Patents by Inventor Hisayoshi Tokunaga

Hisayoshi Tokunaga 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).

  • Harvester for root vegetables
    Patent number: 5431231
    Abstract: A harvester for root vegetables has a body, a pair of crawlers for supporting and moving the body, and an engine for driving the crawlers. A picker/conveyer device is longitudinally provided on the body and downwardly inclined for picking up root vegetables, and a stalk cutter device is provided under the picker/conveyer device at a rear portion thereof for cutting off a stalk from a root.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: July 11, 1995
    Assignee: Kabashi Kogyo Co., Ltd.
    Inventors: Touru Abe, Toshiyuki Kobuchi, Hisayoshi Tokunaga, Takeshi Kobashi