Patents by Inventor Toshihito Kawamura

Toshihito Kawamura 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: 11975677
    Abstract: The airbag device includes an airbag and a gas generator. The gas generator includes a body containing inflation gas and sealed with an unsealable lid, and a discharge portion that includes a housing, an outlet that is formed in the housing and allows outflow of gas to the airbag when the body is unsealed, a piercing pin for unsealing the lid, a spring for moving the pin, a retaining member that retains the spring, and a sliding mechanism that shifts the retaining member to a release position. The sliding mechanism includes a drive source and a connecting member that shifts the retaining member to the release position by a driving force of the drive source. The piercing pin, spring, lid and a portion of the retaining member retaining the spring are housed in the housing. The drive source and connecting member are partitioned from a gas channel inside the housing.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: May 7, 2024
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Toshihito Yanagisawa, Wataru Miura, Yusuke Kawamura
  • Patent number: 11974616
    Abstract: A wearable airbag device for protecting the hip of a wearer includes an airbag adapted to be worn around the pelvis and inflatable with an inflation gas. The airbag includes: an inner wall configured to face the wearer at airbag deployment; an outer wall opposite the inner wall and having a circumferential edge jointed with that of the inner wall so that the airbag has a substantially board shape when inflated; a contact portion disposed in an upper reach of a stream of inflation gas and configured to be deployed at a side of the pelvis; a protecting portion configured to be deployed in such a manner as to extend downward from the contact portion for covering an outer side of the trochanter of femur at airbag deployment; and a float-preventing means for preventing the protecting portion from floating away from the body of the wearer at airbag deployment.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: May 7, 2024
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Toshihito Yanagisawa, Wataru Miura, Yusuke Kawamura
  • Patent number: 11950645
    Abstract: A wearable airbag device includes a wearable member and an airbag held by the wearable member and inflatable with an inflation gas fed from a gas generator. The airbag includes a bag body that forms an outer shell of the airbag which includes an inner wall adapted to face the wearer when worn and an outer wall opposite to the inner wall, the bag body including one or more protecting inflatable portions for covering and protecting one or more targeted body parts respectively, and an inner bag that is disposed inside the bag body and configured to be inflated with the inflation gas from the gas generator. The inner bag includes one or more supply ports for forwarding the inflation gas to the bag body. Each of the supply ports is configured to emit the inflation gas toward one of the protecting inflatable portions and toward the outer wall.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 9, 2024
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Toshihito Yanagisawa, Yusuke Kawamura, Wataru Miura
  • Patent number: 11910850
    Abstract: A wearable airbag device adapted to be worn by a wearer is disclosed, including a gas generator that is configured to be actuated at fall of the wearer, an airbag that includes a plurality of inflatable portions that are partitioned from one another, the plurality of inflatable portions each including an gas inlet port and being configured to be inflated with an inflation gas fed from the gas generator via the gas inlet port for protecting a targeted body part of the wearer, and a gas switching mechanism that is disposed in a pathway of the inflation gas from the gas generator toward the plurality of inflatable portions, the gas switching mechanism being configured to switch a destination of the inflation gas emitted from the gas generator over to only one inflatable portion disposed in a falling direction of the wearer out of the plurality of inflatable portions.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: February 27, 2024
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Toshihito Yanagisawa, Wataru Miura, Hitomi Takahashi, Yusuke Kawamura
  • Patent number: 4905369
    Abstract: A tool changer has a rotatably supported driving shaft, a cylindrical double-walled support member composed of an inner cylindrical wall and an outer cylindrical wall, disposed coaxially with the driving shaft, and engaged therewith through helical splines, a cylindrical guide member having a cylindrical portion interposed between the inner cylindrical wall and outer cylindrical wall, a plurality of claw members fixed to the outer cylindrical wall for retaining tools, and a servomotor for rotating the driving shaft clockwise and counterclockwise. In an outer periphery of the cylindrical portion of the guide member are formed a plurality of axially extending straight grooves, each having an inclined side surface at respective tip ends, which extends in one direction, and an engaging member biassed by a spring member projects into one of the straight grooves so as to be engaged therewith.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: March 6, 1990
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Toshihito Kawamura, Akira Matsuzawa
  • Patent number: 4003166
    Abstract: A loading apparatus for loading non-circular workpieces onto a spindle chuck rotatably supported upon a headstock of a machine tool includes a pivotable transfer arm having a pair of grippers at the opposite ends thereof for transferring the workpieces from a charging device to a shifting device, the latter of which is disposed in axial alignment with the axis of the spindle chuck at a position spaced from the headstock and which is adapted to mount the workpiece upon the spindle chuck as a result of a shifting movement. The charging means for conveying the workpieces is disposed in parallel relationship with the shifting means and is provided with shutter means presenting the workpieces in serial fashion. The apparatus also includes an aspect adjusting mechanism by which the workpiece presented to the transfer arm is adjusted with respect to the angular position thereof.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: January 18, 1977
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventor: Toshihito Kawamura