Patents by Inventor Koichiro Kakizawa

Koichiro Kakizawa 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: 4957360
    Abstract: An apparatus for detecting ophthalmic diseases such as inflammation in the camera oculi of a patient's eye. A laser beam is focussed at a selected spot in the camera oculi of an eye, and the light scattered from the eye is photoelectrically detected and converted into an electrical signal which is subsequently used to determine the protein concentration essential to ophthalmic disease detection in the camera oculi of the patient's eye.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: September 18, 1990
    Assignee: Kowa Company Ltd.
    Inventors: Koichiro Kakizawa, Tadashi Ichihashi
  • Patent number: 4854693
    Abstract: An apparatus operates in an observation mode for determining a specific spot within the eye of a patient and operates in a measurement mode for measuring protein particles contained within the specific spot. The eye is illuminated with a slit light to determine a specific spot. A laser light is irradiated onto the determined specific spot. A scattered light scattered by protein particles is detected by a detector to measure the protein particles.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: August 8, 1989
    Assignee: Kowa Company Ltd.
    Inventors: Tadashi Ichihashi, Koichiro Kakizawa, Masunori Kawamura
  • Patent number: 4776687
    Abstract: An apparatus for detecting ophthalmic disease such as a cataract in the lens of a patient's eye includes means for focussing a laser beam and slit light alternatively or simultaneously at a selected spot in the lens of the eye. The slit light is used in a monitoring or adjustment mode to illuminate the selected spot and its adjacent portion on which the laser beam is to be focussed for ophthalmic disease detection, thereby making easier the identification of spots to be measured in the lens of the eye.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: October 11, 1988
    Assignee: Kowa Company, Ltd.
    Inventors: Takaji Nakanishi, Koichiro Kakizawa, Nobuyuki Yasuda, Shinichiro Shinoda
  • Patent number: 4744649
    Abstract: An ophthalmological measuring apparatus having a laser-slit projector unit for projecting a laser beam on a portion in a human eyeball, a microscope unit adapted for receiving and observing the light reflected from the portion in the eyeball and a detector unit adapted for displaying the observing point in the eyeball projected by the laser beam.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: May 17, 1988
    Assignee: Kowa Kabushiki Kaisha
    Inventors: Masao Niino, Nobuyuki Yasuda, Koichiro Kakizawa, Tadashi Ichihashi, Masunori Kawamura
  • Patent number: 4711542
    Abstract: An apparatus for detecting ophthalmic diseases such as a cataract in the lens of a patient's eye which includes means for focussing a laser beam at a selected spot in the lens of an eye, and according to which the light back-scattered from the eye are photoelectrically detected and converted into an electrical signal which is subsequently used to determine an autocorrelation function relating to the fluctuation of intensity of the back-scattered light over time, and to derive therefrom a protein particle distribution essential to ophthalmic disease detection.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: December 8, 1987
    Assignee: Kowa Company Ltd.
    Inventors: Tadashi Ichihashi, Koichiro Kakizawa, Masunori Kawamura