Patents by Inventor Yukiko Saeki

Yukiko Saeki 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).

  • Focal point adjustment apparatus and method applied to microscopes
    Patent number: 6043475
    Abstract: A focal point adjustment apparatus applied to an optical apparatus with a projection optical system, comprises, an object lens, a stage on which a plate member on which a subject is put for measurement is placed, provision unit for providing the thickness of the plate member for measurement, determining unit for determining data on the distance between the object lens and the stage on the basis of the thickness of the plate member for measurement provided by the provision unit, and focusing unit for adjusting the distance between the object lens and the stage on the basis of the data on the distance between the object lens and the stage determined by the determining unit.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: March 28, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masakazu Shimada, Takashi Nagano, Takashi Yoneyama, Nobuyuki Nagasawa, Hideaki Endo, Jitsunari Kojima, Atsuhiro Tsuchiya, Yukiko Saeki