Patents by Inventor Toshifumi Yamamoto

Toshifumi Yamamoto 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: 10995119
    Abstract: The present invention provides a novel molecule that catalyzes a hydrolysis reaction and is different from enzyme proteins. The catalytic peptide according to the present invention is a catalytic peptide that catalyzes a hydrolysis reaction, including at least one peptide selected from the group consisting of the following peptides (A1) to (A4): (A1) a peptide consisting of Box A and at least one of an upstream region and a downstream region therefrom in a Tob/BTG protein; (A2) a peptide consisting of a partial region of the peptide (A1); (A3) a peptide that consists of an amino acid sequence obtained by deletion, substitution, addition, and/or insertion of one or more amino acids in an amino acid sequence of the peptide (A1) or (A2) and has hydrolysis activity; and (A4) a peptide consisting of an amino acid sequence with a sequence identity of at least 85% to the amino acid sequence of the peptide (A1) or (A2) and having hydrolysis activity.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 4, 2021
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Toshifumi Akizawa, Tadashi Yamamoto
  • Patent number: 10990712
    Abstract: There is provided a contact force evaluation method for evaluating a contact force against a supporting member of a tube bundle positioned in a fluid and supported by the supporting member, including a contact force setting step of setting a contact force of the tube bundle, a probability density function calculation step of calculating a probability density function of a reaction force received by the supporting member from the tube bundle in response to a predetermined input, using a vibration analysis model of the tube bundle and the supporting member, a probability calculation step of calculating a probability that a reaction force equal to or higher than the set contact force occurs, based on the calculated probability density function, and an evaluation step of evaluating the set contact force, based on the calculated probability.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: April 27, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Makoto Iwasaki, Kazuo Hirota, Shingo Nishida, Tetsuya Arikawa, Ryoichi Kawakami, Masaaki Katayama, Toshifumi Nariai, Kohei Yamamoto
  • Publication number: 20150365764
    Abstract: According to one embodiment, a method includes giving a phase difference between a first phase of a first sound output from a first diaphragm and a second phase of a second sound output from a second diaphragm. The first diaphragm and the second diaphragm are arranged adjacent to each other in a first direction toward a head portion of a listener. The first diaphragm and the second diaphragm extend in a second direction substantially intersecting with the first direction.
    Type: Application
    Filed: October 30, 2014
    Publication date: December 17, 2015
    Inventor: Toshifumi YAMAMOTO
  • Publication number: 20150156600
    Abstract: According to one embodiment, a method of reproducing sound from an electronic device includes delaying a first phase of a first sound with respect to a phase of an input signal, and advancing a second phase of a second sound with respect to the phase of the input signal. The first sound is configured to be output from a first speaker of a plurality of speakers arranged adjacent to each other. The first speaker is at a first position. The second sound is configured to be output from a second speaker out of the plurality speakers. The second speaker is at a second position. A distance between the first position and a user is smaller than a distance between the second position and the user.
    Type: Application
    Filed: July 29, 2014
    Publication date: June 4, 2015
    Inventor: Toshifumi YAMAMOTO
  • Patent number: 9014383
    Abstract: According to one embodiment, sound processor includes: communication module; outputting module; recording module; display; input module; controller; and calculating module. The controller (i) displays, on display, message prompting user to move a sound input device to position proximate to speaker, (ii) causes the outputting module to output the test sound and causes the recording module to record first sound, (iii) displays, after the first sound is recorded, on the display, message prompting the user to move the sound input device to listening position, and (iv) causes the outputting module to output the test sound and causes the recording module to record second sound. The calculating module finds a first frequency characteristic of the first sound and a second frequency characteristic of the second sound, and calculates, based on a difference between the first and second frequency characteristics, a value for correcting the second frequency characteristic to a target frequency characteristic.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: April 21, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Kanishima, Toshifumi Yamamoto
  • Patent number: 8873766
    Abstract: According to one embodiment, a sound signal processor includes: a connector; an input module; and a generator. The connector is connectable with an earphone. The input module receives and processes a plurality of sound signals corresponding to sound of a plurality of times output from the earphone, respectively. The generator generates, by using first data indicating a frequency characteristic of a first sound signal among the received and processed sound signals and second data indicating a frequency characteristic of a second sound signal among the received and processed sound signals, correction data correcting a frequency characteristic of the earphone to be a target frequency characteristic set as a target. The first data is used for a first frequency band lower than or equal to a reference. The second data is used for a second frequency band higher than the reference.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshifumi Yamamoto, Tadashi Amada
  • Patent number: 8767977
    Abstract: According to one embodiment, an acoustic characteristic correction coefficient calculation apparatus includes a frequency converter, a smoother, a frequency inverter, a cutter, and a calculator. The frequency converter is configured to convert a first impulse response corresponding to an input acoustic signal to a frequency domain. The smoother is configured to smooth amplitude and phase corresponding to the frequency domain converted by the frequency converter. The frequency inverter is configured to convert a frequency characteristic smoothed by the smoother to a time domain. The cutter is configured to cut out a second impulse response configured by the time domain obtained by converting the frequency characteristic by use of the frequency inverter by a preset tap number. The calculator is configured to calculate a correction coefficient used to correct an acoustic characteristic based on a result cut out by the cutter.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 1, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Fukuda, Toshifumi Yamamoto, Yasuhiro Kanishima
  • Publication number: 20130329899
    Abstract: According to one embodiment, a measuring apparatus includes: an output module configured to temporally exclusively output, to a measuring target system, a first output signal corresponding to a first measuring signal for sweeping frequency and a second output signal corresponding to a second measuring signal for sweeping frequency and having a different amplitude characteristic from an amplitude characteristic of the first measuring signal; and a frequency characteristic computation module configured to synthesize a first frequency amplitude spectrum obtained from a first reception signal when a sound output from the measuring target system based on the first output signal is received and a second frequency amplitude spectrum obtained from a second reception signal when a sound output from the measuring target system based on the second output signal is received to generate frequency characteristic data representing an acoustic characteristic.
