Patents by Inventor Yoshiaki Murayama

Yoshiaki Murayama 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: 20220169036
    Abstract: A bold process is performed on the number of consecutive pixels to which colored ink is applied and a number of pixels (the number is an odd number of 1 or more). In this way, the application locations of the functional ink can be set with a resolution higher than that of the colored ink.
    Type: Application
    Filed: November 18, 2021
    Publication date: June 2, 2022
    Inventors: Yoshiaki Murayama, Atsuhiko Masuyama
  • Publication number: 20220016882
    Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Inventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
  • Patent number: 11209532
    Abstract: A signal processing device according to the present invention is a signal processing device that processes data of a detected ultrasound waveform representing a temporal change in the intensity of ultrasound generated at a measurement position in a specimen and includes: a comparison unit that compares a predetermined standard ultrasound waveform and the detected ultrasound waveform at the measurement position and that calculates a degree of similarity between the predetermined standard ultrasound waveform and the detected ultrasound waveform; and a discrimination unit for discriminating whether or not the measurement position corresponds to a predetermined examination subject on the basis of the degree of similarity.
    Type: Grant
    Filed: July 21, 2019
    Date of Patent: December 28, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Yoshiaki Murayama
  • Patent number: 11155078
    Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: October 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
  • Publication number: 20210252851
    Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles each configured to discharge ink and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. More specifically, the apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.
    Type: Application
    Filed: April 20, 2021
    Publication date: August 19, 2021
    Inventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
  • Patent number: 11072673
    Abstract: A methacrylic resin excellent in moldability, solvent resistance, mechanical properties and heat resistance is provided. A method for producing a methacrylic resin excellent in productivity is provided. A methacrylic resin having 99.1% by mass or more and 99.9% by mass or less of a repeating unit derived from methyl methacrylate, 0.1% by mass or more and 0.9% by mass or less of a repeating unit derived from alkyl acrylate, and a proportion of the molecular weight component of ? or less of the peak molecular weight Mph in the high molecular weight region side obtained from an elution curve by a gel permeation chromatography of the methacrylic resin is 7% or more and 40% or less.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: July 27, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takao Marutani, Masahiko Morooka, Hiroshi Nakanishi, Yoshiaki Murayama
  • Publication number: 20210208109
    Abstract: A photoacoustic imaging device includes an irradiator irradiating a specimen with excitation light, a detection unit detecting an acoustic wave at an irradiated position, a propagation body including a bag-shaped body including a film deforming in conformity with a surface shape of the specimen, an interior of the bag-shaped body being filled with an acoustic wave propagation medium, and a processor including hardware and configured to generate an image based on the detected acoustic wave, wherein the propagation body is disposed between the detection unit and the specimen, without interposing any air layers, and moves along with relative movement of the detection unit and the specimen, the detection unit includes an optics collecting the acoustic wave, the propagation body is attached to the optics, and a difference of refractive indexes between the optics and the propagation body is smaller than a difference of refractive indexes between the optics and air.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Yoshiaki MURAYAMA, Atsushi DOI, Kentaro IMOTO
  • Publication number: 20210204817
    Abstract: A photoacoustic imaging device includes an excitation light irradiation unit that irradiates the same position of a specimen with two or more beams of pulsed excitation light separated by an irradiation time interval, a detector that detects an acoustic wave generated at the position irradiated with the excitation light by the excitation light irradiation unit, a generator that generates an image of the specimen based on the detected acoustic wave, and a controller that controls the irradiation time interval, the acoustic wave generated with a single beam of pulsed excitation light has multiple positive peaks that periodically occur, and the controller controls the irradiation time interval into a timing at which a second positive peak of the acoustic wave generated with the preceding excitation light is superimposed on a first positive peak of the acoustic wave generated with the subsequent excitation light.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Yoshiaki MURAYAMA, Atsushi DOI, Kentaro IMOTO
  • Publication number: 20210178790
    Abstract: A printing apparatus includes a printhead having a plurality of chips, each including a plurality of nozzle arrays which are arranged in a predetermined nozzle array direction and each of which is formed from a plurality of nozzles and energy generation elements provided in correspondence with the nozzles of each nozzle array and each configured to generate energy used for discharging ink. The apparatus relatively moves the printhead and a print medium in a direction intersecting the nozzle array direction, reads a predetermined test pattern printed on the print medium by driving the printhead, analyzes the read test pattern, calculates a slant of the printhead with respect to a reference based on a result of the analysis, and corrects the calculated slant of the printhead by moving the printhead.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 17, 2021
    Inventors: Yoshiaki Murayama, Shigeyasu Nagoshi, Daisuke Ishii
  • Patent number: 11020959
    Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles, each configured to discharge ink, and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. The apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
  • Patent number: 11002708
    Abstract: A photoacoustic microscope objective lens unit includes: an objective lens which irradiates a sample with excitation light L; a photoacoustic wave detection unit which detects a photoacoustic wave U generated from the sample; and a photoacoustic wave guide system. The photoacoustic wave guide system includes: a photoacoustic wave separation member; and an acoustic lens that is disposed between the photoacoustic wave separation member and the sample and has a focus position that substantially matches with a focus position of the objective lens. The acoustic lens is obtained by cementing a main acoustic lens and a correction acoustic lens to each other. The main acoustic lens and the correction acoustic lens satisfy predetermined Conditional Expressions.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: May 11, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Ikutoshi Fukushima, Asuka Mukai, Yoshiaki Murayama
