Patents by Inventor Katsutoshi Naramura

Katsutoshi Naramura 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).

  • Patent number: 5839154
    Abstract: A device for removing an adhered foreign substance, such as chewing gum, from surfaces employs a reciprocating scraper that separates the substance from the surface to be cleaned. A liquid, such as cleaning solution or solvent, is optionally discharged in the vicinity of the end of the scraper to augment the separation. A vacuum device draws air and loosened matter into an opening in the nozzle and traps it in a container. Optionally, the vacuum device is attached to a nozzle movable away from and toward the scraper by pushing a handle. When the nozzle moves toward the scraper, it activates the vacuum device.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: November 24, 1998
    Assignee: Suiden Co., Ltd.
    Inventors: Yuzo Kawai, Katsutoshi Naramura, Yoshihide Takahashi