Patents by Inventor Kazuma Moriguchi
Kazuma Moriguchi 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: 20230415611Abstract: The present invention discloses a configuration for cooling both an electric motor as a drive source and a device for supplying electric power to the electric motor using a cooling medium such as water with a view to achieving efficient cooling without any cost increase. The present invention comprises: an electric motor serving as a drive source; a power feeder for supplying electric power to the electric motor from outside; a cooling flow channel through which coolant water is circulated for cooling the electric motor and the power feeder; and a radiator which cools the coolant water flowing through the cooling flow channel.Type: ApplicationFiled: November 30, 2021Publication date: December 28, 2023Applicant: Yanmar Holdings Co., Ltd.Inventors: Kazuma Moriguchi, Jun Terashima, Satoshi Kitahara, Keishi Yamanaka, Kensuke Kaneda
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Patent number: 10906601Abstract: A passenger vehicle provided with a steering handle and configured such that an attitude angle of the driver seat surface relative to a horizontal reference plane is changeable, so that a first attitude changing operation switch and a second attitude changing operation switch for changing the attitude angle are disposed in such positions as to be operable with a thumb of the driver of the vehicle from a steering handle grip of the steering handle.Type: GrantFiled: September 9, 2016Date of Patent: February 2, 2021Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Hideaki Aoki, Kazuma Moriguchi
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Publication number: 20180281878Abstract: A passenger vehicle provided with a steering handle (15) and configured such that an attitude angle of the driver seat surface (14a) relative to a horizontal reference plane is changeable, so that a first attitude changing operation switch (25) and a second attitude changing operation switch (26) for changing the attitude angle are disposed in such positions as to be operable with a thumb of the driver of the vehicle from a steering handle grip (18) of the steering handle (15).Type: ApplicationFiled: September 9, 2016Publication date: October 4, 2018Applicant: Yanmar Co., Ltd.Inventors: Hideaki AOKI, Kazuma MORIGUCHI
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Patent number: 10053166Abstract: A traveling vehicle includes: a vehicle body frame, a pair of right and left front crawler traveling devices, a pair of right and left rear crawler traveling devices, a front suspension device that suspends the pair of right and left front crawler traveling devices on the vehicle body frame, and a rear suspension device that suspends the pair of right and left rear crawler traveling devices on the vehicle body frame. The front suspension device integrally suspends the pair of right and left front crawler traveling devices on the vehicle body frame and allows the pair of right and left front crawler traveling devices to be swingable in the vertical direction with respect to the vehicle body frame.Type: GrantFiled: April 22, 2015Date of Patent: August 21, 2018Assignee: YANMAR CO., LTD.Inventors: Kazuma Moriguchi, Hidekazu Niu, Hideaki Aoki
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Publication number: 20170043818Abstract: A traveling vehicle includes: a vehicle body frame, a pair of right and left front crawler traveling devices, a pair of right and left rear crawler traveling devices, a front suspension device that suspends the pair of right and left front crawler traveling devices on the vehicle body frame, and a rear suspension device that suspends the pair of right and left rear crawler traveling devices on the vehicle body frame. The front suspension device integrally suspends the pair of right and left front crawler traveling devices on the vehicle body frame and allows the pair of right and left front crawler traveling devices to be swingable in the vertical direction with respect to the vehicle body frame.Type: ApplicationFiled: April 22, 2015Publication date: February 16, 2017Applicant: YANMAR CO., LTD.Inventors: Kazuma MORIGUCHI, Hidekazu NIU, Hideaki AOKI
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Patent number: 9313948Abstract: A battery car 25 which supplies electrical power to a running motor 16 and a mower motor 15 is included, wheels 34, 38 for facilitating the movement is attached to the battery car 25, and the battery car 25 is connected to a rear portion of a chassis 11 in a freely attachable and detachable manner. Moreover, a bracket 50 for connecting the battery car 25 is included in the rear portion of the chassis 11, and a locking shaft 74 to be connected to the bracket 50 is included in the battery car 25.Type: GrantFiled: November 30, 2011Date of Patent: April 19, 2016Assignee: YANMAR CO., LTD.Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
