Patents by Inventor Kiyohisa Wada

Kiyohisa Wada 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).

  • Manufacturing method for semiconductor photoelectrochemical cell and semiconductor photoelectrochemical cell
    Patent number: 7927914
    Abstract: The invention provides a manufacturing method for a semiconductor photoelectrochemical cell, comprising the steps of burning a base made of titanium or a titanium alloy in an atmosphere of 700° C. to 1000° C. at a rate of temperature increase of no lower than 5° C./second so that a titanium oxide layer is formed on the surface, and thus, mixing titanium metal into said titanium oxide layer.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: April 19, 2011
    Assignee: Shiken Co., Ltd.
    Inventors: Yoshinori Nakagawa, Kiyohisa Wada
  • MANUFACTURING METHOD FOR SEMICONDUCTOR PHOTOELECTROCHEMICAL CELL AND SEMICONDUCTOR PHOTOELECTROCHEMICAL CELL
    Publication number: 20070034253
    Abstract: The invention provides a manufacturing method for a semiconductor photoelectrochemical cell, comprising the steps of burning a base made of titanium or a titanium alloy in an atmosphere of 700° C. to 1000° C. at a rate of temperature increase of no lower than 5° C./second so that a titanium oxide layer is formed on the surface, and thus, mixing titanium metal into said titanium oxide layer.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 15, 2007
    Inventors: Yoshinori NAKAGAWA, Kiyohisa WADA