Patents by Inventor Yumi Osaki

Yumi Osaki 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).

  • Method for specifically detecting analyte using photocurrent, and electrode, measuring cell and measuring device for use therein
    Patent number: 8092670
    Abstract: A method, an electrode, a measuring cell, and a measuring device are disclosed which can detect and quantitatively determine an analyte having specific bonding properties, in a highly sensitive, simple and accurate manner using photocurrent. This method comprises contacting a working electrode and a counter electrode with an electrolyte medium, wherein the working electrode has an analyte immobilized thereon through a probe substance and wherein the analyte is bonded to a sensitizing dye; irradiating the working electrode with light to photoexcite the sensitizing dye; and detecting photocurrent flowing between the working electrode and the counter electrode, wherein the photocurrent is generated by transfer of electrons from the photoexcited sensitizing dye to the working electrode.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 10, 2012
    Assignee: Toto Ltd.
    Inventors: Makoto Bekki, Hitoshi Ohara, Shuji Sonezaki, Koki Kanehira, Yumi Ogami, Hiroshi Ishikawa, Yumi Osaki, Hiromasa Tokudome, Yoko Yamada, Masahiro Miyauchi
  • Method for Specifically Detecting Analyte Using Photocurrent, and Electrode, Measuring Cell and Measuring Device for Use Therein
    Publication number: 20090294305
    Abstract: A method, an electrode, a measuring cell, and a measuring device are disclosed which can detect and quantitatively determine an analyte having specific bonding properties, in a highly sensitive, simple and accurate manner using photocurrent. This method comprises contacting a working electrode and a counter electrode with an electrolyte medium, wherein the working electrode has an analyte immobilized thereon through a probe substance and wherein the analyte is bonded to a sensitizing dye; irradiating the working electrode with light to photoexcite the sensitizing dye; and detecting photocurrent flowing between the working electrode and the counter electrode, wherein the photocurrent is generated by transfer of electrons from the photoexcited sensitizing dye to the working electrode.
    Type: Application
    Filed: September 28, 2006
    Publication date: December 3, 2009
    Applicant: Toto Ltd.
    Inventors: Makoto Bekki, Hitoshi Ohara, Shuji Sonezaki, Koki Kanehira, Yumi Ogami, Hiroshi Ishikawa, Yumi Osaki, Hiromasa Tokudome, Yoko Yamada, Masahiro Miyauchi