Patents by Inventor Isao Matsubara

Isao Matsubara 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: 20230173212
    Abstract: A tracheal connector is connected to a respiratory gas generator and a tracheal tube. The tracheal connector includes a tracheal connector body connected to the tracheal tube, a connector tube connected to the tracheal connector body and the respiratory gas generator, and a restriction mechanism configured to narrow a respiratory gas flow path configured to allow the respiratory gas to flow therein. The tracheal connector body includes a tracheal port connected to the tracheal tube, an exhaust port facing the tracheal port and configured to discharge at least expired air of the subject, and a respiratory port connected to the connector tube. The restriction mechanism is provided on the respiratory gas flow path between the respiratory port and the tracheal port.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 8, 2023
    Applicants: OSAKA UNIVERSITY, NIHON KOHDEN CORPORATION
    Inventors: Takeshi YOSHIDA, Shigeo WADA, Naoki TAKEISHI, Satoshi YASUMURA, Isao MATSUBARA
  • Patent number: 11504025
    Abstract: To provide a mask capable of reducing a load of a patient while suppressing lowering of accuracy at which a subject's exhaled air is measured. A mask to be put on a subject's face includes a mask body portion demarcating an internal space in a state of covering part of the subject's face and a cup-shaped nasal cup covering a subject's nose in a state of being arranged inside the internal space, in which the nasal cup includes a first wall portion covering the subject's nose, a second wall portion arranged under the subject's nostrils, and an exhaled air discharge portion guiding an exhaled air from the subject's nose to an exhaled air sensor, and at least part of the exhaled air from the subject's nose is guided toward the exhaled air discharge portion by the second guide portion in a state where the nasal cup covers the subject's nose.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: November 22, 2022
    Assignee: Nihon Kohden Corporation
    Inventors: Yuya Baba, Isao Matsubara, Masayuki Inoue, Kenichiro Kabumoto, Fumihiko Takatori
  • Patent number: 11497415
    Abstract: A mask size gauge for selecting a size of a mask in accordance with a distance in a height direction between an upper reference part in an upper portion of a face of a wearer, and a lower reference part in a lower portion, includes: a reference position indicating portion indicating that the reference position indicating portion is to be placed at a height position of the upper reference part on an outer lateral side of an eye of the wearer; and a size indicating portion that is located at a position which is closer to a middle of the face than the reference position indicating portion, and that indicates the size of the mask according to a height position of the lower reference part.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: November 15, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Risa Osawa, Raku Ishida, Masayuki Suzukawa, Yuya Baba, Masayuki Inoue, Isao Matsubara
  • Patent number: 11471633
    Abstract: A mask includes: a mask body configured to define a space that covers at least one of a nose and a mouth of a subject; and a cushion member extending along a peripheral edge portion of the mask body. The cushion member includes: a first region that includes a portion that contacts a face of the subject when fitted; and a second region positioned between the first region and the mask body. A surface of the first region has a higher non-adhesive property than a surface of the second region, and the second region has transparency that allows the space to be seen through.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 18, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Yuya Baba, Isao Matsubara
  • Publication number: 20220288339
    Abstract: A mask is provided with a mask body part configured to cover a face of a subject, and a cushion member fixed to the mask body part and contacts the face of the subject. The mask body part has an inner side face at least a portion of which faces the face of the subject, an outer side face positioned on an opposite side to the inner side face, and a plurality of protrusion portions provided on the outer side face. The cushion member has a plurality of engagement portions each of which is engaged with a corresponding one of the plurality of protrusion portions.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 15, 2022
    Inventors: Yuya BABA, Takayuki AOYAGI, Isao MATSUBARA
  • Publication number: 20210196917
    Abstract: A fixing device in which the direction of a tube can be easily fine-adjusted is provided. A fixing device has: an arm portion which extends in the X direction; a fixation portion which is to fix a tube; and a rotation portion which is disposed between the arm portion and the fixation portion, and which rotates the fixation portion about the X direction.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 1, 2021
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Hiroaki YAHAGI, Isao MATSUBARA, Satoru WATANABE
  • Publication number: 20200375498
    Abstract: A mask size gauge for selecting a size of a mask in accordance with a distance in a height direction between an upper reference part in an upper portion of a face of a wearer, and a lower reference part in a lower portion, includes: a reference position indicating portion indicating that the reference position indicating portion is to be placed at a height position of the upper reference part on an outer lateral side of an eye of the wearer; and a size indicating portion that is located at a position which is closer to a middle of the face than the reference position indicating portion, and that indicates the size of the mask according to a height position of the lower reference part.
    Type: Application
    Filed: May 15, 2020
    Publication date: December 3, 2020
    Inventors: Risa OSAWA, Raku ISHIDA, Masayuki SUZUKAWA, Yuya BABA, Masayuki INOUE, Isao MATSUBARA
  • Publication number: 20200101248
    Abstract: A mask includes: a mask body configured to define a space that covers at least one of a nose and a mouth of a subject; and a cushion member extending along a peripheral edge portion of the mask body. The cushion member includes: a first region that includes a portion that contacts a face of the subject when fitted; and a second region positioned between the first region and the mask body. A surface of the first region has a higher non-adhesive property than a surface of the second region, and the second region has transparency that allows the space to be seen through.
