Patents by Inventor Tadamitu Hamasaki

Tadamitu Hamasaki 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).

  • Propylene polymer composition and its foam moldings
    Patent number: 6710130
    Abstract: A propylene polymer composition of high melt tension, which is especially favorable for foam moldings of uniform thickness, and foam moldings thereof having a uniform thickness, are obtained by melt-kneading a polymer mixture of a specific ethylene polymer (A) and a specific olefin multi-stage polymer (B) to satisfy the following formula: Log(MS)>0.91−0.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: March 23, 2004
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Akira Yamauchi, Yoshitaka Kobayashi, Tadamitu Hamasaki, Shunji Kawazoe, Jun Shinozaki, Hiroyuki Maehara
  • Propylene polymer composition and its foam moldings
    Publication number: 20020183454
    Abstract: A propylene polymer composition of high melt tension, which is especially favorable for foam moldings of uniform thickness, and its foam moldings of uniform thickness are obtained by melt-kneading a polymer mixture of a specific ethylene polymer (A) and a specific olefin multi-stage polymer (B) to satisfy the following formula:
    Type: Application
    Filed: March 29, 2002
    Publication date: December 5, 2002
    Inventors: Akira Yamauchi, Yoshitaka Kobayashi, Tadamitu Hamasaki, Shunji Kawazoe, Jun Shinozaki, Hiroyuki Maehara