Patents by Inventor Akinobu Mizoguchi

Akinobu Mizoguchi 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).

  • Porous polyurethane sheet
    Patent number: 5798165
    Abstract: A porous sheet is obtained by wet coagulating a polyurethane comprising a soft segment component of repeating units from a polycarbonate, those from a diethylene glycol-based polyester and those from a tetramethylene glycol-based polyester and a hard segment component of an aromatic diisocyanate and ethylene glycol. The polyurethane has excellent processability such as wet coagulatability and the obtained porous sheet has good durability and flexibility, in particular flexibility at low temperatures and is well usable for leather-like sheets.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: August 25, 1998
    Assignee: Kuraray Co., Ltd.
    Inventors: Akinobu Mizoguchi, Shinji Nakanishi, Toshiyuki Akasawa
  • Porous polyurethane sheet
    Patent number: 5648151
    Abstract: A porous sheet is obtained by wet coagulating a polyurethane comprising a soft segment component of repeating units from a polycarbonate, those from a diethylene glycol-based polyester and those from a tetramethylene glycol-based polyester and a hard segment component of an aromatic diisocyanate and ethylene glycol. The polyurethane has excellent processability such as wet coagulatability and the obtained porous sheet has good durability and flexibility, in particular flexibility at low temperatures and is well usable for leather-like sheets.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: July 15, 1997
    Assignee: Kuraray Co., Ltd.
    Inventors: Akinobu Mizoguchi, Shinji Nakanishi, Toshiyuki Akasawa