    Type: Application
    Filed: September 9, 2019
    Publication date: April 2, 2020
    Inventors: Yuya BABA, Isao MATSUBARA
  • Publication number: 20180228400
    Abstract: To provide a mask capable of reducing a load of a patient while suppressing lowering of accuracy at which a subject's exhaled air is measured. A mask to be put on a subject's face includes a mask body portion demarcating an internal space in a state of covering part of the subject's face and a cup-shaped nasal cup covering a subject's nose in a state of being arranged inside the internal space, in which the nasal cup includes a first wall portion covering the subject's nose, a second wall portion arranged under the subject's nostrils, and an exhaled air discharge portion guiding an exhaled air from the subject's nose to an exhaled air sensor, and at least part of the exhaled air from the subject's nose is guided toward the exhaled air discharge portion by the second guide portion in a state where the nasal cup covers the subject's nose.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Inventors: Yuya Baba, Isao Matsubara, Masayuki Inoue, Kenichiro Kabumoto, Fumihiko Takatori
  • Patent number: 10012953
    Abstract: An apparatus for, and method of, image reconstruction. The method includes first breaking a holographic image into a plurality of interlaced sample sets corresponding to color separation images; and independently sampling, filtering, and reconstructing all sets. The resulting demodulated images contain no fringes. Notably, range-clipped tonal rendering curves are used to choose pixel regions of the demodulated images that will replace saturated regions. The image is reconstructed by integrating all un-saturated images into one.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: July 3, 2018
    Assignees: Canon Kabushiki Kaisha, THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: William J Dallas, Chung-Chieh Yu, Isao Matsubara
  • Publication number: 20170199495
    Abstract: An image capturing apparatus (500) capable of performing three-dimensional tomography of an object by digital holography, includes a splitting element (502) which splits a light beam emitted from a light source into an object light beam and a reference light beam, an illumination system (503) which controls a plurality of object light beams that are generated from the object light beam and that move in directions different from each other to be incident on the object simultaneously, a composite element (507) which causes the plurality of object light beams to interfere with the reference light beam, an image sensor (508) which acquires hologram generated by interference of each of the plurality of light beams with the reference light beam, and a controller (509) which controls the illumination system so that the plurality of object light beams interfere with each other on the image sensor.
    Type: Application
    Filed: December 27, 2016
    Publication date: July 13, 2017
    Inventors: Isao Matsubara, Akira Eguchi
  • Patent number: 9417222
    Abstract: A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: August 16, 2016
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Isao Matsubara, Yutaka Uchiyama
  • Patent number: 9360423
    Abstract: An optical system for a holographic microscope includes: a light source configured to emit a light beam; a grating configured to split the light beam into a reference beam and an object beam; a lens unit configured to irradiate a sample by the reference and object beams split by the grating; a spatial filter including a first region for the reference beam and a second region for the object beam; and a detector configured to detect an interference pattern caused by the reference and object beams.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 7, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chung-Chieh Yu, Isao Matsubara, Yasuyuki Unno
  • Patent number: 9176054
    Abstract: The present invention provides an apparatus for tomographic imaging of an object. The apparatus includes a light unit configured to generate illumination, which comprises coherent light and has random phase distribution in a plane perpendicular to an optical axis, for illuminating an object, a coupler which combines a reference beam and an object beam for an interference, a shifter configured to shift relative phase difference between the object light and the reference coherent light, a detector configured to detect an interference caused by the reference coherent light and object light for the each phase, and a processor configured to calculate an optical propagation based on the detected interference for the each phase.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: November 3, 2015
    Assignees: Canon Kabushiki Kaisha, THE ARIZONA BOARD OF REGENTS
    Inventors: Isao Matsubara, Chung-Chieh Yu, William Dallas
  • Patent number: 9116303
    Abstract: The present invention provides a hologram which forms a light intensity distribution on a predetermined plane by using incident light. The hologram includes a plurality of cells configured to control both a phase of a first polarized light component in a first polarization direction of the incident light and a phase of a second polarized light component in a second polarization direction perpendicular to the first polarization direction, to form a phase difference distribution between phase distributions for the first and second polarized light components. The plurality of cells are designed so that a number of phase difference levels of the phase difference distribution is less than a number of phase levels of the phase distribution of the first polarized light component.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: August 25, 2015
    Assignees: CANON KABUSHIKI KAISHA, ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Isao Matsubara, Yasuyuki Unno, William Dallas, Tom D Milster
  • Patent number: 8896840
    Abstract: An interferometric method for detecting information about a sample includes emitting a laser beam; splitting the laser beam into a reference beam and an object beam; transmitting the object beam through the sample in an incident angle; combining the reference beam with the object beam passed through the sample to form an interference pattern; detecting the interference pattern, and non-linearly scanning the object beam in order to detect a plurality of interference patterns.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Matsubara, Chung-Chieh Yu, Yasuyuki Unno, William Dallas
  • Publication number: 20140247130
    Abstract: A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.
    Type: Application
    Filed: May 8, 2014
    Publication date: September 4, 2014
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Isao Matsubara, Yutaka Uchiyama
  • Patent number: 8823533
    Abstract: A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: September 2, 2014
    Assignee: Nihon Kohden Corporation
    Inventors: Isao Matsubara, Yutaka Uchiyama
  • Patent number: 8791827
    Abstract: A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: July 29, 2014
    Assignee: Nihon Kohden Corporation
    Inventors: Isao Matsubara, Yutaka Uchiyama
  • Patent number: 8687253
    Abstract: A method and apparatus for reducing speckle noise in an image of an object are disclosed. The method includes, placing the object in an interferometer at a first position along a beam path of an object beam, irradiating the object with the object beam, moving the object from the first position to a second position by longitudinally shifting the object along the beam path of the object beam, irradiating the object with the object beam at the second position. At each of the first and second positions a holographic image formed by interference between the object beam and a reference beam is recorded. An object image with reduced speckle noise is obtained by averaging the holographic images. Either an arithmetic mean or a weighted average may be used in the averaging of the holographic images.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chung-Chieh Yu, Isao Matsubara, Mamoru Miyawaki