Patents by Inventor Kazuhisa Mitsuda

Kazuhisa Mitsuda 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: 8824631
    Abstract: Provided is a technique for X-ray reflection, such as an X-ray reflecting mirror, capable of achieving a high degree of smoothness of a reflecting surface, high focusing (reflecting) performance, stability in a curved surface shape, and a reduction in overall weight. A silicon plate (silicon wafer) is subjected to thermal plastic deformation to form an X-ray reflecting mirror having a reflecting surface with a stable curved surface shape. The silicon wafer can be deformed to any shape by applying a pressure thereto in a hydrogen atmosphere at a high temperature of about 1300° C. The silicon plate may be simultaneously subjected to hydrogen annealing to further reduce roughness of a silicon surface to thereby provide enhanced reflectance.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: September 2, 2014
    Assignees: Japan Aerospace Exploration Agency, Tokyo Manufacturing University
    Inventors: Kazuhisa Mitsuda, Manabu Ishida, Yuichiro Ezoe, Kazuo Nakajima
  • Publication number: 20110110499
    Abstract: Provided is a technique for X-ray reflection, such as an X-ray reflecting mirror, capable of achieving a high degree of smoothness of a reflecting surface, high focusing (reflecting) performance, stability in a curved surface shape, and a reduction in overall weight. A silicon plate (silicon wafer) is subjected to thermal plastic deformation to form an X-ray reflecting mirror having a reflecting surface with a stable curved surface shape. The silicon wafer can be deformed to any shape by applying a pressure thereto in a hydrogen atmosphere at a high temperature of about 1300° C. The silicon plate may be simultaneously subjected to hydrogen annealing to further reduce roughness of a silicon surface to thereby provide enhanced reflectance.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 12, 2011
    Inventors: Kazuhisa MITSUDA, Manabu ISHIDA, Yuichiro EZOE, Kazuo NAKAJIMA
  • Patent number: 7881432
    Abstract: Disclosed is an X-ray reflecting device and an X-ray reflecting element constituting the X-ray reflecting device capable of facilitating a reduction in weight and being prepared in a relatively simple manner. The X-ray reflecting element of the present invention comprises a body made of a solid silicon, and a plurality of slits formed in the body in such a manner as to penetrate from a front surface to a back surface of the body. Each of the slits has a wall surface serving as an X-ray reflecting surface.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 1, 2011
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Kazuhisa Mitsuda, Yuichiro Ezoe
  • Patent number: 7817780
    Abstract: Disclosed is an X-ray reflecting device and an X-ray reflecting element constituting the X-ray reflecting device capable of facilitating a reduction in weight and being prepared in a relatively simple manner. The X-ray reflecting element of the present invention comprises a body made of a solid silicon, and a plurality of slits formed in the body in such a manner as to penetrate from a front surface to a back surface of the body. Each of the slits has a wall surface serving as an X-ray reflecting surface.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: October 19, 2010
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Kazuhisa Mitsuda, Yuichiro Ezoe
  • Publication number: 20090262900
    Abstract: Disclosed is an X-ray reflecting device and an X-ray reflecting element constituting the X-ray reflecting device capable of facilitating a reduction in weight and being prepared in a relatively simple manner. The X-ray reflecting element of the present invention comprises a body made of a solid silicon, and a plurality of slits formed in the body in such a manner as to penetrate from a front surface to a back surface of the body. Each of the slits has a wall surface serving as an X-ray reflecting surface.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 22, 2009
    Inventors: Kazuhisa Mitsuda, Yuichiro Ezoe
  • Patent number: 6627894
    Abstract: Microcalorimeters are arranged in a n×m matrix, and plural element groups are composed of the microcalorimeters. Each element group is composed of n calorimeters arranged in a column. AC biases having different frequencies are applied to their respective element groups. The elements produce output signals in response to given external information. The output signals from corresponding elements belonging to their respective different element groups are superimposed on their respective AC biases and added with signal adders. A multiplex signal of the thus added output signals can be taken out on one signal line and read. Each microcalorimeter is placed in a bridge-type circuit to cancel out the AC bias in the output in the absence of a signal in the microcalorimeter.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: September 30, 2003
    Assignee: The Institute of Space and Astronautical Science
    Inventors: Kazuhisa Mitsuda, Toshiyuki Miyazaki
  • Publication number: 20020115572
    Abstract: Microcalorimeters are arranged in a n×m matrix, and plural element groups are composed of the microcalorimeters. Each element group is composed of n calorimeters arranged in a column. AC biases having different frequencies are applied to their respective element groups. The elements produce output signals in response to given external information. The output signals from corresponding elements belonging to their respective different element groups are superimposed on their respective AC biases and added with signal adders. A multiplex signal of the thus added output signals can be taken out on one signal line and read. Each microcalorimeter is placed in a bridge-type circuit to cancel out the AC bias in the output in the absence of a signal in the microcalorimeter.
    Type: Application
    Filed: January 15, 2002
    Publication date: August 22, 2002
    Inventors: Kazuhisa Mitsuda, Toshiyuki Miyazaki