Patents by Inventor Chieko Ikeda

Chieko Ikeda 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).

  • Patent number: 8865020
    Abstract: Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: October 21, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Katsuhiro Tsukimura, Sumiko Kawabata, Chieko Ikeda, Ryousuke Nakanishi, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Patent number: 8227377
    Abstract: Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of ?78 ppm and ?87 ppm in a 29Si solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: July 24, 2012
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Chieko Ikeda, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Patent number: 7887770
    Abstract: Provided is an adsorbent having excellent adsorption performance in a medium-humidity range by employing an amorphous aluminum silicate formed from protoimogolite. The amorphous aluminum silicate formed from protoimogolite is synthesized by setting the Si/Al ratio in solution mixing to be of a condition that is higher than synthesizing imogolite or amorphous imogolite, and performing desalting treatment and heating thereto. The obtained amorphous aluminum silicate formed from protoimogolite yields a superior water vapor adsorption performance of 30 wt % or higher at a relative humidity of 60%, and can be used as an adsorbent for desiccant air conditioning.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: February 15, 2011
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Chieko Ikeda, Keiichi Inukai, Masaki Maeda
  • Publication number: 20100320418
    Abstract: Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning.
    Type: Application
    Filed: December 26, 2008
    Publication date: December 23, 2010
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE
    Inventors: Masaya Suzuki, Katsuhiro Tsukimura, Sumiko Kawabata, Chieko Ikeda, Ryousuke Nakanishi, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Publication number: 20100113265
    Abstract: Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of ?78 ppm and ?87 ppm in a 29Si solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.
    Type: Application
    Filed: April 11, 2008
    Publication date: May 6, 2010
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Chieko Ikeda, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Publication number: 20100028237
    Abstract: Provided is an adsorbent having excellent adsorption performance in a medium-humidity range by employing an amorphous aluminum silicate formed from protoimogolite. The amorphous aluminum silicate formed from protoimogolite is synthesized by setting the Si/Al ratio in solution mixing to be of a condition that is higher than synthesizing imogolite or amorphous imogolite, and performing desalting treatment and heating thereto. The obtained amorphous aluminum silicate formed from protoimogolite yields a superior water vapor adsorption performance of 30 wt % or higher at a relative humidity of 60%, and can be used as an adsorbent for desiccant air conditioning.
    Type: Application
    Filed: February 27, 2007
    Publication date: February 4, 2010
    Applicant: National Institute of Advanced industrial Science and Technology
    Inventors: Masaya Suzuki, Chieko Ikeda, Keiichi Inukai, Masaki Maeda
  • Patent number: 7087032
    Abstract: The present invention provides a controlling undergarment covering a wearer's abdomen, lumbar, and thigh capable of stabilizing the pelvis, tightening the swelling of the center of the abdomen, and performing a correction to stabilize the lower buttocks without discomfort and the need for putting on and taking off when excreting which comprises: a main body for covering the wearer's abdomen, lumbar, and thigh composed by the connection of a front part, a back part, and two leg parts; and a belt with stretchability for surrounding the front and back sides of the main body wherein a crotch region is open.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: August 8, 2006
    Inventor: Chieko Ikeda