Patents by Inventor Atsushi Yamaguchi

Atsushi Yamaguchi 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).

  • Publication number: 20220208671
    Abstract: A semiconductor-mounted product includes a semiconductor package, a wiring substrate, four or more soldered portions, and a resin-reinforced portion. Each of the soldered portions electrically connects the semiconductor package to the wiring of the wiring substrate. The resin-reinforced portion is formed on a side surface of each of the soldered portions. Each of the soldered portions has a first solder region formed closer to the semiconductor package than the wiring substrate and a second solder region formed closer to the wiring substrate than the semiconductor package. A proportion of a void present in a polygon connecting centers of soldered portions located at outermost positions among the soldered portions to a sum of the void and the resin-reinforced portion is from 10% to 99%, inclusive.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Atsushi YAMAGUCHI, Yasuo FUKUHARA
  • Publication number: 20220139411
    Abstract: An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a discontinuity corrector for correcting the discontinuity of the decoded audio.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Patent number: 11270715
    Abstract: An audio signal processing device comprises a discontinuity detector configured to determine an occurrence of a discontinuity from a sudden increase of an amplitude of decoded audio obtained by decoding the first audio packet which is received correctly after an occurrence of a packet loss, and a discontinuity corrector for correcting the discontinuity of the decoded audio by changing, in a state buffer, a distance between elements of Immittance Spectral Pair/Immittance Spectral Frequency (ISF/LSF) parameters of a past frame.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: March 8, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Publication number: 20220059108
    Abstract: An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 24, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Publication number: 20220018999
    Abstract: [Object] To switch display while reducing a difference in luminance between regions more. [Solution] Provided is a display board including a composite region that includes a portion provided with a metal film and a potion provided with no metal film. The portion provided with the metal film or the portion provided with no metal film has a predetermined dispersion pattern. In addition, provided is a display device including: a display board including a composite region that includes a portion provided with a metal film and a potion provided with no metal film, the portion provided with the metal film or the portion provided with no metal film having a predetermined dispersion pattern; and a light source that emits illumination light toward the display board.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 20, 2022
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Atsushi YAMAGUCHI
  • Publication number: 20220011588
    Abstract: [Object] To switch display while reducing a difference in luminance between regions more. [Solution] Provided is a display board including: a first region that includes a metal film that is striped in a first direction; a second region that includes the metal film that is striped in a second direction, which is perpendicular to the first direction; a composite region that partially includes the metal film and transmits two types of illumination light, which have different polarization directions, at comparable rates; and a light shielding region that has a surface entirely covered with the metal film. In addition, provided is a display device including: the display board; and a light source that emits the two types of illumination light, which have different polarization directions, toward the display board.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 13, 2022
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Atsushi YAMAGUCHI
  • Publication number: 20220005753
    Abstract: Semiconductor device A1 includes: first terminal 201A and second terminal 201B; first switching element 1A including first gate electrode 12A, first source electrode 13A and first drain electrode 14A; and second switching element 1B including second gate electrode 12B, second source electrode 13B and second drain electrode 14B. First switching element 1A and second switching element 1B are connected in series to each other between first terminal 201A and second terminal 201B. Semiconductor device A1 includes first capacitor 3A connected in parallel to first switching element 1A and second switching element 1B between first terminal 201A and second terminal 201B. First switching element 1A and second switching element 1B are aligned in y direction. First capacitor 3A overlaps with at least one of first switching element 1A and second switching element 1B as viewed in z direction. These arrangements serve to suppress surge voltage.
    Type: Application
    Filed: October 9, 2019
    Publication date: January 6, 2022
    Inventors: Atsushi YAMAGUCHI, Hiroyuki SAKAIRI, Takukazu OTSUKA
  • Publication number: 20210408758
    Abstract: Semiconductor laser device A1 includes semiconductor laser element 4, switching element 5 having gate electrode 52, source electrode 53 and drain electrode 54, and support member 1 having conductive part 3 that forms a conduction path to switching element 5 and semiconductor laser element 4 and supports semiconductor laser element 4 and switching element 5. Conductive part 3 has front surface first section 311 spaced apart from semiconductor laser element 4. Semiconductor laser device A1 includes at least one first wire 71 connected to source electrode 53 of switching element 5 and semiconductor laser element 4 and also at least one second wire 72 connected to source electrode 53 of switching element 5 and front surface first section 311 of conductive part 3. Such an arrangement reduces the inductance component of semiconductor laser device A1.
    Type: Application
    Filed: November 20, 2019
    Publication date: December 30, 2021
    Inventors: Atsushi YAMAGUCHI, Koki SAKAMOTO
  • Patent number: 11211077
    Abstract: An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 28, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Patent number: 11195538
    Abstract: An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 7, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Publication number: 20210370948
    Abstract: A vehicle control method for controlling a vehicle includes: (A) detecting a rainfall condition or a non-rainfall condition using a first sensor mounted on the vehicle; (B) determining whether the vehicle is passing under an upper structure covering the vehicle using a second sensor mounted on the vehicle; (C) determining that the rainfall condition is continuing even when a transition from the rainfall condition to the non-rainfall condition is detected in a case where the vehicle passes under the upper structure; and (D) controlling the vehicle based on whether a weather condition is the rainfall condition or the non-rainfall condition.
