Patents by Inventor Hiroyuki Sasaki

Hiroyuki Sasaki 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: 20240151760
    Abstract: A fault detection circuit according to the present disclosure includes a rectangular pulse comparison circuit configured to generate, for each combination of the pulse width modulated signals, detection signals each indicating a difference component between pulse widths of two pulse width modulated signals having phases adjacent to each other, and a fault diagnosis unit configured to detect a fault in an inverter based on a shift in a combination of logic levels of a plurality of the detection signals output by the rectangular pulse comparison circuit from a preset determination value. The fault diagnosis unit uses the determination value that is different for each motor rotation angle assuming in advance that two alternating-current signals having phases adjacent to each other among the three-phase alternating-current signals have the same voltage.
    Type: Application
    Filed: October 10, 2023
    Publication date: May 9, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki IYAMA, Yu SASAKI
  • Publication number: 20240151755
    Abstract: A fault detection circuit according to the present disclosure includes a plurality of phase difference detection circuits configured to generate phase difference measurement signals having a pulse width corresponding to a magnitude of a phase difference between two of drive signals of different phases among a plurality of drive signals, a plurality of smoothing circuits configured to smooth the phase difference measurement signals, which have been associated with the smoothing circuits, respectively, in advance, and output phase difference detection voltages each having a voltage value corresponding to the magnitude of the phase difference; and an error detection circuit configured to compare the plurality of phase difference detection voltages and switch abnormality detection signals from a disabled state to an enabled state when there is the phase difference detection voltage having a voltage value exceeding a preset tolerance range.
    Type: Application
    Filed: October 13, 2023
    Publication date: May 9, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu SASAKI, Hiroyuki IYAMA
  • Publication number: 20240131866
    Abstract: A pneumatic tire comprises: a tread portion having a ground contacting surface; a sidewall portions having an outer surface; a bead portions; a carcass extending between the bead portions; and an inner rubber extending between bead portions. The inner rubber comprises a first portion extending through the tread portion with a first thickness t1, and a second portion extending through the sidewall portion with a second thickness t2. The first thickness t1 is more than the second thickness t2. In a meridian cross section of the tire under its normal state, when a first reference point (Pb1), a second reference point (Pb2), a shoulder reference point (Ps), a reference line segment (Lb), and a shoulder line segment (Ls) are defined, then a length (L1) of the shoulder line segment (Ls) is 85.9% to 89.3% of a length (L2) of the reference line segment (Lb).
    Type: Application
    Filed: September 25, 2023
    Publication date: April 25, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Tatsuya SASAKI, Tsukasa YANO, Rena ONITSUKA, Masaki TERASHIMA, Yusuke SUEYOSHI, Hiroyuki NAKAYAMA, Junya SUENO
  • Publication number: 20240136491
    Abstract: A light emitting device includes a substrate and a light emitting body. The light emitting body includes a plurality of light emitting elements and an insulating body in which the plurality of light emitting elements is embedded except for a light emitting surface of the plurality of light emitting elements. The plurality of light emitting elements is formed from a singulated compound semiconductor layer and is arranged in a row direction and a column direction. The substrate includes a drive circuit, a first terminal, and a second terminal and is joined to the light emitting body. The drive circuit drives the plurality of light emitting elements. The first terminal and the second terminal electrically couple the drive circuit and the plurality of light emitting elements to each other.
    Type: Application
    Filed: February 21, 2022
    Publication date: April 25, 2024
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Toshihiro MIURA, Toshiaki HASEGAWA, Toru SASAKI, Hiroyuki KASHIHARA
  • Publication number: 20240114801
    Abstract: A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain a perovskite-type oxide containing Pb at an A site and containing Zr, Ti, and M at a B site as a main component, an M composition ratio in the first piezoelectric film is different from an M composition ratio in the second piezoelectric film, and polarization-electric field hysteresis measured for the first piezoelectric film with the first electrode grounded and the second electrode as a drive electrode, and polarization-electric field hysteresis measured for the second piezoelectric film with the second electrode grounded and the third electrode as a drive electrode are shifted in the same electric field direction with respect to origins thereof.
