Patents by Inventor Masahito Niitu

Masahito Niitu 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).

  • Molded foam and mold
    Patent number: 7947356
    Abstract: A molded foam containing no voids and a mold for forming such a molded foam are provided. A molded foam 5 has an external corner 5a where a small rib 10 is formed and a recessed step 7 where thin plate-like ribs 11 are formed. The rib 10 has a triangular cross-sectional shape in a direction perpendicular to the longitudinal direction of the recessed step 7. The rib 10 is tapered from the base to an end thereof in a direction in which the rib 10 protrudes. The ribs 11 are arranged at intervals in the longitudinal direction of the recessed step 7.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: May 24, 2011
    Assignee: Bridgestone Corporation
    Inventors: Yutaka Hirata, Masahito Niitu
  • Molded foam and mold
    Publication number: 20070281132
    Abstract: A molded foam containing no voids and a mold for forming such a molded foam are provided. A molded foam 5 has an external corner 5a where a small rib 10 is formed and a recessed step 7 where thin plate-like ribs 11 are formed. The rib 10 has a triangular cross-sectional shape in a direction perpendicular to the longitudinal direction of the recessed step 7. The rib 10 is tapered from the base to an end thereof in a direction in which the rib 10 protrudes. The ribs 11 are arranged at intervals in the longitudinal direction of the recessed step 7.
    Type: Application
    Filed: February 27, 2007
    Publication date: December 6, 2007
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yutaka Hirata, Masahito Niitu