Patents by Inventor Yoshihisa Oda

Yoshihisa Oda 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).

  • Sufidomaidocarboxylic acids, method for production thereof, and use therefor
    Patent number: 6534659
    Abstract: Novel sulfidoamidocarboxylic acids (salts), a method for the production thereof, and uses therefor are provided. Sulfidoamidocarboxylic acids (salt) with a thiazolidine residue such as dimethylthiazolidine or methylthiazolidine or thiazolidine residue (residues), or a polycarboxylic acid (salt) residue such as dicarboboxylic acid (salt) or tricarboxylic acid (salt) or tetracarboxylic acid (salt) residue, a method for the production thereof, and uses therefor are also provided.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: March 18, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventor: Yoshihisa Oda
  • Modified polyaspartic acid, method for production thereof and use thereof
    Patent number: 6355771
    Abstract: A modified polyaspartic acid having a defined branched structure in the main chain thereof is provided. An anhydro polyaspartic acid is modified by a novel method of modification using a mercapto amine precursor, mercapto amine, or a salt of mercapto amine, using a mercapto amine precursor, mercapto amine, or a salt of mercapto amine and aspartic acid or a salt of aspartic acid as a modifying agent, and using no reaction solvent.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: March 12, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventor: Yoshihisa Oda
  • Sufidomaidocarboxylic acids, method for production thereof, and use therefor
    Publication number: 20010047096
    Abstract: Novel sulfidoamidocarboxylic acids (salts), a method for the production thereof, and uses therefor are provided. Sulfidoamidocarboxylic acids (salt) with a thiazolidine residue such as dimethylthiazolidine or methylthiazolidine or thiazolidine residue (residues), or a polycarboxylic acid (salt) residue such as dicarboboxylic acid (salt) or tricarboxylic acid (salt) or tetracarboxylic acid (salt) residue, a method for the production thereof, and uses therefor are also provided.
    Type: Application
    Filed: April 23, 2001
    Publication date: November 29, 2001
    Inventor: Yoshihisa Oda