Patents by Inventor Takeshi Ohwada

Takeshi Ohwada 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: 8408596
    Abstract: An airbag device that may ensure an increased restraining force and a reduction of damage with respect to an occupant that is out of position or of small stature is provided. The airbag device for a passenger seat of the present invention may be disposed inside an instrument panel of a vehicle and protects an occupant inside the vehicle by inflation and deployment of an airbag when an emergency situation occurs. The airbag device includes: an airbag that is compressed into a plurality of layers in a vertical direction when not used, and inflated and deployed when an emergency situation occurs; and a restriction member that restricts the deployment of the airbag so that a deployment direction of an upper layer portion is directed toward an occupant side, wherein the upper layer portion is deployed first from among the plurality of layers of the airbag.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: April 2, 2013
    Assignee: Autoliv Development AB
    Inventors: Takashi Matsunaga, Takeshi Ohwada
  • Publication number: 20100320737
    Abstract: An airbag device that may ensure an increased restraining force and a reduction of damage with respect to an occupant that is out of position or of small stature is provided. The airbag device for a passenger seat of the present invention may be disposed inside an instrument panel of a vehicle and protects an occupant inside the vehicle by inflation and deployment of an airbag when an emergency situation occurs. The airbag device includes: an airbag that is compressed into a plurality of layers in a vertical direction when not used, and inflated and deployed when an emergency situation occurs; and a restriction member that restricts the deployment of the airbag so that a deployment direction of an upper layer portion is directed toward an occupant side, wherein the upper layer portion is deployed first from among the plurality of layers of the airbag.
    Type: Application
    Filed: August 21, 2008
    Publication date: December 23, 2010
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Takashi Matsunaga, Takeshi Ohwada
  • Patent number: 7681909
    Abstract: An airbag device according to the invention is applicable to an airbag device having an airbag that is housed in a state of being able to inflate and deploy in front of an occupant. The airbag has a center chamber positioned in the vicinity of the center on the occupant side in a deployed state, and side chambers positioned on both the left and right sides of the center chamber. Moreover the airbag is provided with a gas supply section that supplies inflation gas to inside of the side chambers, and a means for introducing inflation gas to inside of the center chamber after the side chamber. Furthermore, the side chamber has; a gas introduction space into which inflation gas from the gas supply section is introduced, an upper space that extends upward from the gas introduction space, and a lower space that extends downward from the gas introduction space.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 23, 2010
    Assignee: Autoliv Development AB
    Inventors: Takashi Idomoto, Takeshi Ohwada, Yutaka Tsuchida, Hiroya Tabushi, Chihiro Ito, Yosuke Shimizu, Shinobu Yamamoto
  • Publication number: 20070200319
    Abstract: An airbag device according to the invention is applicable to an airbag device having an airbag that is housed in a state of being able to inflate and deploy in front of an occupant. The airbag has a center chamber positioned in the vicinity of the center on the occupant side in a deployed state, and side chambers positioned on both the left and right sides of the center chamber. Moreover the airbag is provided with a gas supply section that supplies inflation gas to inside of the side chambers, and a means for introducing inflation gas to inside of the center chamber after the side chamber. Furthermore, the side chamber has; a gas introduction space into which inflation gas from the gas supply section is introduced, an upper space that extends upward from the gas introduction space, and a lower space that extends downward from the gas introduction space.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 30, 2007
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Takashi Idomoto, Takeshi Ohwada, Yutaka Tsuchida, Hiroya Tabushi, Chihiro Ito, Yosuke Shimizu, Shinobu Yamamoto
  • Patent number: 7244537
    Abstract: To provide a toner for developing an electrostatic charge image, which has a good low temperature fixing property whereby it is useful for an image-forming device of a low temperature heat fixing system using a heat roll having a surface temperature of at most 150° C. and it does not fuse to a blade or a toner transport roller, and which is excellent in durability with little change in the image quality in a continuous copying operation. A toner for developing an electrostatic charge image, having base toner particles comprising at least a binder resin and a coloring agent, wherein the base toner particles contain an oil having a surface tension of at most 30 mN/m at 25° C., and the toner has a softening point of at most 100° C.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: July 17, 2007
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Takeshi Ohwada
  • Publication number: 20060003245
    Abstract: To provide a toner for developing an electrostatic charge image, which has a good low temperature fixing property whereby it is useful for an image-forming device of a low temperature heat fixing system using a heat roll having a surface temperature of at most 150° C. and it does not fuse to a blade or a toner transport roller, and which is excellent in durability with little change in the image quality in a continuous copying operation. A toner for developing an electrostatic charge image, having base toner particles comprising at least a binder resin and a coloring agent, wherein the base toner particles contain an oil having a surface tension of at most 30 mN/m at 25° C., and the toner has a softening point of at most 100° C.
    Type: Application
    Filed: September 9, 2005
    Publication date: January 5, 2006
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Takeshi Ohwada
  • Patent number: 5851718
    Abstract: In the present invention, there is provide a toner for electrostatic image development comprising a resin, a coloring agent and a compound having at least one group represented by the formula:--O--A--CO-- ?I!wherein A represents a substituted or unsubstituted divalent hydrocarbon group.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: December 22, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Ohwada, Takashi Shintaku