    Type: Application
    Filed: August 29, 2023
    Publication date: April 4, 2024
    Inventors: Seigo NAKAMURA, Hiroyuki KOBAYASHI, Shinya SUGIMOTO, Tsutomu SASAKI
  • Publication number: 20240114797
    Abstract: A piezoelectric element includes a substrate, a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode, in which both the first piezoelectric film and the second piezoelectric film have spontaneous polarizations aligned in a film thickness direction and directions of the spontaneous polarizations are the same, and in a case where in a hysteresis curve of one piezoelectric film, a coercive voltage Vcf+, a coercive voltage Vcf?, |Vcf+?Vcf?|=?Vcf, and the larger of an absolute value of Vcf+ and an absolute value of Vcf? is denoted by Vcf, and in a hysteresis curve of the other piezoelectric film, a coercive voltage Vcr+, a coercive voltage Vcr?, |Vcr+?Vcr?|=?Vcr, and the larger of an absolute value of Vcr+ and an absolute value Vcr? is denoted by Vcr, ?Vcr<?Vcf?0.2 and Vcr<Vcf?0.2 are satisfied.
    Type: Application
    Filed: August 23, 2023
    Publication date: April 4, 2024
    Inventors: Hiroyuki KOBAYASHI, Seigo NAKAMURA, Shinya SUGIMOTO, Tsutomu SASAKI
  • Publication number: 20240114793
    Abstract: A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain PZT having a metal element M doped thereto, as a main component, one piezoelectric film of the first piezoelectric film and the second piezoelectric film has a spontaneous polarization aligned in a film thickness direction, and in a case where in a hysteresis curve showing polarization-voltage characteristics of the one piezoelectric film, a coercive voltage Vcf+ on a positive side and a coercive voltage Vcf? on a negative side, and in polarization-voltage characteristics of the other piezoelectric film, a coercive voltage Vcr+ on a positive side and a coercive voltage Vcr? on a negative sid, |Vcr++Vcr?|<|Vcf++Vcf?|?0.2 is satisfied.
    Type: Application
    Filed: August 29, 2023
    Publication date: April 4, 2024
    Inventors: Hiroyuki KOBAYASHI, Seigo NAKAMURA, Shinya SUGIMOTO, Tsutomu SASAKI
  • Publication number: 20240114796
    Abstract: A piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain a perovskite-type oxide containing Pb Zr, Ti, and M, as a main component, Pb composition ratios in the perovskite-type oxides contained in the first piezoelectric film and the second piezoelectric film are different from each other, and polarization-electric field hysteresis measured for the first piezoelectric film with the first electrode grounded and the second electrode as a drive electrode, and polarization-electric field hysteresis measured for the second piezoelectric film with the second electrode grounded and the third electrode as a drive electrode are shifted in the same electric field direction with respect to origins thereof.
    Type: Application
    Filed: August 23, 2023
    Publication date: April 4, 2024
    Inventors: Seigo NAKAMURA, Hiroyuki KOBAYASHI, Shinya SUGIMOTO, Tsutomu SASAKI
  • Publication number: 20240101849
    Abstract: A printed material (100) has a base substance (1), an absorption part (22) (a near infrared ray absorbing layer (3)) that is provided on the base substance (1) to contain a near infrared ray absorbing material, and a code shape (20) that is formed in a predetermined shape from the absorption part (22) or by covering a part of the absorption part (22) and that outputs code information (CI), upon irradiation with light of near infrared rays, as reflected light of the light of near infrared rays, where in the near infrared ray absorbing material, in a case where an integral value of transmittance of visible light at 400 nm to 750 nm is denoted as a first integral value X1, and an integral value of transmittance in a 20 nm width that is centered on a predetermined wavelength ? of the light of near infrared rays is denoted as a second integral value X2, a ratio R=X2/X1 between the second integral value X2 and the first integral value X1 is 0.09 or more.
