Patents by Inventor Mamoru Hasegawa

Mamoru Hasegawa 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: 20240189125
    Abstract: Disclosed is a stent device including: a stent formed in a cylindrical shape by weaving a wire; and a cover formed by overlapping an inside cover disposed on an inside of the stent and an outside cover disposed on an outside of the stent, wherein the cover has a fixation portion at which the inside cover and the outside cover are fixed to each other, and an accommodation portion which is formed by the inside cover and the outside cover and accommodates the wire, and wherein the accommodation portion has a normal accommodation portion and an expanded accommodation portion that is wider than the normal accommodation portion in a radial direction.
    Type: Application
    Filed: February 26, 2024
    Publication date: June 13, 2024
    Inventors: Shun NOGUCHI, Yu Aoki, Yoshihiko Watanabe, Mamoru Hasegawa, Toru Wakabayashi
  • Publication number: 20220313461
    Abstract: Stent device has a stent cover bonding to the stent wires forming the stent body at a plurality of bonding portions that are remote from the cross over points of the stent wire. By allocating the bonding portions to the stent wires in between the cross over portions, the axial flexibility of the stent device is maintained. The stent cover bonded by the disclosed bonding portions contributes to preventing lumen tissues to penetrate into the stent body and clogging the stent while placement of the bonding portions bonding the stent cover to the stent device provides variations of positive effects to the cover stent device and to the patient in which the stent device is placed.
    Type: Application
    Filed: February 16, 2022
    Publication date: October 6, 2022
    Applicant: OLYMPUS CORPORATION
    Inventor: Mamoru HASEGAWA
  • Patent number: 11136594
    Abstract: An objective of the present invention is to provide vectors for conveniently and efficiently producing ES-like cells in which foreign genes are not integrated into the chromosome. The present inventors discovered methods for producing ES-like cells from somatic cells using chromosomally non-integrating viral vectors. Since no foreign gene is integrated into the chromosome of the produced ES-like cells, they are advantageous in tests and research, and immunological rejection and ethical problems can be avoided in disease treatments.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 5, 2021
    Assignee: ID PHARMA CO., LTD.
    Inventors: Noemi Fusaki, Hiroshi Ban, Mamoru Hasegawa, Yoshikazu Yonemitsu
  • Patent number: 10975358
    Abstract: The present invention provides methods for improving the efficiency of inducing pluripotent stem cells, as well as vectors and compositions for use therein. In the induction of pluripotent stem cells which contains the step of introducing a vector that contains the KLF gene, OCT gene, and SOX gene in this order, the efficiency of pluripotent stem cell induction was successfully increased significantly by further introducing a vector that contains the KLF gene but not the OCT gene and the SOX gene. The methods of the present invention have an excellent feature in that they allow efficient induction of pluripotent stem cells under a temperature condition closer to the physiological environment, and prompt vector removal after the pluripotent stem cell induction. The present invention enables more efficient induction of pluripotent stem cells.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 13, 2021
    Assignee: ID Pharma Co., Ltd.
    Inventors: Hiroshi Ban, Akihiro Iida, Mamoru Hasegawa
  • Patent number: 10525484
    Abstract: A decanter centrifuge that carries out solid-liquid separation by centrifugal force on an object to be processed that is fed into a rotating bowl and designed from a solid and a saturated solution wherein that solid is dissolved, and discharges solid phase components from a solid discharge opening and discharges liquid phase components from a solvent discharge opening thereof by rotationally operating a screw conveyor disposed within the rotating bowl, the decanter centrifuge being provided with a dilution solvent supply unit for supplying, during centrifuging of the object to be processed, dilution solvent that reduces the concentration of the saturated solution to a discharge path, which is a discharge path for saturated solution moving within the rotating bowl, and which is designed closer to the solvent discharge opening side-than a chamber for supplying the object to be processed.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: January 7, 2020
    Assignee: TOMOE ENGINEERING CO., LTD.
    Inventors: Katsuya Ando, Mamoru Hasegawa, Masahiro Ide
  • Patent number: 10502947
    Abstract: An optical fiber scanning apparatus is the optical fiber scanning apparatus for which an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion of a magnetic field generation unit, the magnetic field generation unit is provided with four coil units each including a flexible substrate where a planar coil, a lead-out wiring layer of the planar coil and an external connection electrode pad are disposed, and an inside of the four coil units arranged in a square prism shape configures the hollow portion.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 10, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Mamoru Hasegawa, Masanori Ogata, Hiroyoshi Yajima
  • Patent number: 10492667
    Abstract: In an optical fiber scanning apparatus, an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion where a magnetic field generation unit is disposed of a frame body, the frame body for which a cross section of the hollow portion is a square includes a first frame body for which planar coils are disposed respectively on a first surface and a second surface that are orthogonal to each other, and a second frame body for which planar coils are disposed respectively on a third surface and a fourth surface that are orthogonal to each other, and which is bonded with the first frame body, and the first surface to the fourth surface configure inner surfaces of the hollow portion.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 3, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuhisa Karaki, Mamoru Hasegawa, Hiroya Fukuyama
  • Publication number: 20190225986
    Abstract: The present inventors successfully introduced genes into stem cells of airway epithelial tissues using simian immunodeficiency virus vectors pseudotyped with F and HN, which are envelope glycoproteins of Sendai virus. Gene transfer into airway epithelial tissue stem cells using a vector of the present invention is useful for gene therapy of genetic respiratory diseases such as cystic fibrosis. Furthermore, it is possible to select respiratory organs such as the lungs as production tissues for providing proteins that are deficient due to genetic diseases.
