Patents by Inventor Sadakazu Aiso

Sadakazu Aiso 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: 20210177268
    Abstract: An image processing apparatus includes a spectral image acquisition unit configured to acquire a spectral image that is an image generated using photoacoustic signals corresponding to a plurality of different wavelengths, based on photoacoustic waves generated by radiating lights with the plurality of different wavelengths to an object into which a contrast agent has been injected, a contrast agent information acquisition unit configured to acquire information about the contrast agent, a region determination unit configured to determine a region corresponding to the contrast agent in the spectral image on the basis of the information about the contrast agent, and a display control unit configured to display the spectral image such that the region corresponding to the contrast agent is distinguishable from a region other than the region corresponding to the contrast agent.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 17, 2021
    Inventors: Shoya Sasaki, Kenichi Nagae, Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso
  • Publication number: 20210177269
    Abstract: An aspect provides an image processing apparatus processing three-dimensional image data generated based on a photoacoustic wave generated from inside of a subject.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 17, 2021
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Kenichi Nagae
  • Publication number: 20210169397
    Abstract: An image processing apparatus includes a data acquisition unit configured to acquire, in time series, first image data that have been generated based on acoustic waves generated by irradiating a subject, into which a contrast agent has been injected, with light a plurality of times and that correspond respectively to the plurality of times of light irradiation; and an image generation unit configured to generate second image data indicating a region corresponding to the contrast agent in the plurality of first image data on the basis of the plurality of the first image data acquired in time series.
    Type: Application
    Filed: February 19, 2021
    Publication date: June 10, 2021
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Moemi Urano, Kenichi Nagae, Kazuhito Oka
  • Publication number: 20200060551
    Abstract: A system includes an image acquiring unit configured to acquire a first image generated by imaging fluorescence that is generated by emitting excitation light onto a subject into which a fluorescent contrast agent has been introduced; and a photoacoustic measuring unit configured to implement photoacoustic measurement by receiving a photoacoustic wave generated in response to light emission onto the subject, wherein the photoacoustic measuring unit is further configured to control the photoacoustic measurement on the basis of the first image.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 27, 2020
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Moemi Urano, Kenichi Nagae, Kazuhito Oka
  • Patent number: 8252543
    Abstract: The present invention provides a method for detecting or diagnosing in vitro Alzheimer's disease, or memory and/or cognitive disorders, using a human biological sample and the inactivation of STAT3 protein as an indication, and a method for screening for a therapeutic drug for Alzheimer's disease or memory and/or cognitive disorders, using the activation of STAT3 protein as an indication.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: August 28, 2012
    Assignees: Tomohiro Chiba, Marina Yamada, Kenzo Terashita, Tomo Nishimoto, Sadakazu Aiso, Masaaki Matsuoka
    Inventors: Tomohiro Chiba, Marina Yamada, Kenzo Terashita, Sadakazu Aiso, Masaaki Matsuoka
  • Patent number: 8252540
    Abstract: It is intended to provide a drug delivery system toward a demyelinating lesion. It is also intended to provide a biochemical marker of a demyelinating lesion. A delivery system for a prophylactic and/or therapeutic agent for a demyelinating disease characterized in that a substance capable of specifically recognizing Contactin is conjugated to an active ingredient of a prophylactic and/or therapeutic agent for a demyelinating disease is provided. Also provided is a method of evaluating and/or differentiating a demyelinating disease, including measuring the expression of Contactin in a body fluid.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: August 28, 2012
    Assignee: Keio University
    Inventors: Jin Nakahara, Sadakazu Aiso, Norihiro Suzuki
  • Patent number: 8173771
    Abstract: One aspect of the present invention is directed to search receptors based on the information of HN signaling pathways in order to find Humanin receptor or Humanin-like polypeptide receptor (HNR), and to reveal a mechanism of promoting or suppressing the intracellular signal transduction for neuroprotecting activity of HN and identify a compound involved in the mechanism. The aspect of the invention is directed to a method for screening of HNR agonist and HNR antagonist, to utilize the screened compound in development of a drug for the treatment of neurodegenerative disease, and to provide an assay system of AD neuronal cell death, and to provide methods for the compulsory expression of HNR gene or knocking-out of intracellular genes.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: May 8, 2012
    Assignee: Keio Univeristy
    Inventors: Masaaki Matsuoka, Ikuo Nishimoto, Tomo Nishimoto, legal representative, Sadakazu Aiso
  • Patent number: 8076449
    Abstract: The present invention relates to a pharmaceutical composition for the treatment and/or prevention of a neurodegenerative disease, comprising the following polypeptide shown in any of (a) to (c): (a) a polypeptide comprising the amino acid sequence represented by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1); (b) a polypeptide comprising an amino acid sequence having a deletion, substitution, insertion, and/or addition of one or several amino acids in the amino acid sequence consisting of Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1), and having an activity that inhibits neuronal cell death associated with neurodegenerative disease; and (c) a modified polypeptide from the polypeptide (a) or (b), or a pharmaceutically acceptable salt thereof, as an effective ingredient.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: December 13, 2011
    Assignees: Tomohiro Chiba, Massaaki Matsuoka, Kenzo Terashita, Sadakazu Also, Tomo Nishimoto
    Inventors: Tomohiro Chiba, Yoshiko Kita, Masaaki Matsuoka, Kenzo Terashita, Sadakazu Aiso, Ikuo Nishimoto, Tomo Nishimoto, legal representative
  • Publication number: 20110250214
    Abstract: It is intended to provide a drug delivery system toward a demyelinating lesion. It is also intended to provide a biochemical marker of a demyelinating lesion. A delivery system for a prophylactic and/or therapeutic agent for a demyelinating disease characterized in that a substance capable of specifically recognizing Contactin is conjugated to an active ingredient of a prophylactic and/or therapeutic agent for a demyelinating disease is provided. Also provided is a method of evaluating and/or differentiating a demyelinating disease, including measuring the expression of Contactin in a body fluid.
