Patents by Inventor Hiroshi Mita

Hiroshi Mita 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).

  • Working material for construction or repair
    Patent number: 4898617
    Abstract: A working material for construction or repair comprising (A) a mixture of 0.5 to 30% by weight of (a-1) a hydroxide of a divalent or higher basic metal, 10 to 99% by weight of (a-2) an aggregate and 0.5 to 70% of (a-3) a bituminous substance, the total amount of these materials (a-1), (a-2) and (a-3) being 100% by weight, and covering the mixture (A), (C) oxidized rosin or a mixture of (C) oxidized rosin with (D) a compound containing more than one carboxy group per molecule on an average and/or (B) a liquid hydrocarbon or a vegetable oil.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: February 6, 1990
    Assignees: Dainippon Ink & Chemicals, Inc., Taisei Road Construction Co., Ltd.
    Inventors: Masatoshi Motomura, Ichiro Muramatsu, Noboru Okoshi, Yoshitami Araki, Kenichiro Nomura, Takehisa Kozai, Hiroshi Mita