Patents by Inventor Yoji Uzawa

Yoji Uzawa 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).

  • Linear motor car system
    Patent number: 5021695
    Abstract: A linear motor car system including a horizontal conveyance path, a vertical conveyance path, and a curved conveyance path connected between the horizontal and vertical conveyance paths. A controller in the linear motor car system drives a carrier so that the cariier can ascend smoothly up the curved and vertical conveyance paths with the minimum driving energy and without accidentally falling back down the vertical path.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: June 4, 1991
    Assignee: Fujitsu Limited
    Inventors: Toshimasa Miyazaki, Yoji Uzawa, Kazuyoshi Okawa, Hiroshi Kawashima, Kazumasa Moriya, Yoshitaka Murakawa, Toshimitsu Kumagai, Akihiro Nakamura, Motohiko Itoh, Tomoyuki Kashiwazaki
  • Linear motor car system
    Patent number: 4849664
    Abstract: A linear motor car system including a horizontal conveyance path, a vertical conveyance path, and a curved conveyance path connected between the horizontal and vertical conveyance paths. A controller in the linear motor car system drives a carrier so that the carrier can ascend smoothly up the curved and vertical conveyance paths with the minimum driving energy and without accidentally falling back down the vertical path.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: July 18, 1989
    Assignee: Fujitsu Limited
    Inventors: Toshimasa Miyazaki, Yoji Uzawa, Kazuyoshi Okawa, Hiroshi Kawashima, Kazumasa Moriya, Yoshitaka Murakawa, Toshimitsu Kumagai, Akihiro Nakamura, Motohiko Itoh, Tomoyuki Kashiwazaki