Patents by Inventor Akira Matsumura
Akira Matsumura 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: 20230364303Abstract: [Object] Provided is a method of producing a nerve fascicle including efficiently extending axons of neural cells. [Solution] Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from the group consisting of vascular component cells, perivascular cells, and oligodendrocytes.Type: ApplicationFiled: September 17, 2021Publication date: November 16, 2023Applicant: University of TsukubaInventors: Hiroshi ISHIKAWA, Aiki MARUSHIMA, Yuji MATSUMARU, Masao KODA, Akira MATSUMURA, Hiroki BUKAWA, Akihiro OHYAMA, Junko TOYOMURA, Miho WATANABE, Tetsuya ABE, Shohei TAKAOKA, Yosuke SHIBAO, Hideaki MATSUMURA
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Publication number: 20220211764Abstract: The present disclosure relates to a neural cell population, a neural cell-containing preparation, and a method for producing the population and preparation. More particularly, the present invention relates to a neural cell population derived from intraoral mesenchymal cells, wherein a proportion of normal diploid cells is 80% or more, a preparation containing the neural cell population, and a method for producing the population and the preparation.Type: ApplicationFiled: May 14, 2020Publication date: July 7, 2022Applicant: UNIVERSITY OF TSUKUBAInventors: Aiki MARUSHIMA, Akira MATSUMURA, Hiroki BUKAWA, Masao KODA, Hiroshi ISHIKAWA, Akihiro OHYAMA, Junko TOYOMURA, Yuji MATSUMARU, Hideaki MATSUMURA, Miho WATANABE
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Publication number: 20220106561Abstract: [Object] Provided is a method of producing a nerve bundle including efficiently extending axons of neural cells. [Solution] Neural cells are cultivated in the presence of feeder cells including at least one type of cells selected from vascular component cells and perivascular cells.Type: ApplicationFiled: September 17, 2021Publication date: April 7, 2022Applicant: UNIVERSITY OF TSUKUBAInventors: Aiki MARUSHIMA, Akira MATSUMURA, Hiroki BUKAWA, Yuji MATSUMARU, Masao KODA, Hiroshi ISHIKAWA, Akihiro OHYAMA, Junko TOYOMURA, Shohei TAKAOKA, Yosuke SHIBAO, Miho WATANABE, Tetsuya ABE
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Publication number: 20210082954Abstract: A semiconductor memory device includes first and second wiring layers above a semiconductor substrate, a memory pillar extending through the first and second wiring layers, a first plug contacting the first wiring layer, a second plug contacting the second wiring layer, a first pillar adjacent to the first plug and extending through the first wiring layer, and a second pillar adjacent to the second plug and extending through the first and second wiring layers. The memory pillar includes a first semiconductor layer, a second semiconductor layer over the first semiconductor layer, and a third insulating layer, a charge storage layer, and a fourth insulating layer on a side surface of the second semiconductor layer. The distance between the center of the first plug and the center of the first pillar is greater than the distance between the center of the second plug and the center of the second pillar.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Yusuke NAKANISHI, Takaya YAMANAKA, Akira MATSUMURA
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Patent number: 10870661Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.Type: GrantFiled: October 28, 2019Date of Patent: December 22, 2020Assignee: Shionogi & Co., Ltd.Inventors: Yoshinori Tamura, Shuichi Sugiyama, Akira Matsumura, Toshiyuki Akiyama, Yutaka Tomida
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Publication number: 20200212066Abstract: A semiconductor memory device includes first and second wiring layers above a semiconductor substrate, a memory pillar extending through the first and second wiring layers, a first plug contacting the first wiring layer, a second plug contacting the second wiring layer, a first pillar adjacent to the first plug and extending through the first wiring layer, and a second pillar adjacent to the second plug and extending through the first and second wiring layers. The memory pillar includes a first semiconductor layer, a second semiconductor layer over the first semiconductor layer, and a third insulating layer, a charge storage layer, and a fourth insulating layer on a side surface of the second semiconductor layer. The distance between the center of the first plug and the center of the first pillar is greater than the distance between the center of the second plug and the center of the second pillar.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Yusuke NAKANISHI, Takaya YAMANAKA, Akira MATSUMURA
