Patents by Inventor Syunichi Nagamatsu

Syunichi Nagamatsu 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).

  • N-(1-hydroxyethyl) carboxamide compound and process for producing same
    Patent number: 8697912
    Abstract: The present invention relates to an N-(1-hydroxyethyl)carboxamide compound represented by formula (1) (in the formula, RA and RB represent independently from each other a hydrogen atom or an alkyl group having 1 to 4 carbon atoms except for a case where RA and RB represent a hydrogen atom at the same time) and a method for producing the same; a method for producing an N-(1-alkoxyethyl)carboxamide compound; a method for producing an N-vinyl carboxylic acid amide compound; and a method for producing an N-vinyl carboxylic acid amide (co)polymer. An N-(1-alkoxyethyl)carboxamide compound can be obtained by reacting N-(1-hydroxyethyl)carboxamide compound with alcohol in the presence of an acid catalyst, and an N-vinyl carboxylic acid amide compound, which is a monomer of the N-vinyl carboxylic acid amide (co)polymer, can be obtained by thermally decomposing or catalytically decomposing the N-(1-alkoxyethyl)carboxamide compound.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: April 15, 2014
    Assignee: Showa Denko K.K.
    Inventors: Keisuke Ohta, Syunichi Nagamatsu, Tetsuya Ishii
  • N-(1-HYDROXYETHYL ) CARBOXAMIDE COMPOUND AND PROCESS FOR PRODUCING SAME
    Publication number: 20110294974
    Abstract: The present invention relates to an N-(1-hydroxyethyl)carboxamide compound represented by formula (1) (in the formula, RA and RB represent independently from each other a hydrogen atom or an alkyl group having 1 to 4 carbon atoms except for a case where RA and RB represent a hydrogen atom at the same time) and a method for producing the same; a method for producing an N-(1-alkoxyethyl)carboxamide compound; a method for producing an N-vinyl carboxylic acid amide compound; and a method for producing an N-vinyl carboxylic acid amide (co)polymer. An N-(1-alkoxyethyl)carboxamide compound can be obtained by reacting N-(1-hydroxyethyl)carboxamide compound with alcohol in the presence of an acid catalyst, and an N-vinyl carboxylic acid amide compound, which is a monomer of the N-vinyl carboxylic acid amide (co)polymer, can be obtained by thermally decomposing or catalytically decomposing the N-(1-alkoxyethyl)carboxamide compound.
    Type: Application
    Filed: January 5, 2010
    Publication date: December 1, 2011
    Applicant: SHOWA DENKO K.K.
    Inventors: Keisuke Ohta, Syunichi Nagamatsu, Tetsuya Ishii