Patents by Inventor Yuuhei Maeda

Yuuhei Maeda 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).

  • Patent number: 6984631
    Abstract: A thermoplastic cellulose derivative composition of the present invention contains, as a main component, a cellulose ester having an aliphatic polyester side chain having a repeat unit having 2 to 5 carbon atoms, wherein a rate of heating loss at 200° C. is 5 wt % or less, a melt viscosity at 200° C. and 1000 sec?1 is 50 to 300 Pa·sec, and a melt tension at the time of take-up at 200° C. and 100 m/min is 0.1 to 40 mN. The present invention can provide excellent fiber products by melt spinning of the composition.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: January 10, 2006
    Assignee: Toray Industries, Inc.
    Inventors: Yoshitaka Aranishi, Hiroyuki Yamada, Yuuhei Maeda, Hiroshi Takahashi, Misa Ozaki, Yoshiyuki Nishio, Mariko Yoshioka
  • Publication number: 20040030043
    Abstract: A thermoplastic cellulose derivative composition of the present invention contains, as a main component, a cellulose ester having an aliphatic polyester side chain having a repeat unit having 2 to 5 carbon atoms, wherein a rate of heating loss at 200° C. is 5 wt % or less, a melt viscosity at 200° C. and 1000 sec−1 is 50 to 300 Pa·sec, and a melt tension at the time of take-up at 200° C. and 100 m/min is 0.1 to 40 mN. The present invention can provide excellent fiber products by melt spinning of the composition.
    Type: Application
    Filed: May 20, 2003
    Publication date: February 12, 2004
    Inventors: Yoshitaka Aranishi, Hiroyuki Yamada, Yuuhei Maeda, Hiroshi Takahashi, Misa Ozaki, Yoshiyuki Nishio, Mariko Yoshioka