Patents by Inventor Mitsuhiro Iwamoto

Mitsuhiro Iwamoto 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: 12350344
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: July 8, 2025
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Publication number: 20250114647
    Abstract: Provided are novel antibody-pyrrolodiazepine derivatives and novel antibody-pyrrolodiazepine derivative conjugates, as well as methods of using the same, and a novel CLDN6 and/or CLDN9 antibody. The disclosed compounds are of the class of alkyl benzene sulfonyl ureas, useful as oral anti-diabetics, and include substituted benzo[e]pyrrolo[1,2-?][1,4]diazepine.
    Type: Application
    Filed: December 12, 2024
    Publication date: April 10, 2025
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Narihiro TODA, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Patent number: 12246196
    Abstract: Provided are novel antibody-pyrrolodiazepine derivative and novel antibody-pyrrolodiazepine derivative conjugates, as well as methods of using the same, and a novel CLDN6 and/or CLDN9 antibody. The disclosed compounds are of the class of alkyl benzene sulfonyl ureas, useful as oral anti-diabetics, and include substituted benzo[e]pyrrolo[1,2-?][1,4]diazepine.
    Type: Grant
    Filed: June 26, 2022
    Date of Patent: March 11, 2025
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Publication number: 20240336907
    Abstract: The present invention provides endo-?-N-acetylglucosaminidase (Endo-Si) cloning from a strain belonging to Streptococcus iniae and a mutant enzyme thereof, a gene encoding the enzyme, a recombinant plasmid, a transformant obtained by transformation of a cell by the plasmid and use thereof, and a method for producing e.g., a sugar chain remodeled antibody using the enzyme. A polypeptide having an amino acid sequence at amino acid positions 34 to 928 in SEQ ID NO: 2 or an amino acid sequence having the same amino acid sequence except containing one or mutations at more amino acid positions selected from the group consisting of amino acids at position 241 (D241), 190 (T190), 311 (Q311) and 360 (E360), said polypeptide exhibiting a sugar chain hydrolysis activity and/or transglycosylation activity.
    Type: Application
    Filed: September 1, 2021
    Publication date: October 10, 2024
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hanako NISHIZAWA, Yasunori ONO, Mitsuhiro IWAMOTO
  • Publication number: 20240299573
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: April 8, 2024
    Publication date: September 12, 2024
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
  • Patent number: 11958878
    Abstract: The present invention establishes a molecular therapy for glycogen storage disease type Ia. The present invention provides an oligonucleotide of 15-30 bases comprising a nucleotide sequence complementary to die cDNA of G6PC gene with c.648G>T mutation, wherein the oligonucleotide comprises a sequence complementary to a region comprising any site between the 82nd to the 92nd nucleotide from the 5? end of exon 5 of the G6PC gene with c.648C>T mutation, a pharmacologically acceptable salt or solvate thereof. Also provided is a pharmaceutical drug comprising the oligonucleotide, a pharmacologically acceptable salt or solvate thereof (e.g., therapeutic drug for glycogen storage disease type Ia).
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: April 16, 2024
    Assignees: Daiichi Sankyo Company, Limited, Kobe Gakuin Educational Foundation
    Inventors: Makoto Koizumi, Yoshiyuki Onishi, Takeshi Masuda, Mitsuhiro Iwamoto, Yukiko Sekiguchi, Kentaro Ito, Shinnosuke Tsuji, Masafumi Matsuo
  • Patent number: 11661021
    Abstract: A vehicle body front structure includes front frames, first and second bumper beams, sub-frames, gussets, and load transmission members. The front frames extend in a front-rear direction. The first bumper beam is disposed in front of the front frames. The first bumper beam extends in a vehicle width direction. The sub-frames are disposed below the front frames. The sub-frames extend in the front-rear direction. The second bumper beam is coupled to front ends of the sub-frames. Ends of the second bumper beam protrude further outward than the first bumper beam. Each gusset is coupled to a corresponding one of ends of the second bumper beam and a corresponding one of intermediate portions of the sub-frames. The gussets transmit an impact load to the intermediate portions. The load transmission members are coupled to the sub-frames. The load transmission members are disposed on outer side surfaces of the front frame.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: May 30, 2023
    Assignee: SUBARU CORPORATION
    Inventor: Mitsuhiro Iwamoto
  • Patent number: 11628223
    Abstract: A novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, comprising substituted benzo[e]pyrrolo[1,2-a][1,4]diazepines represented by the [Formula 24], [Formula 25], [Formula 26], and/or [Formula 27].
