Patents by Inventor Shigeki Masuda

Shigeki Masuda 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).

  • Patent number: 10885665
    Abstract: Detection and analysis of a tangible component in a sample are implemented at lower cost. Provided is an analysis apparatus including a flow cell which includes a flow path for a sample, a branch section configured to cause light having passed through the flow path to branch at least to a first optical path and a second optical path, a first imaging section and a second imaging section configured to capture images of the sample in the flow path by using the light in the first optical path and the light in the second optical path, and a controller configured to process the captured images. The first imaging section and the second imaging section capture images that have the same angle of view but have different characteristics.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 5, 2021
    Assignee: ARKRAY, Inc.
    Inventors: Shigeki Masuda, Yukio Watanabe
  • Patent number: 10852223
    Abstract: A flow cell has: a flow path in which a specimen fluid and a sheath fluid flow; a specimen flow path that introduces the specimen fluid into the flow path; a first sheath flow path and a second sheath flow path that introduce the sheath fluid into the flow path; and a merging portion at which the specimen flow path, the first sheath flow path and the second sheath flow path merge together. The specimen flow path is provided on a central flow line of the flow path. At the merging portion, the first sheath flow path and the second sheath flow path face directions intersecting the central flow line of the flow path, and are disposed at positions that are offset in a depth direction of the flow path.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 1, 2020
    Assignee: ARKRAY, Inc.
    Inventor: Shigeki Masuda
  • Publication number: 20200319089
    Abstract: A fluid delivery method for delivering a liquid sample to a flow cell including a taper section including a first and a second inner walls opposing the first inner wall, which is inclined to the second inner wall so that a distance between the first and the second inner walls at a downstream side of the taper section is shorter than a distance at an upstream side of the taper section, and including measurement flow path provided downstream of the taper section, through which a liquid sample flows together with a sheath fluid. The fluid delivery method includes sample introduction of delivering the liquid sample into the taper section along the second inner wall until the liquid sample reaches the measurement flow path, and sample pressing by delivering the sheath fluid into the taper section along the first inner wall after the liquid sample reaches the measurement flow path.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 8, 2020
    Applicant: ARKRAY, Inc.
    Inventors: Shinichi OTA, Shigeki MASUDA, Shinya NAKAJIMA
  • Patent number: 10798287
    Abstract: An analysis apparatus comprises a flow cell which has a flow passage for a liquid containing a tangible component; an image pickupper which picks up images of the liquid flowing through the flow passage; an adjuster which adjusts a relative position of the flow cell with respect to the image pickupper in relation to an optical axis direction of the image pickupper and a direction in which the liquid flows through the flow passage; and a controller which determines an image pickup position of the flow cell in at least one of the optical axis direction and the direction in which the liquid flows, on the basis of a number of pieces of the tangible component in focusing states existing in the images of the liquid picked up by the image pickupper at a plurality of positions at which the relative position differs.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 6, 2020
    Assignee: ARKRAY, Inc.
    Inventors: Shigeki Masuda, Kenji Nakanishi
  • Patent number: 10656069
    Abstract: A flow cell including a flow channel through which a sample fluid and a sheath fluid flow, a sample flow channel that introduces the sample fluid into the flow channel, and at least one sheath flow channel that introduces the sheath fluid into the flow channel. The flow channel includes a flow merging section where the sample flow channel and the sheath flow channel merge, a flattened section that is disposed downstream of the flow merging section, that is formed in line with one wall face of wall faces facing across the flow merging section, and that is shallower in depth than the flow merging section, and a tapered section that connects the flow merging section with the flattened section and that gradually decreases in depth on progression downstream.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 19, 2020
    Assignee: ARKRAY, Inc.
    Inventor: Shigeki Masuda
  • Patent number: 10437036
    Abstract: A plurality of images of a sample are simultaneously captured at different focal lengths by a plurality of cameras. An analysis apparatus includes: a branch section configured to cause light passing through the sample containing a material component to branch off into a plurality of optical paths; a plurality of imaging devices for simultaneously capturing images of the sample in a flow path at different focal points by using the light caused to branch off into the plurality of optical paths; and a controller configured to process the captured images.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 8, 2019
    Assignee: ARKRAY, Inc.
