Patents by Inventor Satoshi Doh

Satoshi Doh 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).

  • Patent number: 5812327
    Abstract: An imaging lens provided with a first component lens (L.sub.1), which is a negative meniscus lens, whose convex surface has a large curvature and faces an object to be imaged, and with a second component lens (L.sub.2) that is a convex lens having a positive power. Moreover, as a whole, the imaging lens employs at least two aspherical surfaces. Thereby, various aberrations are corrected favorably. Further, this enables the effective use of plastic lenses. In addition to the provision of the first and second component lenses, the imaging lens satisfies the following configurational conditions:0.3<f.sub.2 /F<0.99 (1)8>F>D.sub.2 (2)where F designates a focal length of the imaging lens; f.sub.2 a focal length of the second component lens (L.sub.2); and D.sub.2 the distance between the first component lens (L.sub.1) and the second component lens (L.sub.2).
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: September 22, 1998
    Assignee: Hinode Co., Ltd.
    Inventor: Satoshi Doh