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 18, 2023
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Publication number: 20230084707
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: April 5, 2022
    Publication date: March 16, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
  • Patent number: 11583590
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: February 21, 2023
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Publication number: 20220395579
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: June 26, 2022
    Publication date: December 15, 2022
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
  • Publication number: 20220378920
    Abstract: The present invention provides a conjugate of an oligonucleotide having a nucleic acid sequence expected to have a pharmacological effect in hepatic parenchymal cells with a biantennary GalNAc unit, or a pharmaceutically acceptable salt thereof, and a medicament or the like containing the same as an active component.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 1, 2022
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Makoto Koizumi, Mitsuhiro Iwamoto, Yukiko Sekiguchi, Kentaro Ito
  • Publication number: 20220125943
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: December 6, 2021
    Publication date: April 28, 2022
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
  • Publication number: 20210331640
    Abstract: A vehicle body front structure includes front frames, first and second bumper beams, sub-frames, gussets, and load transmission members. The front frames extend in a front-rear direction. The first bumper beam is disposed in front of the front frames. The first bumper beam extends in a vehicle width direction. The sub-frames are disposed below the front frames. The sub-frames extend in the front-rear direction. The second bumper beam is coupled to front ends of the sub-frames. Ends of the second bumper beam protrude further outward than the first bumper beam. Each gusset is coupled to a corresponding one of ends of the second bumper beam and a corresponding one of intermediate portions of the sub-frames. The gussets transmit an impact load to the intermediate portions. The load transmission members are coupled to the sub-frames. The load transmission members are disposed on outer side surfaces of the front frame.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 28, 2021
    Inventor: Mitsuhiro IWAMOTO
  • Patent number: 11008392
    Abstract: The present invention provides a conjugate comprising a hANP peptide bonded via a polyethylene glycol linker to a glycan attached to Asn297 of a Fc-containing molecule (N297 glycan), or a pharmaceutically acceptable salt thereof, a medicament comprising the same as an active ingredient, a method for producing the same, etc.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 18, 2021
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Mitsuhiro Iwamoto, Shohei Oishi, Yukiko Sekiguchi, Hiroyuki Chaya, Ryuki Miyauchi, Takeshi Honda
  • Patent number: 11001819
    Abstract: The present invention provides an EndoS mutant enzyme having an amino acid sequence of EndoS D233Q and further having a particular additional mutation and exhibiting a reduced hydrolysis activity, in comparison with the activity of EndoS D233Q, to an N-linked sugar chain (N297-linked sugar chain) linked to Asn at position 297 in IgG and a gene encoding the same.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: May 11, 2021
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yoshirou Kawaguchi, Kensuke Nakamura, Yukiko Sekiguchi, Mitsuhiro Iwamoto
  • Patent number: 10947289
    Abstract: The present invention provides a modified atrial natriuretic peptide that exhibits prolonged duration in blood and maintains cGMP elevating activity. The present invention provides a modified peptide in which at least one sugar substance is linked directly through a glycosidic bond or via a linker structure to at least one hANP peptide, or a pharmaceutically acceptable salt thereof, a medicament comprising the modified peptide or the salt thereof as an active ingredient, etc.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: March 16, 2021
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Mitsuhiro Iwamoto, Takahiro Yamaguchi, Yutaka Mori, Keiji Saito, Takeshi Honda, Takahiro Nagayama
  • Publication number: 20210040170
    Abstract: The present invention provides a modified atrial natriuretic peptide that exhibits prolonged duration in blood and maintains cGMP elevating activity. The present invention provides a modified peptide in which at least one sugar substance is linked directly through a glycosidic bond or via a linker structure to at least one hANP peptide, or a pharmaceutically acceptable salt thereof, a medicament comprising the modified peptide or the salt thereof as an active ingredient, etc.
    Type: Application
    Filed: October 15, 2020
    Publication date: February 11, 2021
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Mitsuhiro IWAMOTO, Takahiro YAMAGUCHI, Yutaka MORI, Keiji SAITO, Takeshi HONDA, Takahiro NAGAYAMA
  • Publication number: 20200407394
    Abstract: The present invention establishes a molecular therapy for glycogen storage disease type Ia. The present invention provides an oligonucleotide of 15-30 bases comprising a nucleotide sequence complementary to the cDNA of G6PC gene with c.648G>T mutation, wherein the oligonucleotide comprises a sequence complementary to a region comprising any site between the 82nd to the 92nd nucleotide from the 5? end of exon 5 of the G6PC gene with c.648G>T mutation, a pharmacologically acceptable salt or solvate thereof. Also provided is a pharmaceutical drug comprising the oligonucleotide, a pharmacologically acceptable salt or solvate thereof (e.g., therapeutic drug for glycogen storage disease type Ia).
    Type: Application
    Filed: March 5, 2019
    Publication date: December 31, 2020
    Applicants: DAIICHI SANKYO COMPANY, LIMITED, KOBE GAKUIN EDUCATIONAL FOUNDATION
    Inventors: Makoto KOIZUMI, Yoshiyuki ONISHI, Takeshi MASUDA, Mitsuhiro IWAMOTO, Yukiko SEKIGUCHI, Kentaro ITO, Shinnosuke TSUJI, Masafumi MATSUO
  • Publication number: 20200261594
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 20, 2020
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA