Patents by Inventor Taira Harada

Taira Harada 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).

  • Patent number: 5500246
    Abstract: A water-based coating composition that does not use an organic solvent is formed by dispersing a resin composition into an aqueous medium. The water-based coating composition has excellent stability over time. The coating film obtained from the composition has excellent retort resistance, adhesion to metals, processability and chemical resistance; and it can be cured at relatively low temperatures.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: March 19, 1996
    Inventors: Kenichi Morizono, Taira Harada
  • Patent number: 5166184
    Abstract: A normally liquid epoxy resin obtainable by reaction of a bisphenol based oligocarbonate having terminal phenolic hydroxyl groups with an epihalohydrin, followed by dehydrohalogenation. The epoxy resin is capable of forming a tough cured product having improved flexural strength and flexural modulus. A process for the production of an epoxy resin foam in which a polyepoxy compound is crosslinked and simultaneously foamed by the aid of carbonate oligomers having terminal phenolic hydroxyl groups. The product is highly flexible against compression, bending and warp.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: November 24, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Michio Hashimoto, Taira Harada, Yoshihisa Kiso, Isao Kaneko, Gorou Suzuki
  • Patent number: 4370502
    Abstract: A process for producing p-nitroaniline, which comprises nitrating an .alpha.-methylbenzalaniline of the formula ##STR1## wherein R represents an alkyl group having 1 to 5 carbon atoms, and n is 0 or 1,with nitric acid in the presence of a halogenated aliphatic hydrocarbon solvent and sulfuric acid to form a p-nitro-.alpha.-methylbenzalaniline of the formula ##STR2## wherein R and n are as defined above, and hydrolyzing the p-nitro-.alpha.-methylbenzalaniline.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: January 25, 1983
    Assignee: Mitsui Petrochemical Industries Ltd.
    Inventors: Taira Harada, Toyozi Shimizu, Takenori Nagaoka