Patents by Inventor Kiyosei Kondo

Kiyosei Kondo 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).

  • Contact lens and method of designing the same
    Patent number: 6726323
    Abstract: A contact lens wherein a dioptric power P is held within a range of −10-0 diopters, a back junction is located outward of a front junction in a diametric direction orthogonal to a center axis of the lens, a central lens thickness TC measures 0.03-0.50 mm along the center axis, a front junction lens thickness TFJ measures 0.05 mm or more, and a back-junction lens thickness TBJ is determined depending upon said dioptric power P so as to satisfy a following expression: &Sgr;(Ai·10−i·Pi)≦TBJ/TFJ≦&Sgr;(Bi·10−i·Pi) where, A0=+1.2382 A1=−0.1741 A2=−1.4711 A3=−0.9355 B0=+1.4699 B1=−0.2523 B2=−1.9897 B3=−1.2603.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: April 27, 2004
    Assignee: Menicon Co., Ltd.
    Inventors: Kazuya Miyamura, Tadashi Sawano, Arata Kouzai, Kiyosei Kondo
  • Contact lens and method of designing the same
    Publication number: 20030103187
    Abstract: A contact lens wherein a dioptric power P is held within a range of −10-0 diopters, a back junction is located outward of a front junction in a diametric direction orthogonal to a center axis of the lens, a central lens thickness TC measures 0.03-0.50 mm along the center axis, a front junction lens thickness TFJ measures 0.
    Type: Application
    Filed: November 29, 2002
    Publication date: June 5, 2003
    Applicant: Menicon Co., Ltd.
    Inventors: Kazuya Miyamura, Tadashi Sawano, Arata Kouzai, Kiyosei Kondo