Patents by Inventor Yasuhito Tsujii

Yasuhito Tsujii 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).

  • Method for continuous production of polyamide
    Patent number: 7381788
    Abstract: Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: June 3, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasuhito Tsujii, Gaku Maruyama, Kaoru Ogawa, Yoshinori Takada, Kazuhisa Koishi, Kenta Susuki
  • Method for continuous production of polyamide
    Publication number: 20060122360
    Abstract: Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide.
    Type: Application
    Filed: August 27, 2003
    Publication date: June 8, 2006
    Inventors: Yasuhito Tsujii, Gaku Maruyama, Kaoru Ogawa, Yoshinori Takada, Kazuhisa Koishi, Kenta Susuki