Patents by Inventor Yasushi Kawaguchi

Yasushi Kawaguchi 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: 20230137306
    Abstract: The present invention relates to an inhibitory agent of membrane fusion between a virus envelope and a cell membrane of a host cell for the virus, wherein the inhibitory agent comprises a serine protease inhibitor, and a therapeutic agent or a therapeutic composition, comprising the inhibitory agent. More specifically, the present invention relates to the inhibitory agent, wherein the serine protease inhibitor is one or more of a compound represented by the following general formula (I) or a salt thereof, or a solvate or hydrate thereof, and a therapeutic agent or a therapeutic composition, comprising the inhibitory agent: wherein R1 represents a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted lower alkenyl group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted aromatic heterocyclic group, each of which may optionally comprise a heteroatom.
    Type: Application
    Filed: March 12, 2021
    Publication date: May 4, 2023
    Applicant: The University of Tokyo
    Inventors: Jun-ichiro INOUE, Yasushi KAWAGUCHI, Jin GOHDA, Mizuki YAMAMOTO, Yasuyuki SETO, Kent DOI, Kyoji MORIYA, Kohei MIYAZONO, Yoshihiro KAWAOKA, Maki KISO
  • Patent number: 11479582
    Abstract: Anti-SARS-CoV-2 fusion peptides are provided. The anti-SARS-CoV-2 fusion peptides include peptide sequences corresponding to the sequence of the SARS-CoV-2 fusion complex heptad repeat domain HR2 and having at least one artificial mutation. The anti-SARS-CoV-2 fusion peptides may be 39-mers, such as peptides #121 (SEQ ID NO: 2) and #125 (SEQ ID NO: 5). These peptides may competitively bind to SARS-CoV-2 and prevent either membrane mediated SARS-CoV-2 fusion, endocytosis-mediated viral entry, or both. The anti-SARS-CoV-2 fusion peptides may be administered to a subject in need thereof to inhibit or prevent SARS-CoV-2 cellular entry.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: October 25, 2022
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Mahmoud Kandeel Elsayed, Mizuki Yamamoto, Jin Gohda, Jun-Ichiro Inoue, Yasushi Kawaguchi, Hyung-Joo Kwon, Abdulla Al-Taher
  • Publication number: 20220119456
    Abstract: Anti-SARS-CoV-2 fusion peptides are provided. The anti-SARS-CoV-2 fusion peptides include peptide sequences corresponding to the sequence of the SARS-CoV-2 fusion complex heptad repeat domain HR2 and having at least one artificial mutation. The anti-SARS-CoV-2 fusion peptides may be 39-mers, such as peptides #121 (SEQ ID NO: 2) and #125 (SEQ ID NO: 5). These peptides may competitively bind to SARS-CoV-2 and prevent either membrane mediated SARS-CoV-2 fusion, endocytosis-mediated viral entry, or both. The anti-SARS-CoV-2 fusion peptides may be administered to a subject in need thereof to inhibit or prevent SARS-CoV-2 cellular entry.
    Type: Application
    Filed: August 24, 2021
    Publication date: April 21, 2022
    Inventors: MAHMOUD KANDEEL ELSAYED, MIZUKI YAMAMOTO, JIN GOHDA, JUN-ICHIRO INOUE, YASUSHI KAWAGUCHI, HYUNG-JOO KWON, ABDULLA AL-TAHER
  • Patent number: 9551693
    Abstract: A photoacoustic wave measurement device includes: (a) a pulsed-light outputter that outputs a pulsed light; (b) an arrangement member disposed between a pulsed-light output end of the pulsed-light outputter and a measurement object, the arrangement member being adapted to allow the pulsed light to pass therethrough; and (c) a photoacoustic wave detector that receives a photoacoustic wave generated by the measurement object by the pulsed light and that converts the photoacoustic wave into an electric signal, the photoacoustic wave measurement device being adapted to receive the electric signal from a photoacoustic wave sensor in which the photoacoustic wave detector is farther from the measurement object than the pulsed-light output end.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: January 24, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Taiichiro Ida, Yasushi Kawaguchi
  • Publication number: 20150047433
    Abstract: A photoacoustic wave measurement device includes: (a) a pulsed-light outputter that outputs a pulsed light; (b) an arrangement member disposed between a pulsed-light output end of the pulsed-light outputter and a measurement object, the arrangement member being adapted to allow the pulsed light to pass therethrough; and (c) a photoacoustic wave detector that receives a photoacoustic wave generated by the measurement object by the pulsed light and that converts the photoacoustic wave into an electric signal, the photoacoustic wave measurement device being adapted to receive the electric signal from a photoacoustic wave sensor in which the photoacoustic wave detector is farther from the measurement object than the pulsed-light output end.
    Type: Application
    Filed: May 2, 2013
    Publication date: February 19, 2015
    Inventors: Taiichiro Ida, Yasushi Kawaguchi
  • Publication number: 20150038813
    Abstract: A photoacoustic diagnosis device that diagnoses a state of a skin of a human body, includes a pulsed light source, an electric signal converter, a blood distribution obtaining section, and a diagnosis section. The pulsed light source generates a pulsed light. The electric signal converter receives a photoacoustic wave generated at the skin by the pulsed light and converts the photoacoustic wave into an electric signal. The blood distribution obtaining section obtains distribution of blood in the skin based on the electric signal. The diagnosis section diagnoses a state of the skin based on a result obtained by the blood distribution obtaining section.
