Patents by Inventor Jitsuo Suzuki

Jitsuo Suzuki 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).

  • Extrusion device for producing honeycomb structures
    Patent number: 4349329
    Abstract: An extrusion device comprises a die provided with disconnected feed passageways and interconnected grid-shaped extrusion slots and a die mask which covers the outer peripheral portion of the die on the extrudable material outlet side through a pooling zone. The width of the uncovered grid shaped extrusion slots along the die mask is made larger on the extrudable material outlet side compared with that on the extrudable material inlet side. The extrudable material is supplied from the covered extrusion slots into the uncovered extrusion slots through the pooling zone.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: September 14, 1982
    Assignee: Nippon Soken, Inc.
    Inventors: Junichiro Naito, Shinichi Yamamoto, Jitsuo Suzuki, Mitsuru Asano