Patents by Inventor Issei Doi
Issei Doi 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: 20260102348Abstract: An object of the present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided.Type: ApplicationFiled: June 4, 2025Publication date: April 16, 2026Applicant: FUJIFILM CorporationInventors: Shintaro TANABE, Masahiko YAMAMOTO, Kimihiko SATO, Motomasa TAKAHASHI, Kazuhiro TSUNA, Yasutaka TASAKI, Taisuke ENDO, Issei DOI, Hirofumi FUKUNAGA
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Publication number: 20250326744Abstract: A compound and a pharmaceutical composition have an inhibitory activity on a drug efflux pump of drug-resistant bacteria, and can restore the antibacterial activity of other agents in a case of being used in combination with other drugs. A compound represented by General Formula [1], or a salt thereof, and a pharmaceutical composition containing the compound or the salt are provided. In Formula [1], each symbol is as described in the specification.Type: ApplicationFiled: February 24, 2025Publication date: October 23, 2025Applicants: FUJIFILM Corporation, Osaka UniversityInventors: Issei Doi, Masasuke Fujiwara, Kentaro Furuya, Tomofumi Nakae, Keita Tanaka, Kunihiko Nishino, Seiji Yamasaki, Ryosuke Nakashima, Takayoshi Suzuki, Yuri Takada, Atsushi Nakagawa, Eiki Yamashita
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Publication number: 20250322968Abstract: A request reception unit receives structure information of a candidate drug by receiving a prediction request. A derivation unit derives a feature value of the candidate drug from the structure information. A prediction unit predicts an inclusion property of the candidate drug in a liposome from a contributing feature value of the candidate drug. A screen delivery controller presents a prediction result of the inclusion property of the candidate drug in the liposome and a known characteristic of a reference drug in a comparable manner.Type: ApplicationFiled: April 3, 2025Publication date: October 16, 2025Inventors: Mikinaga MORI, Yasushi HIKIDA, Mariko AKIBA, Issei DOI, Jun NAKABAYASHI, Kentaro NUMAJIRI, Makiko AIMI
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Patent number: 12370143Abstract: An object of the present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided.Type: GrantFiled: February 16, 2024Date of Patent: July 29, 2025Assignee: FUJIFILM CorporationInventors: Shintaro Tanabe, Masahiko Yamamoto, Kimihiko Sato, Motomasa Takahashi, Kazuhiro Tsuna, Yasutaka Tasaki, Taisuke Endo, Issei Doi, Hirofumi Fukunaga
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Patent number: 12285525Abstract: An object of the present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided.Type: GrantFiled: December 4, 2020Date of Patent: April 29, 2025Assignee: FUJIFILM CorporationInventors: Shintaro Tanabe, Masahiko Yamamoto, Kimihiko Sato, Motomasa Takahashi, Kazuhiro Tsuna, Yasutaka Tasaki, Taisuke Endo, Issei Doi, Hirofumi Fukunaga
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Publication number: 20240315970Abstract: An object of the present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided.Type: ApplicationFiled: February 16, 2024Publication date: September 26, 2024Applicant: FUJIFILM CorporationInventors: Shintaro TANABE, Masahiko YAMAMOTO, Kimihiko SATO, Motomasa TAKAHASHI, Kazuhiro TSUNA, Yasutaka TASAKI, Taisuke ENDO, Issei DOI, Hirofumi FUKUNAGA
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Patent number: 11316395Abstract: A method of manufacturing an armature coil includes steps of arranging a plurality of coil conductors of the armature coil between an end metal die and a back portion metal die on a lower metal die; pressing, with the upper metal die in a pressing direction, the plurality of the coil conductors arranged between the end metal die and the back portion metal die on the lower metal die; and removing coil conductors that become formed in a convex shape and a concave shape from the lower metal die. The upper metal die may be provided with an inclined portion on a lower metal die side of the upper metal die, and the upper metal die may be configured to be pressed such that a space is formed by the dies, the space having a width that gets gradually narrower.Type: GrantFiled: May 24, 2019Date of Patent: April 26, 2022Assignee: Mitsubishi Electric CorporationInventors: Koji Tamura, Shuichi Tamura, Akihiro Yamamura, Issei Doi, Hiroyuki Matsuo, Yasukazu Nishimura, Sachiko Kawasaki, Akihiko Mori
