Patents by Inventor Hidetosi Otu

Hidetosi Otu 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).

  • Method and apparatus for automatically casting non-ferrous metal
    Patent number: 3972368
    Abstract: A method comprising the steps of casting molten nonferrous metal ingots, skimming scum foaming on the surface of the molten metal in each mold, cooling the molds to release ingots therefrom, stacking the ingots released from the molds to form ingot stacks each comprising a plurality of layers of ingots arranged in vertically stacked relation alternately in two different patterns, weighing the ingot stacks, and tightly binding the weighed ingot stacks with steel bands.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: August 3, 1976
    Assignees: Hachinohe Smelting Co., Ltd., Mitsui Kinzoku Engineering Service Co., Ltd., Mitsui Mining & Smelting Co., Ltd.
    Inventors: Takahiro Kikkawa, Toshinori Hirata, Waichi Miyaji, Kouichi Tokunaga, Hidetosi Otu, Mikiya Tanigawa, Yasuhiro Yamazaki