Patents by Inventor Takeshi Iwano

Takeshi Iwano 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).

  • Capillary tube flow cell
    Patent number: 7667837
    Abstract: Provided is a capillary tube flow cell used in analyses at very low flow rates and, particularly, in liquid chromatographic analyses. To ensure that high detection sensitivity and low noise can be realized, a flow cell which houses a liquid sample and exposes the liquid sample to radiant light for analysis purposes comprises a capillary tube which has a bent portion for incident light, a bent portion for emergent light and a linear passage of appropriate length formed between the bent portions, a passage portion of the capillary tube being inserted into a slit and the slit being provided with a light pass preventing portion.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: February 23, 2010
    Assignee: GL Sciences Incorporated
    Inventors: Takeshi Iwano, Tsuyoshi Yamada, Xiaojing Zhou
  • Capillary tube flow cell
    Publication number: 20070041009
    Abstract: Provided is a capillary tube flow cell used in analyses at very low flow rates and, particularly, in liquid chromatographic analyses. To ensure that high detection sensitivity and low noise can be realized, a flow cell which houses a liquid sample and exposes the liquid sample to radiant light for analysis purposes comprises a capillary tube which has a bent portion for incident light, a bent portion for emergent light and a linear passage of appropriate length formed between the bent portions, a passage portion of the capillary tube being inserted into a slit and the slit being provided with a light pass preventing portion.
    Type: Application
    Filed: May 12, 2004
    Publication date: February 22, 2007
    Inventors: Takeshi Iwano, Tsuyoshi Yamada, Xiaojing Zhou