Patents by Inventor Hirofumi Hamada
Hirofumi Hamada 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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Patent number: 12606634Abstract: 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: GrantFiled: April 8, 2024Date of Patent: April 21, 2026Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20250257146Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.Type: ApplicationFiled: March 4, 2025Publication date: August 14, 2025Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPRORO MEDICAL UNIVERSITYInventors: Toshinori AGATSUMA, Shu TAKAHASHI, Jun HASEGAWA, Daisuke OKAJIMA, Hirofumi HAMADA, Miki YAMAGUCHI
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Patent number: 12350344Abstract: 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: GrantFiled: April 5, 2022Date of Patent: July 8, 2025Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20250114647Abstract: 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: ApplicationFiled: December 12, 2024Publication date: April 10, 2025Applicant: Daiichi Sankyo Company, LimitedInventors: 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
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Patent number: 12246196Abstract: 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: GrantFiled: June 26, 2022Date of Patent: March 11, 2025Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Patent number: 12105463Abstract: An image forming apparatus includes a transfer body that rotates and transfers a transferred image to a target transfer body at a transfer position, plural image holding members that rotate together with the transfer body at different positions along a rotation direction of the transfer body while outer peripheral surfaces of the image holding members come into contact with the transfer body, the image holding members on which a charge erasing operation is sequentially performed after images held on the outer peripheral surfaces sequentially transferred to the transfer body, and in which the charge erasing operation on all the image holding members has been ended, and then rotations of all the image holding members are stopped, a first charge erasing unit that erases charges of an outer peripheral surface of at least one image holding member other than a most downstream image holding member disposed on a most downstream side of the rotation direction with respect to the transfer position, among the plural imaType: GrantFiled: April 6, 2023Date of Patent: October 1, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Shota Nakazawa, Hiroki Ando, Hirofumi Hamada, Hirofumi Iida
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Publication number: 20240299573Abstract: 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: ApplicationFiled: April 8, 2024Publication date: September 12, 2024Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20240192632Abstract: An image forming apparatus includes a transfer body that rotates and transfers a transferred image to a target transfer body at a transfer position, plural image holding members that rotate together with the transfer body at different positions along a rotation direction of the transfer body while outer peripheral surfaces of the image holding members come into contact with the transfer body, the image holding members on which a charge erasing operation is sequentially performed after images held on the outer peripheral surfaces sequentially transferred to the transfer body, and in which the charge erasing operation on all the image holding members has been ended, and then rotations of all the image holding members are stopped, a first charge erasing unit that erases charges of an outer peripheral surface of at least one image holding member other than a most downstream image holding member disposed on a most downstream side of the rotation direction with respect to the transfer position, among the plural imaType: ApplicationFiled: April 6, 2023Publication date: June 13, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Shota NAKAZAWA, Hiroki ANDO, Hirofumi HAMADA, Hirofumi IIDA
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Patent number: 11628223Abstract: 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: GrantFiled: September 28, 2018Date of Patent: April 18, 2023Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20230084707Abstract: 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: ApplicationFiled: April 5, 2022Publication date: March 16, 2023Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Patent number: 11583590Abstract: 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: GrantFiled: December 6, 2021Date of Patent: February 21, 2023Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20220395579Abstract: 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: ApplicationFiled: June 26, 2022Publication date: December 15, 2022Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20220125943Abstract: 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: ApplicationFiled: December 6, 2021Publication date: April 28, 2022Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Publication number: 20210238303Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.Type: ApplicationFiled: April 14, 2021Publication date: August 5, 2021Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITYInventors: Toshinori AGATSUMA, Shu TAKAHASHI, Jun HASEGAWA, Daisuke OKAJIMA, Hirofumi HAMADA, Miki YAMAGUCHI
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Patent number: 11008398Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.Type: GrantFiled: January 24, 2019Date of Patent: May 18, 2021Assignees: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITYInventors: Toshinori Agatsuma, Shu Takahashi, Jun Hasegawa, Daisuke Okajima, Hirofumi Hamada, Miki Yamaguchi
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Patent number: 10908525Abstract: A bearing component for rotatably receiving a rotating shaft on an end of a rotating unit includes a component body, an inner protrusion, and one or more outer protrusions. The component body has a recess into which the rotating shaft is rotatably inserted. The inner protrusion protrudes from a wall portion of the recess facing an end surface of the rotating shaft. The inner protrusion receives an axial load by the rotating shaft. The outer protrusions protrude from an outer surface of the component body opposite to the recess. The one or more outer protrusions are in contact with a holding unit. A contact portion between the outer protrusions and the holding unit is offset from a contact portion position between the inner protrusion and the end surface. The contact portion between at least one of the outer protrusions and the holding unit has a non-planar shape.Type: GrantFiled: December 20, 2019Date of Patent: February 2, 2021Assignee: FUJI XEROX CO.. LTD.Inventors: Kazuki Kuramoto, Keiichiro Sato, Shuhei Yamazaki, Hirofumi Hamada, Toru Morioka
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Publication number: 20200319572Abstract: A bearing component for rotatably receiving a rotating shaft on an end of a rotating unit includes a component body, an inner protrusion, and one or more outer protrusions. The component body has a recess into which the rotating shaft is rotatably inserted. The inner protrusion protrudes from a wall portion of the recess facing an end surface of the rotating shaft. The inner protrusion receives an axial load by the rotating shaft. The outer protrusions protrude from an outer surface of the component body opposite to the recess. The one or more outer protrusions are in contact with a holding unit. A contact portion between the outer protrusions and the holding unit is offset from a contact portion position between the inner protrusion and the end surface. The contact portion between at least one of the outer protrusions and the holding unit has a non-planar shape.Type: ApplicationFiled: December 20, 2019Publication date: October 8, 2020Applicant: FUJI XEROX CO., LTD.Inventors: Kazuki KURAMOTO, Keiichiro Sato, Shuhei Yamazaki, Hirofumi Hamada, Toru Morioka
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Publication number: 20200261594Abstract: 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: ApplicationFiled: September 28, 2018Publication date: August 20, 2020Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: 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
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Patent number: 10564581Abstract: An image forming apparatus includes a photoreceptor, a charging unit, an exposure unit, a developing unit, a transfer unit, a detector, and a controller. The charging unit charges the photoreceptor. The exposure unit exposes the photoreceptor charged by the charging unit to light and forms an electrostatic latent image on the photoreceptor. The developing unit develops the electrostatic latent image that has been exposed by the exposure unit and formed on the photoreceptor. The transfer unit transfers an image obtained by development by the developing unit to a transfer object. The detector detects strip developer, which is a strip-shaped developer image formed on the transfer object.Type: GrantFiled: February 27, 2019Date of Patent: February 18, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Kazuki Kuramoto, Yasuhiro Funayama, Hirofumi Hamada
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Publication number: 20190144559Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.Type: ApplicationFiled: January 24, 2019Publication date: May 16, 2019Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITYInventors: Toshinori Agatsuma, Shu Takahashi, Jun Hasegawa, Daisuke Okajima, Hirofumi Hamada, Miki Yamaguchi