Patents by Inventor Yasunori Sennou

Yasunori Sennou 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).

  • Materials for growing algae and artificial fishing banks
    Patent number: 6199317
    Abstract: Vitreous, algae growing materials, release stably ferrous ions, over long periods of time. The duration of ion release can be controlled as desired by adjusting the particle size of the materials. The vitreous, algae growing, materials can be converted into porous forms or fabricated into at least parts of structures. The vitreous, algae growing, materials consist essentially of 15 to 50 weight percent SiO2, 1 to 35 weight percent either or both of Na2O and K2O, 30 to 70 weight percent B2O3, and 1 to 40 weight prercent of either or both of FeO and Fe2O3. Increasing the content of boron facilitates the release of ferrous ions from the vitreous, algae growing, materials.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: March 13, 2001
    Assignees: Tetra Co., Ltd, Toyo Glass Company Limited
    Inventors: Masamichi Saiki, Akira Watanuki, Norikazu Hirose, Toru Aota, Shuuji Kitao, Yasunori Sennou, Keiko Horikawa