Patents by Inventor Takashi Emura
Takashi Emura 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).
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Publication number: 20240409524Abstract: The present invention relates to a compound having (i) a photocleavable moiety, and (ii) at least one selected from the group consisting of a target substance binding site and an anchor binding site.Type: ApplicationFiled: September 29, 2022Publication date: December 12, 2024Inventors: Rie SAITO, Kazuhiko NAKANO, Atsushi OHTA, Takashi EMURA
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Publication number: 20240166689Abstract: An object of the present invention is to provide methods of discovering drugs effective for tough targets, which have conventionally been discovered only with difficulty. The present invention relates to novel methods for cyclizing peptide compounds, and novel peptide compounds and libraries comprising the same, to achieve the above object.Type: ApplicationFiled: September 1, 2023Publication date: May 23, 2024Inventors: Shiori KARIYUKI, Takeo IIDA, Miki KOJIMA, Ryuichi TAKEYAMA, Mikimasa TANADA, Tetsuo KOJIMA, Hitoshi IIKURA, Atsushi MATSUO, Takuya SHIRAISHI, Takashi EMURA, Kazuhiko NAKANO, Koji TAKANO, Kousuke ASOU, Takuya TORIZAWA, Ryusuke TAKANO, Nozomi HISADA, Naoaki MURAO, Atsushi OHTA, Kaori KIMURA, Yusuke YAMAGISHI, Tatsuya KATO
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Publication number: 20240158785Abstract: An objective of the present invention is to provide target tissue-specific antigen-binding molecules, antigen-binding molecules whose antigen-binding activity varies depending on the concentration of an unnatural compound, libraries comprising a plurality of the antigen-binding molecules which are different from one another, pharmaceutical compositions comprising the antigen-binding molecules, methods of screening for the antigen-binding molecules, and methods for producing the antigen-binding molecules. The present inventors created antigen-binding domains whose antigen-binding activity varies depending on the concentration of a small molecule compound or antigen-binding molecules containing an antigen-binding domain, and libraries comprising a plurality of the antigen-binding domains which are different from one another or antigen-binding domains, and demonstrated that the above-noted objective could be achieved by using the libraries.Type: ApplicationFiled: January 12, 2024Publication date: May 16, 2024Applicant: Chugai Seiyaku Kabushiki KaishaInventors: Tomoyuki Igawa, Shigero Tamba, Shun Shimizu, Kanako Tatsumi, Shojiro Kadono, Hiroki Kawauchi, Kazuhiro Ohara, Masayuki Matsushita, Takashi Emura, Masaki Kamimura
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Publication number: 20240132431Abstract: The present invention provides a method for producing a compound having an alkylated acidic functional group, the method comprising reacting, in a mixture containing two or more compounds having an acidic functional group as substrates, the compounds with an alkylating agent selected from compounds represented by formula A, formula B, or formula C in the presence of a base to alkylate the acidic functional group.Type: ApplicationFiled: January 6, 2022Publication date: April 25, 2024Inventors: Tadakatsu HAYASE, Satoshi TSUCHIYA, Kenichi NOMURA, Takashi EMURA
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Patent number: 11912989Abstract: An objective of the present invention is to provide target tissue-specific antigen-binding molecules, antigen-binding molecules whose antigen-binding activity varies depending on the concentration of an unnatural compound, libraries comprising a plurality of the antigen-binding molecules which are different from one another, pharmaceutical compositions comprising the antigen-binding molecules, methods of screening for the antigen-binding molecules, and methods for producing the antigen-binding molecules. The present inventors created antigen-binding domains whose antigen-binding activity varies depending on the concentration of a small molecule compound or antigen-binding molecules containing an antigen-binding domain, and libraries comprising a plurality of the antigen-binding domains which are different from one another or antigen-binding domains, and demonstrated that the above-noted objective could be achieved by using the libraries.Type: GrantFiled: February 23, 2021Date of Patent: February 27, 2024Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Tomoyuki Igawa, Shigero Tamba, Shun Shimizu, Kanako Tatsumi, Shojiro Kadono, Hiroki Kawauchi, Kazuhiro Ohara, Masayuki Matsushita, Takashi Emura, Masaki Kamimura
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Patent number: 11891457Abstract: An object of the present invention is to provide methods of discovering drugs effective for tough targets, which have conventionally been discovered only with difficulty. The present invention relates to novel methods for cyclizing peptide compounds, and novel peptide compounds and libraries comprising the same, to achieve the above object.Type: GrantFiled: September 3, 2020Date of Patent: February 6, 2024Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Shiori Kariyuki, Takeo Iida, Miki Kojima, Ryuichi Takeyama, Mikimasa Tanada, Tetsuo Kojima, Hitoshi Iikura, Atsushi Matsuo, Takuya Shiraishi, Takashi Emura, Kazuhiko Nakano, Koji Takano, Kousuke Asou, Takuya Torizawa, Ryusuke Takano, Nozomi Hisada, Naoaki Murao, Atsushi Ohta, Kaori Kimura, Yusuke Yamagishi, Tatsuya Kato