    Type: Application
    Filed: August 1, 2008
    Publication date: October 13, 2011
    Applicant: Keio University
    Inventors: Jin Nakahara, Sadakazu Aiso, Norihiro Suzuki
  • Patent number: 7901678
    Abstract: The present invention provides pharmaceutical compositions composing, as an active ingredient, a substance capable of activating the ? chain of Fc receptors (FcR?) (provided that the substance is not an immunoglobulin for intravenous injection), and agents for stimulating myelinogenesis. The invention also provides agents for stimulating the differentiation of oligodendroglial precursor cells, agents for activating Fyn tyrosine kinase, and agents for stimulating the expression of myelin basic protein, all comprising a substance capable of activating FcR? as an active ingredient. Further, the invention provides a method of detecting myelinogenetic oligodendroglias or precursor cells thereof which comprises using the expression of FcR? in oligodendroglias or precursor cells thereof as an indicator.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 8, 2011
    Assignee: Keio University
    Inventors: Jin Nakahara, Hiroaki Asou, Sadakazu Aiso
  • Publication number: 20100279942
    Abstract: An object of the present invention is to provide an agent effective for the treatment and/or prevention of motor neuron disease such as amyotrophic lateral sclerosis (ALS). The present invention provides a therapeutic and/or preventive agent for motor neuron disease comprising the following oligopeptide shown in any of (a) to (c) or a pharmaceutically acceptable salt thereof as an active ingredient: (a) an oligopeptide consisting of the amino acid sequence represented by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala (SEQ ID NO: 1); (b) an oligopeptide consisting of an amino acid sequence having a deletion, substitution, insertion, or addition of one or several amino acids in Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala (SEQ ID NO: 1), and having an activity that inhibits neuronal cell death caused by a mutant superoxide dismutase-1 gene; and (c) a modified oligopeptide from the oligopeptide (a) or (b).
    Type: Application
    Filed: April 7, 2010
    Publication date: November 4, 2010
    Inventors: TOMOHIRO CHIBA, YOSHIKO KITA, MASAAKI MATSUOKA, KENZO TERASHITA, SADAKAZU AISO, IKUO NISHIMOTO, TOMO NISHIMOTO
  • Publication number: 20100223684
    Abstract: One aspect of the present invention is directed to search receptors based on the information of HN signaling pathways in order to find Humanin receptor or Humanin-like polypeptide receptor (HNR), and to reveal a mechanism of promoting or suppressing the intracellular signal transduction for neuroprotecting activity of HN and identify a compound involved in the mechanism. The aspect of the invention is directed to a method for screening of HNR agonist and HNR antagonist, to utilize the screened compound in development of a drug for the treatment of neurodegenerative disease, and to provide an assay system of AD neuronal cell death, and to provide methods for the compulsory expression of HNR gene or knocking-out of intracellular genes.
    Type: Application
    Filed: April 10, 2006
    Publication date: September 2, 2010
    Applicants: Japan Science and Technology Agency, KEIO University
    Inventors: Masaaki Matsuoka, Ikuo Nishimoto, Sadakazu Aiso
  • Publication number: 20090075900
    Abstract: An object of the present invention is to provide an agent effective for the treatment and/or prevention of motor neuron disease such as amyotrophic lateral sclerosis (ALS). The present invention provides a therapeutic and/or preventive agent for motor neuron disease comprising the following oligopeptide shown in any of (a) to (c) or a pharmaceutically acceptable salt thereof as an active ingredient: (a) an oligopeptide consisting of the amino acid sequence represented by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala (SEQ ID NO: 1); (b) an oligopeptide consisting of an amino acid sequence having a deletion, substitution, insertion, or addition of one or several amino acids in Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala (SEQ ID NO: 1), and having an activity that inhibits neuronal cell death caused by a mutant superoxide dismutase-1 gene; and (c) a modified oligopeptide from the oligopeptide (a) or (b).
    Type: Application
    Filed: December 8, 2004
    Publication date: March 19, 2009
    Applicants: Sadakazu, NOEVIR CO., LTD.
