Patents by Inventor Kohtaro Idegami

Kohtaro Idegami 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: 7308315
    Abstract: It is an object of the invention to provide a vision regeneration assisting apparatus capable of assisting in vision regeneration without making a system structure complicated. In the invention, a vision regeneration assisting apparatus for regenerating a vision of a patient going blind by a disease of a retina includes a photosensor embedded in the retina of an eye of the patient and converting an optical signal into an electric signal, photographing means for photographing an object to be recognized by the patient, image processing means for carrying out an image processing to extract a feature with respect to an image of the object obtained by the photographing means, pulse light forming means for forming a luminous flux into a pulse light to induce a vision, and irradiating means provided before the eye of the patient and applying the pulse light toward the photosensor so as to be formed as an image processed by the image processing means.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: December 11, 2007
    Assignee: Nidek Co., Ltd.
    Inventors: Jun Ohta, Shigeru Nishimura, Kohtaro Idegami, Keiichiro Kagawa
  • Patent number: 7191010
    Abstract: An object of the invention is to provide an intraocular implant-type vision stimulating unit which is capable of outputting a bipolar pulse signal in a simple constitution, and is highly sensitive, compact, and low power consumptive. In the invention, an intraocular implant-type vision stimulating unit for artificially generating the vision or a portion of the vision includes: a photoelectric conversion circuit for converting incoming light into an electrical signal; a pulse conversion circuit for converting the electrical signal outputted from the photoelectric conversion circuit into an electric pulse signal of a frequency corresponding to a magnitude thereof, and for outputting the same; a waveform shaping circuit for converting the pulse signal outputted from the pulse conversion circuit into a bipolar pulse signal, and for outputting the same; a power supply circuit for supplying electric power to each of the circuits, wherein the bipolar pulse signal is imparted to a retinal region through an electrode.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 13, 2007
    Assignee: Nidek Co., Ltd.
    Inventors: Jun Ohta, Shigeru Nishimura, Kohtaro Idegami, Norikatsu Yoshida, Keiichiro Kagawa
  • Publication number: 20040116980
    Abstract: It is an object of the invention to provide a vision regeneration assisting apparatus capable of assisting in vision regeneration without making a system structure complicated.
    Type: Application
    Filed: January 23, 2004
    Publication date: June 17, 2004
    Inventors: Jun Ohta, Shigeru Nishimura, Kohtaro Idegami, Keiichiro Kagawa
  • Publication number: 20040098067
    Abstract: An object of the invention is to provide an intraocular implant-type vision stimulating unit which is capable of outputting a bipolar pulse signal in a simple constitution, and is highly sensitive, compact, and low power consumptive.
    Type: Application
    Filed: August 28, 2003
    Publication date: May 20, 2004
    Inventors: Jun Ohta, Shigeru Nishimura, Kohtaro Idegami, Norikatsu Yoshida, Keiichiro Kagawa