Patents by Inventor Minoru Hata

Minoru Hata 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).

  • Concrete product using aggregates obtained by pulverizing melt slags and the method of fabricating the same
    Patent number: 5540771
    Abstract: A concrete product which uses 100% of the melt slags and pulverizes the melt slags into aggregates and fine powders, grinds the aggregates so that the percentage of absolute volume of the aggregates is over 60%, mixes the aggregates, fine powders, water and cement, and forms the mixture into the concrete product by vibration or press molding.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: July 30, 1996
    Assignees: Keihan Concrete Co., Osaka Gas Co., Ltd., Obayashi Corporation
    Inventors: Minoru Hata, Takeshi Tsunemi, Tohru Okui