Patents by Inventor Sadamu Toida

Sadamu Toida 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).

  • Electrically conductive polymer composition and solid electrolytic capacitor using the same
    Patent number: 7379290
    Abstract: An electrically conductive polymer composition contains an electrically conductive polymer obtained by using a polymer in the form of cations composed of repeating structural units of 3,4-ethylene dioxythiophene and polystyrene sulfonic acid as anions and further contains naphthalene sulfonic acid as an additive. A solid electrolytic capacitor 101 or a surface-mount transmission line element 102 has a polypyrrole conductive polymer layer 3 as a first solid electrolyte and a poly(3,4-ethylene dioxythiophene) conductive polymer layer 4 as a second solid electrolyte.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: May 27, 2008
    Assignee: NEC TOKIN Corporation
    Inventors: Sadamu Toida, Shinji Arai, Kenji Araki, Katsuhiro Yoshida, Tadamasa Asami, Takeshi Saitou, Yuuichi Maruko
  • Electrically conductive polymer composition and solid electrolytic capacitor using the same
    Patent number: 7312978
    Abstract: An electrically conductive polymer composition contains an electrically conductive polymer obtained by using a polymer in the form of cations composed of repeating structural units of 3,4-ethylene dioxythiophene and polystyrene sulfonic acid as anions and further contains naphthalene sulfonic acid as an additive. A solid electrolytic capacitor 101 or a surface-mount transmission line element 102 has a polypyrrole conductive polymer layer 3 as a first solid electrolyte and a poly(3,4-ethylene dioxythiophene) conductive polymer layer 4 as a second solid electrolyte.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: December 25, 2007
    Assignee: NEC TOKIN Corporation
    Inventors: Sadamu Toida, Shinji Arai, Kenji Araki, Katsuhiro Yoshida, Tadamasa Asami, Takeshi Saitou, Yuuichi Maruko
  • Solid electrolytic capacitor
    Patent number: 7268997
    Abstract: An aluminum solid electrolytic capacitor (conductive polymer type solid electrolytic capacitor) has an anodic oxide film layer, a conductive polymer layer, and a polystyrene sulfonate layer interposed between the anodic oxide film layer and the conductive polymer layer. A transmission line element has a cathode portion formed on a central portion of an aluminum substrate in an aluminum solid electrolytic capacitor. The transmission line element also has a pair of anode terminal areas located at both sides of the cathode portion on the aluminum substrate and is configured to supply a current between the pair of anode terminal areas.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: September 11, 2007
    Inventors: Takeshi Saitou, Takeo Kasuga, Katsuhiro Yoshida, Sadamu Toida
  • Solid electrolytic capacitor
    Publication number: 20070047178
    Abstract: An aluminum solid electrolytic capacitor (conductive polymer type solid electrolytic capacitor) has an anodic oxide film layer, a conductive polymer layer, and a polystyrene sulfonate layer interposed between the anodic oxide film layer and the conductive polymer layer. A transmission line element has a cathode portion formed on a central portion of an aluminum substrate in an aluminum solid electrolytic capacitor. The transmission line element also has a pair of anode terminal areas located at both sides of the cathode portion on the aluminum substrate and is configured to supply a current between the pair of anode terminal areas.
    Type: Application
    Filed: August 22, 2006
    Publication date: March 1, 2007
    Inventors: Takeshi Saitou, Takeo Kasuga, Katsuhiro Yoshida, Sadamu Toida
  • Electrically conductive polymer composition and solid electrolytic capacitor using the same
    Publication number: 20060187617
    Abstract: An electrically conductive polymer composition contains an electrically conductive polymer obtained by using a polymer in the form of cations composed of repeating structural units of 3,4-ethylene dioxythiophene and polystyrene sulfonic acid as anions and further contains naphthalene sulfonic acid as an additive. A solid electrolytic capacitor 101 or a surface-mount transmission line element 102 has a polypyrrole conductive polymer layer 3 as a first solid electrolyte and a poly(3,4-ethylene dioxythiophene) conductive polymer layer 4 as a second solid electrolyte.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 24, 2006
    Inventors: Sadamu Toida, Shinji Arai, Kenji Araki, Katsuhiro Yoshida, Tadamasa Asami, Takeshi Saitou, Yuuichi Maruko