Patents by Inventor Atsushi KITABATA

Atsushi KITABATA 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: 20240151091
    Abstract: A door closing apparatus includes a first rotary electric motor that is configured to rotate a first pinion to open and close a first door body; and a second rotary electric motor that is provided separately from the first rotary electric motor and configured to rotate a second pinion to open and close a second door body.
    Type: Application
    Filed: September 27, 2023
    Publication date: May 9, 2024
    Inventors: Takahiro SHIROMA, Atsushi KITABATA
  • Patent number: 11162294
    Abstract: A door control device includes: an electric motor control unit configured to drive, in response to a closing command for closing a door that is driven to be opened and closed by an electric motor, the electric motor; a door closed state detection unit configured to detect a closed state of the door; and a lock command output unit configured to output a lock command to lock a locking device of the door, upon the closed state being detected when a predetermined waiting time has passed after the electric motor was driven by the electric motor control unit in response to the closing command and the closed state was detected by the door closed state detection unit.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: November 2, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Kenji Fujita, Atsushi Kitabata
  • Patent number: 10494852
    Abstract: A door opening/closing device includes: an opening/closing bar attached to a door, which is actuated by a motor and is used for opening and closing the door; a door closing state detecting part configured to detect whether the door is in a closed state; a locking device configured to lock and unlock the door; a lock pin capable of being moved to a locked position or an unlocked position by the locking device; an engaging member attached to the opening/closing bar, which includes an engaging part configured to engage with the lock pin moved to the locked position; a first spring provided between the opening/closing bar and the engaging member; and a locking control unit configured to cause the locking device to lock the door when the closed state is detected by the door closing state detecting part.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 3, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Kenji Fujita, Atsushi Kitabata
  • Publication number: 20190242175
    Abstract: A door opening/closing device includes: an opening/closing bar attached to a door, which is actuated by a motor and is used for opening and closing the door; a door closing state detecting part configured to detect whether the door is in a closed state; a locking device configured to lock and unlock the door; a lock pin capable of being moved to a locked position or an unlocked position by the locking device; an engaging member attached to the opening/closing bar, which includes an engaging part configured to engage with the lock pin moved to the locked position; a first spring provided between the opening/closing bar and the engaging member; and a locking control unit configured to cause the locking device to lock the door when the closed state is detected by the door closing state detecting part.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Inventors: Kenji FUJITA, Atsushi KITABATA
  • Publication number: 20190218848
    Abstract: A door control device includes: an electric motor control unit configured to drive, in response to a closing command for closing a door that is driven to be opened and closed by an electric motor, the electric motor; a door closed state detection unit configured to detect a closed state of the door; and a lock command output unit configured to output a lock command to lock a locking device of the door, upon the closed state being detected when a predetermined waiting time has passed after the electric motor was driven by the electric motor control unit in response to the closing command and the closed state was detected by the door closed state detection unit.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: Kenji FUJITA, Atsushi KITABATA
  • Patent number: 9822575
    Abstract: A movable body driving device includes upper and lower racks movable in a lengthwise direction; a motor which can rotate forward and backward; a drive pinion fixed to a rotary shaft of the motor; and a driven pinion engaging the upper and lower racks. The driven pinion is driven to rotate by the upper rack to thereby drive the lower rack linearly in a direction reverse to the upper rack. A sliding door is connected to the lower rack and is opened or closed in accordance with forward or backward rotation of the motor.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: November 21, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Atsushi Kitabata
  • Patent number: 8776434
    Abstract: A side sliding door apparatus for a vehicle includes one of two sliding doors driven by an actuator, and the other moves in conjunction with the one sliding door via a direction converting mechanism. When the sliding door is in a closed condition, a latch rod is inserted into a lock hole to lock the sliding doors in the closed condition. A roller is pushed up on a cam surface when the sliding doors are opened, which releases the locking. An upper level surface of the cam surface forms an inclined surface with a downward gradient, which prevents the roller from unexpectedly going beyond the starting end of the upper level surface and dropping due to vibration or the like being applied to the slider in the unlocked condition, and prevents the locking with the locking mechanism in response to the next sliding door closing command.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: July 15, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Tomio Terasaki, Atsushi Kitabata
  • Patent number: 8640561
    Abstract: A door driving apparatus having a motor, a sleeve formed at a drive end of a rotor of the motor, a pinion integrally fixed to a rotation shaft integrated with a spline shaft detachably fitted to the sleeve, and left and right racks disposed opposite to each other with respect to the pinion and engaged with the pinion so that the left and right racks can move in directions substantially parallel and opposite to each other. When the motor is individually removed from a rack and pinion casing, the pinion is left in the pinion and rack casing while upper and lower sides of the pinion are engaged with the right and left racks, respectively. Accordingly, the relative positions of the left and right racks are unchanged.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: February 4, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hiroshi Harie, Atsushi Kitabata
  • Publication number: 20110308164
    Abstract: A side sliding door apparatus for a vehicle includes one of two sliding doors driven by an actuator, and the other moves in conjunction with the one sliding door via a direction converting mechanism. When the sliding door is in a closed condition, a latch rod is inserted into a lock hole to lock the sliding doors in the closed condition. A roller is pushed up on a cam surface when the sliding doors are opened, which releases the locking. An upper level surface of the cam surface forms an inclined surface with a downward gradient, which prevents the roller from unexpectedly going beyond the starting end of the upper level surface and dropping due to vibration or the like being applied to the slider in the unlocked condition, and prevents the locking with the locking mechanism in response to the next sliding door closing command.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 22, 2011
    Inventors: Tomio Terasaki, Atsushi Kitabata
  • Publication number: 20100212229
    Abstract: A movable body driving device includes upper and lower racks movable in a lengthwise direction; a motor which can rotate forward and backward; a drive pinion fixed to a rotary shaft of the motor; and a driven pinion engaging the upper and lower racks to move linearly by the drive pinion. The driven pinion is driven to rotate by the upper or lower rack to thereby drive the lower or upper rack linearly in a direction reverse to the other rack. A sliding door is connected to the upper or lower rack and is opened or closed in accordance with forward or backward rotation of the motor. The drive pinion transmits its driving force while the rack to which the driving force is transmitted is changed from the upper rack to the lower rack or from the lower rack to the upper rack.
    Type: Application
    Filed: January 14, 2010
    Publication date: August 26, 2010
    Applicant: FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventor: Atsushi Kitabata
  • Publication number: 20090266185
    Abstract: A door driving apparatus having a motor, a sleeve formed at a drive end of a rotor of the motor, a pinion integrally fixed to a rotation shaft integrated with a spline shaft detachably fitted to the sleeve, and left and right racks disposed opposite to each other with respect to the pinion and engaged with the pinion so that the left and right racks can move in directions substantially parallel and opposite to each other. When the motor is individually removed from a rack and pinion casing, the pinion is left in the pinion and rack casing while upper and lower sides of the pinion are engaged with the right and left racks, respectively. Accordingly, the relative positions of the left and right racks are unchanged.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 29, 2009
    Applicant: FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventors: Hiroshi HARIE, Atsushi KITABATA