Patents by Inventor Akihisa Saitoh

Akihisa Saitoh 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).

  • Polymer electrolyte membrane fuel cell
    Publication number: 20040033413
    Abstract: The present invention provides a separator for a polymer electrolyte membrane fuel cell which comprises a resin substrate and an electroconductive coating formed on the substrate.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 19, 2004
    Inventors: Jong-Jin Yoon, Il-Ji Lim, Akihisa Saitoh
  • Stabilizer for phospholipid vesicles
    Patent number: 5472951
    Abstract: An oligosaccharide lipid is provided which has 2 to 20 saccharide units, and has a hydrophobic group linked by an ether linkage to an anomer carbon on a reducing end group. A stabilizer for a phospholipid vesicle is also provided which comprises an oligosaccharide derivative having 2 to 20 saccharide units, and having a hydrophobic group linked by an amide linkage or an ether linkage to an anomer carbon on a reducing end group constituted of an aldose.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: December 5, 1995
    Assignee: Chiba Flour Milling Co., Ltd.
    Inventors: Akihisa Saitoh, Kiyoshi Yoshimura, Takanao Suzuki, Mikimasa Takisada, Shinji Takeoka, Hiromi Sakai, Eishun Tsuchida