    Type: Application
    Filed: November 30, 2018
    Publication date: July 25, 2019
    Inventors: Katsuyuki Mitomo, Makoto Inoue, Hitoshi Iwasaki, Mamoru Hasegawa, Eric W. Alton, Uta Griesenbach
  • Publication number: 20190194607
    Abstract: The problem is to produce functional liver cells usable in testing the metabolism and toxicity of a drug, from pluripotent stem cells. The solution includes a method for producing highly functional liver cells using pluripotent stem cells, comprising, from pluripotent stem cells, acquiring primitive endoderm derived from the pluripotent stem cells by a process involving steps (A) and (B), from the primitive endoderm, acquiring liver precursor cells by a process involving step (C), and, from the liver precursor cells, acquiring the highly functional liver cells by a process involving step (D): (A) culturing under serum-free and feeder-free conditions; (B) culturing in the presence of albumin and at least one kind of cytokine; (C) culturing in the presence of SHH or an SHH agonist and at least one kind of cytokine; and (D) culturing and maturing in the presence of at least one kind of cytokine.
    Type: Application
    Filed: January 30, 2012
    Publication date: June 27, 2019
    Applicants: DNAVEC CORPORATION, NATIONAL CENTER FOR GLOBAL HEALTH AND MEDICINE
    Inventors: Akira Yuo, Kumiko Saeki, Naoko Nakamura, Satoko Matsuyama, Miwako Nishio, Koichi Saeki, Mamoru Hasegawa
  • Patent number: 10017784
    Abstract: The present inventors successfully introduced genes into stem cells of airway epithelial tissues using simian immunodeficiency virus vectors pseudotyped with F and HN, which are envelope glycoproteins of Sendai virus. Gene transfer into airway epithelial tissue stem cells using a vector of the present invention is useful for gene therapy of genetic respiratory diseases such as cystic fibrosis. Furthermore, it is possible to select respiratory organs such as the lungs as production tissues for providing proteins that are deficient due to genetic diseases.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 10, 2018
    Assignee: ID PHARMA CO., LTD.
    Inventors: Katsuyuki Mitomo, Makoto Inoue, Hitoshi Iwasaki, Mamoru Hasegawa, Eric W. Alton, Uta Griesenbach
  • Patent number: 10016121
    Abstract: An ultrasound transducer element includes a plurality of electrostatic capacitance type ultrasound cells each having a lower electrode portion and a membrane including an upper electrode portion that are oriented and disposed via a cavity circular in plan view, and a thickness of the cavity monotonously decreases in a curved manner toward an outer circumferential portion from a center portion of the cavity.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 10, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuya Matsumoto, Kazuhisa Karaki, Mamoru Hasegawa, Katsuhiro Wakabayashi
  • Publication number: 20170232453
    Abstract: A decanter centrifuge that carries out solid-liquid separation by centrifugal force on an object to be processed that is fed into a rotating bowl and designed from a solid and a saturated solution wherein that solid is dissolved, and discharges solid phase components from a solid discharge opening and discharges liquid phase components from a solvent discharge opening thereof by rotationally operating a screw conveyor disposed within the rotating bowl, said decanter centrifuge being provided with a dilution solvent supply unit for supplying, during centrifuging of the object to be processed, dilution solvent that reduces the concentration of the saturated solution to a discharge path, which is a discharge path for saturated solution moving within the rotating bowl, and which is designed closer to the solvent discharge opening sideā€”than a chamber for supplying the object to be processed.
    Type: Application
    Filed: July 29, 2015
    Publication date: August 17, 2017
    Inventors: Katsuya ANDO, Mamoru HASEGAWA, Masahiro IDE
  • Patent number: 9695445
    Abstract: An objective of the present invention is to provide vectors for conveniently and efficiently producing ES-like cells in which foreign genes are not integrated into the chromosome. The present inventors discovered methods for producing ES-like cells from somatic cells using chromosomally non-integrating viral vectors. Since no foreign gene is integrated into the chromosome of the produced ES-like cells, they are advantageous in tests and research, and immunological rejection and ethical problems can be avoided in disease treatments.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 4, 2017
    Assignee: ID Pharma Co., Ltd.
