Patents by Inventor Junichiro Umeda

Junichiro Umeda 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 having metallic cathode collector in direct contact with manganese dioxide electrolyte and method of producing same
    Patent number: 4105513
    Abstract: In a solid electrolyte capacitor, a metallic cathode collector layer is in direct contact with an electrolyte layer which is formed of densely accumulated manganese dioxide particles of 0.1 - 50 .mu.m. The manganese dioxide layer is formed by performing pyrolysis of manganese nitrate in a semi-closed heating chamber of a radiant furnace to offer a resistance to the outflow from the chamber of gaseous decomposition products. The collector layer is formed by spraying, preferably by plasma spraying, of a metal powder typified by copper powder.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: August 8, 1978
    Assignee: Matsushita Electric Industrial Co., Limited
    Inventors: Atsushi Nishino, Hayashi Hayakawa, Akihiko Yoshida, Junichiro Umeda