Patents by Inventor Masayoshi Izumitani

Masayoshi Izumitani 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).

  • Shredder
    Patent number: 4873811
    Abstract: An improved shredder has a closing device stored inside of its housing or inside a door. As the door is opened to pull out a bag filled with shredded paper, the bag closing device automatically protrudes and the operator has only to grab the top parts of the bag and press them through a groove made in the bag closing device and an adhesive tape wraps around the bag to close it.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: October 17, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayoshi Izumitani, Akihiro Soga