Patents by Inventor Masahiro Nakagawa

Masahiro Nakagawa 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: 8571646
    Abstract: An emotional state determining apparatus capable of determining an emotional state of a subject without reducing determination accuracy even if the number of brain wave signals to be used is reduced. A multifractal dimension computing section 3 computes multifractal dimensions based on brain wave signals or brain wave difference signals. An emotional state determining section 4 receives input data on the multifractal dimensions, and determines an emotional state of the subject based on determination criteria which are determined in advance by using as reference data the brain wave signals obtained from a reference person. Generalized latent dimensions (vector) respectively obtained by substituting a plurality of different values determined in advance for a Hurst exponent characteristic q in a generalized latent dimension Dq=1/Hq, which is a reciprocal number of a generalized Hurst exponent Hq obtained from the brain wave signals or the brain wave difference signals, are used as the multifractal dimensions.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 29, 2013
    Assignee: National University Corporation Nagaoka University of Technology
    Inventor: Masahiro Nakagawa
  • Patent number: 8235894
    Abstract: The invention provides an emotional state determination method capable of quantitatively and accurately measuring an emotional state of a human being without requiring a special measuring environment. At least one of oxy-hemoglobin densities and deoxy-hemoglobin densities in blood of a plurality of measurement regions of a human brain cortex of a subject 1 are measured in time series, respectively, using a near-infrared spectroscopy. Then, cross-correlation coefficients of plural sets of time-variable change data are computed for each time (for each sampling period). Each of the plural sets of the time-variable change data comprises two of the time-variable change data which are selected by permutations and combinations from among at least one of the time-variable change data on the measured oxy-hemoglobin densities and the time-variable change data on the measured deoxy-hemoglobin densities.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 7, 2012
    Assignee: Nagaoka University of Technology
    Inventor: Masahiro Nakagawa
  • Patent number: 8139198
    Abstract: A part of exposure beam through a liquid via a projection optical system enters a light-transmitting section, enters an optical member without passing through gas, and is focused. The exposure apparatus receives the exposure light from the projection optical system to perform various measurements even if the numerical aperture of the projection optical system increases.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: March 20, 2012
    Assignee: Nikon Corporation
    Inventors: Hisashi Nishinaga, Ikuo Hikima, Mitsunori Toyoda, Masahiro Nakagawa, Tsuneyuki Hagiwara, Yasushi Mizuno, Naonori Kita, Osamu Tanitsu, Nozomu Emura
  • Publication number: 20110319784
    Abstract: An emotional state determining apparatus capable of determining an emotional state of a subject without reducing determination accuracy even if the number of brain wave signals to be used is reduced. A multifractal dimension computing section 3 computes multifractal dimensions based on brain wave signals or brain wave difference signals. An emotional state determining section 4 receives input data on the multifractal dimensions, and determines an emotional state of the subject based on determination criteria which are determined in advance by using as reference data the brain wave signals obtained from a reference person. Generalized latent dimensions (vector) respectively obtained by substituting a plurality of different values determined in advance for a Hurst exponent characteristic q in a generalized latent dimension Dq=1/Hq, which is a reciprocal number of a generalized Hurst exponent Hq obtained from the brain wave signals or the brain wave difference signals, are used as the multifractal dimensions.
    Type: Application
    Filed: February 12, 2010
    Publication date: December 29, 2011
    Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventor: Masahiro Nakagawa
  • Publication number: 20100132601
    Abstract: A tufting machine of novel structure which can produce a pile fabric mixing both a cut pile and a loop pile through a simple arrangement. Means for displacing a finger plate in the piercing direction of a needle through a foundation are provided so that the capturing state of a loop formed on the surface of the foundation by a looper can be released by displacing the finger plate to the surface side of the foundation. A loop captured by the loop is cut into a cut pile by means of a knife, and the released loop is not cut but becomes a loop pile.
    Type: Application
    Filed: July 31, 2007
    Publication date: June 3, 2010
    Applicant: NAKAGAWA MFG. CO., LTD.
    Inventors: Masahiro Nakagawa, Teruo Unno
  • Publication number: 20090269220
    Abstract: An electric compressor (10, 10A, 10B, 10C) includes a suction chamber (14), a discharge chamber (15), a compressor body (20) configured to suck a fluid from the suction chamber (14), and then, discharge the compressed fluid in to the discharge chamber (15), an electric motor (30) configured to drive the compressor body (20), and an inverter (100) configured to control the electric motor (30). The inverter (100) is disposed in the suction chamber (14).
    Type: Application
    Filed: May 16, 2007
    Publication date: October 29, 2009
    Applicant: Calsonic Kansei Corporation
    Inventors: Masahiro Nakagawa, Yoshinobu Maemura
  • Publication number: 20080304736
    Abstract: A method of estimating a visual evaluation value of beauty of a skin, and a device and a program for calculating a visual evaluation value of beauty of a skin are provided. Anybody can easily estimate a visual evaluation value of beauty of a skin objectively and quantitatively. A visual evaluation value of beauty of the skin is estimated by using a correlation between a visual evaluation value of beauty of the skin and a fractal dimension of a distribution of a color system signal of an image of the skin or a 3-dimensional skin surface relief value of a skin surface.
