Patents by Inventor Toshinari Yamaoka

Toshinari Yamaoka 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).

  • Patent number: 9826686
    Abstract: An gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a accommodating state.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 28, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Patent number: 9781881
    Abstract: A lawn mower deck includes a deck body having a through hole. The deck body includes a chute. The chute forms a groove which is around the through hole and opened downwards. Reinforcing members are mounted to both sides of the deck body in the width direction.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 10, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Qian Liu, Haishen Xu
  • Publication number: 20170276572
    Abstract: A power tool system has a power tool including an electrical device, a power device for powering the electrical device, a position or target detection system for detecting a position of the power tool and/or the power device, a source-based transceiver for at least transmitting data corresponding to the position detected by the position detection system, and a data retrieval and/or process equipment for selectively receiving data from the source-based transceiver at a position around the power tool and/or a position remotely removed away from the power tool.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 28, 2017
    Inventors: Wu Chen, Guigong Ni, Tianshi Yuan, Toshinari Yamaoka
  • Publication number: 20170258012
    Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 14, 2017
    Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
  • Publication number: 20170208748
    Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.
    Type: Application
    Filed: February 8, 2017
    Publication date: July 27, 2017
    Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
  • Publication number: 20170152638
    Abstract: A snowthrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 1, 2017
    Inventors: Xiangqing Fu, Feng Yuan, Keqiong Zhong, Qian Liu, Li Li, Toshinari Yamaoka, Fangjie Nie, Liang Chen
  • Publication number: 20170118910
    Abstract: A cutting head for use with a cutting tool, such as a grass trimmer. The cutting head has a housing, a line spool and a supporting cap. One end of the housing is coupled to an end of a motor output shaft and another end has an opening. A line spool is disposed in the housing and rotates along with the housing. At least one end of a line wound around the line spool extends out of the housing. The supporting cap is rotatably disposed at the end of the line spool adjacent to the opening and is exposed to an exterior of the housing through the opening.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: Toshinari Yamaoka, Hanzheng Li
  • Publication number: 20170086370
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, an operating arm connected to the first end of the main body, and a transmission assembly. The transmission assembly is configured to prevent the switching device from being controlled in a mechanical way by the operation assembly or/and turning on the motor when the first member is moved towards the main body to a predetermined position relative to the second member.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20170086375
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, an operating arm connected to the first end of the main body, and a transmission assembly. The transmission assembly is configured to prevent the switching device from being controlled in a mechanical way by the operation assembly or/and turning on the motor when the first member is moved towards the main body to a predetermined position relative to the second member.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Patent number: 9603497
    Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: March 28, 2017
    Assignee: Chevron (HK) Limited
    Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
  • Publication number: 20170079204
    Abstract: A rotating assembly for a grass trimmer includes a cutting element, a cutting head for mounting the cutting element and driving the cutting element to rotate about a rotating axis and a cover mounted on the cutting head. The cutting head includes a cutting head body and fan blades for generating an air flow when the cutting head being rotated, which are disposed on a top of the cutting head. The cover includes a cover body and protecting ribs for preventing the fan blades from wearing.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 23, 2017
    Inventors: Toshinari Yamaoka, Qihao Sun, Jianpeng Guo
  • Patent number: 9596806
    Abstract: A tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: March 21, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170071134
    Abstract: A hedge trimmer includes a first housing with a first handle, a second housing with a second handle, a transmission mechanism combined to the first housing, a trimming blade for being driven by the transmission mechanism to carry out a shearing motion, an electric motor combined to the first housing and for driving the transmission mechanism, and a battery pack combined to the second housing and for supplying power to the electric motor. The first and second housings respectively include first and second rotation connection parts for making them be connected and rotatable around a rotation axis. The second housing has first and second rotation positions when being rotated with respect to the first housing. A plane perpendicular to the rotation axis is obliquely intersected with a plane perpendicular to a longitudinal axis of the trimming blade.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 16, 2017
    Inventors: Li Li, Fangjie Nie, Toshinari Yamaoka
  • Publication number: 20170066119
    Abstract: A handheld electric tool includes a working device for performing a function of the handheld electric tool, a powering device for provide a driving force to the working device, and a connecting device for connecting the working device and powering device. The powering device includes: an electric motor, a power housing having an air inlet and an air outlet, a transmission mechanism for transmitting power generated by the electric motor and a circuit board for controlling the electric motor, a fan can be driven by the electric motor to provide an airflow which flows from the air inlet to the air outlet. The circuit board, the transmission mechanism and the electric motor are disposed between the air inlet and the air outlet such that the airflow flows through the circuit board, the transmission mechanism and the electric motor successively. The handheld electric tool has excellent cooling effect.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 9, 2017
    Inventors: Huixing Fu, Fangjie Nie, Toshinari Yamaoka, Fangtian Deng
  • Publication number: 20170049047
    Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a secure state.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170049049
    Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control device for sending a control signal to enable or disable the operation of motor by the operation assembly.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170049048
    Abstract: An gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a accommodating state.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20160353660
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20160345714
    Abstract: Embodiments of the disclosure are directed to a back-mounted power tool system. The power tool system includes a battery package that can be used on other power tool systems, a backpack apparatus, a power tool, and a connecting member. The backpack apparatus includes a backpack harness to mount the backpack apparatus onto a user's body and a first connector to removably couple the battery package to the backpack apparatus. The power tool includes a motor driven by a power supply from the battery package. The connecting member transfers a weight of the power tool and/or a force received from the power tool to the backpack apparatus by rotatably coupling the power tool to the backpack apparatus. The connecting member further enables the power tool to rotate about a first rotation axis or a second rotation axis, the first rotation axis being perpendicular to the second rotation axis.
    Type: Application
    Filed: April 14, 2016
    Publication date: December 1, 2016
    Applicant: Chervon (HK) Limited
    Inventors: Toshinari YAMAOKA, Fangjie NIE, Jianpeng GUO
  • Publication number: 20160338266
    Abstract: A hand pushed lawn mower includes a power unit including a motor and a circuit board, a support device for supporting the power unit, and a fan that rotates about a rotating axis. The power unit is detachably connected with the support device and includes a power unit housing. The power unit housing includes a containing chamber for containing the motor and the circuit board, an air inlet allowing an air flow to flow into the containing chamber, and an air outlet allowing the air flow to flow out of the containing chamber. When the fan is rotated, the air flow which flows into the containing chamber from the air inlet at least passes in contact with the circuit board and then flows out of the containing chamber through the air outlet.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 24, 2016
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu