Patents by Inventor Maiko Yamazaki

Maiko Yamazaki 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).

  • Polycarboxylic acid anhydride and use thereof
    Patent number: 9873762
    Abstract: The present invention relates to a polycarboxylic acid anhydride having a structural unit represented by the following Formula (1). The present invention provides a novel polycarboxylic acid anhydride. When the polycarboxylic acid anhydride is used, for example, as an epoxy resin-curing agent, the balance of the composition of the resin composition is stabilized, and a resin molded article having excellent heat resistance, transparency, thermal yellowing resistance, surface hardness, solvent resistance, flexibility, and adhesiveness is thus provided.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: January 23, 2018
    Assignee: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Hideyuki Yoshikawa, Takayuki Nagashimada, Maiko Yamazaki, Eriko Harada, Taiki Tsuji, Masahiko Yamanaka, Taro Yamazaki
  • NOVEL POLYCARBOXYLIC ACID ANHYDRIDE AND USE THEREOF
    Publication number: 20160075819
    Abstract: The present invention relates to a polycarboxylic acid anhydride having a structural unit represented by the following Formula (1). The present invention provides a novel polycarboxylic acid anhydride. When the polycarboxylic acid anhydride is used, for example, as an epoxy resin-curing agent, the balance of the composition of the resin composition is stabilized, and a resin molded article having excellent heat resistance, transparency, thermal yellowing resistance, surface hardness, solvent resistance, flexibility, and adhesiveness is thus provided.
    Type: Application
    Filed: April 18, 2014
    Publication date: March 17, 2016
    Applicant: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Hideyuki Yoshikawa, Takayuki Nagashimada, Maiko Yamazaki, Eriko Harada, Taiki Tsuji, Masahiko Yamanaka, Taro Yamazaki