Patents by Inventor Miyuki Ueda

Miyuki Ueda 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 polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof
    Patent number: 5874184
    Abstract: A solid polymer electrolyte comprising a composite of (a) a polymeric component which comprises (i) a polymer obtained from at least one compound represented by general formula (IA), (IIA) and/or (IIIA) as described in the specification; or (ii) a polymer obtained from at least one compound having alcoholic hydroxyl groups wherein at least one hydrogen atom of said alcoholic hydroxyl groups is replaced by a unit represented by general formula (X) or (XI) as described in the specification, and (b) at least one electrolyte salt, which has a high ionic conductivity and can be made into a thin film. The present invention is also directed to an electrode comprising the solid polymer electrolyte and an electroactive substance or polarizable material; as well as a process for manufacturing the same. In addition, the present invention is directed to a primary an secondary battery having the solid polymer electrolyte, as well as a process for manufacturing the same.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: February 23, 1999
    Assignee: Showa Denko K.K.
    Inventors: Masataka Takeuchi, Koji Tokita, Miyuki Ueda, Jun Noguchi, Hideo Yashima, Eri Tamura, Kazuhiko Ooga
  • Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof
    Patent number: 5665490
    Abstract: A solid polymer electrolyte comprising a composite of (a) a polymeric component which comprises (i) a polymer obtained from at least one compound represented by general formula (IA), (IIA) and/or (IIIA) as described in the specification; or (ii) a polymer obtained from at least one compound having alcoholic hydroxyl groups wherein at least one hydrogen atom of said alcoholic hydroxyl groups is replaced by a unit represented by general formula (X) or (XI) as described in the specification, and (b) at least one electrolyte salt, which has a high ionic conductivity and can be made into a thin film. The present invention is also directed to an electrode comprising the solid polymer electrolyte and an electroactive substance or polarizable material; as well as a process for manufacturing the same. In addition, the present invention is directed to a primary and secondary battery having the solid polymer electrolyte, as well as a process for manufacturing the same.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 9, 1997
    Assignee: Showa Denko K.K.
    Inventors: Masataka Takeuchi, Koji Tokita, Miyuki Ueda, Jun Noguchi, Hideo Yashima, Eri Tamura, Kazuhiko Ooga
  • Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof
    Patent number: 5597661
    Abstract: A solid polymer electrolyte comprising a composite of (a) a polymer comprising 2-(meth)acryloyloxyethylcarbamic acid ester and (b) an electrolyte salt, which has a high ionic conductivity and can be made into a thin film. The present invention is also directed to an electrode comprising the solid polymer electrolyte and an electroactive substance or polarizable material; as well as a process for manufacturing the same. In addition, the present invention is directed to primary and secondary batteries having the solid polymer electrolyte, as well as a process for manufacturing the same. The battery according to the present invention has a high capacity, high current density, and further in the case of a secondary battery, good cyclability. Finally, the present invention is directed to a solid-state electric double layer capacitor comprising the solid polymer electrolyte, as well as a process for manufacturing the same. The electric double layer capacitor has a high output voltage and a large take-out current.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: January 28, 1997
    Assignee: Showa Denko K.K.
    Inventors: Masataka Takeuchi, Koji Tokita, Miyuki Ueda, Jun Noguchi, Hideo Yashima