Patents by Inventor Hideo Kawaguchi

Hideo Kawaguchi 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: 11220465
    Abstract: A method for producing SiC/SiC composite material according to the present invention includes impregnating a substrate with a slurry containing particles of a flaky lubricant to obtain an impregnated body, drying out a solvent of the slurry from the impregnated body, forming an interface layer on surfaces of the SiC fibers by bending the impregnated body, and transferring the particles of the flaky lubricant to the surfaces of the SiC fibers while stretching the particles, and forming a SiC matrix inside the substrate on which the interface layer is formed. Since a thin interface layer of the flaky lubricant can be formed on the surfaces of the SiC fibers by transferring the flaky lubricant to the surfaces of the SiC fibers, the interface layer reaching inside of the substrate can be easily formed.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 11, 2022
    Assignee: Ibiden Co., Ltd.
    Inventors: Syuichi Kubo, Takashi Takagi, Akihide Kawaguchi, Hideo Kato, Yuki Hokazono
  • Patent number: 10172542
    Abstract: A motor performance evaluation apparatus 100 for evaluating motor performance of a subject, including: an acquisition unit 131 configured to acquire drawing stroke information including position information and time information on drawing stroke of the subject copying a predetermined single-stroke drawn figure; a detection unit 132 configured to detect a fall count indicating the number of times a drawing acceleration of the subject changes from a positive value to a negative value, based on the drawing stroke information; and an evaluation unit 133 configured to evaluate the motor performance of the subject, based on the fall count.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 8, 2019
    Assignee: TOYO UNIVERSITY
    Inventor: Hideo Kawaguchi
  • Patent number: 9494453
    Abstract: Provided is an ultrasonic sensor which includes a piezoelectric vibrator made of a lithium niobate (LN) single crystal and may be used in a high temperature region by generating a high ultrasonic wave output, and prevents cracks from being generated in the crystal. A piezoelectric vibrator 1 of the present invention has a surface (Y-axis 36° cut surface) obtained by rotating a surface orthogonal to a Y-axis of the LN crystal about an X-axis by 36°±2° as an output surface. The ultrasonic sensor further includes a retarder 3 made of titanium and a bonding layer 2 for bonding one surface of the retarder 3 to the output surface. The bonding layer 2 is made of silver and frit glass, and the frit glass has a coefficient of linear expansion ranging from 5×10?6 K?1 to 15×10?6 K?1.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 15, 2016
    Assignees: WOOJIN INC., SONIC CORPORATION
    Inventors: Ki Han Nam, Hyeon Kyu Joo, Minehiro Tonosaki, Fumiyasu Ikarashi, Hideo Kawaguchi, Noriaki Saito
  • Publication number: 20160183848
    Abstract: A motor performance evaluation apparatus 100 for evaluating motor performance of a subject, including: an acquisition unit 131 configured to acquire drawing stroke information including position information and time information on drawing stroke of the subject copying a predetermined single-stroke drawn figure; a detection unit 132 configured to detect a fall count indicating the number of times a drawing acceleration of the subject changes from a positive value to a negative value, based on the drawing stroke information; and an evaluation unit 133 configured to evaluate the motor performance of the subject, based on the fall count.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Applicant: TOYO UNIVERSITY
    Inventor: Hideo KAWAGUCHI
  • Publication number: 20160003654
    Abstract: Provided is an ultrasonic sensor which includes a piezoelectric vibrator made of a lithium niobate (LN) single crystal and may be used in a high temperature region by generating a high ultrasonic wave output, and prevents cracks from being generated in the crystal. A piezoelectric vibrator 1 of the present invention has a surface (Y-axis 36° cut surface) obtained by rotating a surface orthogonal to a Y-axis of the LN crystal about an X-axis by 36°±2° as an output surface. The ultrasonic sensor further includes a retarder 3 made of titanium and a bonding layer 2 for bonding one surface of the retarder 3 to the output surface. The bonding layer 2 is made of silver and frit glass, and the frit glass has a coefficient of linear expansion ranging from 5×10?6 K?1 to 15×10?6 K?1.
