Patents by Inventor Tatsuhiro Ishida

Tatsuhiro Ishida 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: 11957701
    Abstract: An object of the present invention is to provide a new means for treating or ameliorating a blood cancer patient, wherein the new means has high effect and few side effects. The present invention relates to a combined medicine for use in a method for treating or ameliorating a blood cancer patient, comprising 4-amino-1-(2-cyano-2-deoxy-?-D-arabinofuranosyl)-2(1H)-pyrimidinone or a salt thereof and venetoclax or a salt thereof.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: April 16, 2024
    Assignee: Delta-Fly Pharma, Inc.
    Inventors: Tatsuhiro Ishida, Kiyoshi Eshima
  • Publication number: 20240108578
    Abstract: The present invention provides a composition comprising an ionic liquid and a poorly absorbable drug, wherein the ionic liquid is prepared from an anion and a cation, the anion is an organic acid having 3 to 7 carbon atoms, and the cation is selected from the group consisting of arginine, meglumine, trometamol and diethanolamine, which remarkably improves the absorbability of the poorly absorbable drug.
    Type: Application
    Filed: February 10, 2022
    Publication date: April 4, 2024
    Applicant: MEDRx Co., Ltd.
    Inventors: Tatsuhiro Ishida, Noboru Tatsumi, Takashi Nakae, Yasushi Miwa, Hidetoshi Hamamoto
  • Publication number: 20240024444
    Abstract: The present invention is to provide a combined preparation comprising a first preparation for transdermal administration comprising an antigenic peptide and an aliphatic carboxylic acid-based ionic liquid, and a second preparation for transdermal administration comprising an adjuvant and an aliphatic carboxylic acid-based ionic liquid, enhances the skin permeability of an antigenic peptide and an adjuvant and thus effectively enhances the effect of activating the immune response with the antigenic peptide by the use of the adjuvant.
    Type: Application
    Filed: August 6, 2021
    Publication date: January 25, 2024
    Applicant: MEDRx Co., Ltd.
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Tatsuhiro Ishida
  • Publication number: 20230167448
    Abstract: The present invention provides a novel siRNA specifically inhibiting the expression of IL-23 and a pharmaceutical composition comprising the siRNA, specifically a double stranded RNA comprising a sense strand and an antisense strand wherein each strand has 19 to 30 nucleotides and comprises the base sequence selected from SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6 or a complementary base sequence thereof and a pharmaceutical composition comprising the double stranded RNA.
    Type: Application
    Filed: April 2, 2021
    Publication date: June 1, 2023
    Applicant: MEDRx Co., Ltd.
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Tatsuhiro Ishida
  • Patent number: 11622976
    Abstract: An object of the present invention is to provide a highly effective method for treatment/remission of cancer, and prevention of recurrence/metastasis of cancer at low cost and with few side effects. A composition containing a urinary alkalinization agent, for use in treatment or remission of cancer, or prevention of recurrence or metastasis of cancer.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: April 11, 2023
    Assignee: Delta-Fly Pharma, Inc.
    Inventors: Hiromi Wada, Kiyoshi Eshima, Tatsuhiro Ishida, Reo Hamaguchi
  • Patent number: 11524078
    Abstract: The present invention aims at providing novel means for administering Venetoclax, wherein the means reduces the burden on a patient caused by taking Venetoclax and achieves a good balance between the effect and safety of Venetoclax. The present invention relates to a water-soluble macromolecular derivative that includes a plurality of Venetoclaxs, each Venetoclax being linked to a terminal carboxyl group of a multi-arm water-soluble polymer via an amide bond.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 13, 2022
    Assignee: Delta-Fly Pharma, Inc.
    Inventors: Kiyoshi Eshima, Tatsuhiro Ishida
  • Publication number: 20220313718
    Abstract: An object of the present invention is to provide a new means for treating or ameliorating a blood cancer patient, wherein the new means has high effect and few side effects. The present invention relates to a combined medicine for use in a method for treating or ameliorating a blood cancer patient, comprising 4-amino-1-(2-cyano-2-deoxy-?-D-arabinofuranosyl)-2(1H)-pyrimidinone or a salt thereof and venetoclax or a salt thereof.