    Type: Application
    Filed: September 26, 2007
    Publication date: December 11, 2008
    Applicants: Masahiro Nakagawa, Pola Chemical Industries Inc.
    Inventors: Masahiro Nakagawa, Koji Mizukoshi, Midori Oyobikawa, Katsuo Matsomoto
  • Publication number: 20080042068
    Abstract: A sensor is used at a substrate level in a lithographic projection apparatus having a projection system with a numeric aperture that is greater than 1 and is configured to project a patterned radiation beam onto a target portion of a substrate The sensor includes a radiation-detector; a transmissive plate having a front surface and a back surface, the transmissive plate being positioned such that radiation projected by the projection system passes into the front surface of the transmissive plate and out of the back surface thereof to the radiation detector; and a luminescent layer provided on the back surface of the transmissive plate, the luminescent layer absorbing the radiation and emitting luminescent radiation of a different wavelength, wherein the back surface is rough.
    Type: Application
    Filed: August 31, 2007
    Publication date: February 21, 2008
    Applicant: NIKON CORPORATION
    Inventors: Hisashi Nishinaga, Ikuo Hikima, Mitsunori Toyoda, Masahiro Nakagawa, Tsuneyuki Hagiwara, Yasushi Mizuno, Naonori Kita, Osamu Tanitsu, Nozomu Emura
  • Publication number: 20070202477
    Abstract: The invention provides an emotional state determination method capable of quantitatively and accurately measuring an emotional state of a human being without requiring a special measuring environment. At least one of oxy-hemoglobin densities and deoxy-hemoglobin densities in blood of a plurality of measurement regions of a human brain cortex of a subject 1 are measured in time series, respectively, using a near-infrared spectroscopy. Then, cross-correlation coefficients of plural sets of time-variable change data are computed for each time (for each sampling period). Each of the plural sets of the time-variable change data comprises two of the time-variable change data which are selected by permutations and combinations from among at least one of the time-variable change data on the measured oxy-hemoglobin densities and the time-variable change data on the measured deoxy-hemoglobin densities.
    Type: Application
    Filed: March 2, 2007
    Publication date: August 30, 2007
    Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventor: MASAHIRO NAKAGAWA
  • Publication number: 20060181690
    Abstract: A part of exposure beam through a liquid via a projection optical system enters a light-transmitting section, enters an optical member without passing through gas, and is focused. The exposure apparatus receives the exposure light from the projection optical system to perform various measurements even if the numerical aperture of the projection optical system increases.
    Type: Application
    Filed: April 14, 2006
    Publication date: August 17, 2006
    Applicant: NIKON CORPORATION
    Inventors: Hisashi Nishinaga, Ikuo Hikima, Mitsunori Toyoda, Masahiro Nakagawa, Tsuneyuki Hagiwara, Yasushi Mizuno, Naonori Kita, Osamu Tanitsu, Nozomu Emura
  • Publication number: 20060170891
    Abstract: A part of exposure beam through a liquid via a projection optical system enters a light-transmitting section, enters an optical member without passing through gas, and is focused. The exposure apparatus receives the exposure light from the projection optical system to perform various measurements even if the numerical aperture of the projection optical system increases.
    Type: Application
    Filed: March 28, 2006
    Publication date: August 3, 2006
    Applicant: NIKON CORPORATION
    Inventors: Hisashi Nishinaga, Ikuo Hikima, Mitsunori Toyoda, Masahiro Nakagawa, Tsuneyuki Hagiwara, Yasushi Mizuno, Naonori Kita, Osamu Tanitsu, Nozomu Emura
  • Patent number: 6942705
    Abstract: The invention provides a method of effectively dyeing a thermoplastic resin plastic lens in any desired color tone and density as well as a colored plastic lens made by the method. The method involves dipping a thermoplastic resin plastic lens in a dyeing liquid containing one or more disperse dyes and one or more monocyclic monoterpenes.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 13, 2005
    Assignee: Hoya Corporation
    Inventors: Kazuo Inoue, Misa Mishna, Masahiro Nakagawa
  • Patent number: 6668075
    Abstract: A position detection apparatus for and method of detection the position of a pattern formed on a substrate (e.g, a wafer). The apparatus (100) comprises an illumination system capable of illuminating the pattern, and an imaging optical system arranged to converge light from the substrate (126) to form an image of the pattern. The apparatus further includes a detector (170) that photoelectrically detects the pattern image and generates a first output signal containing a representation of the image, and position detection system (174), electrically connected to the detector, that detects a position of the pattern based on the first output signal, and determines a deviation of the position from an ideal position. The position detection system then generates a second output signal containing deviation information representing the deviation.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: December 23, 2003
    Assignee: Nikon Corporation
    Inventors: Ayako Nakamura, Masahiro Nakagawa, Tatsuo Fukui
  • Publication number: 20030182737
    Abstract: The invention provides a method of effectively dyeing a thermoplastic resin plastic lens in any desired color tone and density as well as a colored plastic lens made by the method. The method involves dipping a thermoplastic resin plastic lens in a dyeing liquid containing one or more disperse dyes and one or more monocyclic monoterpenes.