    Type: Application
    Filed: May 4, 2021
    Publication date: December 2, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Yamaguchi, Yusuke Morita
  • Patent number: 11176955
    Abstract: An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: November 16, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Patent number: 11158331
    Abstract: An audio signal transmission device for encoding an audio signal includes an audio encoding unit that encodes an audio signal and a side information encoding unit that calculates and encodes side information from a look-ahead signal. An audio signal receiving device for decoding an audio code and outputting an audio signal includes: an audio code buffer that detects packet loss based on a received state of an audio packet, an audio parameter decoding unit that decodes an audio code when an audio packet is correctly received, a side information decoding unit that decodes a side information code when an audio packet is correctly received, a side information accumulation unit that accumulates side information obtained by decoding a side information code, an audio parameter missing processing unit that outputs an audio parameter upon detection of audio packet loss, and an audio synthesis unit that synthesizes decoded audio from the audio parameter.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 26, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kimitaka Tsutsumi, Kei Kikuiri, Atsushi Yamaguchi
  • Publication number: 20210324363
    Abstract: Obtained is: a method for efficiently producing a polypeptide containing a non-canonical amino acid; a method for incorporating a non-canonical amino acid into a polypeptide; a method for producing tRNA bound to a non-canonical amino acid; a a non-canonical amino acid incorporation system; a material for use in these methods; or the like.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 21, 2021
    Inventors: Kensaku SAKAMOTO, Atsushi YAMAGUCHI, Fumie KIMURA, Shigeyuki YOKOYAMA, Tatsuo YANAGISAWA, Eiko SEKI, Mitsuo KURATANI
  • Publication number: 20210302064
    Abstract: A muffler provided on an air-blowing side of a fan of a device main body provided with the fan, the muffler includes a duct provided on the air-blowing side of the fan and having a wall portion facing the fan; and a sound absorbing material provided on an inner surface of the wall portion on a side of the fan, wherein a relationship of a<L<{(b?a)/2+a}/n is satisfied where a distance from an end of the fan on a side of the sound absorbing material to an end of the sound absorbing material on a side of the fan is L, a length of a region surface, where the fan is provided, in a short direction is a, and a length of the region surface in a long direction is b, the region surface being of the device main body.
    Type: Application
    Filed: January 21, 2021
    Publication date: September 30, 2021
    Applicant: FUJITSU LIMITED
    Inventor: Atsushi Yamaguchi
  • Patent number: 11095217
    Abstract: A ripple injection circuit equipped with: a capacitor that passes a frequency component of an input voltage or a frequency component of an output voltage and that generates a first ripple voltage having a first ripple component; and an integration circuit that integrates a comparison result signal and that generates a second ripple voltage having a second ripple component. The first ripple component and the second ripple component are added to a feedback voltage.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 17, 2021
    Assignee: Rohm Co., Ltd.
    Inventors: Junichi Kashiwagi, Atsushi Yamaguchi, Yohei Moriyama, Yuta Okawauchi, Yusuke Nakakohara, Ken Nakahara
  • Publication number: 20210202421
    Abstract: An electronic-part-reinforcing thermosetting resin composition has: a viscosity of 5 Pa·s or less at 140° C.; a temperature of 150° C. to 170° C. as a temperature corresponding to a maximum peak of an exothermic curve representing a curing reaction; and a difference of 20° C. or less between the temperature corresponding to the maximum peak and a temperature corresponding to one half of the height of the maximum peak in a temperature rising range of the exothermic curve.
    Type: Application
    Filed: May 24, 2019
    Publication date: July 1, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Jin JIN, Atsushi YAMAGUCHI, Yasuo FUKUHARA
  • Patent number: 11041715
    Abstract: An irradiation unit configured to scan and irradiate a sample with pulse waves; a reception unit configured to receive reflected waves of the pulse waves from the sample; a waveform generation unit configured to generate time waveforms of a signal representing the reflected waves at respective scan positions of the pulse waves; and a waveform correction unit configured to detect at least one peak in each of the time waveforms, and correct each of the time waveforms on a basis of each of positions of the at least one peak in the time waveforms are included.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 22, 2021
    Assignee: PIONEER CORPORATION
    Inventor: Atsushi Yamaguchi
  • Publication number: 20210175142
    Abstract: An integrated circuit (IC) tag includes: an IC chip; a substrate that is provided with an antenna on a first surface; an adhesive portion configured to adhere a side surface of the IC chip and a peripheral of the IC chip in a state that a terminal of the IC chip is electrically coupled to the antenna; and a first member that is provided between the antenna and the adhesive portion, the first member having an elastic modulus higher than an elastic modulus of the antenna.
    Type: Application
    Filed: October 27, 2020
    Publication date: June 10, 2021
    Applicant: FUJITSU LIMITED
    Inventors: Shinichi Tajima, Yasushi Masuda, Tetsuro Yamada, Atsushi Yamaguchi
  • Patent number: 11019415
    Abstract: A front left speaker cover for a front left speaker includes a first hole forming portion in which holes each having a bottom are formed. The first hole forming portion is a section including a first edge of the front left speaker cover. The holes include a first hole and a second hole. The first hole is formed in the first edge of the front left speaker cover and opens in a surface direction of the front left speaker cover. The second hole is formed in a section different from the first edge and a fourth edge. The distance from the surface of the front left speaker cover to the bottom of the first hole is shorter than the distance from the surface of the front left speaker cover to the bottom of the second hole.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 25, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuyuki Nagai, Hiroki Takada, Atsushi Yamaguchi