    Inventors: Sadakazu Aiso, Masaaki Matsuoka, Tomohiro Chiba, Yoshiko Kita, Kenzo Terashita
  • Publication number: 20080227699
    Abstract: The present invention relates to a pharmaceutical composition for the treatment and/or prevention of a neurodegenerative disease, comprising the following polypeptide shown in any of (a) to (c): (a) a polypeptide comprising the amino acid sequence represented by Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1); (b) a polypeptide comprising an amino acid sequence having a deletion, substitution, insertion, and/or addition of one or several amino acids in the amino acid sequence consisting of Ser-Ala-Leu-Leu-Arg-Ser-Ile-Pro-Ala-Pro-Ala-Gly-Ala-Ser-Arg-Leu-Leu-Leu-Leu-Thr-Gly-Glu-Ile-Asp-Leu-Pro (SEQ ID NO: 1), and having an activity that inhibits neuronal cell death associated with neurodegenerative disease; and (c) a modified polypeptide from the polypeptide (a) or (b), or a pharmaceutically acceptable salt thereof, as an effective ingredient.
    Type: Application
    Filed: April 8, 2005
    Publication date: September 18, 2008
    Inventors: Tomohiro Chiba, Yoshiko Kita, Masaaki Matsuoka, Kenzo Terashita, Sadakazu Aiso, Ikuo Nishimoto, Tomo Nishimoto
  • Publication number: 20080102055
    Abstract: The present invention provides a method for detecting or diagnosing in vitro Alzheimer's disease, or memory and/or cognitive disorders, using a human biological sample and the inactivation of STAT3 protein as an indication, and a method for screening for a therapeutic drug for Alzheimer's disease or memory and/or cognitive disorders, using the activation of STAT3 protein as an indication.
    Type: Application
    Filed: August 31, 2007
    Publication date: May 1, 2008
    Applicants: Tomohiro CHIBA, Marina YAMADA, Kenzo TERASHITA, Tomo NISHIMOTO, Sadakazu AISO, Masaaki MATSUOKA
    Inventors: Tomohiro Chiba, Marina Yamada, Kenzo Terashita, Sadakazu Aiso, Masaaki Matsuoka
  • Publication number: 20070178083
    Abstract: The present invention provides pharmaceutical compositions composing, as an active ingredient, a substance capable of activating the ? chain of Fc receptors (FcR?) (provided that the substance is not an immunoglobulin for intravenous injection), and agents for stimulating myelinogenesis. The invention also provides agents for stimulating the differentiation of oligodendroglial precursor cells, agents for activating Fyn tyrosine kinase, and agents for stimulating the expression of myelin basic protein, all comprising a substance capable of activating FcR? as an active ingredient. Further, the invention provides a method of detecting myelinogenetic oligodendroglias or precursor cells thereof which comprises using the expression of FcR? in oligodendroglias or precursor cells thereof as an indicator.
    Type: Application
    Filed: June 13, 2006
    Publication date: August 2, 2007
    Applicant: KEIO UNIVERSITY
    Inventors: Jin Nakahara, Hiroaki Asou, Sadakazu Aiso
  • Publication number: 20070087343
    Abstract: In an animal embryo or tissue, the following wholeamount treatment is carried out so that gene expression is detected. First, a sample such as an embryo or a tissue is fixed and then pretreated by acetylating an amine with acetic anhydride and eliminating lipids by using xylene. Next, in situ RT-PCR is performed with the use of a dNTP/analog mixture in an mRNA Selective PCR Kit™ (manufactured by TAKARA) and dig-dUTP™ (manufactured by Roche), under modification conditions at 85° C. As a result, genomic DNA is not amplified but DNA originating in mRNA—is specifically amplified and labeled. Finally, the thus amplified DNA is detected by using digoxigenin as an indication. Thus, it is possible to provide a method of detecting gene expression whereby three-dimensional results can be obtained in an animal embryo or tissue at a high detection sensitivity by simple procedures and a kit and an apparatus to be used therein.
    Type: Application
    Filed: May 9, 2003
    Publication date: April 19, 2007
    Applicant: KEIO UNIVERSITY
    Inventors: Motoyuki Ogawa, Yoshiki Hiraoka, Masanori Hasegawa, Sadakazu Aiso
  • Publication number: 20050175998
    Abstract: The present invention provides pharmaceutical compositions comprising, as an active ingredient, a substance capable of activating the ? chain of Fc receptors (FcR?) (provided that the substance is not an immunoglobulin for intravenous injection), and agents for stimulating myelinogenesis. The invention also provides agents for stimulating the differentiation of oligodendroglial precursor cells, agents for activating Fyn tyrosine kinase, and agents for stimulating the expression of myelin basic protein, all comprising a substance capable of activating FcR? as an active ingredient. Further, the invention provides a method of detecting myelinogenetic oligodenroglias or precursor cells thereof which comprises using the expression of FcR? in oligodendroglias or precursor cells thereof as an indicator.
    Type: Application
    Filed: July 22, 2002
    Publication date: August 11, 2005
    Inventors: Jin Nakahara, Hiroaki Asou, Sadakazu Aiso