Patents by Inventor Junichi Shoudai

Junichi Shoudai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Molding apparatus
    Patent number: 5639488
    Abstract: There is disclosed a molding apparatus which includes an ejector pin (16) having, at its forward end, an ejecting portion (33) permitted to abut against an end surface of a tubular elastic resin product (28) and gradually flaring out toward a forward end thereof, and an annular recess (9) for receiving an annular edge portion (26), whereby the tubular elastic resin product (28) is released from a cavity (22) without damages to a base portion of the annular edge portion (26).
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: June 17, 1997
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Hironobu Nakano, Masatoshi Nagata, Junichi Shoudai