Patents by Inventor Kazuya Matsuishi

Kazuya Matsuishi 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).

  • Hydroxymethyl-substituted polyfunctional phenols
    Patent number: 6906226
    Abstract: Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure: General structure (I) (wherein X represents: bivalent group (a) expressed by the following structure: General structure (II) (wherein R1, R2, R3 and R4 each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4); quadrivalent group (b) expressed by the following structure: General structure (III) (wherein R5 and R6 each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4); or bivalent group (c) expressed by the following structure: General structure (IV) (wherein R7 and R8 each independently represent a hydrogen atom or a monofluoromethyl, difluoromethyl or trifluoromethyl group; however, R7 and R8 cannot be both hydrogen atoms); wherein n takes 2 when X is bivalent group (a), takes 4 when X is quadrivalent group (b), or takes 2 when X is bivalent group (c)).
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 14, 2005
    Assignee: Honshu Chemical Industry Co., Ltd.
    Inventors: Kazuya Matsuishi, Takayuki Ohno, Taiichi Shiomi
  • Hydroxymethyl-substituted polyfunctional phenols
    Publication number: 20030204117
    Abstract: Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure:
    Type: Application
    Filed: April 3, 2003
    Publication date: October 30, 2003
    Inventors: Kazuya Matsuishi, Takayuki Ohno, Taiichi Shiomi