Patents by Inventor Toshikatsu Sawahata

Toshikatsu Sawahata 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).

  • Passenger protection apparatus
    Patent number: 7761206
    Abstract: A passenger protection apparatus (1) includes a rollover angular speed detection device (10), which detects a rollover angular speed during vehicle rollover, a rollover determination device (14), which conducts a determination of the vehicle rollover based on the rollover angular speed detected by the rollover angular speed detection device (10) and a rollover angle obtained from the rollover angular speed, a passenger protector (2), which operates in accordance with a determination result of the rollover determination device (14) to protect a passenger, a vertical G sensor (11), which detects an acceleration of an up and down direction of the vehicle; a horizontal G sensor (12), which detects an acceleration of a right and left direction of the vehicle, and an angular speed sensor error determination device (16), which conducts a determination whether or not a zero-point drift of the rollover angular speed detection device (10) occurs based on a detected signal of the vertical G sensor (11) or the horizontal
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: July 20, 2010
    Assignee: Calsonic Kansei Corporation
    Inventor: Toshikatsu Sawahata
  • Vehicle behavior judgment system and vehicle occupant-protecting system
    Patent number: 7454276
    Abstract: A vehicle behavior judgment system comprising a rolling angular velocity detector adapted for detecting a rolling angular velocity of a vehicle, a rollover judgment device adapted for judging, based on at least a rolling angular velocity of a vehicle, whether the vehicle rolls over or not, and a noise-cutting filter adapted for removing a noise component from the rolling angular velocity.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: November 18, 2008
    Assignee: Calsonic Kansei Corporation
    Inventor: Toshikatsu Sawahata
  • Passenger protection apparatus
    Publication number: 20060161323
    Abstract: A passenger protection apparatus (1) includes a rollover angular speed detection device (10), which detects a rollover angular speed during vehicle rollover, a rollover determination device (14), which conducts a determination of the vehicle rollover based on the rollover angular speed detected by the rollover angular speed detection device (10) and a rollover angle obtained from the rollover angular speed, a passenger protector (2), which operates in accordance with a determination result of the rollover determination device (14) to protect a passenger, a vertical G sensor (11), which detects an acceleration of an up and down direction of the vehicle; a horizontal G sensor (12), which detects an acceleration of a right and left direction of the vehicle, and an angular speed sensor error determination device (16), which conducts a determination whether or not a zero-point drift of the rollover angular speed detection device (10) occurs based on a detected signal of the vertical G sensor (11) or the horizontal
    Type: Application
    Filed: March 21, 2006
    Publication date: July 20, 2006
    Inventor: Toshikatsu Sawahata
  • Vehicle behavior judgment system and vehicle occupant-protecting system
    Publication number: 20050165528
    Abstract: A vehicle behavior judgment system comprising a rolling angular velocity detector adapted for detecting a rolling angular velocity of a vehicle, a rollover judgment device adapted for judging, based on at least a rolling angular velocity of a vehicle, whether the vehicle rolls over or not, and a noise-cutting filter adapted for removing a noise component from the rolling angular velocity.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 28, 2005
    Inventor: Toshikatsu Sawahata