Patents by Inventor Tomohisa Yamamoto
Tomohisa Yamamoto 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: 11942819Abstract: A control device includes an electric motor, a battery, a capacitor, a power source selection portion, a determination unit configured to determine whether the battery is normal, and a control unit configured to select, as a control mode of the electric motor, one of a first mode and a second mode in which a power consumption amount of the electric motor is reduced as compared to when the electric motor is driven in the first mode, and drive the electric motor in the selected control mode. When the battery is transitioned from a state of being determined to be normal to a state of being determined to be not normal, the control unit switches the control mode from the first mode to the second mode and then makes the power source selection portion select the capacitor.Type: GrantFiled: March 24, 2021Date of Patent: March 26, 2024Assignee: ADVICS CO., LTD.Inventors: Keisuke Yamamoto, Tomohisa Ozeki
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Publication number: 20230118123Abstract: A construction material includes a base material. The base material includes a low-gloss region having a 60° gloss value of smaller than and a high-gloss region having a 60° gloss value of larger than or equal to 8. The 60° gloss value of the low-gloss region and the 60° gloss value of the high-gloss region are different from each other by 5 or greater.Type: ApplicationFiled: January 29, 2021Publication date: April 20, 2023Inventors: Nobuchika OKAYAMA, Hideo AIKAWA, Tomohisa YAMAMOTO, Ryoko MARUYAMA, Arisa MIYAKE
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Patent number: 11608776Abstract: In a tractor, a radiator is arranged on one front-rear side relative to an engine. A cooling fan is provided between the radiator and an engine. A fan drive belt is wound around a fan support shaft and around an output shaft of the engine extending below the fan support shaft. A compressor is located above the output shaft and is supported to the engine at a position offset to one lateral side of the engine relative to the fan support shaft. A compressor drive belt is wound around the output shaft and a compressor drive shaft. The compressor drive belt is located on a side where the compressor is located relative to the fan support shaft, when viewed in a front-rear direction.Type: GrantFiled: October 14, 2020Date of Patent: March 21, 2023Assignee: Kubota CorporationInventors: Hiroki Nagai, Sachiko Tsujimori, Tomohisa Yamamoto, Taisuke Hashimoto, Kunihiro Yoneguchi
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Patent number: 11564347Abstract: A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((?d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((?a)).Type: GrantFiled: September 22, 2020Date of Patent: January 31, 2023Assignee: Kubota CorporationInventors: Kazuyoshi Kawamoto, Eiji Sato, Yuta Horibe, Takashi Kumashiro, Tomohisa Yamamoto, Akihito Mihara
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Patent number: 11414035Abstract: A tractor includes a protective frame including a lower frame and an upper frame rotatably coupled with an upper portion of the lower frame, and an assist mechanism to assists a rotation of the upper frame.Type: GrantFiled: June 6, 2019Date of Patent: August 16, 2022Assignee: KUBOTA CORPORATIONInventors: Masanori Azuma, Terumasa Kobayashi, Hiroki Nagai, Tomohisa Yamamoto
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Patent number: 11371611Abstract: There is provided a seal member for a bearing comprising a molded rubber article and a core metal, wherein the molded rubber article is produced by vulcanization-molding a rubber composition comprising 100 parts by mass of a rubber (A) containing an acrylic acid ester as a main component, 1 to 30 parts by mass of a carbon material (B), and 10 to 100 parts by mass of a carbon black (C) having a DBP oil absorption of 20 mL/100 g or more and less than 150 mL/100 g; the carbon material (B) is a carbon nanotube (B1) or a carbon black (B2) having a DBP oil absorption of 150 mL/100 g or more and 1000 mL/100 g or less; and a volume resistivity of the molded rubber article is 1×106 ?·cm or less.Type: GrantFiled: March 9, 2020Date of Patent: June 28, 2022Assignee: UCHIYAMA MANUFACTURING CORP.Inventors: Keiko Ikeda, Yoshihiko Yamaguchi, Tomohisa Yamamoto, Tatsuo Katayama
