Patents by Inventor Keizi Ohmura

Keizi Ohmura 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: 5488770
    Abstract: A vehicle such as a railroad car is constructed by connecting together side and roof blocks, each equipped with interior components, in a manner to improve the outer appearance of the connections between the side and roof blocks. Longitudinal beams of the side blocks are in contact with the under surfaces of gutters formed by the outer plate of the roof block. The side and roof blocks, equipped with the interior components, are connected together at the gutter portions by a welding which can be conducted solely outside the vehicle. Inside the vehicle, the longitudinal beams and joints secured to the side blocks are connected to lateral beams of the roof block by rivets. Thereafter, a third interior plate is provided between interior plates of the side and roof blocks. Since the connections are formed at the gutter portions, the connecting operations can easily be conducted outside the vehicle and in a manner to assure a good outer appearance.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: February 6, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Toshihisa Yamada, Toshiharu Miyamoto, Kazuo Hayashi, Ryoichi Takayama, Shinji Kobayashi, Keizi Ohmura
  • Patent number: 5333554
    Abstract: A vehicle such as a railroad car is constructed by connecting together side and roof blocks, each equipped with interior components, in a manner to improve the outer appearance of the connections between the side and roof blocks. Longitudinal beams of the side blocks are in contact with the under surfaces of gutters formed by the outer plate of the roof block. The side and roof blocks, equipped with the interior components, are connected together at the gutter portions by a welding which can be conducted solely from an exterior side of the vehicle. In the interior of the vehicle, the longitudinal beams and joints secured to the side blocks are connected to lateral beams of the roof block by rivets. Thereafter, a third interior plate is provided between interior plates of the side and roof blocks. Since the connections are formed at the gutter portions, the connecting operations can easily be conducted outside the vehicle and in a manner to assure a good from an exterior of appearance.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: August 2, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Toshihisa Yamada, Toshiharu Miyamoto, Kazuo Hayashi, Ryoichi Takayama, Shinji Kobayashi, Keizi Ohmura