    Type: Application
    Filed: March 21, 2003
    Publication date: October 2, 2003
    Applicant: HOYA CORPORATION
    Inventors: Kazuo Inoue, Misa Mishina, Masahiro Nakagawa
  • Patent number: 6310276
    Abstract: A plant which belongs to the genus Limonium, having a characteristic of undergoing flower bud differentiation and flower stalk development within 50 days from seeding even without low temperatures of 25° C. or below; and a method for creating the plant are disclosed.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: October 30, 2001
    Assignee: Sakata Seed Corporation
    Inventors: Masahiro Nakagawa, Takashi Hayama
  • Patent number: 5958522
    Abstract: A thermal spray coating method comprising producing a high speed flame from a combustion gas and spraying a thermal spray coating material powder onto the surface of a base material by using the high speed flame to form a coating on the surface of the base material. The thermal spray coating material powder is a mixed powder comprising (A) 98-70% in volume of Cu based lead bronze alloy powder and (b) 2-30% in volume of Al powder or Al based alloy powder.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: September 28, 1999
    Assignee: Sulzer Metco Japan Ltd.
    Inventors: Masahiro Nakagawa, Mitsumasa Sasaki, Hidetada Mima, Hiroyuki Hashimoto, Toshio Hotta, Tomoko Miyazaki
  • Patent number: 5859707
    Abstract: Position-detection apparatus (alignment sensors) are disclosed for determining the position of an object (e.g., wafer, bearing a position-detection mark) as required in microlithography processes for manufacturing semiconductor devices and displays. The apparatus comprises an irradiation optical system, a condenser optical system, a first photoelectric detector, a fiducial body bearing a fiducial mark, a combining optical system, a second photoelectric detector, and a processor. The position-detection and fiducial marks are illuminated with coherent illumination light from the irradiation optical system. Light diffracted from the marks is condensed by the condenser optical system. The first photoelectric detector receives the condensed diffracted light and produces first electrical signals. The combining optical system receives the diffracted light from the fiducial mark. The second photoelectric detector receives multiple diffracted light beams from the fiducial mark and produces second electrical signals.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: January 12, 1999
    Assignee: Nikon Corporation
    Inventors: Masahiro Nakagawa, Ayako Sugaya, Masashi Tanaka, Koichiro Komatsu
  • Patent number: 5835142
    Abstract: A direct contact type image sensor includes an optical fiber array plate including a transparent substrate and an optical fiber array and having a lower face brought into close contact with an original document. A semiconductor image sensor chip including a photosensor array is mounted on an upper face of the optical fiber array plate by transparent photo-setting and insulating resin. A circuit conductive layer is formed on an upper face of the transparent substrate, and a bump electrode is formed on a lower face of the semiconductor image sensor chip so as to be brought into contact with the circuit conductive layer. A light source is provided for illuminating the original document. The optical fiber array plate is formed, on the upper face, with a slit for allowing light from the light source to pass therethrough.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 10, 1998
    Assignee: Matsushita Electric Industrial Co., ltd.
    Inventors: Tetsuro Nakamura, Masahiro Nakagawa, Eiichiro Tanaka, Shinji Fujiwara
  • Patent number: 5783833
    Abstract: A wafer is brought into focus with a projection optical system, and a wafer mark on the wafer is also brought into focus with an off-axis alignment sensor highly accurately according to an automatic focusing process. First, a deviation of the surface of the wafer from an image plane of the projection optical system is measured by an oblique-incidence main AF sensor. For measuring the position of the wafer mark with an imaging device of an alignment system, part of a focusing ray of light from the wafer passes through an optical system, which is not telecentric, composed of an AF relay system and a half beam shield plate, and is detected by the imaging device, whereupon an image of a focusing mark projected onto the wafer is formed on the imaging device. The position of the image of the focusing mark on the imaging device is calibrated on the basis of the deviation which has been measured by the oblique-incidence main AF sensor.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 21, 1998
    Assignee: Nikon Corporation
    Inventors: Ayako Sugaya, Masahiro Nakagawa
  • Patent number: 5754299
    Abstract: The present invention relates to inspection apparatus and method in which, based on images under a plurality of focus conditions formed by way of an optical system to be inspected, namely, using images under a plurality of defocal conditions, tendency in positional change or change of asymmetry between the images is calculated so as to specify at least one of aberration condition and optical adjustment condition of the optical system to be inspected as well as to exposure apparatuses and overlay accuracy measurement apparatuses provided with the inspection apparatus. In addition, the present invention relates to an image-forming optical system suitable to an alignment apparatus which is applicable to the exposure apparatuses.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: May 19, 1998
    Assignee: Nikon Corporation
    Inventors: Ayako Sugaya, Masahiro Nakagawa, Tadashi Nagayama