    Type: Application
    Filed: May 2, 2013
    Publication date: February 5, 2015
    Inventors: Yasushi Kawaguchi, Taiichiro Ida
  • Publication number: 20140227281
    Abstract: The present disclosure provides methods for the prevention or treatment of herpes virus infections. The pharmaceutical composition contains a substance inhibiting the binding of glycoprotein B to a non-muscle myosin heavy chain IIA or IIB.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Yasushi Kawaguchi, Jun Arii, Hisashi Arase
  • Publication number: 20130115589
    Abstract: An object of the present invention is to find a protein expressed in a variety of cells and functioning as a receptor for herpesvirus and provide a preventive or remedy for herpesvirus infections capable of inhibiting binding of the receptor to herpesvirus and thereby preventing entry of the virus to cells. The present invention provides a pharmaceutical composition for preventing or treating herpesvirus infections, which composition contains a substance inhibiting the binding of glycoprotein B to a non-muscle myosin heavy chain IIA or a non-muscle myosin heavy chain.
    Type: Application
    Filed: March 25, 2011
    Publication date: May 9, 2013
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Yasushi Kawaguchi, Jun Arii, Hisashi Arase
  • Patent number: 8289040
    Abstract: A wafer unit for testing is electrically connected to a plurality of chips to be tested formed on a wafer to be tested, the wafer unit for testing including: a connecting wafer provided to face the wafer to be tested, and to be electrically connected to each of the plurality of chips to be tested; and a temperature distribution adjusting section provided on the connecting wafer, and to adjust a temperature distribution of the wafer to be tested.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: October 16, 2012
    Assignee: Advantest Corporation
    Inventors: Yoshio Komoto, Yoshiharu Umemura, Shinichi Hamaguchi, Yasushi Kawaguchi
  • Publication number: 20120003742
    Abstract: To provide a method for producing a recombinant virus retaining the characteristics of the genome of a target virus. The method for producing a recombinant virus including inserting a foreign gene into a region between polyA signals of two genes encoded in directions opposing one another in the genome of a target virus.
    Type: Application
    Filed: May 29, 2009
    Publication date: January 5, 2012
    Applicant: The University of Tokyo
    Inventors: Yasushi Kawaguchi, Tomomi Morimoto
  • Publication number: 20110095777
    Abstract: A wafer unit for testing is electrically connected to a plurality of chips to be tested formed on a wafer to be tested, the wafer unit for testing including: a connecting wafer provided to face the wafer to be tested, and to be electrically connected to each of the plurality of chips to be tested; and a temperature distribution adjusting section provided on the connecting wafer, and to adjust a temperature distribution of the wafer to be tested.
    Type: Application
    Filed: November 16, 2010
    Publication date: April 28, 2011
    Applicant: ADVANTEST CORPORATION
    Inventors: Yoshio KOMOTO, Yoshiharu UMEMURA, Shinichi HAMAGUCHI, Yasushi KAWAGUCHI
  • Publication number: 20100129347
    Abstract: Disclosed are: an inhibitor of herpesvirus infection; a method for the inhibition of herpesvirus infection; and a typical utilization method thereof. The inhibitor of herpesvirus infection comprises an active ingredient which can bind to glycoprotein B or a receptor for glycoprotein B and can inhibit the interaction between glycoprotein B and a receptor for glycoprotein B.
    Type: Application
    Filed: December 27, 2007
    Publication date: May 27, 2010
    Applicant: Osaka University
    Inventors: Hisashi Arase, Takeshi Satoh, Yasushi Kawaguchi
  • Patent number: 7022676
    Abstract: A peptide Met-Lys-Pro, which is obtained by chemical synthesis ot hydrolysis of casein, is used as the active ingredient of angiotensin converting enzyme inhibitors or hypotensive drugs.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: April 4, 2006
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Yoshitaka Tamura, Hiroshi Miyakawa, Akio Yamada, Hitoshi Saito, Yasushi Kawaguchi, Hiroshi Ochi, Tomoko Ide, Eri Inoue
  • Publication number: 20050148504
    Abstract: This invention relates to a cysteine protease inhibitor comprising casein which is a protein derived from milk, a partial peptide of casein, and/or hydrolysate of casein as an active ingredient. The cysteine protease inhibitor of the present invention can be used as preventive or therapeutic drug for osteoporosis, malignant hypercalcemia, breast cancer, prostate cancer, periodontitis or bacterial and viral infectious diseases, and food, drink, feed and the like.
