Patents by Inventor Hiromu Miyazawa

Hiromu Miyazawa 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: 20240226819
    Abstract: A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second layer is smaller than an average thickness of the first layer, and the second layer satisfies 0.56<?2, where an activity coefficient of nitrogen in the second layer, calculated by the COSMO-RS method, is ?2N2, an activity coefficient of carbon dioxide in the second layer is ?2CO2, and a separation performance parameter of the second layer at 25° C. is ?2=ln(?2N2)?ln(?2CO2).
    Type: Application
    Filed: October 19, 2023
    Publication date: July 11, 2024
    Inventors: Yuta HORIUCHI, Hiromu MIYAZAWA, Yasutaka MATSUMOTO, Oshi IWAKAMI
  • Publication number: 20240226812
    Abstract: A gas separation membrane includes a first layer and a second layer that is provided at the surface on one side of the first layer and that includes a compound having gas separation ability. The average thickness of the second layer is smaller than an average thickness of the first layer. The second layer is an inkjet coating. The compound preferably includes a structure derived from PET, POM, PLA, PDMS, cellulose, or a coupling agent.
    Type: Application
    Filed: October 16, 2023
    Publication date: July 11, 2024
    Inventors: Yuta HORIUCHI, Hiromu MIYAZAWA, Yasutaka MATSUMOTO, Oshi IWAKAMI, Naoki TAKATSU
  • Publication number: 20240140104
    Abstract: An ink jet printing method includes an ejection step of ejecting an ink jet ink composition containing a sublimation dye from a recording head so as to be adhered to an intermediate transfer medium A; and a transfer step of transferring the sublimation dye adhered to the intermediate transfer medium A by sublimation to a cloth B. In the ink jet printing method described above, an affinity parameter Ln (gamma) at 25° C. calculated by a COSMO-RS method between the sublimation dye and a member of a surface of the cloth B to which the sublimation transfer is performed is 5 or less.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Inventors: Ryota MIYASA, Takayoshi KAGATA, Toshiaki OGUCHI, Hiromu MIYAZAWA
  • Publication number: 20240131478
    Abstract: A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second layer is smaller than an average thickness of the first layer, and the second layer satisfies 0.56<?2, where an activity coefficient of nitrogen in the second layer, calculated by the COSMO-RS method, is ?2N2, an activity coefficient of carbon dioxide in the second layer is ?2CO2, and a separation performance parameter of the second layer at 25° C. is ?2=ln(?2N2)?ln(?2CO2).
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Inventors: Yuta HORIUCHI, Hiromu MIYAZAWA, Yasutaka MATSUMOTO, Oshi IWAKAMI
  • Publication number: 20240131474
    Abstract: A gas separation membrane includes a first layer and a second layer that is provided at the surface on one side of the first layer and that includes a compound having gas separation ability. The average thickness of the second layer is smaller than an average thickness of the first layer. The second layer is an inkjet coating. The compound preferably includes a structure derived from PET, POM, PLA, PDMS, cellulose, or a coupling agent.
