Patents by Inventor Kazuyasu Watanabe

Kazuyasu Watanabe 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).

  • Solid electrolyte capacitor and manufacturing method for same
    Patent number: 9576742
    Abstract: A solid electrolyte capacitor includes an anode foil on a surface of which an oxide film is formed, a cathode foil, and a separator. A gap between the anode foil and the cathode foil is filled with a solid electrolyte which contains a conductive fine particles containing a conductive polymer compound and a hydrophilic polymer compound. The hydrophilic polymer compound has a structure expressed by a following chemical formula (I) and a structure expressed by a following chemical formula (II). —(R1—O)—??(I) —(R2—O)—??(II) In the formula (I) and the formula (II), R1 and R2 are groups selected from the set consisting of a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, and a substituted or unsubstituted phenylene, and represent mutually different groups.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: February 21, 2017
    Assignee: RUBYCON CORPORATION
    Inventors: Akihiko Komatsu, Yoshishige Sakurai, Hiroki Tsutsui, Kazuyasu Watanabe
  • SOLID ELECTROLYTE CAPACITOR AND MANUFACTURING METHOD FOR SAME
    Publication number: 20150255220
    Abstract: A solid electrolyte capacitor includes an anode foil on a surface of which an oxide film is formed, a cathode foil, and a separator. A gap between the anode foil and the cathode foil is filled with a solid electrolyte which contains a conductive fine particles containing a conductive polymer compound and a hydrophilic polymer compound. The hydrophilic polymer compound has a structure expressed by a following chemical formula (I) and a structure expressed by a following chemical formula (II). —(R1—O)—??(I) —(R2—O)—??(II) In the formula (I) and the formula (II), R1 and R2 are groups selected from the set consisting of a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, and a substituted or unsubstituted phenylene, and represent mutually different groups.
    Type: Application
    Filed: September 25, 2013
    Publication date: September 10, 2015
    Inventors: Akihiko Komatsu, Yoshishige Sakurai, Hiroki Tsutsui, Kazuyasu Watanabe