of detecting an obstacle that is located forward thereof in a travel direction.Type: ApplicationFiled: April 24, 2020Publication date: November 3, 2022Inventors: Shunsuke Edo, Kenichi Iwami, Shunsuke Miyashita