Patents by Inventor Kyoji Nariai

Kyoji Nariai 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).

  • Aberration correction system and astronomical telescope having the same
    Patent number: 6038068
    Abstract: An aberration correction system having a first lens disposed at an object side; and a second lens disposed at an image side, wherein the first and second lenses have different dispersions (Abbe numbers) with respect to each other, the surface of the object side of the first lens and the surface of the image side of the second lens which is adjacent to the image have substantially common center of curvature and the first and second lenses rotate around the center of curvature.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: March 14, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunio Takeshi, Mikichi Ban, Yoshiya Matsui, Kyoji Nariai