Patents by Inventor Akiro Nakagawa

Akiro Nakagawa 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).

  • Double-shot molded resin article
    Patent number: 5153052
    Abstract: A double-shot molded resin article comprises a primary molding part and a secondary molding part. The secondary molding part is molded from a thermoplastic resin having a melting point higher than the melting point of the primary molding thermoplastic resin. The primary molding part has a plurality of raised portions formed upon its surface so as to be fusion bonded to the secondary molding part. These raised portions are fused by means of the secondary molten resin at the time of the secondary molding process, whereby the primary and secondary molding parts are fusion-bonded to each other.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: October 6, 1992
    Assignee: Nifco, Inc.
    Inventors: Toshie Tanaka, Akiro Nakagawa, Haruhiko Watari, Yasuhiko Ikeda