Patents Assigned to Sumikin Precision Forge Inc.
  • Pin-finned forged heat sink
    Patent number: 5369301
    Abstract: Pin-finned heat sink having good heat dissipating characteristics satisfy the following inequality: ##EQU1## where d is the diameter of pins, c is the distance between pins, and h is the height of pins. This heat sink can increase the level of integration of semiconductor devices with which it is used.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: November 29, 1994
    Assignees: Sumitomo Metal Industries, Ltd., Sumikin Precision Forge Inc.
    Inventors: Chihiro Hayashi, Kimihiko Ohminato