Patents by Inventor Norikazu Hamanaka

Norikazu Hamanaka 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: 11234593
    Abstract: In a slit lamp microscope, ease of maintenance of an illumination-power-supply cable is improved while preventing the cable from appearing untidy. An illumination support arm of a slit lamp microscope is provided with a groove-shaped cable holder in which the illumination-power-supply cable is disposed along the outer surface of the illumination support arm in an externally exposed state. This configuration facilitates replacement of the illumination-power-supply cable even when a problem, such as breaking of the illumination-power-supply cable, occurs, thus improving ease of maintenance. Furthermore, because the illumination-power-supply cable is disposed along the groove-shaped cable holder, the slit lamp microscope has a neat appearance.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: February 1, 2022
    Assignee: RIGHT MFG. CO., LTD.
    Inventors: Norikazu Hamanaka, Hajime Hakamada, Kotaro Kawanishi, Keisuke Suzuki
  • Publication number: 20210290054
    Abstract: In a slit lamp microscope, ease of maintenance of an illumination-power-supply cable is improved while preventing the cable from appearing untidy. An illumination support arm of a slit lamp microscope is provided with a groove-shaped cable holder in which the illumination-power-supply cable is disposed along the outer surface of the illumination support arm in an externally exposed state. This configuration facilitates replacement of the illumination-power-supply cable even when a problem, such as breaking of the illumination-power-supply cable, occurs, thus improving ease of maintenance. Furthermore, because the illumination-power-supply cable is disposed along the groove-shaped cable holder, the slit lamp microscope has a neat appearance.
    Type: Application
    Filed: April 13, 2017
    Publication date: September 23, 2021
    Applicant: RIGHT MFG. CO., LTD.
    Inventors: Norikazu Hamanaka, Hajime Hakamada, Kotaro Kawanishi, Keisuke Suzuki
  • Patent number: 8262225
    Abstract: An eye examination apparatus includes an accommodation power acquisition unit, a corrected accommodation power calculation unit, a drive unit and an accommodative microfluctuation measurement unit. The accommodation power acquisition unit acquires an accommodation power which is determined from a difference between a near point and a distant point of an examined eye. The corrected accommodation power calculation unit calculates an integrated value of the accommodation power and a correction coefficient. The drive unit drives a vision target in a direction of an optical axis of the examined eye.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 11, 2012
    Assignee: Right Mfg. Co., Ltd.
    Inventors: Yasunori Ueno, Kenichi Takahashi, Norikazu Hamanaka
  • Publication number: 20110187996
    Abstract: An eye examination apparatus includes an accommodation power acquisition unit, a corrected accommodation power calculation unit, a drive unit and an accommodative microfluctuation measurement unit. The accommodation power acquisition unit acquires an accommodation power which is determined from a difference between a near point and a distant point of an examined eye. The corrected accommodation power calculation unit calculates an integrated value of the accommodation power and a correction coefficient. The drive unit drives a vision target in a direction of an optical axis of the examined eye.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 4, 2011
    Applicant: RIGHT MFG. CO., LTD.
    Inventors: Yasunori Ueno, Kenichi Takahashi, Norikazu Hamanaka