Patents by Inventor Shunzi Mizumura

Shunzi Mizumura 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).

  • Passive seat belt apparatus
    Patent number: 4972129
    Abstract: A passive seat belt system comprises a seat belt adapted to reciprocate between a fasten end and a release end so as to be fastened and released to and from a rider, a motor for driving the seat belt, and a controller for controlling the motor so as to fasten and release the seat belt to and from the rider as he enters and exits the vehicle. The controller controls the motor in such a manner that the motor is stopped and then reversely rotated after the lapse of a predetermined period when the motor is to be reversely rotated during rotation thereof.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: November 20, 1990
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Osamu Kawai, Shunzi Mizumura
  • Passive seat belt system
    Patent number: 4902039
    Abstract: A passive seat belt system for automatic fastening or unfastening of a seat belt in response to the boarding and exiting of a seat occupant has an overload for detector for detecting the presence of an overload in the movement of a movable anchor of the seat belt, and a controller adapted for stopping a motor for moving said movable anchor in response to the detection of an overload in the movement of the movable anchor.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: February 20, 1990
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Osamu Kawai, Shunzi Mizumura
  • Passive seat belt system
    Patent number: 4896741
    Abstract: A passive seat belt system comprises drive means for reciprocating a seat belt, first detector activated in response to opening and closing of a door, a second detector activated when a slider of the seat belt is at a predetermined position, first control means for controlling the drive means in accordance with the detection outputs of the first and second detectors, and second control means for causing the first control means to drive the seat belt backward when the first or second detector fails or is in an abnormal state.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: January 30, 1990
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Osamu Kawai, Shunzi Mizumura
  • Passive seat belt system
    Patent number: 4838577
    Abstract: A passive seat belt system includes a seat belt; a slide anchor connected to one end of the belt and reciprocally movable from a fasten end at which a person on a vehicle is bound to a release end at which the person on the vehicle is released, in response to opening and closing of a door; a winder connected to the other end of the seat belt having an emergency lock mechanism for blocking the feed of the seat belt in an emergency case and a forcible release device for unlocking the emergency lock mechanism; and a controller for moving said slide anchor to the release end when said forcible release device is actuated to unlock said emergency lock mechanism.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: June 13, 1989
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Osamu Kawai, Shunzi Mizumura