Patents by Inventor Shunichi Osawa

Shunichi Osawa 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).

  • Electroluminescence display
    Patent number: 5482614
    Abstract: An EL lamp having a higher luminescence efficiency and a process for manufacturing the same are provided. The EL element includes an aluminum foil having at least one specularly polished surface, an anodized oxide film formed on the specularly polished surface of the aluminum foil, a light emitting EL layer formed directly on the film, and a transparent electrode formed on the light emitting EL layer. The process for manufacturing an EL lamp includes the steps of polishing specularly at least one of the surfaces of an aluminum foil, forming an anodized oxide film on the specularly polished surface of the aluminum foil, and forming directly on the aluminum oxide film a light emitting EL layer and a transparent electrode.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: January 9, 1996
    Assignees: Stanley Electric Co., Ltd., Japan Metals & Chemicals Co., Ltd.
    Inventors: Kenichi Kondo, Takahiro Saida, Shuichi Taya, Toyoshi Iida, Takeshi Sotomura, Yuko Fujii, Keiji Sato, Mamoru Takahashi, Sadayasu Yamakawa, Shunichi Osawa
  • Electroluminescence display
    Patent number: 5359261
    Abstract: An EL lamp having a higher luminescence efficiency and a process for manufacturing the same are provided. The EL element includes an aluminum foil having at least one specularly polished surface, an anodized oxide film formed on the specularly polished surface of the aluminum foil, a light emitting EL layer formed directly on the film, and a transparent electrode formed on the light emitting EL layer. The process for manufacturing an EL lamp includes the steps of polishing specularly at least one of the surfaces of an aluminum foil, forming an anodized oxide film on the specularly polished surface of the aluminum foil, and forming directly on the aluminum oxide film a light emitting EL layer and a transparent electrode.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: October 25, 1994
    Assignees: Stanley Electric Co., Ltd., Japan Metals & Chemicals Co., Ltd.
    Inventors: Kenichi Kondo, Takahiro Saida, Shuichi Taya, Toyoshi Iida, Takeshi Sotomura, Yuko Fujii, Keiji Sato, Mamoru Takahashi, Sadayasu Yamakawa, Shunichi Osawa