Patents by Inventor Takanori Kamada

Takanori Kamada 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).

  • Degasifier and liquid chromatograph equipped therewith
    Patent number: 8495906
    Abstract: The present invention relates to a deaerator 2 including: a liquid flow space; reduced-pressure spaces 25A, 25B, and 25C; gas permeable films 21A, 21B, and 21C that separate these spaces; and a pump for discharging gas from within the reduced-pressure spaces 25A, 25B, and 25C to the outside, and to a liquid chromatograph equipped with the deaerator 2. The deaerator 2 further includes gas partial pressure variation suppression means 23A, 23B, 23C, 25Ab, 25Bb, 25Cb, 29A, 29B, and 29C for suppressing variations in partial pressures of a specific gas in the reduced-pressure spaces 25A, 25B, and 25C.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: July 30, 2013
    Assignee: Arkray, Inc.
    Inventors: Koji Sugiyama, Akira Sezaki, Takanori Kamada, Yoshikiyo Hongo
  • Liquid chromatograph
    Patent number: 8361390
    Abstract: The present invention relates to a liquid chromatography apparatus X, which is provided with a deaerator 4. The liquid chromatography apparatus X is further provided with a dissolved oxygen density adjusting means for maintaining a density of dissolved oxygen in an eluting solution to be supplied to a column 60 constant. Preferably, the dissolved oxygen density adjusting means is configured so as to adjust the density of the dissolved oxygen in the eluting solution by adjusting a degree of decompression in a decompression space of the deaerator 4 based on a measurement result by temperature measurement means 40A, 40B, and 40C for measuring the temperature of the eluting solution.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: January 29, 2013
    Assignee: Arkray, Inc.
    Inventors: Koji Sugiyama, Toshikatsu Sakai, Yoshikiyo Hongo, Akira Sezaki, Takanori Kamada
  • DEGASIFIER AND LIQUID CHROMATOGRAPH EQUIPPED THEREWITH
    Publication number: 20100288024
    Abstract: The present invention relates to a deaerator 2 including: a liquid flow space; reduced-pressure spaces 25A, 25B, and 25C; gas permeable films 21A, 21B, and 21C that separate these spaces; and a pump for discharging gas from within the reduced-pressure spaces 25A, 25B, and 25C to the outside, and to a liquid chromatograph equipped with the deaerator 2. The deaerator 2 further includes gas partial pressure variation suppression means 23A, 23B, 23C, 25Ab, 25Bb, 25Cb, 29A, 29B, and 29C for suppressing variations in partial pressures of a specific gas in the reduced-pressure spaces 25A, 25B, and 25C.
    Type: Application
    Filed: February 8, 2007
    Publication date: November 18, 2010
    Applicant: ARKRAY, INC.
    Inventors: Koji Sugiyama, Akira Sezaki, Takanori Kamada, Yoshikiyo Hongo
  • Liquid Chromatograph
    Publication number: 20090275119
    Abstract: The present invention relates to a liquid chromatography apparatus X, which is provided with a deaerator 4. The liquid chromatography apparatus X is further provided with a dissolved oxygen density adjusting means for maintaining a density of dissolved oxygen in an eluting solution to be supplied to a column 60 constant. Preferably, the dissolved oxygen density adjusting means is configured so as to adjust the density of the dissolved oxygen in the eluting solution by adjusting a degree of decompression in a decompression space of the deaerator 4 based on a measurement result by temperature measurement means 40A, 40B, and 40C for measuring the temperature of the eluting solution.
    Type: Application
    Filed: February 8, 2007
    Publication date: November 5, 2009
    Applicant: ARKRAY, INC.
    Inventors: Koji Sugiyama, Toshikatsu Sakai, Yoshikiyo Hongo, Akira Sezaki, Takanori Kamada
  • Liquid homogenizing unit and high speed liquid chromatograph equipped with the same
    Patent number: 7364701
    Abstract: A liquid homogenizing unit comprising a feed flow channel (56), a discharge flow channel (57), a first intermediate flow channel (58) communicating with the feed flow channel (56), and a second intermediate flow channel (55) communicating will the first intermediate flow channel (58) and discharge flow channel (57). The first intermediate flow channel (58) extends in a direction which crosses the second intermediate flow channel (55).
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: April 29, 2008
    Assignee: Arkray, Inc.
    Inventors: Takanori Kamada, Kazunori Hirose