Patents by Inventor Koji Shioya

Koji Shioya 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: 11926027
    Abstract: A driving tool includes: a striking unit striking a fastener by being actuated in a first direction; a rack on the striking unit; a wheel; and a second transmission portion on the wheel and capable of being engaged with and released from the rack. The striking unit can be actuated in a second direction when the second transmission portion is engaged with the rack, and the striking unit can be actuated in the first direction when the second transmission portion is released from the rack. The second transmission portion includes: a tooth portion arranged along a rotation direction of the wheel and turned in a predetermined direction to be engaged with and released from the rack; and a movable piece actuated in the predetermined direction to be engaged with the rack and actuated in a different direction from the predetermined direction to be released from the rack.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: March 12, 2024
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Takashi Ueda, Koji Shioya, Sotaro Aizawa, Toshinori Yasutomi
  • Publication number: 20240017389
    Abstract: A working tool with further improved fastener driving accuracy is realized. A driving tool includes a driver blade configured to strike a fastener and drive it into a driving surface, a blade guide configured to form an ejection path through which the fastener struck by the driver blade passes, and a probe that is movable in a top-bottom direction and contacts to the fastener ejected from the ejection path to guide the fastener. The blade guide is provided with a limiting portion configured to limit an upward movement amount of the probe such that the probe does not reach a predetermined position when the probe moves upward in a state in which a striking direction of the fastener is inclined by a predetermined angle or more with respect to the driving surface.
    Type: Application
    Filed: October 29, 2021
    Publication date: January 18, 2024
    Inventors: Koji SHIOYA, Takashi UEDA, Shota UENO
  • Patent number: 11731255
    Abstract: This driving tool includes: a pressure accumulator (26) in which a compressible gas is accumulated; a striking part which operates in a first direction to strike a fastener with a pressure of the compressible gas; and a driving part which causes the striking part to operate in a second direction opposite to the first direction and to increase the pressure of the pressure accumulator (26). The driving tool further includes: a cylinder chamber (98) in which the compressible gas to be supplied to the pressure accumulator (26) can be contained; a holder (44) forming the pressure accumulator (26) and the cylinder chamber (98); a piston (97) which is disposed in the holder (44) and is operable to reduce the volume of the cylinder chamber (98); and a switching valve (92) capable of connecting and disconnecting the cylinder chamber (98) and the pressure accumulator (26).
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 22, 2023
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Takashi Ueda, Koji Shioya
  • Patent number: 11712791
    Abstract: The disclosure provides a driving tool. The driving tool includes an ejection part, a pressure accumulator, a striking part, a driving part, and a housing. The driving tool includes a cylinder forming at least a part of the pressure accumulator, and a piston formed in the striking part. The driving part and a wire material are entirely disposed outside, in the radial direction of the cylinder, a region in which the piston is arranged, and outside a region in which the piston slides in an operating direction of the striking part with respect to the cylinder.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 1, 2023
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Koji Shioya, Takashi Ueda
  • Patent number: 11654539
    Abstract: Nail jamming in a driving tool is easily solved. The driving tool includes: a striking driver configured to drive a driver blade that strikes a fastener; a first blade guide fixed to a main body having the striking driver; and a second blade guide attached to the first blade guide and configured to form an injection path for the fastener together with the first blade guide. The driver blade is arranged so as to go through a space made of two opposite side walls of the injection path, a top wall and a bottom wall, and either one of the two side walls, is separated from the injection path when the first blade guide and the second blade guide are separated from each other.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 23, 2023
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Takashi Ueda, Koji Shioya
  • Publication number: 20220134524
    Abstract: A driving tool capable of making a second engaging portion engage with a first engaging portion which is an original engaging target when a rotating portion is rotated in a state where a striking unit is stopped between a first position and a second position is provided. The driving tool includes a striking unit 12, a wheel 50 configured to actuate the striking unit 12, a plurality of first engaging portions provided on the striking unit 12, and a plurality of second engaging portions provided on the wheel 50. The plurality of first engaging portions includes first engaging portions 61 and 62 and first engaging portions 63 to 71.
    Type: Application
    Filed: March 6, 2020
    Publication date: May 5, 2022
    Inventors: Koji SHIOYA, Takashi UEDA
  • Publication number: 20210316433
    Abstract: Nail jamming in a driving tool is easily solved. The driving tool includes: a striking driver configured to drive a driver blade that strikes a fastener; a first blade guide fixed to a main body having the striking driver; and a second blade guide attached to the first blade guide and configured to form an injection path for the fastener together with the first blade guide. The driver blade is arranged so as to go through a space made of two opposite side walls of the injection path, a top wall and a bottom wall, and either one of the two side walls, is separated from the injection path when the first blade guide and the second blade guide are separated from each other.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 14, 2021
    Inventors: Takashi UEDA, Koji SHIOYA
  • Publication number: 20210308852
    Abstract: A driving tool includes: a striking unit striking a fastener by being actuated in a first direction; a rack on the striking unit; a wheel; and a second transmission portion on the wheel and capable of being engaged with and released from the rack. The striking unit can be actuated in a second direction when the second transmission portion is engaged with the rack, and the striking unit can be actuated in the first direction when the second transmission portion is released from the rack. The second transmission portion includes: a tooth portion arranged along a rotation direction of the wheel and turned in a predetermined direction to be engaged with and released from the rack; and a movable piece actuated in the predetermined direction to be engaged with the rack and actuated in a different direction from the predetermined direction to be released from the rack.
    Type: Application
    Filed: September 13, 2019
    Publication date: October 7, 2021
    Inventors: Takashi UEDA, Koji SHIOYA, Sotaro AIZAWA, Toshinori YASUTOMI
  • Publication number: 20210245345
    Abstract: This driving tool includes: a pressure accumulator (26) in which a compressible gas is accumulated; a striking part which operates in a first direction to strike a fastener with a pressure of the compressible gas; and a driving part which causes the striking part to operate in a second direction opposite to the first direction and to increase the pressure of the pressure accumulator (26). The driving tool further includes: a cylinder chamber (98) in which the compressible gas to be supplied to the pressure accumulator (26) can be contained; a holder (44) forming the pressure accumulator (26) and the cylinder chamber (98); a piston (97) which is disposed in the holder (44) and is operable to reduce the volume of the cylinder chamber (98); and a switching valve (92) capable of connecting and disconnecting the cylinder chamber (98) and the pressure accumulator (26).
    Type: Application
    Filed: March 29, 2019
    Publication date: August 12, 2021
    Applicant: Koki Holdings Co., Ltd.
    Inventors: Takashi Ueda, Koji SHIOYA
  • Publication number: 20210146517
    Abstract: The disclosure provides a driving tool. The driving tool includes an ejection part, a pressure accumulator, a striking part, a driving part, and a housing. The driving tool includes a cylinder forming at least a part of the pressure accumulator, and a piston formed in the striking part. The driving part and a wire material are entirely disposed outside, in the radial direction of the cylinder, a region in which the piston is arranged, and outside a region in which the piston slides in an operating direction of the striking part with respect to the cylinder.
    Type: Application
    Filed: March 29, 2019
    Publication date: May 20, 2021
    Applicant: Koki Holdings Co., Ltd.
    Inventors: Koji Shioya, Takashi Ueda