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Patent number: 9288942Abstract: An electric riding mower efficiently cools a motor driver. The mower includes two running motors 16 independently driving paired rear tires 13; a mower blade mowing grass by being rotated; a mowing motor 15 rotating the mower blade; a battery 25 supplying electric power to the running motors 16 and the mowing motor 15; and a mower-motor driver MD controlling the rotational speed of the mowing motor 15, wherein the mower-motor driver MD is disposed in a driver storage part on a front part of the mower, and a slit 33SL taking in external air is disposed on a front surface of the driver storage part.Type: GrantFiled: November 10, 2010Date of Patent: March 22, 2016Assignee: YANMAR CO., LTD.Inventors: Kazuma Moriguchi, Shinichi Motegi, Keiji Matsumoto, Mitsuhiro Nakagaki, Tomoyuki Ebihara
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Publication number: 20140102065Abstract: A battery car 25 which supplies electrical power to a running motor 16 and a mower motor 15 is included, wheels 34, 38 for facilitating the movement is attached to the battery car 25, and the battery car 25 is connected to a rear portion of a chassis 11 in a freely attachable and detachable manner. Moreover, a bracket 50 for connecting the battery car 25 is included in the rear portion of the chassis 11, and a locking shaft 74 to be connected to the bracket 50 is included in the battery car 25.Type: ApplicationFiled: November 30, 2011Publication date: April 17, 2014Applicant: YANMAR CO., LTD.Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
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Patent number: 8578687Abstract: A ride-on mower can easily lift mower deck up and down so that it remains horizontal. The ride-on mower has driving motors, mower blades spinning for mowing grass, mowing motors for the mower blades, batteries for the driving motors and the mowing motors, a mower deck for covering the mower blades from the above and sides and for setting the mowing motors on, and a mower deck lifting device for lifting up and down the mower deck. The mower deck lifting device has a booster for assisting the mower deck lifting device in lifting the mower deck up and down, and the mower deck lifting device is set at the center on the mower deck.Type: GrantFiled: October 22, 2010Date of Patent: November 12, 2013Assignee: Yanmar Co., Ltd.Inventors: Tomoyuki Ebihara, Kazuma Moriguchi, Keiichi Hayashi
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Patent number: 8240414Abstract: An electric lawn mower includes a main frame, a mower deck supported by the main frame, a castor supported by the main frame, a sub frame, a pair of transaxles, and a pair of motor drivers. Each of the transaxles includes a transaxle housing, an electric motor disposed in the transaxle housing, a single axle supported by the transaxle housing, and a drive wheel fixed on the axle outside of the transaxle housing. The motor drivers supply electric power to the respective motors of the respective transaxles. The sub frame, supporting the transaxles and the motor drivers, is connected to the main frame.Type: GrantFiled: May 23, 2011Date of Patent: August 14, 2012Assignees: Yanmar Co., Ltd., Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Kengo Sasahara, Tomoyuki Ebihara, Mitsuhiro Nakagaki, Kazuma Moriguchi, Keiji Matsumoto
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Publication number: 20120186887Abstract: An electric riding mower efficiently cooling a motor driver with a simple configuration is provided. Provided are two running motors 16 independently driving paired rear tires 13; a mower blade mowing grass by being rotated; a mowing motor 15 rotating the mower blade; a battery 25 supplying electric power to the running motors 16 and the mowing motor 15; and a mower-motor driver MD controlling the rotational speed of the mowing motor 15, wherein the mower-motor driver MD is disposed in a driver storage part on a front part of the mower, and a slit 33SL taking in external air is disposed on a front surface of the driver storage part.Type: ApplicationFiled: November 10, 2010Publication date: July 26, 2012Inventors: Kazuma Moriguchi, Shinichi Motegi, Keiji Matsumoto, Mitsuhiro Nakagaki, Tomoyuki Ebihara