    Type: Application
    Filed: November 25, 2021
    Publication date: March 28, 2024
    Applicant: YAMAMOTO CHEMICALS, INC.
    Inventors: Takamichi AMAKO, Hiroyuki SASAKI
  • Patent number: 11858315
    Abstract: A defogging device includes a temperature sensor, an infrared sensor, a surface temperature measuring unit, a humidity sensor, a dew point temperature measuring unit, and a fogging/dew condensation determining unit. When the defogging device is instructed to perform measurement, the temperature sensor measures temperature. Additionally, measurement by the infrared sensor is performed, and based on an output of the infrared sensor and an output of the temperature sensor, the surface temperature measuring unit measures glass surface temperature. Measurement by the humidity sensor is performed, and based on an output of the humidity sensor and the output of the temperature sensor, the dew point temperature measuring unit measures dew point temperature. Lastly, the fogging/dew condensation determining unit compares the glass surface temperature with the dew point temperature to determine whether fogging or dew condensation occurs or not.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: January 2, 2024
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Hiroyuki Sasaki
  • Patent number: 11820333
    Abstract: Relative humidity or dew point temperature depending on changes in barometric pressure is measured without using any barometric pressure sensor. A humidity measuring device includes an elevation obtaining unit configured to obtain elevation of a humidity measurement point, a barometric pressure calculating unit configured to calculate barometric pressure at the humidity measurement point from a calculation formula into which a value of the elevation obtained by the elevation obtaining unit is input, and a humidity correcting unit configured to correct humidity on a basis of a barometric pressure value calculated by the barometric pressure calculating unit.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 21, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Hiroyuki Sasaki
  • Patent number: 11629998
    Abstract: A radiation temperature measuring device includes: an infrared sensor that detects a wavelength including an absorption band by atmosphere; an absorption rate calculation unit that calculates an absorption rate by the atmosphere when measuring a surface temperature of an object from output of the infrared sensor; an output storage unit that stores conversion information for converting the output of the infrared sensor into the surface temperature of the object; a surface temperature calculation correction unit that calculates the surface temperature of the object from the output of the infrared sensor, the absorption rate calculated by the absorption rate calculation unit, and the conversion information; and an absorption rate storage unit that stores in advance the absorption rate by the atmosphere when the conversion information is set, in which the calculated surface temperature of the object is corrected with the absorption rate stored in the absorption rate storage unit.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: April 18, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Hiroyuki Sasaki
  • Patent number: 11573128
    Abstract: An object of the present invention is to provide a radiation temperature measuring device capable of preventing reduction in the accuracy of temperature measurement due to an electromagnetic wave reflected by a measurement target. A radiation temperature measuring device includes a reflective polarizing plate configured to reflect a polarized wave of one direction in an electromagnetic wave radiated from an object to be measured and transmit or absorb a polarized wave of a direction perpendicular to the one direction and an infrared sensor configured to detect the polarized electromagnetic wave of the one direction reflected by the reflective polarizing plate.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 7, 2023
    Assignee: Asahi Kasel Kabushiki Kaisha
    Inventors: Hiroyuki Sasaki, Masaru Sugiyama
  • Publication number: 20220190327
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, an alkaline storage battery using this hydrogen storage alloy, and a vehicle; wherein a fine-grained hydrogen storage alloy is used for an alkaline storage battery that has a crystal structure of an A2B7-type structure as a main phase and is represented by a general formula: (La1-aSma)1-bMgbNicAldCre (where suffixes a, b, c, d, and e meet the following conditions: 0?a?0.35, 0.15?b?0.30, 0.02?d?0.10, 0?e?0.10, 3.20?c+d+e?3.50, and 0<a+e), and an alkaline storage battery using this hydrogen storage alloy for a negative electrode. A vehicle also includes this alkaline storage battery as an electricity supply source for a motor.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 16, 2022
    Applicants: JAPAN METALS AND CHEMICALS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takao SAWA, Saki NOTOYAMA, Tomoki SOUMA, Katsuyuki KUDO, Takuya WATANABE, Masato HOZUMI, Motoyoshi OKUMURA, Masashi KODAMA, Takuro KIKUCHI, Takeo OKANISHI, Atsushi MINAGATA, Shuhei MOCHIDA, Hiroyuki SASAKI, Satoshi KONO