    Type: Application
    Filed: July 17, 2020
    Publication date: October 6, 2022
    Applicant: Delta-Fly Pharma, Inc.
    Inventors: Tatsuhiro ISHIDA, Kiyoshi ESHIMA
  • Patent number: 11246847
    Abstract: The present invention relates to a pharmaceutical composition comprising a citrate salt for use in enhancing the effect of an anticancer drug.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 15, 2022
    Assignee: Delta-Fly Pharma, Inc.
    Inventors: Hiromi Wada, Tatsuhiro Ishida, Kiyoshi Eshima
  • Publication number: 20210386862
    Abstract: The present invention aims at providing novel means for administering Venetoclax, wherein the means reduces the burden on a patient caused by taking Venetoclax and achieves a good balance between the effect and safety of Venetoclax. The present invention relates to a water-soluble macromolecular derivative that includes a plurality of Venetoclaxs, each Venetoclax being linked to a terminal carboxyl group of a multi-arm water-soluble polymer via an amide bond.
    Type: Application
    Filed: July 17, 2020
    Publication date: December 16, 2021
    Applicant: Delta-Fly Pharma, Inc.
    Inventors: Kiyoshi ESHIMA, Tatsuhiro ISHIDA
  • Publication number: 20210317805
    Abstract: An EGR system comprising at least one of an EGR cooler and an EGR valve is arranged above an intake manifold. A pair of facing surfaces which face each other with a space are provided at the EGR system attached to the intake manifold and the intake manifold. A damper plate having elasticity is arranged between these facing surfaces. The damper plate is configured to have a larger thickness than the above-described space and have a smaller Young's modulus than each of a lower-side facing-surface portion and an upper-side facing-surface portion, and the damper plate is clamped between the lower-side facing-surface portion and the upper-side facing-surface portion.
    Type: Application
    Filed: March 2, 2021
    Publication date: October 14, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Jiro KATO, Taichi MASUOKA, Yuichi TANIGUCHI, Taketoshi YAMAUCHI, Hirofumi SHINOHARA, Akito KUMAMOTO, Takashi MIYAMOTO, Tatsuhiro ISHIDA
  • Publication number: 20210228517
    Abstract: The present invention relates to a pharmaceutical composition comprising a citrate salt for use in enhancing the effect of an anticancer drug.
    Type: Application
    Filed: February 5, 2020
    Publication date: July 29, 2021
    Applicant: Delta-Fly Pharma, Inc.
    Inventors: Hiromi WADA, Tatsuhiro ISHIDA, Kiyoshi ESHIMA
  • Patent number: 10993913
    Abstract: An object of the present invention is to provide an oxaliplatin-encapsulating liposome aqueous dispersion that has excellent long-term storage stability. The present invention provides an aqueous dispersion of liposomes encapsulating oxaliplatin, the oxaliplatin-encapsulating liposome aqueous dispersion containing 2-morpholinoethanesulfonic acid in an external aqueous phase.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: May 4, 2021
    Assignees: Taiho Pharmaceutical Co., Ltd, University of Tokushima
    Inventors: Yusuke Doi, Tatsuhiro Ishida
  • Publication number: 20200368273
    Abstract: An object of the present invention is to provide a highly effective method for treatment/remission of cancer, and prevention of recurrence/metastasis of cancer at low cost and with few side effects. A composition containing a urinary alkalinization agent, for use in treatment or remission of cancer, or prevention of recurrence or metastasis of cancer.
    Type: Application
    Filed: November 22, 2018
    Publication date: November 26, 2020
    Applicant: Delta-Fly Pharma, Inc.