    Inventors: Noemi Fusaki, Hiroshi Ban, Mamoru Hasegawa, Yoshikazu Yonemitsu
  • Patent number: 9636710
    Abstract: An ultrasound element includes a silicon substrate, a lower electrode layer that has a plurality of lower electrode sections, and a plurality of lower wiring sections, and is connected to a lower electrode terminal to which a drive signal and a bias signal are applied, a lower insulating layer, an upper insulating layer in which a plurality of cavities smaller than the respective lower electrode sections are formed, an upper electrode layer that has a plurality of upper electrode sections that are disposed to face the respective lower electrode sections via the respective cavities, and are smaller than the lower electrode sections and larger than the cavities, and a plurality of upper wiring sections, and is connected to an upper electrode terminal at a ground potential that detects a capacitance signal, and a protection layer.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: May 2, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuya Matsumoto, Kazuhisa Karaki, Mamoru Hasegawa, Katsuhiro Wakabayashi
  • Patent number: 9629609
    Abstract: A US element includes a silicon substrate, wherein a lower electrode layer that has a plurality of lower electrode sections, and a plurality of lower wiring sections, and is connected to a lower electrode terminal to which a drive signal and a bias signal are applied, a lower insulating layer, an upper insulating layer in which a plurality of cavities are formed, an upper electrode layer that has a plurality of upper electrode sections and a plurality of upper wiring sections, and is connected to an upper electrode terminal at a ground potential for detecting a capacitance signal, and a protection layer are sequentially stacked on the silicon substrate, and the US element further includes a shield electrode section that is formed at least at an upper side of the lower wiring sections, and is connected to a shield electrode terminal at a ground potential.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: April 25, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuya Matsumoto, Kazuhisa Karaki, Mamoru Hasegawa, Katsuhiro Wakabayashi
  • Publication number: 20170049304
    Abstract: In an optical fiber scanning apparatus, an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion where a magnetic field generation unit is disposed of a frame body, the frame body for which a cross section of the hollow portion is a square includes a first frame body for which planar coils are disposed respectively on a first surface and a second surface that are orthogonal to each other, and a second frame body for which planar coils are disposed respectively on a third surface and a fourth surface that are orthogonal to each other, and which is bonded with the first frame body, and the first surface to the fourth surface configure inner surfaces of the hollow portion.
    Type: Application
    Filed: November 2, 2016
    Publication date: February 23, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Kazuhisa KARAKI, Mamoru HASEGAWA, Hiroya FUKUYAMA
  • Publication number: 20170042410
    Abstract: An optical fiber scanning apparatus is the optical fiber scanning apparatus for which an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion of a magnetic field generation unit, the magnetic field generation unit is provided with four coil units each including a flexible substrate where a planar coil, a lead-out wiring layer of the planar coil and an external connection electrode pad are disposed, and an inside of the four coil units arranged in a square prism shape configures the hollow portion.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 16, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Mamoru HASEGAWA, Masanori OGATA, Hiroyoshi YAJIMA
  • Patent number: 9492485
    Abstract: Provided are a method of producing brown adipocytes from pluripotent stem cells, a method of producing cell aggregates as an intermediate product thereof, pluripotent stem cell-derived cell aggregates and pluripotent stem cell-derived brown adipocytes produced by these methods, and cell therapy using the pluripotent stem cell-derived brown adipocytes. In the method of producing brown adipocytes from pluripotent stem cells, cell aggregates are produced from pluripotent stem cells by a method including the step (A), and brown adipocytes are prepared from the cell aggregates by a method including the step (B). The step (A) is a step of producing cell aggregates by non-adhesive culture of pluripotent stem cells in serum-free environment in the presence of a hematopoietic cytokine, and the step (B) is a step of producing brown adipocytes by adhesion culture of the cell aggregates in the presence of a hematopoietic cytokine.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: November 15, 2016
    Assignees: ID Pharma Co., Ltd., National Center for Global Health and Medicine
    Inventors: Kumiko Saeki, Akira Yuo, Miwako Nishio, Masako Kawasaki, Koichi Saeki, Mamoru Hasegawa
  • Publication number: 20160281109
    Abstract: The present inventors successfully introduced genes into stem cells of airway epithelial tissues using simian immunodeficiency virus vectors pseudotyped with F and HN, which are envelope glycoproteins of Sendai virus. Gene transfer into airway epithelial tissue stem cells using a vector of the present invention is useful for gene therapy of genetic respiratory diseases such as cystic fibrosis. Furthermore, it is possible to select respiratory organs such as the lungs as production tissues for providing proteins that are deficient due to genetic diseases.
    Type: Application
    Filed: June 10, 2016
    Publication date: September 29, 2016
    Inventors: Katsuyuki Mitomo, Makoto Inoue, Hitoshi Iwasaki, Mamoru Hasegawa, Eric W. Alton, Uta Griesenbach
  • Patent number: 9447432
    Abstract: An object of the present invention is to provide methods for producing iPS cells with low invasivity and high efficiency. The iPS cells can be produced with high efficiency using a method comprising the steps of culturing mononuclear cells derived from peripheral blood for 3 to 14 days in the presence of anti-CD3 antibody, and subjecting the cultured mononuclear cells to dedifferentiation.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 20, 2016
    Assignees: Keio University, DNAVEC Corporation
    Inventors: Keiichi Fukuda, Shinsuke Yuasa, Tomohisa Seki, Mamoru Hasegawa