Patents by Inventor Toshiyuki Ookubo

Toshiyuki Ookubo 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).

  • Ophthalmic measurement device and ophthalmic measurement system
    Patent number: 11058295
    Abstract: An ophthalmic measurement device and measurement system include a projection unit projecting an image on tear fluid accumulated at an edge of an eyelid and a surface of a cornea and conjunctiva; an imager takes a picture of the tear fluid accumulated at an edge of an eyelid and the surface of a cornea and conjunctiva; and a calculator determines a physical quantity of the tear fluid accumulated at an edge of an eyelid. The calculator acquires a physical quantity of a first reflection of the image projected on the tear fluid accumulated at an edge of an eyelid, and calculates a curvature radius of the surface of the tear fluid, from a distance between the projection unit and the surface of the tear fluid obtained by distance measurement, a physical quantity of the image, and the physical quantity of the first reflection.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 13, 2021
    Assignee: ELRISE CORPORATION
    Inventors: Yoshiro Okazaki, Mamoru Iwabuchi, Toshiyuki Ookubo, Tatsuki Takenaga, Taku Miyake, Norihiko Yokoi
  • OPHTHALMIC MEASUREMENT DEVICE AND OPHTHALMIC MEASUREMENT SYSTEM
    Publication number: 20190374100
    Abstract: An ophthalmic measurement device and measurement system include a projection unit projecting an image on tear fluid accumulated at an edge of an eyelid and a surface of a cornea and conjunctiva; an imager takes a picture of the tear fluid accumulated at an edge of an eyelid and the surface of a cornea and conjunctiva; and a calculator determines a physical quantity of the tear fluid accumulated at an edge of an eyelid. The calculator acquires a physical quantity of a first reflection of the image projected on the tear fluid accumulated at an edge of an eyelid, and calculates a curvature radius of the surface of the tear fluid, from a distance between the projection unit and the surface of the tear fluid obtained by distance measurement, a physical quantity of the image, and the physical quantity of the first reflection.
    Type: Application
    Filed: August 2, 2018
    Publication date: December 12, 2019
    Applicant: ELRISE CORPORATION
    Inventors: Yoshiro Okazaki, Mamoru Iwabuchi, Toshiyuki Ookubo, Tatsuki Takenaga, Taku Miyake, Norihiko Yokoi