Patents Assigned to Showa Machine Industries Co., Ltd.
  • Drill assembly
    Patent number: 4248555
    Abstract: A drill assembly has two inserts clamped in the respective radial recesses formed in the body. One insert has a straight edge and the other insert has a notched edge. The arrangement is such that the notched edge of the other insert is disposed slightly above the straight edge of one insert.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: February 3, 1981
    Assignee: Showa Machine Industries Co., Ltd.
    Inventor: Masanori Satou
  • Tap holder
    Patent number: 4174918
    Abstract: A tap holder includes a holder body having at one end a bore for connecting a spindle of a machine and at the other end a cylindrical housing, a collet axially slidably mounted within the housing and connected to the housing through a clutch, and a spring detachably connected at one end to the holder body and slidably and rotatably connected at the other end to the collet so as to provide resilient movement of the collet.
    Type: Grant
    Filed: April 18, 1978
    Date of Patent: November 20, 1979
    Assignee: Showa Machine Industries Co., Ltd.
    Inventor: Yukio Tanaka