Patents by Inventor Shigeo Kiyono

Shigeo Kiyono 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).

  • Heat-resistant epoxy resin composition having excellent stability at normal temperature and curing agent for epoxy resin
    Patent number: 5610209
    Abstract: A newly-blended one part system heat-resistant epoxy resin composition which exhibits excellent stability at room temperature, quickly undergoes the curing reaction, molded within short periods of time, and, after cured, exhibits excellent Tg, resistance against the water, resistance against degradation by heat, and a variety of excellent properties in combination. The heat-resistant epoxy resin composition having excellent stability at room temperature comprises an epoxy compound having two or more epoxy groups, a curing agent which comprises a naphthalenedicarboxylic dihydrazide as a main component, and a ceramic whisker as a filler.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 11, 1997
    Assignee: Japan Hydrazine Co., Ltd.
    Inventor: Shigeo Kiyono