    Inventors: Hiromi WADA, Kiyoshi ESHIMA, Tatsuhiro ISHIDA, Reo HAMAGUCHI
  • Publication number: 20190321294
    Abstract: An object of the present invention is to provide an oxaliplatin-encapsulating liposome aqueous dispersion that has excellent long-term storage stability. The present invention provides an aqueous dispersion of liposomes encapsulating oxaliplatin, the oxaliplatin-encapsulating liposome aqueous dispersion containing 2-morpholinoethanesulfonic acid in an external aqueous phase.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Applicants: Taiho Pharmaceutical Co., Ltd., The University of Tokushima
    Inventors: Yusuke DOI, Tatsuhiro ISHIDA
  • Patent number: 10383822
    Abstract: An object of the present invention is to provide an oxaliplatin-encapsulating liposome aqueous dispersion that has excellent long-term storage stability. The present invention provides an aqueous dispersion of liposomes encapsulating oxaliplatin, the oxaliplatin-encapsulating liposome aqueous dispersion containing 2-morpholinoethanesulfonic acid in an external aqueous phase.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 20, 2019
    Assignees: TAIHO PHARMACEUTICAL CO., LTD., TOKUSHIMA UNIVERSITY
    Inventors: Yusuke Doi, Tatsuhiro Ishida
  • Patent number: 9855345
    Abstract: An object of this invention is to provide a novel delivery means that enables efficient delivery of an active ingredient to a target cell. Such objective is attained by a lipoplex comprising dioleylphosphatidylethanolamine (DOPE), phosphatidylcholine, a cationic lipid, and an RNAi molecule and an industrial method for producing the same.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 2, 2018
    Assignee: DELTA-FLY PHARMA, INC.
    Inventors: Tatsuhiro Ishida, Kiyoshi Eshima, Masakazu Fukushima
  • Publication number: 20170319713
    Abstract: An object of this invention is to provide a novel delivery means that enables efficient delivery of an active ingredient to a target cell. Such objective is attained by a lipoplex comprising dioleylphosphatidylethanolamine (DOPE), phosphatidylcholine, a cationic lipid, and an RNAi molecule and an industrial method for producing the same.
    Type: Application
    Filed: October 28, 2015
    Publication date: November 9, 2017
    Applicant: DELTA-FLY PHARMA, INC.
    Inventors: Tatsuhiro ISHIDA, Kiyoshi ESHIMA, Masakazu FUKUSHIMA
  • Patent number: 9745583
    Abstract: This invention provides a novel delivery means that enables efficient delivery of an active ingredient to a target cell. Such novel delivery means is a liposome for topical administration that consists of dioleylphosphatidylethanolamine (DOPE), phosphatidylcholine, and cationic lipid, that is not modified with PEG, and that is free of cholesterol.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: August 29, 2017
    Assignee: DELTA-FLY PHARMA, INC.
    Inventor: Tatsuhiro Ishida
  • Publication number: 20160208263
    Abstract: This invention provides a novel delivery means that enables efficient delivery of an active ingredient to a target cell. Such novel delivery means is a liposome for topical administration that consists of dioleylphosphatidylethanolamine (DOPE), phosphatidylcholine, and cationic lipid, that is not modified with PEG, and that is free of cholesterol.
    Type: Application
    Filed: November 1, 2013
    Publication date: July 21, 2016
    Applicant: DELTA-FLY PHARMA, INC.
    Inventor: Tatsuhiro ISHIDA
  • Patent number: 8940327
    Abstract: An object of the present invention is to further enhance the antitumor effect when oxaliplatin is administered in combination with a combination drug containing tegafur, gimeracil and oteracil potassium. According to the present invention, by using oxaliplatin encapsulated in a liposome preparation, combination therapy of oxaliplatin plus a combination drug containing tegafur, gimeracil and oteracil potassium, is revealed to show remarkably enhanced antitumor effect without increasing side effects.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 27, 2015
    Assignees: The University of Tokushima, Taiho Pharmaceutical Co. Ltd.
    Inventors: Tatsuhiro Ishida, Hiroshi Kiwada