Patents by Inventor Shuuji Imuta

Shuuji Imuta 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).

  • Light waveguide and fluorescent sensor using the light waveguide
    Patent number: 7181096
    Abstract: A light waveguide includes: a light introducing portion for introducing light coming from a light source into a waveguide main body; a light radiating surface for radiating the light introduced through the light introducing portion to the hydrogel side; a light transmitting surface which is disposed opposite to and in parallel to the light radiating surface and through which external light incident from the light radiating surface is transmitted to the exterior; a light separation portion, which provided on a surface in a region ranging from the light introducing portion to the light radiating surface and the light transmitting surface, reflecting only totally reflected components of the light introduced through the light introducing portion; an irregular reflection portion provided on the light transmitting surface to change the reflection angle on the light transmitting surface of the light reflected by the light separation portion; and a mirror portion provided at a position opposite to the light introduci
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: February 20, 2007
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Atsushi Matsumoto, Shuuji Imuta
  • Light waveguide and fluorescent sensor using the light waveguide
    Publication number: 20060093262
    Abstract: A light waveguide includes: a light introducing portion for introducing light coming from a light source into a waveguide main body; a light radiating surface for radiating the light introduced through the light introducing portion to the hydrogel side; a light transmitting surface which is disposed opposite to and in parallel to the light radiating surface and through which external light incident from the light radiating surface is transmitted to the exterior; a light separation portion, which provided on a surface in a region ranging from the light introducing portion to the light radiating surface and the light transmitting surface, reflecting only totally reflected components of the light introduced through the light introducing portion; an irregular reflection portion provided on the light transmitting surface to change the reflection angle on the light transmitting surface of the light reflected by the light separation portion; and a mirror portion provided at a position opposite to the light introduci
    Type: Application
    Filed: October 26, 2005
    Publication date: May 4, 2006
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Atsushi Matsumoto, Shuuji Imuta