    Type: Application
    Filed: February 27, 2013
    Publication date: December 12, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kimio Miseki, Tadashi Amada, Toshifumi Yamamoto
  • Publication number: 20130315405
    Abstract: According to one embodiment, sound processor includes: communication module; outputting module; recording module; display; input module; controller; and calculating module. The controller (i) displays, on display, message prompting user to move a sound input device to position proximate to speaker, (ii) causes the outputting module to output the test sound and causes the recording module to record first sound, (iii) displays, after the first sound is recorded, on the display, message prompting the user to move the sound input device to listening position, and (iv) causes the outputting module to output the test sound and causes the recording module to record second sound. The calculating module finds a first frequency characteristic of the first sound and a second frequency characteristic of the second sound, and calculates, based on a difference between the first and second frequency characteristics, a value for correcting the second frequency characteristic to a target frequency characteristic.
    Type: Application
    Filed: February 20, 2013
    Publication date: November 28, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro Kanishima, Toshifumi Yamamoto
  • Publication number: 20130223636
    Abstract: According to one embodiment, a measurement apparatus is configured to supply, to a output device, a second measurement signal to sweep the frequency, to receive a second received signal output from the output device when the second measurement signal is supplied to the output device, and to calculate an impulse response by convolving the second received signal and an inverted measurement signal having an inverted characteristic of the second measurement signal. The second measurement signal has a signal characteristic obtained by multiplying the first measurement signal by a characteristic of a characteristic of the amplitude spectrum.
    Type: Application
    Filed: November 8, 2012
    Publication date: August 29, 2013
    Inventors: Tadashi Amada, Toshifumi Yamamoto, Kimio Miseki
  • Patent number: 8498429
    Abstract: According to one embodiment, an acoustic correction apparatus includes an input module, a calculator, a divider, a converter, an extractor, a synthesizer, and a generator. The input module receives an audio signal propagated through a sound field. The calculator calculates an impulse response from the audio signal. The divider divides the impulse response into first and second impulse responses. The converter converts the first and second impulse responses into first and second frequency spectrums. The extractor specifies an amplitude component of the first frequency spectrum with a peak relatively higher than that of the amplitude component of the first frequency spectrum, and extracts the peak as a resonance component. The synthesizer synthesizes a first property and a second property for attenuating the resonance component. The generator generates a correction filter for performing correction to obtain the synthesized property.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 30, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Kanishima, Takanobu Mukaide, Toshifumi Yamamoto
  • Patent number: 8488807
    Abstract: An audio signal compensation device includes: a signal processor configured to perform filtering on an input audio signal; a filter coefficients storage module configured to store a plurality of filter coefficients; a user interface configured to provide options for a determination of filter coefficients to a user and to obtain a selection result from the user; and a filter coefficients determining module configured to determine a set of filter coefficients among the plurality of filter coefficients based on the selection result.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: July 16, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Norikatsu Chiba, Kimio Miseki, Yasuhiro Kanishima, Kazuyuki Saito, Toshifumi Yamamoto, Takashi Fukuda
  • Patent number: 8368579
    Abstract: Disclosed herein is a remote controller apparatus including: preset holding means for holding, per preset code, preset information representative of correspondence between buttons of a plurality of trial-targeted remote controllers on the one hand, and an output signal given when each of the buttons is pushed on the other hand; evaluation value creating means for counting, out of the preset information held in the preset holding means, the number of preset codes of which the output signal is the same for each of the pushed buttons, before setting the largest count as an evaluation value of the button in question; and button presenting means for presenting as a trial button the button of which the evaluation value is the smallest.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: February 5, 2013
    Assignee: Sony Corporation
    Inventors: Toshifumi Yamamoto, Tomoko Kumagai, Masayuki Kihara, Atsushi Naoi
  • Publication number: 20130028429
    Abstract: According to one embodiment, an information processing apparatus includes a measurement module and a correction filter design module. The measurement module measures frequency characteristics of an earphone connected to an output terminal using a measurement audio signal output from the output terminal and collected by a microphone. The correction filter design module designs a correction filter in association with one range of a treble range higher than a crossover frequency range and a bass range lower than the crossover frequency range, based on the measured frequency characteristics of the earphone and predetermined goal frequency characteristics.
