Patents by Inventor Toshiyuki Kitajima

Toshiyuki Kitajima 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: 9517709
    Abstract: A vehicle seat is obtained capable of suppressing the occurrence of wrinkles in natural leather employed in a cover while suppressing a reduction in seating comfort of the seat. A non-woven fabric is disposed between a foam member and a foam member, so as to cover a portion of contact with the buttocks of a seated occupant, as viewed from above. The non-woven fabric suppresses extension and contraction of natural leather at the pressed portion, thereby suppressing the occurrence of wrinkles in the natural leather at the pressed portion. By only suppressing the extension-contraction amount of the natural leather at the portion where wrinkles are liable to occur, the occurrence of wrinkles in the natural leather can be suppressed while suppressing a reduction in the seating comfort of the seat.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 13, 2016
    Assignee: NHK SPRING CO., LTD.
    Inventors: Toshiyuki Kitajima, Tuyoshi Mutoh
  • Publication number: 20150291070
    Abstract: A vehicle seat is obtained capable of suppressing the occurrence of wrinkles in natural leather employed in a cover while suppressing a reduction in seating comfort of the seat. A non-woven fabric is disposed between a foam member and a foam member, so as to cover a portion of contact with the buttocks of a seated occupant, as viewed from above. The non-woven fabric suppresses extension and contraction of natural leather at the pressed portion, thereby suppressing the occurrence of wrinkles in the natural leather at the pressed portion. By only suppressing the extension-contraction amount of the natural leather at the portion where wrinkles are liable to occur, the occurrence of wrinkles in the natural leather can be suppressed while suppressing a reduction in the seating comfort of the seat.
    Type: Application
    Filed: September 6, 2013
    Publication date: October 15, 2015
    Inventors: Toshiyuki Kitajima, Tuyoshi Mutoh