Patents by Inventor Teiji Nakayama

Teiji Nakayama 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).

  • Catheter, examination system and thrombus removing device
    Patent number: 10456200
    Abstract: The position of a metal marker 5 relative to an optical fiber 6 is fixed, and the metal marker 5 can be moved up close to a target site such as a thrombus. It is preferable that the position, in an optical fiber longitudinal direction, of a front-end face of the optical fiber 6 is coincident with the position, in an optical fiber longitudinal direction, of a front-end face of the metal marker 5. More specifically, since the distance between the target site and the front end of the optical fiber 6 is known by radiography, it becomes unnecessary to use a large quantity of contrast agent and irradiate a laser beam depending on skill and intuition, and therefore an effective laser beam irradiation becomes possible.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: October 29, 2019
    Assignees: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroyuki Okada, Teiji Nakayama, Kazuo Umemura, Daisuke Yamashita, Yutaka Yamashita, Katsuhiro Kobayashi
  • CATHETER, EXAMINATION SYSTEM AND THROMBUS REMOVING DEVICE
    Publication number: 20090270846
    Abstract: The position of a metal marker 5 relative to an optical fiber 6 is fixed, and the metal marker 5 can be moved up close to a target site such as a thrombus. It is preferable that the position, in an optical fiber longitudinal direction, of a front-end face of the optical fiber 6 is coincident with the position, in an optical fiber longitudinal direction, of a front-end face of the metal marker 5. More specifically, since the distance between the target site and the front end of the optical fiber 6 is known by radiography, it becomes unnecessary to use a large quantity of contrast agent and irradiate a laser beam depending on skill and intuition, and therefore an effective laser beam irradiation becomes possible.
    Type: Application
    Filed: October 25, 2006
    Publication date: October 29, 2009
    Applicants: Teiji Nakayama, Hamamatsu Photonics K.K.
    Inventors: Hiroyuki Okada, Teiji Nakayama, Kazuo Umemura, Daisuke Yamashita, Yutaka Yamashita, Katsuhiro Kobayashi