Patents by Inventor Hirohusa Shirai

Hirohusa Shirai 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).

  • Deodorant bedding
    Patent number: 5047022
    Abstract: Deodorant bedding of this invention comprises wadding having a first fiber retaining metal complex having oxidation-reduction power and a second fiber retaining metal ion. Therefore, foul smelling substances are oxidized by the metal complex and adsorbed by metal ion complex exchange reaction, and then the bedding will be deodorized.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: September 10, 1991
    Inventors: Kaoru Hasebe, Naoki Minamide, Seigo Higaki, Hirohusa Shirai, Kouichi Hukamachi