Patents Assigned to Tohoseiki Co., Inc.
  • Choke tube
    Patent number: 7140140
    Abstract: Different colors are prepared for inner shapes that define different design ballistic patterns. Wear resistant coatings of the different colors are applied over outer surfaces of tube bodies having the design ballistic patterns corresponding to the colors of the wear resistant coatings to allow the design ballistic patterns to be identified by the colors of the wear resistant coatings.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: November 28, 2006
    Assignee: Tohoseiki Co., Inc.
    Inventor: Ryosuke Yoshitaka