    Type: Application
    Filed: March 25, 2014
    Publication date: January 7, 2016
    Inventors: Ki Han Nam, Hyeon Kyu Joo, Minehiro Tonosaki, Fumiyasu Ikarashi, Hideo Kawaguchi, Noriaki Saito
  • Patent number: 8386192
    Abstract: There is provided a system for supporting the assessment as to which disease group the subject to be examined falls in or what position in the whole disease group the subject is in. This support system comprises the data storage part which stores feature values of optical bio-measurement data of many subjects including patients in multiple disease groups, the analysis part which extracts plural kinds of feature values from the optical bio-measurement data and the display part which displays the results of analysis in the analysis part associated with the dictionary data, wherein the display part produces a scatter diagram on which features values of the dictionary data are plotted, with one of the two feature values being plotted along the axis of abscissa and the other along the axis of ordinate, and displays the positions of the subject to be assessed on the scatter diagram superimposed on the scatter diagram.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: February 26, 2013
    Assignees: Hitachi Medical Corporation, Hitachi, Ltd., National UniversityCorporation Gumna University
    Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Hideo Kawaguchi, Naoki Tanaka, Masahiko Mikuni, Masato Fukuda
  • Patent number: 7974671
    Abstract: A living body information signal processing system (100) combining organically a living body optical measurement apparatus and a brain wave measurement apparatus, the living body optical measurement apparatus (300) in which inspection light of from visible to near infrared is irradiated on a head portion of a subject (140) and the penetration light is received and which measures an optical characteristic variation induced by a brain activity inside the head portion as a living body optical signal and the brain wave measurement apparatus (400) which measures an electrical characteristic variation induced by a brain activity inside the head portion of the subject as a brain wave signal, is provided with a probe device (50) used for both apparatus; and a living body information signal processing and displaying device (200) which displays the living body optical signal corresponding to respective measurement positions from the living body optical measurement apparatus and the brain wave signal corresponding to re
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: July 5, 2011
    Assignees: Hitachi Medical Corporation, Hitachi, Ltd.
    Inventors: Michiyuki Fujiwara, Tsuneaki Kawaguchi, Fumio Kawaguchi, Shingo Kawasaki, Atsushi Maki, Yukiko Hirabayashi, Yukari Yamamoto, Masashi Kiguchi, Hiroki Sato, Tsuyoshi Yamamoto, Takushige Katsura, Hideo Kawaguchi
  • Patent number: 7798981
    Abstract: A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: September 21, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
  • Publication number: 20090118602
    Abstract: There is provided a system for supporting the assessment as to which disease group the subject to be examined falls in or what position in the whole disease group the subject is in. This support system comprises the data storage part which stores feature values of optical bio-measurement data of many subjects including patients in multiple disease groups, the analysis part which extracts plural kinds of feature values from the optical bio-measurement data and the display part which displays the results of analysis in the analysis part associated with the dictionary data, wherein the display part produces a scatter diagram on which features values of the dictionary data are plotted, with one of the two feature values being plotted along the axis of abscissa and the other along the axis of ordinate, and displays the positions of the subject to be assessed on the scatter diagram superimposed on the scatter diagram.
    Type: Application
    Filed: June 8, 2006
    Publication date: May 7, 2009
    Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Hideo Kawaguchi, Naoki Tanaka, Masahiko Mikuni, Masato Fukuda
  • Publication number: 20090069663
    Abstract: A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.
    Type: Application
    Filed: November 7, 2008
    Publication date: March 12, 2009
    Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
  • Patent number: 7455648
    Abstract: A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
  • Patent number: 7353054
    Abstract: An apparatus which can objectively assess and display to what extent and to which disease the subject belongs based on the signals of changes in hemoglobin amount measured by the optical measurement apparatus is provided. The disease assessment apparatus comprises the feature extraction unit 15 for extracting features of the hemoglobin waveform, the feature analysis unit 16 and the storage unit 12 for storing features by each disease as database. The disease is assessed by extracting various kinds of feature amounts from the hemoglobin signals of the subject measured by the optical measurement apparatus in the feature extraction unit 15 and by applying multivariate analysis of similarities between feature amounts extracted and feature amounts stored by disease in the storage unit 12. Results of assessment are shown as scores expressing similarity with each disease group in a bar graph.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: April 1, 2008
    Assignees: Hitachi Medical Corporation, Hitachi, Ltd., National University Corporation Gunma University
    Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Naoki Tanaka, Hideo Kawaguchi, Masahiko Mikuni, Masato Fukuda
  • Publication number: 20070055118
    Abstract: An apparatus which can objectively assess and display to what extent and to which disease the subject belongs based on the signals of changes in hemoglobin amount measured by the optical measurement apparatus is provided. The disease assessment apparatus comprises the feature extraction unit 15 for extracting features of the hemoglobin waveform, the feature analysis unit 16 and the storage unit 12 for storing features by each disease as database. The disease is assessed by extracting various kinds of feature amounts from the hemoglobin signals of the subject measured by the optical measurement apparatus in the feature extraction unit 15 and by applying multivariate analysis of similarities between feature amounts extracted and feature amounts stored by disease in the storage unit 12. Results of assessment are shown as scores expressing similarity with each disease group in a bar graph.
