Patents by Inventor Koji Tsutsui

Koji Tsutsui 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).

  • Polyether, active-hydrogen ingredient, resin-forming composition, and process for producing foam
    Patent number: 6831112
    Abstract: The present invention relates to polyether compounds, active hydrogen compounds and resin-forming compositions composed of the polyols, and methods for producing foams by employing the active hydrogen components. These polyether compounds have a decreased number of moles of added EO thereby maintaining the hydrophobicity and have sufficient reactivity as polyol components of resins, thereby having high reaction rates. Therefore, it is possible to provide resins having excellent resin properties (tensile strength, flexural strength, water-absorption swelling ratio, etc.).
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: December 14, 2004
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Motonao Kaku, Hidefumi Ohta, Hideo Kitagawa, Kenji Nishiyama, Munekazu Satake, Kunikiyo Yoshio, Koji Tsutsui
  • Polyether, active-hydrogen ingredient , resin-forming composition, and process for producing foam
    Publication number: 20030100623
    Abstract: The present invention relates to polyether compounds, active hydrogen compounds and resin-forming compositions composed of the polyols, and methods for producing foams by employing the active hydrogen components. These polyether compounds have a decreased number of moles of added EO thereby maintaining the hydrophobicity and have sufficient reactivity as polyol components of resins, thereby having high reaction rates. Therefore, it is possible to provide resins having excellent resin properties (tensile strength, flexural strength, water-absorption swelling ratio, etc.).
    Type: Application
    Filed: May 24, 2002
    Publication date: May 29, 2003
    Inventors: Motonao Kaku, Hidefumi Ohta, Hideo Kitagawa, Kenji Nishiyama, Munekazu Satake, Kunikiyo Yoshio, Koji Tsutsui