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Publication number: 20230406879Abstract: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.Type: ApplicationFiled: September 1, 2023Publication date: December 21, 2023Inventors: Kenichi NOMURA, Terushige MURAOKA, Mikimasa TANADA, Takashi EMURA
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Patent number: 11787836Abstract: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.Type: GrantFiled: October 31, 2022Date of Patent: October 17, 2023Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Kenichi Nomura, Terushige Muraoka, Mikimasa Tanada, Takashi Emura
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Publication number: 20230142119Abstract: A compound represented by the general Formula (I) below, or a salt or solvate thereof, which is useful as an ALK inhibitor, and is useful for prophylaxis or treatment of a disease accompanied by abnormality in ALK, for example, cancer, cancer metastasis, depression or cognitive function disorder: (meanings of the symbols that are included in the formula are as given in the specification).Type: ApplicationFiled: July 8, 2022Publication date: May 11, 2023Applicant: Chugai Seiyaku Kabushiki KaishaInventors: Kazutomo KINOSHITA, Kohsuke ASOH, Noriyuki FURUICHI, Toshiya ITO, Hatsuo KAWADA, Nobuya ISHII, Hiroshi SAKAMOTO, WooSang HONG, MinJeong PARK, Yoshiyuki ONO, Yasuharu KATO, Kenji MORIKAMI, Takashi EMURA, Nobuhiro OIKAWA
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Publication number: 20230138226Abstract: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.Type: ApplicationFiled: October 31, 2022Publication date: May 4, 2023Inventors: Kenichi NOMURA, Terushige MURAOKA, Mikimasa TANADA, Takashi EMURA
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Patent number: 11542299Abstract: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.Type: GrantFiled: June 8, 2018Date of Patent: January 3, 2023Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Kenichi Nomura, Terushige Muraoka, Mikimasa Tanada, Takashi Emura
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Publication number: 20220306578Abstract: A compound represented by the general Formula (I) below, or a salt or solvate thereof, which is useful as an ALK inhibitor, and is useful for prophylaxis or treatment of a disease accompanied by abnormality in ALK, for example, cancer, cancer metastasis, depression or cognitive function disorder: (meanings of the symbols that are included in the formula are as given in the specification).Type: ApplicationFiled: April 29, 2020Publication date: September 29, 2022Applicant: Chugai Seiyaku Kabushiki KaishaInventors: Kazutomo KINOSHITA, Kohsuke ASOH, Noriyuki FURUICHI, Toshiya ITO, Hatsuo KAWADA, Nobuya ISHII, Hiroshi SAKAMOTO, WooSang HONG, MinJeong PARK, Yoshiyuki ONO, Yasuharu KATO, Kenji MORIKAMI, Takashi EMURA, Nobuhiro OIKAWA
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Patent number: 11389539Abstract: The present invention provides hyaluronic acid derivatives into which a certain cationic group and a certain hydrophobic group are introduced, the hyaluronic acid derivatives including one or more repeating units represented by the formula (Ia) and one or more repeating units represented by the formula (Ib).Type: GrantFiled: May 11, 2017Date of Patent: July 19, 2022Assignee: CHUGAI SEIYAKU KABUSHIKI KAISHAInventors: Takashi Nakai, Teruo Nakamura, Sayan Chuanoi, Hideyuki Togawa, Tsuyoshi Shimoboji, Kazuo Hattori, Takashi Emura
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Publication number: 20220205009Abstract: In some embodiments, the present disclosure relates to mutated tRNAs in which the first letter of the anticodon has been substituted to lysidine or agmatidine, and translation systems containing the mutated tRNAs. In a specific embodiment, the present disclosure provides mutated tRNAs capable of selectively translating codon NNA. In another embodiment, the present disclosure provides translation systems capable of translating two or three types of amino acids from a single codon box. In still another embodiment, the present disclosure provides novel methods for synthesizing lysidine diphosphate, agmatidine diphosphate, and derivatives thereof.Type: ApplicationFiled: December 26, 2019Publication date: June 30, 2022Inventors: Shojiro SHINOHARA, Takaaki TANIGUCHI, Miki MISAIZU, Kaori NISHIMURA, Mana IWAHASHI, Takashi EMURA, Kazuhiko NAKANO, Masahiko TANAKA, Takamichi OHDAKE, Atsushi OHTA
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Publication number: 20210180049Abstract: An objective of the present invention is to provide target tissue-specific antigen-binding molecules, antigen-binding molecules whose antigen-binding activity varies depending on the concentration of an unnatural compound, libraries comprising a plurality of the antigen-binding molecules which are different from one another, pharmaceutical compositions comprising the antigen-binding molecules, methods of screening for the antigen-binding molecules, and methods for producing the antigen-binding molecules. The present inventors created antigen-binding domains whose antigen-binding activity varies depending on the concentration of a small molecule compound or antigen-binding molecules containing an antigen-binding domain, and libraries comprising a plurality of the antigen-binding domains which are different from one another or antigen-binding domains, and demonstrated that the above-noted objective could be achieved by using the libraries.Type: ApplicationFiled: February 23, 2021Publication date: June 17, 2021Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHAInventors: Tomoyuki Igawa, Shigero Tamba, Shun Shimizu, Kanako Tatsumi, Shojiro Kadono, Hiroki Kawauchi, Kazuhiro Ohara, Masayuki Matsushita, Takashi Emura, Masaki Kamimura