    Inventors: Shinya Nakajima, Shigeki Masuda, Kenji Nakanishi, Yukio Watanabe
  • Patent number: 10410774
    Abstract: Provided are a composite material having direct current superposition characteristics, low iron loss, and high strength, a magnetic core for a magnetic component and a reactor, the magnetic core and the reactor including the composite material, a converter including the reactor, and a power conversion device including the converter. A composite material includes a soft magnetic powder, a filler, and a resin portion enclosing the soft magnetic powder and the filler dispersed therein, wherein the filler has rubber and an outer circumferential layer that covers a surface of the rubber and that contains an organic substance, and the resin portion contains a thermoplastic resin.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: September 10, 2019
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazushi Kusawake, Atsushi Sato, Shigeki Masuda
  • Patent number: 10325706
    Abstract: Provided are a composite material having low iron loss, high saturation magnetization, and high strength, and a magnetic component and a reactor that include the composite material. A composite material contains a soft magnetic powder and a resin having the soft magnetic powder dispersed therein, the soft magnetic powder including a coarse powder having an average particle size D1 of not less than 50 ?m nor more than 500 ?m and a fine powder having an average particle size D2 of not less than 0.1 ?m but less than 30 wherein the soft magnetic powder is contained in an amount of not less than 60 vol % nor more than 80 vol % with respect to the composite material as a whole.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 18, 2019
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazushi Kusawake, Shigeki Masuda, Atsushi Sato
  • Publication number: 20190101742
    Abstract: A plurality of images of a sample are simultaneously captured at different focal lengths by a plurality of cameras. An analysis apparatus includes: a branch section configured to cause light passing through the sample containing a material component to branch off into a plurality of optical paths; a plurality of imaging devices for simultaneously capturing images of the sample in a flow path at different focal points by using the light caused to branch off into the plurality of optical paths; and a controller configured to process the captured images.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Applicant: ARKRAY, Inc.
    Inventors: Shinya NAKAJIMA, Shigeki MASUDA, Kenji NAKANISHI, Yukio WATANABE
  • Publication number: 20190051011
    Abstract: Detection and analysis of a tangible component in a sample are implemented at lower cost. Provided is an analysis apparatus including a flow cell which includes a flow path for a sample, a branch section configured to cause light having passed through the flow path to branch at least to a first optical path and a second optical path, a first imaging section and a second imaging section configured to capture images of the sample in the flow path by using the light in the first optical path and the light in the second optical path, and a controller configured to process the captured images. The first imaging section and the second imaging section capture images that have the same angle of view but have different characteristics.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 14, 2019
    Applicant: ARKRAY, Inc.
    Inventors: Shigeki MASUDA, Yukio WATANABE
  • Publication number: 20190020825
    Abstract: An analysis apparatus comprises a flow cell which has a flow passage for a liquid containing a tangible component; an image pickupper which picks up images of the liquid flowing through the flow passage; an adjuster which adjusts a relative position of the flow cell with respect to the image pickupper in relation to an optical axis direction of the image pickupper and a direction in which the liquid flows through the flow passage; and a controller which determines an image pickup position of the flow cell in at least one of the optical axis direction and the direction in which the liquid flows, on the basis of a number of pieces of the tangible component in focusing states existing in the images of the liquid picked up by the image pickupper at a plurality of positions at which the relative position differs.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 17, 2019
    Applicant: ARKRAY, Inc.
    Inventors: Shigeki MASUDA, Kenji NAKANISHI
  • Publication number: 20180372612
    Abstract: A flow cell including a flow channel through which a sample fluid and a sheath fluid flow, a sample flow channel that introduces the sample fluid into the flow channel, and at least one sheath flow channel that introduces the sheath fluid into the flow channel. The flow channel includes a flow merging section where the sample flow channel and the sheath flow channel merge, a flattened section that is disposed downstream of the flow merging section, that is formed in line with one wall face of wall faces facing across the flow merging section, and that is shallower in depth than the flow merging section, and a tapered section that connects the flow merging section with the flattened section and that gradually decreases in depth on progression downstream.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Shigeki MASUDA
  • Publication number: 20180202915
    Abstract: A flow cell has: a flow path in which a specimen fluid and a sheath fluid flow; a specimen flow path that introduces the specimen fluid into the flow path; a first sheath flow path and a second sheath flow path that introduce the sheath fluid into the flow path; and a merging portion at which the specimen flow path, the first sheath flow path and the second sheath flow path merge together. The specimen flow path is provided on a central flow line of the flow path. At the merging portion, the first sheath flow path and the second sheath flow path face directions intersecting the central flow line of the flow path, and are disposed at positions that are offset in a depth direction of the flow path.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 19, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Shigeki MASUDA
  • Publication number: 20170365387
    Abstract: Provided are a composite material having direct current superposition characteristics, low iron loss, and high strength, a magnetic core for a magnetic component and a reactor, the magnetic core and the reactor including the composite material, a converter including the reactor, and a power conversion device including the converter. A composite material includes a soft magnetic powder, a filler, and a resin portion enclosing the soft magnetic powder and the filler dispersed therein, wherein the filler has rubber and an outer circumferential layer that covers a surface of the rubber and that contains an organic substance, and the resin portion contains a thermoplastic resin.