    Type: Application
    Filed: October 15, 2023
    Publication date: April 25, 2024
    Inventors: Yuta HORIUCHI, Hiromu MIYAZAWA, Yasutaka MATSUMOTO, Oshi IWAKAMI, Naoki TAKATSU
  • Publication number: 20240066858
    Abstract: A calibration method includes acquiring medium information; specifying a type of medium by collating medium information with structure data; executing a first simulation of ejecting liquid by changing at least one of physical property conditions at least once for a structure model corresponding to a specified type of the medium; ejecting the liquid onto the medium; acquiring permeation information of the liquid ejected to the medium; estimating a physical property condition of the liquid by collating the permeation information with results of the first simulation; executing a second simulation of ejecting the liquid by changing at least one of ejection conditions at least once based on the estimated physical property condition; and displaying a plurality of virtual print results, which are virtual print results when printing is performed on the medium based on each of the ejection conditions, based on results of the second simulation.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 29, 2024
    Inventors: Naoki TAKATSU, Hiromu MIYAZAWA, Satoru MASAI, Oshi IWAKAMI
  • Patent number: 11731421
    Abstract: In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: August 22, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Hiromu Miyazawa, Kinya Ozawa, Jiro Kato
  • Publication number: 20230249469
    Abstract: A liquid ejecting head includes a nozzle that is in communication with a pressure chamber and ejects a first liquid, a passage formation substrate that has a liquid passage which extends from a common liquid chamber in communication with a plurality of pressure chambers to the nozzle and through which the first liquid flows, and a circulation passage that is formed in the passage formation substrate, passes near the nozzle, and is not in communication with the liquid passage, and through which a second liquid circulates.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 10, 2023
    Inventors: Hiromu MIYAZAWA, Kinya OZAWA
  • Patent number: 11565523
    Abstract: A liquid ejecting apparatus is provided comprising: a liquid ejecting head; and a controller. The liquid ejecting head including: a nozzle from which a liquid is ejected; a first communication passage that is in communication with the first nozzle; a first pressure compartment; a first drive element that changes a pressure of the first pressure compartment; a first passage that connects the first pressure compartment and the first communication passage; a second pressure compartment; a second drive element that changes a pressure of the second pressure compartment; a second passage that connects the second pressure compartment and the first communication passage.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 31, 2023
    Inventors: Hiromu Miyazawa, Toshihiro Shimizu
  • Publication number: 20230026583
    Abstract: A soft magnetic alloy ribbon is made of a Fe-based soft magnetic alloy and includes a first laser peening trace row and a second laser peening trace row each of which includes a plurality of laser peening traces in a row in a first direction and which are arranged adjacent to each other in a second direction intersecting the first direction, and a domain wall extending in a third direction, in which D0<D1 where a straight line at an equal separation distance from the first laser peening trace row and the second laser peening trace row is defined as a central line, a straight line which has a first distance where a distance from the first laser peening trace row is shorter than the separation distance is defined as a first reference line, a width of the domain wall at a position intersecting the central line is defined as D0, and a width of the domain wall at a position intersecting the first reference line is defined as D1.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 26, 2023
    Inventors: Hiromu MIYAZAWA, Kinya OZAWA
  • Publication number: 20230022220
    Abstract: A soft magnetic alloy ribbon is a ribbon made of a Fe-based soft magnetic alloy and includes a first laser peening trace row and a second laser peening trace row each of which includes a plurality of laser peening traces in a row in a first direction and which are arranged adjacent to each other in a second direction intersecting the first direction, in which ?0<?1 where a straight line at an equal separation distance from the first laser peening trace row and the second laser peening trace row is defined as a central line, a circle which is located around a center of the laser peening traces constituting the first laser peening trace row and which has a first radius shorter than the separation distance is defined as a first reference circle, a straight line which passes through the center and is parallel to the second direction is defined as a reference line, an in-plane stress at an intersection of the reference line and the central line is defined as ?0, and an in-plane stress on a circumference of the
    Type: Application
    Filed: July 18, 2022
    Publication date: January 26, 2023
    Inventors: Hiromu MIYAZAWA, Kinya OZAWA
  • Patent number: 11535034
    Abstract: A piezoelectric element including a piezoelectric layer having a perovskite structure including lead, zirconium, and titanium, and an electrode provided on the piezoelectric layer is provided. In the piezoelectric layer, in a range of 50 nm or smaller from an interface between the piezoelectric layer and the electrode in a thickness direction, a ratio c/a of a lattice spacing a in a direction perpendicular to the thickness direction and a lattice spacing c in the thickness direction satisfies 0.986?c/a?1.014.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 27, 2022