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Publication number: 20220119652Abstract: There is provided a decorative sheet composed of a multilayer structure having an intermediate layer and a protective layer on a surface of a cork sheet, wherein a decolorized cork layer is formed on the surface of the cork sheet in contact with the intermediate layer; the intermediate layer is a coated film formed by drying an aqueous emulsion; the protective layer comprises an ultraviolet absorbing layer made of a resin composition containing an ultraviolet absorbing agent; and the surface of the protective layer is a design surface. Such a decorative sheet has excellent light resistance and fastness to rubbing, and also maintains an appearance peculiar to cork.Type: ApplicationFiled: October 15, 2021Publication date: April 21, 2022Applicant: UCHIYAMA MANUFACTURING CORP.Inventors: Mari KAWATA, Tomohisa YAMAMOTO, Kazuhiro SHIMIZU, Yuki NISHIYAMA
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Publication number: 20210387587Abstract: A tractor includes a protective frame including a lower frame and an upper frame rotatably coupled with an upper portion of the lower frame, and an assist mechanism to assists a rotation of the upper frame.Type: ApplicationFiled: June 6, 2019Publication date: December 16, 2021Inventors: Masanori AZUMA, Terumasa KOBAYASHI, Hiroki NAGAI, Tomohisa YAMAMOTO
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Publication number: 20210180513Abstract: In a tractor, a radiator is arranged on one front-rear side relative to an engine. A cooling fan is provided between the radiator and an engine. A fan drive belt is wound around a fan support shaft and around an output shaft of the engine extending below the fan support shaft. A compressor is located above the output shaft and is supported to the engine at a position offset to one lateral side of the engine relative to the fan support shaft. A compressor drive belt is wound around the output shaft and a compressor drive shaft. The compressor drive belt is located on a side where the compressor is located relative to the fan support shaft, when viewed in a front-rear direction.Type: ApplicationFiled: October 14, 2020Publication date: June 17, 2021Inventors: Hiroki Nagai, Sachiko Tsujimori, Tomohisa Yamamoto, Taisuke Hashimoto, Kunihiro Yoneguchi
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Patent number: 10933920Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: GrantFiled: May 29, 2019Date of Patent: March 2, 2021Assignee: Kubota CorporationInventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Publication number: 20210000007Abstract: A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((?d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((?a)).Type: ApplicationFiled: September 22, 2020Publication date: January 7, 2021Inventors: Kazuyoshi Kawamoto, Eiji Sato, Yuta Horibe, Takashi Kumashiro, Tomohisa Yamamoto, Akihito Mihara
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Patent number: 10820492Abstract: A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((?d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((?a)).Type: GrantFiled: November 29, 2017Date of Patent: November 3, 2020Assignee: Kubota CorporationInventors: Kazuyoshi Kawamoto, Eiji Sato, Yuta Horibe, Takashi Kumashiro, Tomohisa Yamamoto, Akihito Mihara
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Publication number: 20200300363Abstract: There is provided a seal member for a bearing comprising a molded rubber article and a core metal, wherein the molded rubber article is produced by vulcanization-molding a rubber composition comprising 100 parts by mass of a rubber (A) containing an acrylic acid ester as a main component, 1 to 30 parts by mass of a carbon material (B), and 10 to 100 parts by mass of a carbon black (C) having a DBP oil absorption of 20 mL/100 g or more and less than 150 mL/100 g; the carbon material (B) is a carbon nanotube (B1) or a carbon black (B2) having a DBP oil absorption of 150 mL/100 g or more and 1000 mL/100 g or less; and a volume resistivity of the molded rubber article is 1×106 ?·cm or less.Type: ApplicationFiled: March 9, 2020Publication date: September 24, 2020Applicant: UCHIYAMA MANUFACTURING CORP.Inventors: Keiko IKEDA, Yoshihiko YAMAGUCHI, Tomohisa YAMAMOTO, Tatsuo KATAYAMA
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Patent number: 10703026Abstract: An objective of the present invention is to provide a method for producing a cork stopper by compression molding cork grains, which can provide a cork stopper excellent in sealability and safety. There is provided a method for producing a cork stopper, comprising: mixing cork grains and an adhesive; compression molding the mixture to give an intermediate; and then heating the intermediate to expand the cork grains.Type: GrantFiled: September 18, 2018Date of Patent: July 7, 2020Assignee: UCHIYAMA MANUFACTURING CORP.Inventors: Akihiro Anabuki, Tatsuo Katayama, Tomohisa Yamamoto
