Patents by Inventor Motoyuki Ishikawa

Motoyuki Ishikawa 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).

  • Bearing apparatus for a rotary machine having a horizontal rotating shaft
    Patent number: 4964740
    Abstract: A bearing apparatus for a rotary machine having a horizontal rotating shaft comprises a bearing for supporting the horizontal rotating shaft, a bearing box for supporting the bearing therein, a lubricating oil tank disposed in a lower portion of the bearing box for storing lubricating oil, a lubricating supply device for picking up the lubricating oil in the lubricating oil tank and supplying the lubricating oil to the bearing, and oil guide device disposed beneath the bearing and allowing the lubricating oil discharged from the bearing to flow along a side wall of the bearing box to be stored in the lubricating oil tank.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: October 23, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Masaaki Nakano, Tomoaki Inoue, Kazuhiko Kawaike, Yuji Yamamoto, Motoyuki Ishikawa