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).

  • Publication number: 20230415611
    Abstract: 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: Application
    Filed: November 30, 2021
    Publication date: December 28, 2023
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Kazuma Moriguchi, Jun Terashima, Satoshi Kitahara, Keishi Yamanaka, Kensuke Kaneda
  • Patent number: 10906601
    Abstract: 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: Grant
    Filed: September 9, 2016
    Date of Patent: February 2, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Hideaki Aoki, Kazuma Moriguchi
  • Publication number: 20180281878
    Abstract: 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: Application
    Filed: September 9, 2016
    Publication date: October 4, 2018
    Applicant: Yanmar Co., Ltd.
    Inventors: Hideaki AOKI, Kazuma MORIGUCHI
  • Patent number: 10053166
    Abstract: 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: Grant
    Filed: April 22, 2015
    Date of Patent: August 21, 2018
    Assignee: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Hidekazu Niu, Hideaki Aoki
  • Publication number: 20170043818
    Abstract: 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: Application
    Filed: April 22, 2015
    Publication date: February 16, 2017
    Applicant: YANMAR CO., LTD.
    Inventors: Kazuma MORIGUCHI, Hidekazu NIU, Hideaki AOKI
  • Patent number: 9313948
    Abstract: 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: Grant
    Filed: November 30, 2011
    Date of Patent: April 19, 2016
    Assignee: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
  • Patent number: 9288942
    Abstract: 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: Grant
    Filed: November 10, 2010
    Date of Patent: March 22, 2016
    Assignee: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Shinichi Motegi, Keiji Matsumoto, Mitsuhiro Nakagaki, Tomoyuki Ebihara
  • Publication number: 20140102065
    Abstract: 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: Application
    Filed: November 30, 2011
    Publication date: April 17, 2014
    Applicant: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
  • Patent number: 8578687
    Abstract: 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: Grant
    Filed: October 22, 2010
    Date of Patent: November 12, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Tomoyuki Ebihara, Kazuma Moriguchi, Keiichi Hayashi
  • Patent number: 8240414
    Abstract: 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: Grant
    Filed: May 23, 2011
    Date of Patent: August 14, 2012
    Assignees: Yanmar Co., Ltd., Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Kengo Sasahara, Tomoyuki Ebihara, Mitsuhiro Nakagaki, Kazuma Moriguchi, Keiji Matsumoto
  • Publication number: 20120186887
    Abstract: 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: Application
    Filed: November 10, 2010
    Publication date: July 26, 2012
    Inventors: Kazuma Moriguchi, Shinichi Motegi, Keiji Matsumoto, Mitsuhiro Nakagaki, Tomoyuki Ebihara
  • Publication number: 20120111655
    Abstract: 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: Application
    Filed: October 22, 2010
    Publication date: May 10, 2012
    Inventors: Tomoyuki Ebihara, Kazuma Moriguchi, Keiichi Hayashi
  • Publication number: 20110289896
    Abstract: 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: Application
    Filed: May 23, 2011
    Publication date: December 1, 2011
    Inventors: Kengo SASAHARA, Tomoyuki EBIHARA, Mitsuhiro NAKAGAKI, Kazuma MORIGUCHI, Keiji MATSUMOTO
  • Patent number: 8033086
    Abstract: 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: Grant
    Filed: December 25, 2007
    Date of Patent: October 11, 2011
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Fukumoto, Kazuma Moriguchi, Koji Kawakami
  • Publication number: 20110120072
    Abstract: 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: Application
    Filed: December 25, 2007
    Publication date: May 26, 2011
    Applicant: YANMAR CO., LTD.
    Inventors: Takeshi Fukumoto, Kazuma Moriguchi, Koji Kawakami
  • Patent number: D626572
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: November 2, 2010
    Assignee: Yanmar Co., Ltd.
    Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
  • Patent number: D655316
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 6, 2012
    Assignee: Yanmar Co., Ltd.
    Inventors: Kazuma Moriguchi, Tomoyuki Ebihara, Masafumi Yasaka