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Patent number: 10600803Abstract: A semiconductor memory device includes first and second wiring layers above a semiconductor substrate, a memory pillar extending through the first and second wiring layers, a first plug contacting the first wiring layer, a second plug contacting the second wiring layer, a first pillar adjacent to the first plug and extending through the first wiring layer, and a second pillar adjacent to the second plug and extending through the first and second wiring layers. The memory pillar includes a first semiconductor layer, a second semiconductor layer over the first semiconductor layer, and a third insulating layer, a charge storage layer, and a fourth insulating layer on a side surface of the second semiconductor layer. The distance between the center of the first plug and the center of the first pillar is greater than the distance between the center of the second plug and the center of the second pillar.Type: GrantFiled: September 3, 2018Date of Patent: March 24, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventors: Yusuke Nakanishi, Takaya Yamanaka, Akira Matsumura
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Publication number: 20200055873Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Applicant: Shionogi & Co., Ltd.Inventors: Yoshinori Tamura, Shuichi Sugiyama, Akira Matsumura, Toshiyuki Akiyama, Yutaka Tomida
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Patent number: 10494380Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.Type: GrantFiled: May 27, 2016Date of Patent: December 3, 2019Assignee: Shionogi & Co., Ltd.Inventors: Yoshinori Tamura, Shuichi Sugiyama, Akira Matsumura, Toshiyuki Akiyama, Yutaka Tomida
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Publication number: 20190198523Abstract: A semiconductor memory device includes first and second wiring layers above a semiconductor substrate, a memory pillar extending through the first and second wiring layers, a first plug contacting the first wiring layer, a second plug contacting the second wiring layer, a first pillar adjacent to the first plug and extending through the first wiring layer, and a second pillar adjacent to the second plug and extending through the first and second wiring layers. The memory pillar includes a first semiconductor layer, a second semiconductor layer over the first semiconductor layer, and a third insulating layer, a charge storage layer, and a fourth insulating layer on a side surface of the second semiconductor layer. The distance between the center of the first plug and the center of the first pillar is greater than the distance between the center of the second plug and the center of the second pillar.Type: ApplicationFiled: September 3, 2018Publication date: June 27, 2019Inventors: Yusuke NAKANISHI, Takaya YAMANAKA, Akira MATSUMURA
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Publication number: 20190123055Abstract: A semiconductor memory device includes a substrate, a stacked body and a columnar part. The stacked body is provided above the substrate, and the columnar part is provided inside the stacked body. The stacked body includes a first stacked body including first electrode layers stacked in a first direction, and the second stacked body including second electrode layers stacked in the first direction, and a third electrode layer between the first stacked body and the second stacked body. The columnar part includes a first columnar part inside the first stacked body, a second columnar part inside the second stacked body, and a linking portion between the first and second columnar parts. The linking portion includes a first portion having a first thickness in a second direction crossing the first direction. The first thickness is wider than a thickness in the second direction of other portion in the linking portion.Type: ApplicationFiled: September 14, 2018Publication date: April 25, 2019Applicant: TOSHIBA MEMORY CORPORATIONInventor: Akira Matsumura
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Patent number: 10224240Abstract: A first tier structure is provided by forming first memory openings through a first alternating stack of first insulating layers and first spacer layers, and by forming sacrificial memory opening fill structures in the first memory openings. A second tier structure is formed over the first tier structure by forming a second alternating stack of second insulating layers and second spacer layers. Second memory openings are formed through the second tier structure in areas of the sacrificial memory opening fill structures. Distortion of the first tier structure and misalignment between the first and second memory openings is reduced or prevented by conducting thermal cycles at a lower temperature for the second tier structure than for the first tier structure.Type: GrantFiled: June 27, 2017Date of Patent: March 5, 2019Assignees: SANDISK TECHNOLOGIES LLC, TOSHIBA MEMORY CORPORATIONInventors: Kota Funayama, Masayuki Fukai, Takaya Yamanaka, Masaki Tsuji, Akira Matsumura
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Publication number: 20180162876Abstract: The present invention provides a novel compound having antiviral activity, especially HIV replication inhibitory activity and a medicament containing the same. The compound represented by the formula: wherein A3 is CR3A, CR3AR3B, N or NR3C; R3A, R3B, R4A and R4B are each independently a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted non-aromatic carbocyclyl; R3C is a hydrogen atom, substituted or unsubstituted alkyl, or substituted or unsubstituted non-aromatic carbocyclyl; ring T1 is substituted or unsubstituted nitrogen-containing non-aromatic heterocycle; R1 is a hydrogen atom, halogen, cyano, or substituted or unsubstituted alkyl; R2 is each independently substituted or unsubstituted alkyl or the like: n is 1 or 2; R3 is substituted or unsubstituted aromatic carbocyclyl or the like; R4 is a hydrogen atom or a carboxy protecting group.Type: ApplicationFiled: May 27, 2016Publication date: June 14, 2018Applicant: Shionogi & Co., Ltd.Inventors: Yoshinori TAMURA, Takashi KAWASUJI, Shuichi SUGIYAMA, Akira MATSUMURA, Toshiyuki AKIYAMA, Yutaka TOMIDA