    Type: Application
    Filed: September 9, 2004
    Publication date: March 8, 2007
    Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Naoki Tanaka, Hideo Kawaguchi, Masahiko Mikuni, Masato Fukuda
  • Patent number: 7171250
    Abstract: An image generating methodology for displaying brain activation areas with improved accuracy in a living body light measurement system for generating an image of the changes in blood volume of the brain. A spatial intensity distribution of changes in blood volume can be generated by detecting brain activation in many sampling points, and a spatial interpolation process is executed on this data. A threshold process is executed on the distribution to extract the distribution of coordinates having a signal intensity of at least the predetermined threshold. The displacement between the brain activation area and the maximal location of the distribution is stored in a recording unit of the system in order to compensate for the distribution extracted by the threshold process. Accordingly, brain activation areas can be estimated with greater location accuracy, and the diagnosis and medial treatment for brain diseases can likewise be executed with greater accuracy.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: January 30, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Yamamoto, Atsushi Maki, Takusige Katura, Hideo Kawaguchi
  • Publication number: 20060025659
    Abstract: In order to provide a compact device easy to handle and adjust for use in bloodless measurement of the glucose concentration, in which the angle of polarization varies in synchronism with the magnetic field modulation, the direction of applying the magnetic field is so arranged as to cross the optical axis.
    Type: Application
    Filed: March 3, 2005
    Publication date: February 2, 2006
    Inventors: Masashi Kiguchi, Tatsuya Tomaru, Hideaki Koizumi, Atsushi Maki, Hideo Kawaguchi
  • Publication number: 20050192490
    Abstract: An image generating methodology for displaying brain activation areas with improved accuracy in a living body light measurement system for generating an image of the changes in blood volume of the brain. A spatial intensity distribution of changes in blood volume can be generated by detecting brain activation in many sampling points, and a spatial interpolation process is executed on this data. A threshold process is executed on the distribution to extract the distribution of coordinates having a signal intensity of at least the predetermined threshold. The displacement between the brain activation area and the maximal location of the distribution is stored in a recording unit of the system in order to compensate for the distribution extracted by the threshold process. Accordingly, brain activation areas can be estimated with greater location accuracy, and the diagnosis and medial treatment for brain diseases can likewise be executed with greater accuracy.
    Type: Application
    Filed: December 14, 2004
    Publication date: September 1, 2005
    Inventors: Tsuyoshi Yamamoto, Atsushi Maki, Takusige Katura, Hideo Kawaguchi
  • Publication number: 20050065422
    Abstract: A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.
    Type: Application
    Filed: March 1, 2004
    Publication date: March 24, 2005
    Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
  • Publication number: 20040191747
    Abstract: The training of a trainee is performed in response to an instruction from a training task presentation (110) and the trainee responds by using a trainee's response collection unit (111). At the same time, a brain activity measurement unit (101) and a signal converter (103) using a cable (102) for transmitting signals of brain activity measure the brain activity of the trainee. Through a comparison between a response from the trainee and the result of brain activity measurement, a training effect is evaluated and a next training task to be performed is determined. For optimum training, the training is evaluated based on both of a training effect which can be evaluated from the outer appearance and brain activity corresponding thereto.
    Type: Application
    Filed: February 5, 2004
    Publication date: September 30, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Hirokazu Atsumori, Tsuyoshi Yamamoto, Yukiko Hirabayashi, Naoki Tanaka, Masashi Kiguchi, Hiroki Sato, Hideo Kawaguchi, Takusige Katura, Yukari Yamamoto
  • Patent number: 5660129
    Abstract: A sewing machine including a needle bar to which a sewing needle is secured, a needle-bar drive motor which reciprocates the needle bar, a hook, a hook drive motor which rotates the hook, a speed detector which detects a rotation speed of the needle-bar drive motor, an information obtaining device which obtains information indicating that the rotation speed of the needle-bar drive motor will change, and a control device which controls, based on the detected rotation speed of the needle-bar drive motor and the obtained information, the hook drive motor so that the hook is rotated in synchronism with the reciprocation of the needle bar.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: August 26, 1997
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kunihiko Murata, Hideo Kawaguchi
  • Patent number: 5328843
    Abstract: Apertures in a definite shape having a definite width and length are provided on one surface of a plate material having a definite thickness. One end of the apertures is connected with the other surface of the plate material and at the same time, is opened. Another end of the apertures is connected with the plate material on one surface and is also opened toward the other surface of a culture substrate. The plate material is closely contacted to one surface of the culture substrate for allocating nerve cells and observing growth of the neurites. Then, the cell suspension is supplied to the apertures. The cells in the suspension are allocated on the culture substrate in response to the apertures by centrifugation or spontaneous sedimentation. The plate material is then withdrawn.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: July 12, 1994
    Assignees: Hitachi, Ltd., Jun Fukuda
    Inventors: Jun Fukuda, Hideo Kawaguchi, Takejiro Ushiroda, Norio Shimizu, Kazuo Sato