Patents Assigned to Proto Planning Co.
  • Small press
    Patent number: 4475374
    Abstract: A small press or cutting die assembly includes a small prime mover and suitable reduction gearing for driving an eccentric cam. A rockable lever bears on the cam either directly or through intermediate means, the lever being used to drive the pressing or cutting die assembly which is connected through shafts to the rocking lever and a stationary reaction member, respectively.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: October 9, 1984
    Assignees: Japan Storage Battery Limited, Proto Planning Co.
    Inventors: Yasuharu Sakai, Kazuhiro Matsui
  • Electric pressure connecting machine
    Patent number: D272512
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: February 7, 1984
    Assignees: Japan Storage Battery Company Limited, Proto Planning Co.
    Inventors: Yasuharu Sakai, Kazuhiro Matsui