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Patent number: 9468688Abstract: The present invention provides a novel boron carrier compound that can be used for boron neutron capture therapy for cancer, and that can realize improvement in the efficiency of a Drug Delivery System (DDS) and an increase in the boron concentration in a tumor. The present invention provides a boron cluster-modified PEG lipid derivative represented by Formula (I): wherein, m and n are each independently an integer of 1-4, q is an integer of 1-280, and R1 and R2 are each independently a hydrocarbon group with a carbon number of 8-22, and a molecular assembly containing the same.Type: GrantFiled: August 22, 2013Date of Patent: October 18, 2016Assignee: UNIVERSITY OF TSUKUBAInventors: Akira Matsumura, Kei Nakai, Makoto Shirakawa
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Publication number: 20160159785Abstract: The invention relates to Substituted-Quinoxaline-Type Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound.Type: ApplicationFiled: February 11, 2016Publication date: June 9, 2016Inventors: Kouki FUCHINO, R. Richard Goehring, Akira Matsumura, Bin Shao, Yoshiyuki Taoda, Naoki Tsuno, John William Frank Whitehead, Jiangchao Yao
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Patent number: 9278967Abstract: The invention relates to Substituted-Quinoxaline-Type Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound.Type: GrantFiled: July 14, 2014Date of Patent: March 8, 2016Assignees: Purdue Pharma L.P., Shionogi & Co., Ltd.Inventors: Kouki Fuchino, R. Richard Goehring, Akira Matsumura, Bin Shao, Yoshiyuki Taoda, Naoki Tsuno, John William Frank Whitehead, Jiangchao Yao
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Publication number: 20150246938Abstract: The object of the present invention is to provide novel compounds having ACC2 inhibiting activity. In addition, the object of the present invention is to provide a pharmaceutical composition comprising the compound. A compound of formula (I?): wherein R1 is substituted or unsubstituted aryl etc., R2 is each independently hydrogen, substituted or unsubstituted alkyl etc., R3 is each independently hydrogen, substituted or unsubstituted alkyl etc., n is an integer from 0 to 3, R12 is hydrogen, substituted or unsubstituted alkyl etc., Ring A is aromatic carbocycle or aromatic heterocycle, R9 is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl etc., m is an integer from 0 to 4, R4 and R5 is each independently hydrogen, substituted or unsubstituted alkyl etc., R6 is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl etc., R13 is hydrogen, substituted or unsubstituted alkyl etc., X5 is bond etc.Type: ApplicationFiled: September 7, 2012Publication date: September 3, 2015Applicant: SHIONOGI & CO., LTD.Inventors: Akira Matsumura, Naotake Kobayashi, Yuji Nishiura, Sachie Tagashira, Shiro Kida, Kana Kurahashi, Mitsuhiro Yonehara
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Publication number: 20150238622Abstract: The present invention provides a novel boron carrier compound that can be used for boron neutron capture therapy for cancer, and that can realize improvement in the efficiency of a Drug Delivery System (DDS) and an increase in the boron concentration in a tumor. The present invention provides a boron cluster-modified PEG lipid derivative represented by Formula (I): wherein, m and n are each independently an integer of 1-4, q is an integer of 1-280, and R1 and R2 are each independently a hydrocarbon group with a carbon number of 8-22, and a molecular assembly containing the same.Type: ApplicationFiled: August 22, 2013Publication date: August 27, 2015Applicant: UNIVERSITY OF TSUKUBAInventors: Akira Matsumura, Kei Nakai, Makoto Shirakawa
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Publication number: 20150141643Abstract: The invention relates to Substituted-Quinoxaline-Type Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Piperidine Compound.Type: ApplicationFiled: July 14, 2014Publication date: May 21, 2015Inventors: Kouki FUCHINO, R. Richard GOEHRING, Akira MATSUMURA, Bin SHAO, Yoshiyuki TAODA, Naoki TSUNO, John William Frank WHITEHEAD, Jiangchao YAO
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Patent number: 8980241Abstract: A method of covalently bonding a cyclic nitroxide radical compound to a hydrophobic block of a specific hydrophylic-phobic block copolymer, and polymerized cyclic nitroxide radical compound copolymerized in this manner, as well as use of such a compound, for instance, in the medical field are provided. The compound demonstrates long term stability in vivo under reductive environment.Type: GrantFiled: December 4, 2008Date of Patent: March 17, 2015Assignee: University of TsukubaInventors: Yukio Nagasaki, Toru Yoshitomi, Hirofumi Matsui, Aki Hirayama, Takashi Mamiya, Akira Matsumura, Kensuke Suzuki, Hideo Tsurushima, Aiki Marushima, Kazuko Toh, Daisuke Miyamoto