The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2005
Filed:
Nov. 22, 2002
Kenichi Uchiyama, Kanagawa, JP;
Ichiro Tono, Kanagawa, JP;
Hideo Eto, Kanagawa, JP;
Miki Nagatomo, Tokyo, JP;
Kenichi Uchiyama, Kanagawa, JP;
Ichiro Tono, Kanagawa, JP;
Hideo Eto, Kanagawa, JP;
Miki Nagatomo, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An optical waveguide sensor for glucose measurement comprises a substrate, a first optical waveguide layer formed on a surface of the substrate, an entrance grating and an exit grating which are formed contacting with the first optical waveguide layer and being spaced from each other, a second optical waveguide layer located between the entrance grating and the exit grating while being in contact with the first optical waveguide layer, the second optical waveguide layer having a higher refractive index that that of the first optical waveguide layer, and a functioning layer containing an enzyme and a coloring reagent which is formed on the second optical waveguide layer.