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Publication number: 20120111655Abstract: This invention provides an electric ride-on mower that can easily lift up and down the mower deck and can also lift up and down the mower deck so that it remains horizontal. The electric ride-on mower has driving motors, mower blades spinning for mowing grass, mowing motors for the mower blades, batteries for the driving motors and the mowing motors, a mower deck for covering the mower blades from the above and sides and for setting the mowing motors on, and a mower deck lifting device for lifting up and down the mower deck, wherein: the mower deck lifting device has a booster for assisting the mower deck lifting device in lifting up and down the mower deck, and the mower deck lifting device is set at the center on the mower deck.Type: ApplicationFiled: October 22, 2010Publication date: May 10, 2012Inventors: Tomoyuki Ebihara, Kazuma Moriguchi, Keiichi Hayashi
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Publication number: 20110289896Abstract: An electric lawn mower includes a main frame, a mower deck supported by the main frame, a castor supported by the main frame, a sub frame, a pair of transaxles, and a pair of motor drivers. Each of the transaxles includes a transaxle housing, an electric motor disposed in the transaxle housing, a single axle supported by the transaxle housing, and a drive wheel fixed on the axle outside of the transaxle housing. The motor drivers supply electric power to the respective motors of the respective transaxles. The sub frame, supporting the transaxles and the motor drivers, is connected to the main frame.Type: ApplicationFiled: May 23, 2011Publication date: December 1, 2011Inventors: Kengo SASAHARA, Tomoyuki EBIHARA, Mitsuhiro NAKAGAKI, Kazuma MORIGUCHI, Keiji MATSUMOTO
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Patent number: 8033086Abstract: A lawn mower is provided with a lawn mowing mechanism, a grass collection box receiving grass mowed by the lawn mowing mechanism, a lift mechanism for lifting the grass collection box high, and a rear lid plate structured such as to openably close an opening in the rear surface of the grass collection box wherein an improvement is achieved in the stability of a support at a time of lifting up the grass collection box high in the case of discharging the mowed grass in the grass collection box in a state of lifting up the grass collection box high, and also achieves a downsizing and a weight saving. A bottom portion of the grass collection box is opened, the opened bottom portion being operably closed by a bottom lid plate, and the mowed grass is discharged from the grass collection box by an opening actuation of the bottom lid plate and the rear lid plate.Type: GrantFiled: December 25, 2007Date of Patent: October 11, 2011Assignee: Yanmar Co., Ltd.Inventors: Takeshi Fukumoto, Kazuma Moriguchi, Koji Kawakami
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Publication number: 20110120072Abstract: In a lawn mower provided with a lawn mowing mechanism (13), a grass collection box (18) receiving grass mowed by the lawn mowing mechanism, a lift mechanism (19) for lifting up the grass collection box (18) high, and a rear lid plate (21) structured such as to openably close an opening in a rear surface of the grass collection box (18), the invention achieves an improvement of a stability of a support at a time of lifting up the grass collection box (18) high in the case of discharging the mowed grass in the grass collection box (18) in a state of lifting up the grass collection box (18) high, and also achieves a downsizing and a weight saving. A bottom portion of the grass collection box (18) is opened, the opened bottom portion is openably closed by a bottom lid plate (20), and the mowed grass is discharged from the grass collection box (18) by an opening actuation of the bottom lid plate (20) and the rear lid plate (21).Type: ApplicationFiled: December 25, 2007Publication date: May 26, 2011Applicant: YANMAR CO., LTD.Inventors: Takeshi Fukumoto, Kazuma Moriguchi, Koji Kawakami
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Patent number: D626572Type: GrantFiled: February 18, 2010Date of Patent: November 2, 2010Assignee: Yanmar Co., Ltd.Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
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Patent number: D655316Type: GrantFiled: June 30, 2011Date of Patent: March 6, 2012Assignee: Yanmar Co., Ltd.Inventors: Kazuma Moriguchi, Tomoyuki Ebihara, Masafumi Yasaka