Patents by Inventor Shinjiro Yukawa

Shinjiro Yukawa 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: 4809799
    Abstract: A power unit mounting structure through which a power unit of an automotive vehicle is supported to a vehicle body. The power unit mounting structure consists of a vehicle body side mount bracket bolted at its one end section to the vehicle body, and a power unit side mount bracket securely connected at its one end section to a transmission case of the power unit. The other end sections of the vehicle body side and power unit side mount brackets are elastically connected through an insulator member with each other. The insulator member is securely disposed inside a rigid support member secured to the other end section of the vehicle body side mount bracket. The insulator member is located lower in level than a joint portion of the vehicle body side mount bracket with the vehicle body. Additionally, a support member is disposed between the insulator support member and a center frame member securely connected to the vehicle body at the joint portion, thereby reinforcing the vehicle body side mount bracket.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: March 7, 1989
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoichi Ozaki, Shinjiro Yukawa, Takanobu Ide, Masami Tsuji
  • Patent number: 4630707
    Abstract: A sound-absorbing structure in a vehicular compartment can prevent the air within the compartment from passing out through the lining and thus prevent deposition of dust onto the inner surface of the lining. The structure includes a panel forming part of a vehicular body and allowing air leakage, a porous sound-absorbing lining separated from the inner surface of the panel by a space and a partition for preventing air leakage, the partition being air-impermeable and disposed in the space. The lining and the partition define an air chamber enhancing the sound-absorbing properties of the lining.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: December 23, 1986
    Assignee: Nissan Motor Company, Limited
    Inventor: Shinjiro Yukawa