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Patent number: 10961530Abstract: An objective of the present invention is to provide target tissue-specific antigen-binding molecules, antigen-binding molecules whose antigen-binding activity varies depending on the concentration of an unnatural compound, libraries comprising a plurality of the antigen-binding molecules which are different from one another, pharmaceutical compositions comprising the antigen-binding molecules, methods of screening for the antigen-binding molecules, and methods for producing the antigen-binding molecules. The present inventors created antigen-binding domains whose antigen-binding activity varies depending on the concentration of a small molecule compound or antigen-binding molecules containing an antigen-binding domain, and libraries comprising a plurality of the antigen-binding domains which are different from one another or antigen-binding domains, and demonstrated that the above-noted objective could be achieved by using the libraries.Type: GrantFiled: December 4, 2014Date of Patent: March 30, 2021Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Tomoyuki Igawa, Shigero Tamba, Shun Shimizu, Kanako Tatsumi, Shojiro Kadono, Hiroki Kawauchi, Kazuhiro Ohara, Masayuki Matsushita, Takashi Emura, Masaki Kamimura
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Publication number: 20210061860Abstract: An object of the present invention is to provide methods of discovering drugs effective for tough targets, which have conventionally been discovered only with difficulty. The present invention relates to novel methods for cyclizing peptide compounds, and novel peptide compounds and libraries comprising the same, to achieve the above object.Type: ApplicationFiled: September 3, 2020Publication date: March 4, 2021Applicant: Chugai Seiyaku Kabushiki KaishaInventors: Shiori KARIYUKI, Takeo Ilda, Miki Kojima, Ryuichi Takeyama, Mikimasa Tanada, Tetsuo Kojima, Hitoshi Ilkura, Atsushi Matsuo, Takuya Shiraishi, Takashi Emura, Kazuhiko Nakano, Koji Takano, Kousuke Asou, Takuya Torizawa, Ryusuke Takano, Nozomi Hisada, Naoaki Murao, Atsushi Ohta, Kaori Kimura, Yusuke Yamagishi, Tatsuya Kato
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Publication number: 20200277327Abstract: Methods of producing a peptide containing an N-substituted amino acid or N-substituted amino acid analog of the present invention include the steps of: preparing an Fmoc-protected amino acid, an Fmoc-protected amino acid analog, or an Fmoc-protected peptide; deprotecting a protecting group which have an Fmoc skeleton of the Fmoc-protected amino acid and such by using a base; and forming an amide bond by adding a new Fmoc-protected amino acid and such; and when the peptide is produced by a solid-phase method, the obtained peptide is cleaved off from the solid phase under conditions of weaker acidity than TFA. Furthermore, at least one side chain of the obtained peptide has a protecting group that is not deprotected under basic conditions and is deprotected under conditions of weaker acidity than TFA.Type: ApplicationFiled: June 8, 2018Publication date: September 3, 2020Inventors: Kenichi NOMURA, Terushige MURAOKA, Mikimasa TANADA, Takashi EMURA
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Publication number: 20200017442Abstract: A compound represented by the general Formula (I) below, or a salt or solvate thereof, which is useful as an ALK inhibitor, and is useful for prophylaxis or treatment of a disease accompanied by abnormality in ALK, for example, cancer, cancer metastasis, depression or cognitive function disorder: (meanings of the symbols that are included in the formula are as given in the specification).Type: ApplicationFiled: January 4, 2019Publication date: January 16, 2020Applicant: Chugai Seiyaku Kabushiki KaishaInventors: Kazutomo KINOSHITA, Kohsuke ASOH, Noriyuki FURUICHI, Toshiya ITO, Hatsuo KAWADA, Nabuya ISHII, Hiroshi SAKAMOTO, WooSang HONG, MinJeong PARK, Yoshiyuki ONO, Yasuharu KATO, Kenji MORIKAMI, Takashi EMURA, Nobuhiro OIKAWA
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Publication number: 20190285559Abstract: An object is to provide a measurement device using X-ray reflection that can reduce space required for measurement, simplify the setting procedure, and improve measurement accuracy. The measurement device using X-ray reflection includes an X-ray tube 1 configured to emit an X-ray beam, a detector 7 configured to detect a reflected beam of the X-ray beam, a rotational driving unit configured to rotate the X-ray tube 1 and the detector 7, a calibration plate 22 configured to reflect the X-ray beam emitted from the X-ray tube 1 toward the detector 7, and a control unit configured to perform a predetermined computation.Type: ApplicationFiled: March 14, 2019Publication date: September 19, 2019Applicant: Earthnix-M, Inc.Inventors: Hiroshi UCHIDA, Takashi Emura, Junichi Ogawa, Ryusuke Nakanishi