Patents by Inventor Akira Obana

Akira Obana 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).

  • Publication number: 20230078077
    Abstract: An ocular fundus image processing device acquires a first image generated by irradiating an ocular fundus of a subject with excitation light of a blue wavelength and a second image generated by irradiating the ocular fundus with excitation light of a green wavelength, generates three trained models for predicting a correction factor for calculating a quantity of macular pigment of the subject from input images including the first image and the second image through training using three different initial values, predicts three correction factors by inputting the input images including the first image and the second image to the three trained models, calculates a statistical value of the three correction factors and derives the statistical value as the correction factor of the subject, and calculates a quantity of macular pigment of the subject on the basis of the first image and the correction factor of the subject.
    Type: Application
    Filed: January 5, 2021
    Publication date: March 16, 2023
    Applicants: HAMAMATSU PHOTONICS K.K., Social Welfare Corporation Seirei Social Welfare Community
    Inventors: Kibo OTE, Fumio HASHIMOTO, Hidenao YAMADA, Akira OBANA
  • Patent number: 6471691
    Abstract: An ophthalmic treatment apparatus uses therapy and diagnostic laser light sources whose beams are deflected two-dimensionally via an optical deflector and a galvanomirror and directed on the eye fundus to produce a fundus image on a display monitor. A photosensitive substance that accumulates specifically in neovascular regions is administered to the patient to define the region where the neovascular tissues are located. When the region is to be treated, the therapy laser light source is activated and its intensity is amplified by a controller and a driver for driving a light modulator. This arrangement assures a reliable definition of the affected region and enables only the neovascular tissues to be destroyed or sealed off because the laser intensity can be amplified at the region concerned.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: October 29, 2002
    Assignees: Kowa Company Ltd., Hamamatsu Photonics K.K.
    Inventors: Koji Kobayashi, Toru Hirano, Shigeru Sakamoto, Hideaki Niwa, Akira Obana, Tokuhiko Miki