  • Patent number: 10960695
    Abstract: A printing apparatus includes a printhead having a plurality of chips each including a plurality of nozzle arrays which are arranged in a predetermined nozzle array direction and each of which is formed from a plurality of nozzles and energy generation elements provided in correspondence with the nozzles of each nozzle array and each configured to generate energy used for discharging ink. The apparatus relatively moves the printhead and a print medium in a direction intersecting the nozzle array direction, reads a predetermined test pattern printed on the print medium by driving the printhead, analyzes the read test pattern, calculates a slant of the printhead with respect to a reference based on a result of the analysis, and corrects the calculated slant of the printhead by moving the printhead.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Murayama, Shigeyasu Nagoshi, Daisuke Ishii
  • Patent number: 10755151
    Abstract: An inkjet printing apparatus obtains data of a second image by correcting, using shading data, signal values of pixels in an image of a read test pattern so that a signal value of a pixel lower than a value of the shading data becomes a value corresponding to a lowest luminance; specifies an area of a pattern of each of the plurality of inks in the image of the test pattern using the data of a first image and the data of the second image; and calculates a position deviation amount of a printhead based on a position of the pattern of the specified area.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: August 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Ishii, Yoshiaki Murayama, Shigeyasu Nagoshi, Takeshi Murase, Satoshi Tada, Kenji Kubozono
  • Patent number: 10656314
    Abstract: Provided is a shaped article having excellent jet blackness and also, by transmitting light with specific wavelength, can display a specific color. The shaped article is a shaped article for which the L* value of reflected light is 35 or less and the total light transmittance is 1% or less, wherein, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 380 nm or more to less than 680 nm, and the expressions T??0.1% and 0%?T??T?/2 are satisfied, or, in a wavelength range of 380 nm or more to 780 nm or less, the wavelength at which the maximum value of light transmittance is exhibited is in a range of 680 nm or more to 780 nm or less, and the expressions T??10% and 0%?T??T?/2 are satisfied.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 19, 2020
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tadayoshi Sawada, Yoshiaki Murayama
  • Patent number: 10563351
    Abstract: An apparatus reduces material left between a shredding unit and a defibrating unit. A sheet manufacturing apparatus including a shredder that separates feedstock containing at least fiber into shreds in air; a defibrating unit that defibrates at least the shreds in air; and a forming unit that forms a sheet using defibrated material defibrated by the defibrating unit; wherein the defibration capacity, which is the amount defibrated per unit time by the defibrating unit, is greater than or equal to the shredding capacity, which is the amount shredded per unit time by the shredder.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 18, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Murayama, Nobumasa Abe, Toshiaki Yamagami
  • Patent number: 10562330
    Abstract: A printing mode for performing printing to a printing medium and a determination mode for determining the application amount of a reaction liquid to a discharge medium can be performed. In the determination mode, a reaction liquid application unit forms a layer of the reaction liquid on the discharge medium, and then an ink application unit applies an ink onto a part of the layer to form a test pattern to be utilized for the determination. In the formation of the test pattern, an image to be formed by the ink by the aggregation of a solid content in the applied ink partially moves and shrinks on the layer of the reaction liquid to be thereby deformed with a grade according to the applied reaction liquid.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eisuke Nishitani, Masaki Nitta, Yoshiaki Murayama, Keiichirou Takeuchi, Rinako Kameshima
  • Publication number: 20200047492
    Abstract: A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Masahiko Umezawa, Kouichi Serizawa, Satoshi Kitai, Yoshiaki Murayama, Takeshi Murase
  • Publication number: 20200047491
    Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles each configured to discharge ink and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. More specifically, the apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Takeshi Murase, Yoshiaki Murayama, Satoshi Kitai, Masahiko Umezawa, Tomoki Kobayashi
  • Publication number: 20200050907
    Abstract: An inkjet printing apparatus obtains data of a second image by correcting, using shading data, signal values of pixels in an image of a read test pattern so that a signal value of a pixel lower than a value of the shading data becomes a value corresponding to a lowest luminance; specifies an area of a pattern of each of the plurality of inks in the image of the test pattern using the data of a first image and the data of the second image; and calculates a position deviation amount of a printhead based on a position of the pattern of the specified area.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 13, 2020
    Inventors: Daisuke Ishii, Yoshiaki Murayama, Shigeyasu Nagoshi, Takeshi Murase, Satoshi Tada, Kenji Kubozono
  • Publication number: 20200047530
    Abstract: According to an embodiment of the present invention, a printing apparatus includes a printhead having a plurality of chips each including a plurality of nozzle arrays which are arranged in a predetermined nozzle array direction and each of which is formed from a plurality of nozzles and energy generation elements provided in correspondence with the nozzles of each nozzle array and each configured to generate energy used for discharging ink The apparatus relatively moves the printhead and a print medium in a direction intersecting the nozzle array direction, reads a predetermined test pattern printed on the print medium by driving the printhead, analyzes the read test pattern, calculates a slant of the printhead with respect to a reference based on a result of the analysis, and corrects the calculated slant of the printhead by moving the printhead.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 13, 2020
    Inventors: Yoshiaki Murayama, Shigeyasu Nagoshi, Daisuke Ishii