Patents Assigned to Yugen Kaisha Koshinsha
  • Method of damping railroad noise and railroad noise damping members
    Patent number: 6402044
    Abstract: A method for reducing noises produced from a railroad when trains travel on rails. A vibration/noise damping member made of lead is fixed to the vertical rib portion of a rail, one side of a wheel, a joint bar for rails, or one side of a railroad overpass or iron bridge. The damper may have a plate shape or any other sectional shape. The vibration/noise damper effectively absorb and damp vibration energy and noises produced when trains travel on rails.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: June 11, 2002
    Assignee: Yugen Kaisha Koshinsha
    Inventor: Shozaburo Sato
  • Golf putter
    Patent number: 5769736
    Abstract: A golf putter which can stably maintain the directional stability of its head while being swung so that a golf ball can be rolled accurately along an intended line. Side walls extend rearwardly from both ends of a face portion of the putter. Each side wall carries a weight at its rear end, so that the head is lighter at its face end than its rear end. Thus, the directional stability of the head while swinging the ball improves.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: June 23, 1998
    Assignee: Yugen Kaisha Koshinsha
    Inventor: Shozaburo Sato