Patents by Inventor Daiki KIYOHARA

Daiki KIYOHARA 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: 11858101
    Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: January 2, 2024
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Takeshi Saitou, Tetsuhito Shige, Daiki Kiyohara, Masashi Nishida
  • Publication number: 20230166390
    Abstract: A nailer for suppressing misfire while keeping operability. In a first mode, a control circuit drives a drive source when a second ON determination is made and a first ON determination is made in a state where a second operation unit is maintained at a second ON position, and when the drive source is driven and then a second OFF determination is made in a state where a first operation unit is maintained at a first ON position, the control circuit does not drive the drive source again unless returning to the initial state. In a second mode, the control circuit drives the drive source when the first ON determination is made and the second ON determination is made in a state where the first operation unit is maintained at the first ON position. A second OFF determination time in the second mode is longer than in the first mode.
    Type: Application
    Filed: March 31, 2021
    Publication date: June 1, 2023
    Inventors: Tetsuhito SHIGE, Tatsuya ITO, Daiki KIYOHARA, Hiroaki IREI
  • Publication number: 20230050091
    Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 16, 2023
    Inventors: Takeshi SAITOU, Tetsuhito SHIGE, Daiki KIYOHARA, Masashi NISHIDA
  • Publication number: 20220355452
    Abstract: A driving tool capable of suppressing the increase in the number of components is provided. The driving tool includes an ejection unit 23 to which a fastener is supplied and a striking unit capable of moving with respect to the ejection unit 23 so as to drive the fastener supplied to the ejection unit 23 into a workpiece, and the driving tool further includes a first push lever 74 capable of contacting with and separating from the workpiece and capable of moving with respect to the ejection unit 23, a second push lever 135 capable of moving in conjunction with the first push lever 74, and a blade guide 120 and a cover 30 having a function to guide a movement of the first push lever 74 and the second push lever 135 with respect to the ejection unit 23 in a predetermined direction.
    Type: Application
    Filed: May 29, 2020
    Publication date: November 10, 2022
    Inventors: Tetsuhito SHIGE, Daiki KIYOHARA
  • Patent number: 11491625
    Abstract: Provided is a driving machine capable of stabilizing a relationship between timing when a first movable member starts operating in a first directing and timing when a second movable member starts operating in a second direction. The driving machine including a first movable member 12 operable in a first direction D1 and a second direction D2, and a second movable member 18 operable in the first direction D1 and the second direction D2 has a first regulating mechanism, a second regulating mechanism, and a third regulating mechanism 71, and the third regulating mechanism is held in a first state when the first movable member 12 is prevented from operating in the first direction D1, and the third regulating mechanism 71 switches from the first state to the second state when the first movable member 12 is allowed to operate in the first direction D1 and operates.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 8, 2022
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Tetsuhito Shige, Daiki Kiyohara, Yoshiichi Komazaki, Masashi Nishida
  • Patent number: 11491629
    Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 8, 2022
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Takeshi Saitou, Tetsuhito Shige, Daiki Kiyohara, Masashi Nishida
  • Publication number: 20210101272
    Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 8, 2021
    Inventors: Takeshi SAITOU, Tetsuhito SHIGE, Daiki KIYOHARA, Masashi NISHIDA
  • Publication number: 20200282535
    Abstract: Provided is a driving machine capable of stabilizing a relationship between timing when a first movable member starts operating in a first directing and timing when a second movable member starts operating in a second direction. The driving machine including a first movable member 12 operable in a first direction D1 and a second direction D2, and a second movable member 18 operable in the first direction D1 and the second direction D2 has a first regulating mechanism, a second regulating mechanism, and a third regulating mechanism 71, and the third regulating mechanism is held in a first state when the first movable member 12 is prevented from operating in the first direction D1, and the third regulating mechanism 71 switches from the first state to the second state when the first movable member 12 is allowed to operate in the first direction D1 and operates.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 10, 2020
    Inventors: Tetsuhito SHIGE, Daiki KIYOHARA, Yoshiichi KOMAZAKI, Masashi NISHIDA