Patents by Inventor Hiroatsu Moriyama

Hiroatsu Moriyama 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).

  • Aromatic polyester of 2,6 and/or 2,7 naphthalene dicarboxylic acid
    Patent number: 3935166
    Abstract: A linear aromatic polyester comprising, in the polymer molecule, at least 50 mole % of a repeating unit being represented by the formula ##SPC1##In whichR.sub.1 and R.sub.2 are the same or different and represent an alkyl group of 1-3 carbons, n is an integer of 1-6, X is a halogen atom and m is 0, 1 or 2,With an intrinsic viscosity of 0.3 or more when measured at 35.degree.C. by use of orthochlorophenol as a solvent.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: January 27, 1976
    Assignee: Teijin Limited
    Inventors: Tamaki Kanai, Takashi Yamagishi, Tetsuya Ohta, Hiroatsu Moriyama