  • Patent number: 11350012
    Abstract: A scanner may register one or more profile information to a memory, in a case where an operation for selecting specific profile information from among the one or more profile information registered to the memory is performed, send a first authentication request including first authentication information included in the specific profile information to the server, in a case where an authentication by the first authentication information fails in response to sending the first authentication request to the server, display an authentication information input screen, in a case where second authentication information is inputted in the authentication information input screen, send a second authentication request including the second authentication information to the server, and in a case where an authentication by the second authentication information is successful in response to sending the second authentication request to the server, send scan data to the server.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: May 31, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroyuki Sasaki
  • Patent number: 11201354
    Abstract: An electrolytic solution contains: an electrolyte including a lithium salt represented by general formula (1) below; an organic solvent including a linear carbonate represented by general formula (2) below; and an unsaturated cyclic carbonate, wherein the linear carbonate is contained at a mole ratio of 3 to 6 relative to the lithium salt, and/or the lithium salt is contained at a concentration of 1.1 to 3.8 mol/L.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: December 14, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Hiroyuki Sasaki, Tomoyuki Kawai, Yoshihiro Nakagaki, Ryota Okamoto, Kensuke Yotsumoto, Atsushi Minagata, Yuki Sugimoto, Yuuhi Sato
  • Patent number: 11174274
    Abstract: Provided are a novel naphthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high resistance such as light resistance and heat resistance, and exhibits excellent solubility in an organic solvent or a resin, a heat ray shielding material, and uses of the naphthalocyanine compound such as a heat ray shielding material and the like. The naphthalocyanine compound is represented by General Formula (1).
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 16, 2021
    Assignee: YAMAMOTO CHEMICALS, INC.
    Inventors: Kenichi Kato, Akihiro Kohsaka, Hiroyuki Sasaki
  • Patent number: 11015061
    Abstract: Provided are a novel phthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high durability, and exhibits excellent solubility in an organic solvent or a resin, a process for producing the phthalocyanine compound, an intermediate, and uses thereof. The phthalocyanine compound is represented by General Formula (1), In which in Formula (1), R represents an alkyl group or an aryl group, X represents a hydrogen atom, a halogen atom, or an alkyl group, X's can form an aromatic ring by being bonded to each other, M represents two hydrogen atoms, a divalent metal, or a derivative of a trivalent or tetravalent metal, and n represents an integer of 3 to 6.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 25, 2021
    Assignee: YAMAMOTO CHEMICALS, INC.
    Inventors: Akihiro Kohsaka, Hiroyuki Sasaki, Yojiro Kumagae
  • Publication number: 20210107924
    Abstract: Provided are a novel naphthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high resistance such as light resistance and heat resistance, and exhibits excellent solubility in an organic solvent or a resin, a heat ray shielding material, and uses of the naphthalocyanine compound such as a heat ray shielding material and the like. The naphthalocyanine compound is represented by General Formula (1).
    Type: Application
    Filed: April 6, 2018
    Publication date: April 15, 2021
    Applicant: YAMAMOTO CHEMICALS, INC.
    Inventors: Kenichi KATO, Akihiro KOHSAKA, Hiroyuki SASAKI
  • Patent number: 10978034
    Abstract: A musical sound generation device including a blowing pressure sensor which detects a blowing pressure, a key switch which specifies a sound pitch of a musical sound, a first sound source which outputs a first signal corresponding to an exhalation sound, a second sound source which outputs a second signal corresponding to the musical sound having the sound pitch specified by the key switch, and a processor which starts output of the first signal by the first sound source on basis of an operation performed on the key switch, starts output of the second signal by the second sound source on basis of the blowing pressure, and controls a sound volume when the exhalation sound resulting from the first signal is emitted and a sound volume when the musical sound resulting from the second signal is emitted, on basis of the blowing pressure.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 13, 2021
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Hiroyuki Sasaki