Patents by Inventor Hiroshi Fujiishi

Hiroshi Fujiishi 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-ethylene copolymers and process for their preparation
    Patent number: 8063160
    Abstract: Random propylene/ethylene copolymers are provided characterized by Ethylene content in the range of 4.5-7% wt; Mw/Mn (via GPC) in the range 3.5-5.5; Mz/Mw (via GPC) lower than 4; absence of 2-1 regioinversion, and Melting Temperature (Tm) (non-nucleated grade) lower than 143° C. The said copolymers show an excellent balance of impact and optical properties which is retained even after visbreaking.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: November 22, 2011
    Assignee: Basell Poliolefine Italia, s.r.l.
    Inventors: Claudio Cavalieri, Roberto Pantaleoni, Hiroshi Fujiishi, Akihiro Otsubo
  • Propylene-ethylene copolymers and process for their preparation
    Publication number: 20110098423
    Abstract: Random propylene/ethylene copolymers are provided characterized by Ethylene content in the range of 4.5-7% wt; Mw/Mn (via GPC) in the range 3.5-5.5; Mz/Mw (via GPC) lower than 4; absence of 2-1 regioinversion, and Melting Temperature (Tm) (non-nucleated grade) lower than 143° C. The said copolymers show an excellent balance of impact and optical properties which is retained even after visbreaking.
    Type: Application
    Filed: May 9, 2006
    Publication date: April 28, 2011
    Applicant: Basell Poliolefine Italia s.r.l.
    Inventors: Hiroshi Fujiishi, Akihiro Otsubo, Claudio Cavalieri, Roberto Pantaleoni