    Type: Application
    Filed: May 2, 2012
    Publication date: January 31, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tadashi Amada, Toshifumi YAMAMOTO, Kimio MISEKI
  • Patent number: 8331604
    Abstract: According to one embodiment, A microphone-earphone includes a speaker connected to an acoustic device configured to measure acoustic characteristics of a listener's external auditory canal, and configured to output an acoustic signal toward the listener's external auditory canal, a microphone device disposed outside the listener's external auditory canal, an acoustic tube including one end connected to the microphone device and the other end opening to the listener's external auditory canal, and a housing including an opening portion which accommodates the speaker and is so disposed as to guide sound, which is output from the speaker, to the listener's external auditory canal. An inside diameter of the acoustic tube is less than a diameter of the opening portion.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: December 11, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyuki Saito, Toshifumi Yamamoto, Norikatsu Chiba, Yasuhiro Kanishima, Takashi Fukuda
  • Publication number: 20120275616
    Abstract: According to one embodiment, a sound signal processor includes: a connector; an input module; and a generator. The connector is connectable with an earphone. The input module receives and processes a plurality of sound signals corresponding to sound of a plurality of times output from the earphone, respectively. The generator generates, by using first data indicating a frequency characteristic of a first sound signal among the received and processed sound signals and second data indicating a frequency characteristic of a second sound signal among the received and processed sound signals, correction data correcting a frequency characteristic of the earphone to be a target frequency characteristic set as a target. The first data is used for a first frequency band lower than or equal to a reference. The second data is used for a second frequency band higher than the reference.
    Type: Application
    Filed: January 6, 2012
    Publication date: November 1, 2012
    Inventors: Toshifumi Yamamoto, Tadashi Amada
  • Patent number: 8280062
    Abstract: According to one embodiment, a sound corrector includes a signal outputter, a response signal, a frequency specifier, a coefficient specifier, a filter, and an outputter. The signal outputter outputs a measurement signal to measure acoustical properties of an object to be measured. The response signal receiver receives a response signal from the object in response to the measurement signal. The frequency specifier specifies a resonant frequency at a resonance peak from the response signal. The coefficient specifier specifies a correction coefficient of a correction filter for reducing the resonant frequency based on the specified resonant frequency. The filter performs filtering on a signal to be output to the object using the correction filter with the correction coefficient. The outputter outputs the signal having undergone the filtering to the object.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: October 2, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Fukuda, Toshifumi Yamamoto, Norikatsu Chiba, Shigeyasu Iwata, Yasuhiro Kanishima, Kazuyuki Saito, Yutaka Oki
  • Publication number: 20120219161
    Abstract: According to one embodiment, a playback apparatus includes a generator, a corrector, and an audio signal output module. The generator is configured to generate correction data used for correcting a frequency characteristic of sound output from a headphone based on first data and second data, the first data indicating the frequency characteristic of sound output from the headphone, and the second data indicating a target frequency characteristic. The corrector is configured to correct audio data based on the correction data. The audio signal output module is configured to output an audio signal based on the corrected audio data to the headphone.
    Type: Application
    Filed: November 11, 2011
    Publication date: August 30, 2012
    Inventors: Tadashi Amada, Toshifumi Yamamoto, Kazuyuki Saito
  • Publication number: 20120158809
    Abstract: According to one embodiment, a compensation filtering device includes an impulse response calculator, a coefficient calculator, and an adder. The impulse response calculator calculates an impulse response of a reproduction system comprising a sound field. The coefficient calculator calculates a compensation coefficient to compensate for a tap coefficient such that a direct current gain of an extracted finite impulse response (FIR) filter with a predetermine number of taps extracted from an FIR filter having reverse characteristics of the impulse response takes a predetermined value. The tap coefficient indicates a weight of each of the taps. The adder adds the compensation coefficient to the tap coefficient of each of the taps of the extracted FIR filter to generate a compensation filter to compensate for acoustic characteristics of the reproduction system.
    Type: Application
    Filed: July 7, 2011
    Publication date: June 21, 2012
    Inventors: Toshifumi Yamamoto, Yasuhiro Kanishima
  • Publication number: 20120155673
    Abstract: According to one embodiment, a compensation filtering device includes an impulse response calculator, a group delay compensator, and an extractor. The impulse response calculator calculates an impulse response of a reproduction system comprising a sound field. The group delay compensator compensates for group delay characteristics in a low frequency range lower than a predetermined frequency for a finite impulse response (FIR) filter having reverse characteristics of the impulse response based on group delay characteristics in a middle to high frequency range higher than the predetermined frequency. The extractor extracts a predetermined number of taps from the FIR filter that has been compensated for by the group delay compensator.
    Type: Application
    Filed: August 25, 2011
    Publication date: June 21, 2012
    Inventors: Toshifumi YAMAMOTO, Yasuhiro KANISHIMA