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Publication number: 20200178461Abstract: A work unit to be attached to a lower side of a work vehicle that includes a wheel includes a work portion, a housing that covers the work portion, a bridge portion that is provided above the housing, auxiliary plates that change their positions between a state of being housed in the bridge portion and a state of protruding from the bridge portion, a linkage mechanism that is provided in the bridge portion and is connected to the auxiliary plates, and an operation tool for operating the linkage mechanism. As a result of operating the operation tool, the linkage mechanism is folded or unfolded, and positions of the auxiliary plates are changed between the state of being housed in the bridge portion and the state of protruding from the bridge portion.Type: ApplicationFiled: November 7, 2019Publication date: June 11, 2020Inventors: Tomohisa Yamamoto, Tatsuro Tokunaga, Ryo Matsumoto, Akihito Mihara, Ryusuke Kawamoto, Terumasa Kobayashi, Hiroki Nagai, Toshiki Kanai, Ryotaro Nakatsu, Yuto Akai, Seiya Sato, Nobuyuki Yamashita
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Patent number: 10480156Abstract: A work vehicle includes a riding-type traveling vehicle body and a hydraulically operable front loader coupled to a front of the traveling vehicle body. The traveling vehicle body includes left and right rear wheels disposed to the left and right of a driver seat, left and right rear fenders covering the left and right rear wheels, a valve unit for the front loader and an operating lever for the front loader. The valve unit is disposed in a space between the rear wheel and the rear fender on one of left and right sides, and the operating lever extends from the space, upward of the rear fender on the one of the left and right sides.Type: GrantFiled: December 7, 2016Date of Patent: November 19, 2019Assignee: Kubota CorporationInventors: Hiroki Nagai, Tomohisa Yamamoto, Masayuki Akita, Shoichiro Nagaishi, Koichiro Matsumoto, Nobuyuki Yamashita, Ryo Matsumoto, Azusa Furihata, Masahiro Izumi
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Publication number: 20190276090Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Inventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Patent number: 10377219Abstract: A tractor includes an engine that is mounted on a vehicle body frame, a hood that houses the engine and is configured to pivot about a front pivot in a top-bottom direction between a closed position at which the hood covers the engine, and an open position at which the hood exposes the engine, a mounting rubber that is provided between the engine and the vehicle body frame to support the engine in an anti-vibration manner, and a hood stay that supports the hood such that the hood is pivotable up/down about the front pivot. The hood stay includes an abutting-target portion against which the engine can abut from a rear side, to prevent the engine from swinging forward in a front-rear direction of the vehicle body.Type: GrantFiled: May 26, 2017Date of Patent: August 13, 2019Assignee: Kubota CorporationInventors: Tasuku Teraoka, Takeshi Komorida, Takashi Kumashiro, Shoichiro Nagaishi, Tomohisa Yamamoto, Akihito Mihara, Ryo Matsumoto, Hiroki Nagai, Yuto Akai, Yoshihisa Tonoya, Masaki Takaoka, Tatsuki Kago, Nobuyuki Yamashita, Junichi Yamanaka, Masahiro Izumi, Azusa Furihata, Koichiro Matsumoto, Takashi Shibata
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Patent number: 10336377Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: GrantFiled: November 8, 2016Date of Patent: July 2, 2019Assignee: Kubota CorporationInventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Patent number: 10315534Abstract: Provided is a work vehicle having a rollover protection structure (ROPS) around a driver's seat which is switchable between a front seating posture and a rear seating posture. A locking mechanism locks the driver's seat to the rear seating posture. The locking mechanism includes a hook provided on the driver's seat side, a hook rod disposed between a left strut and a right strut and engageable with the hook when the driver's seat is switched to the rear seating posture, and a rod bracket for supporting the hook rod. The rod bracket is provided separately from the left strut and the right strut.Type: GrantFiled: June 2, 2017Date of Patent: June 11, 2019Assignee: Kubota CorporationInventors: Takashi Shibata, Shoichiro Nagaishi, Tomohisa Yamamoto, Takeshi Komorida, Takashi Kumashiro, Azusa Furihata, Akihito Mihara, Tatsuki Kago, Yoshihisa Tonoya