Patents by Inventor Kenji Kuroda

Kenji Kuroda 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).

  • Ultra-black film and method of manufacturing the same
    Patent number: 5079643
    Abstract: An ultra-black film is disclosed, which essentially consists of a base, a Ni-P alloy layer formed on said base and a phosphate layer formed on said Ni-P layer, the spectral reflectance of said ultra-black film being 0.04 to 0.4%. The invention provides a no reflection optical terminator comprising a cap having a recessed formed in one end surface and containing an ultra-black film on the surface of said recess.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: January 7, 1992
    Assignee: Anritsu Corporation
    Inventors: Masao Horiuti, Shunichi Kodama, Kenji Kuroda
  • Method of manufacturing ultra-black film
    Patent number: 5074957
    Abstract: An ultra-black film is disclosed, which essentially consists of a base, a Ni-P alloy layer formed on said base and a phosphate layer formed on said Ni-P layer, the spectral reflectance of said ultra-black film being 0.04 to 0.4%. The ultra-black film is obtainable by one of four methods, i.e.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: December 24, 1991
    Assignee: Anritsu Corporation
    Inventors: Masao Horiuti, Shunichi Kodama, Kenji Kuroda
  • Ultra-black film and method of manufacturing the same
    Patent number: 4984855
    Abstract: An ultra-black film is disclosed, which essentially consists of a base, a Ni-P alloy layer formed on said base and a phosphate layer formed on said Ni-P layer, the spectral reflectance of said ultra-black film being 0.04 to 0.4%. The ultra-black film is obtainable by one of four methods, i.e.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: January 15, 1991
    Assignee: Anritsu Corporation
    Inventors: Masao Horiuti, Shunichi Kodama, Kenji Kuroda