    Type: Application
    Filed: November 10, 2003
    Publication date: July 7, 2005
    Inventors: Nobuhiko Katunuma, Akio Yamada, Yasushi Kawaguchi, Natsuko Takakura
  • Patent number: 6908633
    Abstract: A protein hydrolysate comprising at least two types of peptides, characterized in that the rate of hydrolysis of protein is from 30 to 45%, the number average molecular weight is 300 or less, and the ratio of a weight average molecular weight to the number average molecular weight is greater than 1 and 2 or less, has excellent emulsifiability, and antigenicity thereof is low enough to be used for people who has predisposition to allergic diseases. This protein hydrolysate is obtained by hydrolysis of a protein starting material to a rate of hydrolysis in the range of 30 to 45%, and then bringing it into contact simultaneously or separately with two types of porous synthetic adsorbent respectively having an average pore radius of 2 to 8 nm and an average pore radius of 20 to 30 nm, the total surface area of the two porous synthetic adsorbents being in a range of 300 to 3000 m2 per 1 g (protein equivalent) of the obtained protein hydrolysate, and recovering the non-adsorbed component.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: June 21, 2005
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Hirotoshi Hayasawa, Yoshitaka Tamura, Hiroshi Miyakawa, Toshikazu Shichino, Yasushi Kawaguchi, Hirokatsu Kanehara
  • Publication number: 20050026830
    Abstract: The present invention provides medicaments, and methods for their use, that produce a non-physiologically high level of HGF at the site of a fibrosis plaque. The high level of HGF is unexpectedly found to inhibit procollagen production by abnormal fibroblasts responsible for formation of the fibrosis plaque. The present invention also provides methods for identifying individuals susceptible to fibrosis.
    Type: Application
    Filed: May 13, 2004
    Publication date: February 3, 2005
    Inventor: Yasushi Kawaguchi
  • Publication number: 20050004041
    Abstract: A peptide Met-Lys-Pro, which is obtained by chemical synthesis ot hydrolysis of casein, is used as the active ingredient of angiotensin converting enzyme inhibitors or hypotensive drugs.
    Type: Application
    Filed: November 21, 2002
    Publication date: January 6, 2005
    Inventors: Yoshitaka Tamura, Hiroshi Miyakawa, Akio Yamada, Hitoshi Saito, Yasushi Kawaguchi, Hiroshi Ochi, Tomoko Ide, Eri Inoue
  • Publication number: 20030072863
    Abstract: A protein hydrolysate comprising at least two types of peptides, characterized in that the rate of hydrolysis of protein is from 30 to 45%, the number average molecular weight is 300 or less, and the ratio of a weight average molecular weight to the number average molecular weight is greater than 1 and 2 or less, has excellent emulsifiability, and antigenicity thereof is low enough to be used for people who has predisposition to allergic diseases. This protein hydrolysate is obtained by hydrolysis of a protein starting material to a rate of hydrolysis in the range of 30 to 45%, and then bringing it into contact simultaneously or separately with two types of porous synthetic adsorbent respectively having an average pore radius of 2 to 8 nm and an average pore radius of 20 to 30 nm, the total surface area of the two porous synthetic adsorbents being in a range of 300 to 3000 m2 per 1 g (protein equivalent) of the obtained protein hydrolysate, and recovering the non-adsorbed component.
    Type: Application
    Filed: May 29, 2002
    Publication date: April 17, 2003
    Inventors: Hirotoshi Hayasawa, Yoshitaka Tamura, Hiroshi Miyakawa, Toshikazu Shichino, Yasushi Kawaguchi, Hirokatsu Kanehara
  • Patent number: 6395508
    Abstract: A method for producing a peptide mixture from a starting protein by (1) adding at least one protease to an aqueous solution of at least one starting protein to hydrolyse the starting protein, (2) measuring the amount of a free amino acid selected from the group consisting of lysine, phenylalanine, leucine and arginine produced during the hydrolysis of the starting protein, (3) calculating the amount of the free amino acid with respect to the total amount of amino acid contained in the starting protein, and (4) terminating the hydrolysis when the calculated amount of the free amino acid with respect to the total amount of the amino acid contained in the starting protein falls within a predetermined range. The inventive method provides a starting protein hydrolysate of uniform and consistent quality.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: May 28, 2002
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Seiichi Shimamura, Yoshitaka Tamura, Hiroshi Miyakawa, Hitoshi Saito, Yasushi Kawaguchi, Naoko Isomura, Yoko Akazome, Hiroshi Ochi, Mihoko Kawamoto
  • Patent number: 5952193
    Abstract: A method for producing a peptide mixture from whey protein by (1) adding at least one protease to an aqueous solution of at least one whey protein to hydrolyze the whey protein, (2) measuring the amount of a free amino acid selected from the group consisting of lysine, phenylalanine, leucine and arginine produced during the hydrolysis of the whey protein, (3) calculating the amount of the free amino acid with respect to the total amount of the amino acid contained in the whey protein, and (4) terminating the hydrolysis when the calculated amount of the free amino acid with respect to the total amount of the amino acid contained in the whey protein falls within a predetermined range. The inventive method provides a whey protein hydrolysate of consistent quality.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: September 14, 1999
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Seiichi Shimamura, Yoshitaka Tamura, Hiroshi Miyakawa, Hitoshi Saito, Yasushi Kawaguchi, Naoko Isomura, Yoko Akazome, Hiroshi Ochi, Mihoko Kawamoto