Patents by Inventor Eigo OTSUJI

Eigo OTSUJI 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).

  • Tumor site or parathyroid gland identification device and method
    Patent number: 9241636
    Abstract: The present invention provides a device for identifying a tumor site in a subject, the device spectroscopically detecting fluorescence of protoporphyrins present in the tumor site, the protoporphyrins being protoporphyrin IX (PpIX) and photo-protoporphyrin (PPp), and the device comprising: a light irradiation unit that converts part of PpIX into PPp; a spectroscopy unit that separates PpIX fluorescence and PPp fluorescence: a spectroscopy detection unit that detects the relative fluorescence intensity of the PpIX fluorescence and the PPp fluorescence; and a tumor discrimination unit that discriminates between the tumor site and a non-tumor site based on the relative fluorescence intensity of PpIX and PPp.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 26, 2016
    Assignee: Kyoto Prefectural Public University Corporation
    Inventors: Noriaki Koizumi, Tetsuro Takamatsu, Yoshinori Harada, Eigo Otsuji
  • TUMOR SITE OR PARATHYROID GLAND IDENTIFICATION DEVICE AND METHOD
    Publication number: 20140163391
    Abstract: The present invention provides a device for identifying a tumor site in a subject, the device spectroscopically detecting fluorescence of protoporphyrins present in the tumor site, the protoporphyrins being protoporphyrin IX (PpIX) and photo-protoporphyrin (PPp), and the device comprising: a light irradiation unit that converts part of PpIX into PPp; a spectroscopy unit that separates PpIX fluorescence and PPp fluorescence: a spectroscopy detection unit that detects the relative fluorescence intensity of the PpIX fluorescence and the PPp fluorescence; and a tumor discrimination unit that discriminates between the tumor site and a non-tumor site based on the relative fluorescence intensity of PpIX and PPp.
    Type: Application
    Filed: December 27, 2013
    Publication date: June 12, 2014
    Inventors: Noriaki KOIZUMI, Tetsuro TAKAMATSU, Yoshinori HARADA, Eigo OTSUJI