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).
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Patent number: 10172542Abstract: 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: GrantFiled: December 28, 2015Date of Patent: January 8, 2019Assignee: TOYO UNIVERSITYInventor: Hideo Kawaguchi
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Patent number: 9494453Abstract: 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: GrantFiled: March 25, 2014Date of Patent: November 15, 2016Assignees: WOOJIN INC., SONIC CORPORATIONInventors: Ki Han Nam, Hyeon Kyu Joo, Minehiro Tonosaki, Fumiyasu Ikarashi, Hideo Kawaguchi, Noriaki Saito
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Publication number: 20160183848Abstract: 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: ApplicationFiled: December 28, 2015Publication date: June 30, 2016Applicant: TOYO UNIVERSITYInventor: Hideo KAWAGUCHI
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Publication number: 20160003654Abstract: 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: ApplicationFiled: March 25, 2014Publication date: January 7, 2016Inventors: Ki Han Nam, Hyeon Kyu Joo, Minehiro Tonosaki, Fumiyasu Ikarashi, Hideo Kawaguchi, Noriaki Saito
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Patent number: 8386192Abstract: 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: GrantFiled: June 8, 2006Date of Patent: February 26, 2013Assignees: Hitachi Medical Corporation, Hitachi, Ltd., National UniversityCorporation Gumna UniversityInventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Hideo Kawaguchi, Naoki Tanaka, Masahiko Mikuni, Masato Fukuda
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Patent number: 7974671Abstract: 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 reType: GrantFiled: September 3, 2004Date of Patent: July 5, 2011Assignees: 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
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Patent number: 7798981Abstract: 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: GrantFiled: November 7, 2008Date of Patent: September 21, 2010Assignee: Hitachi, Ltd.Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
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Publication number: 20090118602Abstract: 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: ApplicationFiled: June 8, 2006Publication date: May 7, 2009Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Hideo Kawaguchi, Naoki Tanaka, Masahiko Mikuni, Masato Fukuda
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Publication number: 20090069663Abstract: 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: ApplicationFiled: November 7, 2008Publication date: March 12, 2009Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
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Patent number: 7455648Abstract: 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: GrantFiled: March 1, 2004Date of Patent: November 25, 2008Assignee: Hitachi, Ltd.Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
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Patent number: 7353054Abstract: 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: GrantFiled: September 9, 2004Date of Patent: April 1, 2008Assignees: Hitachi Medical Corporation, Hitachi, Ltd., National University Corporation Gunma UniversityInventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Naoki Tanaka, Hideo Kawaguchi, Masahiko Mikuni, Masato Fukuda
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Publication number: 20070055118Abstract: 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: ApplicationFiled: September 9, 2004Publication date: March 8, 2007Inventors: Shingo Kawasaki, Noriyoshi Ichikawa, Fumio Kawaguchi, Naoki Tanaka, Hideo Kawaguchi, Masahiko Mikuni, Masato Fukuda
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Patent number: 7171250Abstract: 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: GrantFiled: December 14, 2004Date of Patent: January 30, 2007Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Yamamoto, Atsushi Maki, Takusige Katura, Hideo Kawaguchi
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Publication number: 20060025659Abstract: 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: ApplicationFiled: March 3, 2005Publication date: February 2, 2006Inventors: Masashi Kiguchi, Tatsuya Tomaru, Hideaki Koizumi, Atsushi Maki, Hideo Kawaguchi
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Publication number: 20050192490Abstract: 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: ApplicationFiled: December 14, 2004Publication date: September 1, 2005Inventors: Tsuyoshi Yamamoto, Atsushi Maki, Takusige Katura, Hideo Kawaguchi
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Publication number: 20050065422Abstract: 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: ApplicationFiled: March 1, 2004Publication date: March 24, 2005Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Kenko Uchida, Hideo Kawaguchi, Minoru Sakairi
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Publication number: 20040191747Abstract: 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: ApplicationFiled: February 5, 2004Publication date: September 30, 2004Applicant: Hitachi, Ltd.Inventors: Hirokazu Atsumori, Tsuyoshi Yamamoto, Yukiko Hirabayashi, Naoki Tanaka, Masashi Kiguchi, Hiroki Sato, Hideo Kawaguchi, Takusige Katura, Yukari Yamamoto
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Patent number: 5660129Abstract: 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: GrantFiled: February 5, 1996Date of Patent: August 26, 1997Assignee: Brother Kogyo Kabushiki KaishaInventors: Kunihiko Murata, Hideo Kawaguchi
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Patent number: 5328843Abstract: 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: GrantFiled: February 26, 1991Date of Patent: July 12, 1994Assignees: Hitachi, Ltd., Jun FukudaInventors: Jun Fukuda, Hideo Kawaguchi, Takejiro Ushiroda, Norio Shimizu, Kazuo Sato
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Patent number: 5304483Abstract: Stable, long-term cultures of animal cells are accomplished by calculating the ratio of lactic acid formed by the cells to the glucose consumed by the cells (the L/G ratio) and controlling the cultivation conditions to maintain the L/G ratio between the limits of from greater than 0 to 0.6. When the ratio is outside the desired range, the dissolved oxygen concentration in the medium is increased and/or the glucose concentration in the medium is decreased.Type: GrantFiled: March 14, 1990Date of Patent: April 19, 1994Assignee: Hitachi, Ltd.Inventors: Kouji Takeuchi, Hideo Kawaguchi, Tadashi Ishibashi, Norio Shimizu