Patents by Inventor Katsuyuki KIRITA
Katsuyuki KIRITA 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: 11964555Abstract: A work vehicle including a drive device (10) having an internal combustion engine (12) for driving a vehicle body (1) has: a first tank (32) that is disposed in front of or behind the drive device, and stores fuel (9) to be supplied to the internal combustion engine; a second tank (34) that is disposed below the drive device so as to be separated from the first tank by a predetermined distance, and stores the fuel to be supplied to the internal combustion engine; a first storage amount detection part (70) that is disposed in the first tank, and detects an amount of the fuel stored in the first tank; and a second storage amount detection part (80) that is disposed in the second tank, and detects an amount of the fuel stored in the second tank.Type: GrantFiled: August 5, 2019Date of Patent: April 23, 2024Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Katsuyuki Kirita, Masamichi Tanaka, Yuuto Abe
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Patent number: 11325465Abstract: A work vehicle including a tank (31,131) formed so as to extend from a rear part of a vehicle body toward a center, wherein the tank includes: a first storage tank (32) located on the rear side of the vehicle body, and stores stored fluid (9); a second storage tank (34) located on a side close to the center in the front-rear direction of the vehicle body, and stores the fluid; a partition part (36) that separates the first storage tank and the second storage tank; a discharge member (49) that has a discharge opening (49a) extending and opened inside the second storage tank, and discharges, from the second storage tank, the fluid stored in the second storage tank; and a hollow tube member (60) that has a first end communicated with the first storage tank through the partition part so as to enable the stored fluid to flow, and a second end having a hollow tube opening (62) extending and opened toward the center of the vehicle body inside the second storage tank, wherein the hollow tube opening of the hollow tubType: GrantFiled: February 15, 2019Date of Patent: May 10, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Katsuyuki Kirita, Masamichi Tanaka, Yuuto Abe
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Patent number: 11312230Abstract: A work vehicle including: a drive device that has an internal combustion engine for driving a vehicle body; a first tank for storing fuel to be supplied to the internal combustion engine; and a second tank for storing fuel to be supplied to the internal combustion engine; wherein the first tank is disposed in front of or behind the drive device, and the second tank is disposed below the drive device so as to be separated from the first tank by a predetermined distance.Type: GrantFiled: February 15, 2019Date of Patent: April 26, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Katsuyuki Kirita, Masamichi Tanaka, Yuuto Abe
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Publication number: 20210252970Abstract: A work vehicle including a drive device (10) having an internal combustion engine (12) for driving a vehicle body (1) has: a first tank (32) that is disposed in front of or behind the drive device, and stores fuel (9) to be supplied to the internal combustion engine; a second tank (34) that is disposed below the drive device so as to be separated from the first tank by a predetermined distance, and stores the fuel to be supplied to the internal combustion engine; a first storage amount detection part (70) that is disposed in the first tank, and detects an amount of the fuel stored in the first tank; and a second storage amount detection part (80) that is disposed in the second tank, and detects an amount of the fuel stored in the second tank.Type: ApplicationFiled: August 5, 2019Publication date: August 19, 2021Applicant: Hitachi Construction Machinery Co., Ltd.Inventors: Katsuyuki KIRITA, Masamichi TANAKA, Yuuto ABE
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Publication number: 20210070166Abstract: A work vehicle including: a drive device that has an internal combustion engine for driving a vehicle body; a first tank for storing fuel to be supplied to the internal combustion engine; and a second tank for storing fuel to be supplied to the internal combustion engine; wherein the first tank is disposed in front of or behind the drive device, and the second tank is disposed below the drive device so as to be separated from the first tank by a predetermined distance.Type: ApplicationFiled: February 15, 2019Publication date: March 11, 2021Inventors: Katsuyuki KIRITA, Masamichi TANAKA, Yuuto ABE
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Publication number: 20210070168Abstract: A work vehicle including a tank (31,131) formed so as to extend from a rear part of a vehicle body toward a center, wherein the tank includes: a first storage tank (32) located on the rear side of the vehicle body, and stores stored fluid (9); a second storage tank (34) located on a side close to the center in the front-rear direction of the vehicle body, and stores the fluid; a partition part (36) that separates the first storage tank and the second storage tank; a discharge member (49) that has a discharge opening (49a) extending and opened inside the second storage tank, and discharges, from the second storage tank, the fluid stored in the second storage tank; and a hollow tube member (60) that has a first end communicated with the first storage tank through the partition part so as to enable the stored fluid to flow, and a second end having a hollow tube opening (62) extending and opened toward the center of the vehicle body inside the second storage tank, wherein the hollow tube opening of the hollow tubType: ApplicationFiled: February 15, 2019Publication date: March 11, 2021Inventors: Katsuyuki KIRITA, Masamichi TANAKA, Yuuto ABE
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Patent number: 10358794Abstract: A work vehicle, includes: a lift arm rotatably linked to a front portion of a vehicle body of a work vehicle so as to be allowed to swing along an up/down direction; an operation lever that can be operated within a range between a raising operation end position and a lowering operation end position, and is operated to raise and lower the lift arm; an up detent mechanism having a holding function for holding the operation lever at the raising operation end position once the operation lever is operated to the raising operation end position; and a down detent mechanism having a holding function for holding the operation lever at the lowering operation end position once the operation lever is operated to the lowering operation end position, wherein: when an angle of the lift arm becomes greater than a predetermined upper limit, the holding function of the up detent mechanism and the holding function of the down detent mechanism are disengaged.Type: GrantFiled: May 13, 2015Date of Patent: July 23, 2019Assignee: KCM CorporationInventors: Tetsuji Tanaka, Yasunori Miyamoto, Koji Hyodo, Isamu Aoki, Katsuyuki Kirita, Hiroaki Yada, Seiji Nakagawa, Masaki Yoshikawa
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Publication number: 20160369479Abstract: A work vehicle, includes: a lift arm rotatably linked to a front portion of a vehicle body of a work vehicle so as to be allowed to swing along an up/down direction; an operation lever that can be operated within a range between a raising operation end position and a lowering operation end position, and is operated to raise and lower the lift arm; an up detent mechanism having a holding function for holding the operation lever at the raising operation end position once the operation lever is operated to the raising operation end position; and a down detent mechanism having a holding function for holding the operation lever at the lowering operation end position once the operation lever is operated to the lowering operation end position, wherein: when an angle of the lift arm becomes greater than a predetermined upper limit, the holding function of the up detent mechanism and the holding function of the down detent mechanism are disengaged.Type: ApplicationFiled: May 13, 2015Publication date: December 22, 2016Inventors: Tetsuji TANAKA, Yasunori MIYAMOTO, Koji HYODO, Isamu AOKI, Katsuyuki KIRITA, Hiroaki YADA, Seiji NAKAGAWA, Masaki YOSHIKAWA
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Patent number: D1001162Type: GrantFiled: December 3, 2021Date of Patent: October 10, 2023Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kiichi Satou, Masamichi Tanaka, Yuuto Abe, Katsuyuki Kirita, Nami Takeda