    Inventors: Koichi Morozumi, Hiromu Miyazawa, Hiroshi Kato, Hiroshi Ito
  • Patent number: 11529126
    Abstract: An ultrasonic device includes: a substrate provided with a first opening and a second opening; a support film that is provided on the substrate and blocks the first opening and the second opening; a transmitting piezoelectric film that is provided on the support film at a position which overlaps the first opening when viewed in a thickness direction of the substrate and is interposed between a pair of electrodes in the thickness direction of the substrate; and a receiving piezoelectric film that is provided on the support film at a position which overlaps the second opening when viewed in the thickness direction of the substrate and is interposed between a pair of electrodes in the thickness direction of the substrate. In the thickness direction of the substrate, a thickness dimension of the transmitting piezoelectric film is smaller than a thickness dimension of the receiving piezoelectric film.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: December 20, 2022
    Inventors: Hiromu Miyazawa, Hiroshi Ito, Tomoaki Nakamura, Masayoshi Yamada, Kanechika Kiyose, Tsukasa Funasaka
  • Publication number: 20220332108
    Abstract: In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
    Type: Application
    Filed: July 6, 2022
    Publication date: October 20, 2022
    Inventors: Hiromu MIYAZAWA, Kinya OZAWA, Jiro KATO
  • Patent number: 11458728
    Abstract: In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: October 4, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiromu Miyazawa, Kinya Ozawa, Jiro Kato
  • Patent number: 11437565
    Abstract: A piezoelectric element including an electrode and a piezoelectric layer provided on the electrode and having a perovskite structure including lead, zirconium, and titanium is provided. A radial distribution function obtained from an extended X-ray absorption fine structure of an L3 absorption edge of lead in an X-ray absorption spectrum of the piezoelectric layer at an interface with the electrode satisfies a formula (1) below A/B?1??(1) (in the formula (1), A represents an intensity of a peak attributable to oxygen atoms closest to lead atoms; and B represents an intensity of a peak attributable to oxygen atoms second closest to the lead atoms).
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 6, 2022
    Inventors: Masayuki Omoto, Ichiro Asaoka, Hiromu Miyazawa
  • Patent number: 11419579
    Abstract: An ultrasonic sensor includes a vibration plate, a first electrode, a piezoelectric body, and a second electrode. The first electrode is laminated on the vibration plate, that has a length along a surface of the vibration plate in a first direction, and that has a width Wbe along the surface of the vibration plate in a second direction that is orthogonal to the first direction. The width Wbe is not more than the length. The piezoelectric body is laminated on the first electrode and has a width Wpz in the second direction. The second electrode is laminated on the piezoelectric body. A ratio Wbe/Wpz between the width Wbe of the first electrode and the width Wpz of the piezoelectric body is not less than 0.1 and not more than 0.8.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 23, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Masayoshi Yamada, Hiroshi Matsuda, Tomoaki Nakamura, Hiroshi Ito, Hiromu Miyazawa
  • Publication number: 20210394513
    Abstract: A liquid ejecting apparatus is provided comprising: a liquid ejecting head; and a controller. The liquid ejecting head including: a nozzle from which a liquid is ejected; a first communication passage that is in communication with the first nozzle; a first pressure compartment; a first drive element that changes a pressure of the first pressure compartment; a first passage that connects the first pressure compartment and the first communication passage; a second pressure compartment; a second drive element that changes a pressure of the second pressure compartment; a second passage that connects the second pressure compartment and the first communication passage.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Hiromu MIYAZAWA, Toshihiro SHIMIZU
  • Patent number: 11148419
    Abstract: A liquid ejecting apparatus is provided comprising: a liquid ejecting head; and a controller. The liquid ejecting head including: a nozzle from which a liquid is ejected; a first communication passage that is in communication with the first nozzle; a first pressure compartment; a first drive element that changes a pressure of the first pressure compartment; a first passage that connects the first pressure compartment and the first communication passage; a second pressure compartment; a second drive element that changes a pressure of the second pressure compartment; a second passage that connects the second pressure compartment and the first communication passage.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 19, 2021
    Inventors: Hiromu Miyazawa, Toshihiro Shimizu
  • Publication number: 20210094292
    Abstract: In a method of controlling a liquid ejecting apparatus, where the liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle that ejects a liquid, a drive element that changes a pressure of the liquid in the pressure chamber, and a drive circuit that supplies the drive element with an ejection pulse that generates a change in the pressure that ejects the liquid from the nozzle, the method includes specifying a viscosity of the liquid in the nozzle and a surface tension of the liquid in the nozzle from a residual vibration when the pressure of the liquid in the pressure chamber is changed, and controlling a waveform of the ejection pulse according to the viscosity and the surface tension.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 1, 2021
    Inventors: Hiromu MIYAZAWA, Kinya OZAWA, Jiro KATO