Patents by Inventor Soichi Katsuyama

Soichi Katsuyama 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).

  • Seat belt buckle
    Patent number: 6588077
    Abstract: A seat belt buckle is provided which can prevent ejection of a tongue plate caused by so-called reverse G without increasing release force for releasing a lock state. The seat belt buckle comprises a latch including a latch swinging end portion, a lock member including a lock swinging end portion, which is made to swing between a lock position, at which at the time of latching, the lock swinging end portion swings on the latch swinging end portion and engage to stop the latch swinging end portion in a state of pressing the latch swinging end portion toward engagement holes of a tongue plate and a base while pressing the same in a tongue plate insertion direction, thereby locking the latching, and a lock release position, a lock operation end portion for releasing the locking and a weight portion formed at the side of the lock swinging end portion.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: July 8, 2003
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki Seisakusho
    Inventors: Soichi Katsuyama, Shinji Mori, Tetsushi Muromachi
  • Seat belt buckle
    Publication number: 20020178557
    Abstract: A seat belt buckle is provided which can prevent ejection of a tongue plate caused by so-called reverse G without increasing release force for releasing a lock state. The seat belt buckle comprises a latch including a latch swinging end portion, a lock member including a lock swinging end portion, which is made to swing between a lock position, at which at the time of latching, the lock swinging end portion swings on the latch swinging end portion and engage to stop the latch swinging end portion in a state of pressing the latch swinging end portion toward engagement holes of a tongue plate and a base while pressing the same in a tongue plate insertion direction, thereby locking the latching, and a lock release position, a lock operation end portion for releasing the locking and a weight portion formed at the side of the lock swinging end portion.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 5, 2002
    Inventors: Soichi Katsuyama, Shinji Mori, Tetsushi Muromachi