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Publication number: 20210085604Abstract: An object of the present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Applicant: FUJIFILM CorporationInventors: Shintaro TANABE, Masahiko YAMAMOTO, Kimihiko SATO, Motomasa TAKAHASHI, Kazuhiro TSUNA, Yasutaka TASAKI, Taisuki ENDO, Issei DOI, Hirofumi FUKUNAGA
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Patent number: 10644556Abstract: Provided is in an armature coil formed by arranging a plurality of coil conductors on a lower metal die having a tapered groove that is narrower toward an inner side. The coils are pressed using an upper metal die having an end portion narrower than the width of the groove. The coils are formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.Type: GrantFiled: June 30, 2017Date of Patent: May 5, 2020Assignee: Mitsubishi Electric CorporationInventors: Koji Tamura, Shuichi Tamura, Akihiro Yamamura, Issei Doi, Hiroyuki Matsuo, Yasukazu Nishimura, Sachiko Kawasaki, Akihiko Mori
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Publication number: 20190280543Abstract: In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.Type: ApplicationFiled: May 24, 2019Publication date: September 12, 2019Applicant: Mitsubishi Electric CorporationInventors: Koji TAMURA, Shuichi TAMURA, Akihiro YAMAMURA, Issei DOI, Hiroyuki MATSUO, Yasukazu NISHIMURA, Sachiko KAWASAKI, Akihiko MORI
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Patent number: 9960650Abstract: In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.Type: GrantFiled: April 26, 2013Date of Patent: May 1, 2018Assignee: Mitsubishi Electric CorporationInventors: Koji Tamura, Shuichi Tamura, Akihiro Yamamura, Issei Doi, Hiroyuki Matsuo, Yasukazu Nishimura, Sachiko Kawasaki, Akihiko Mori
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Publication number: 20170324291Abstract: In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.Type: ApplicationFiled: June 30, 2017Publication date: November 9, 2017Applicant: Mitsubishi Electric CorporationInventors: Koji TAMURA, Shuichi TAMURA, Akihiro YAMAMURA, Issei DOI, Hiroyuki MATSUO, Yasukazu NISHIMURA, Sachiko KAWASAKI, Akihiko MORI
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Patent number: 9624215Abstract: A novel amine derivative expressed by general formula (1) (in the formula: G1, G2, and G3 are the same or different and represent CH or a nitrogen atom; R1 represents a chlorine atom, an optionally-substituted C3-8 cycloalkyl group, or the like; R2 represents —COOR5 (in the formula, R5 represents a hydrogen atom or a carboxyl protective group), or the like; R3 represents a hydrogen atom, or the like; and R4 represents an optionally-substituted condensed bicyclic hydrocarbon group, an optionally-substituted bicyclic heterocyclic group, or the like), or a salt thereof is useful in procedures such as the treatment or prevention of conditions related to excessive keratinocyte proliferation.Type: GrantFiled: October 30, 2013Date of Patent: April 18, 2017Assignees: TOYAMA CHEMICAL CO., LTD., FUJIFILM CORPORATIONInventors: Tadashi Tanaka, Yoshitake Konishi, Daisuke Kubo, Masataka Fujino, Issei Doi, Daisuke Nakagawa, Tatsuya Murakami, Takayuki Yamakawa
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Publication number: 20150311757Abstract: In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.Type: ApplicationFiled: April 26, 2013Publication date: October 29, 2015Applicant: Mitsubishi Electric CorporationInventors: Koji TAMURA, Shuichi TAMURA, Akihiro YAMAMURA, Issei DOI, Hiroyuki MATSUO, Yasukazu NISHIMURA, Sachiko KAWASAKI, Akihiko MORI
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Publication number: 20150299189Abstract: A novel amine derivative expressed by general formula (1) (in the formula: G1, G2, and G3 are the same or different and represent CH or a nitrogen atom; R1 represents a chlorine atom, an optionally-substituted C3-8 cycloalkyl group, or the like; R2 represents —COOR5 (in the formula, R5 represents a hydrogen atom or a carboxyl protective group), or the like; R3 represents a hydrogen atom, or the like; and R4 represents an optionally-substituted condensed bicyclic hydrocarbon group, an optionally-substituted bicyclic heterocyclic group, or the like), or a salt thereof is useful in procedures such as the treatment or prevention of conditions related to excessive keratinocyte proliferation.Type: ApplicationFiled: October 30, 2013Publication date: October 22, 2015Applicants: TOYAMA CHEMICAL CO., LTD., FUJIFILM CORPORATIONInventors: Tadashi Tanaka, Yoshitake Konishi, Daisuke Kubo, Masataka Fujino, Issei Doi, Daisuke Nakagawa, Tatsuya Murakami, Takayuki Yamakawa