    Type: Application
    Filed: January 26, 2016
    Publication date: December 21, 2017
    Inventors: Kazushi KUSAWAKE, Atsushi SATO, Shigeki MASUDA
  • Publication number: 20170263356
    Abstract: Provided are a composite material having low iron loss, high saturation magnetization, and high strength, and a magnetic component and a reactor that include the composite material. A composite material contains a soft magnetic powder and a resin having the soft magnetic powder dispersed therein, the soft magnetic powder including a coarse powder having an average particle size D1 of not less than 50 ?m nor more than 500 ?m and a fine powder having an average particle size D2 of not less than 0.1 ?m but less than 30 wherein the soft magnetic powder is contained in an amount of not less than 60 vol % nor more than 80 vol % with respect to the composite material as a whole.
    Type: Application
    Filed: August 28, 2015
    Publication date: September 14, 2017
    Applicants: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazushi Kusawake, Shigeki Masuda, Atsushi Sato
  • Patent number: 5854368
    Abstract: A polyester represented by the following general formula (I) and a copolymer which comprises two structural units represented by the following general formulae (I') and (II). ##STR1## and a coating material for use in large intestine-selective drug release pharmaceutical preparations, which contains the above polyester and/or copolymer. The polyester and copolymer of the present invention contain a saccharide residue which is hydrolyzed and/or assimilated specifically in the large intestine, drugs contained in solid oral pharmaceutical administration pharmaceutical preparations coated with the coating material of the present invention are not decomposed or absorbed by digestive organs other than the large intestine, but instead are released selectively and therefore in a high concentration in the large intestine.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: December 29, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koji Iritani, Tetsuya Kawasaki, Nobutaka Tani, Shigeki Masuda, Yoshiaki Yano
  • Patent number: 5644012
    Abstract: A polyester represented by the following general formula (I) and a copolymer which comprises two structural units represented by the following general formulae (I') and (II). ##STR1## and a coating material for use in large intestine-selective drug release pharmaceutical preparations, which contains the above polyester and/or copolymer. The polyester and copolymer of the present invention contain a saccharide residue which is hydrolyzed and/or assimilated specifically in the large intestine, drugs contained in solid oral pharmaceutical administration pharmaceutical preparations coated with the coating material of the present invention are not decomposed or absorbed by digestive organs other than the large intestine, but instead are released selectively and therefore in a high concentration in the large intestine.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: July 1, 1997
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koji Iritani, Tetsuya Kawasaki, Nobutaka Tani, Shigeki Masuda, Yoshiaki Yano
  • Patent number: 5576020
    Abstract: A polyester represented by the following general formula (I) and a copolymer which comprises two structural units represented by the following general formulae (I') and (II). ##STR1## and a coating material for use in large intestine-selective drug release pharmaceutical preparations, which contains the above polyester and/or copolymer. The polyester and copolymer of the present invention contain a saccharide residue which is hydrolyzed and/or assimilated specifically in the large intestine, drugs contained in solid oral pharmaceutical administration pharmaceutical preparations coated with the coating material of the present invention are not decomposed or absorbed by digestive organs other than the large intestine, but instead are released selectively and therefore in a high concentration in the large intestine.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: November 19, 1996
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Koji Iritani, Tetsuya Kawasaki, Nobutaka Tani, Shigeki Masuda, Yoshiaki Yano
  • Patent number: 5298246
    Abstract: The present invention is directed to a stable pharmaceutical composition wherein the absorbability of a lipophilic drug which is insoluble or practically insoluble in water or another drug such as a bioactive peptide in oral administration has been improved to such extent that a high level of blood concentration can be retained, and to a method for producing such a stable pharmaceutical composition. The pharmaceutical composition of the present invention offers improvements in the absorbability, for example, a high level of blood concentration can be retained for a long time in oral administration because it is highly resistant to lipase. Also, the pharmaceutical composition is highly safe because the emulsifier used is derived from mammalian milk.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: March 29, 1994
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Yano, Shigeki Masuda, Takayoshi Hidaka