Patents by Inventor Harunobu Hirayama

Harunobu Hirayama 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).

  • Cleaning cloth and cleaning apparatus
    Patent number: 6047435
    Abstract: A cleaning apparatus includes a handle for a cleaning cloth to be attached thereto, and a flat bag-like cleaning cloth having an insertion space therein. The handle is provided at a front end portion of a handle body with a head portion. The head portion is inserted into the insertion space, thereby attaching the cleaning cloth to the head portion. The cleaning cloth includes a joined portion formed by joining non-woven fabrics together and having a flat bag-like configuration defining an insertion space in the internal area of the cleaning cloth and a non-joined portion being provided at an external area of the joined portion.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: April 11, 2000
    Assignee: Kao Corporation
    Inventors: Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Fumihiko Yoshiro, Harunobu Hirayama, Masahito Hanaoka
  • Cleaning cloth and cleaning apparatus
    Patent number: 5953784
    Abstract: A cleaning apparatus includes a handle for a cleaning cloth to be attached thereto, and a flat bag-like cleaning cloth having an insertion space therein. The handle is provided at a front end portion of a handle body with a head portion. The head portion is inserted into the insertion space, thereby attaching the cleaning cloth to the head portion. The cleaning cloth includes a joined portion formed by joining non-woven fabrics together and having a flat bag-like configuration defining an insertion space in the internal area of the cleaning cloth and a non-joined portion being provided at an external area of the joined portion.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: September 21, 1999
    Assignee: Kao Corporation
    Inventors: Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Fumihiko Yoshiro, Harunobu Hirayama, Masahito Hanaoka
  • Handy mop
    Patent number: D391711
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 3, 1998
    Assignee: Kao Kabushiki Kaisha (Kao Corporation)
    Inventors: Masahito Hanaoka, Youichi Suzuki, Fumihiko Yoshiro, Harunobu Hirayama