Patents by Inventor Taiga Arai
Taiga Arai 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: 11685915Abstract: A method utilizes an aluminum oxide support with a water-soluble neutral polymer adsorbed on a surface of the aluminum oxide support and is aimed to collect nucleic acids from a body fluid sample. The method includes a step of adsorbing nucleic acids on the support in the presence of a chaotropic agent and a step of adding a solution containing an anionic surfactant to the nucleic acid-adsorbed support.Type: GrantFiled: December 26, 2018Date of Patent: June 27, 2023Assignee: Toray Industries, Inc.Inventors: Shota Sekiguchi, Taiga Arai, Masateru Itou
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Patent number: 11266672Abstract: The present invention provides a novel pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, a polynucleotide derived from various miRNAs associated with cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing cancer in a subject having the cancer using the pharmaceutical composition or the combination drug. The present invention relates to a pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, a polynucleotide comprising the nucleotide sequence as set forth in SEQ ID NO: 1, or a nucleotide sequence comprising a substitution of one nucleotide in the nucleotide sequence as set forth in SEQ ID NO: 1 (wherein when at least a part of the polynucleotide is DNA, uracil in a region corresponding to the DNA in the nucleotide sequence is replaced with thymine).Type: GrantFiled: January 27, 2017Date of Patent: March 8, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Atsuko Miyano, Hiroko Sudo, Aiko Takayama, Taiga Arai
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Patent number: 10980826Abstract: The present application provides a pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide derived from miRNA associated with the cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing a cancer in a subject having the cancer using the pharmaceutical composition or the combination drug.Type: GrantFiled: November 2, 2016Date of Patent: April 20, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Atsuko Miyano, Hiroko Sudo, Aiko Takayama, Taiga Arai
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Patent number: 10907155Abstract: It is an object of the present invention to specify miRNA associated with the treatment and/or prevention of various cancer species, from among various miRNAs associated with cancer, and to provide a novel pharmaceutical composition for treating and/or preventing cancer which targets the specified miRNA. According to the present invention, provided are a pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, an antisense polynucleotide shown as hsa-miR4454, a combination drug comprising the aforementioned pharmaceutical composition and another antitumor agent, and a method for treating and/or preventing cancer, using the above-described pharmaceutical composition or combination drug.Type: GrantFiled: August 9, 2017Date of Patent: February 2, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Atsuko Miyano, Aiko Takayama, Hiroko Sudo, Taiga Arai
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Publication number: 20200332277Abstract: A method utilizes an aluminum oxide support with a water-soluble neutral polymer adsorbed on a surface of the aluminum oxide support and is aimed to collect nucleic acids from a body fluid sample. The method includes a step of adsorbing nucleic acids on the support in the presence of a chaotropic agent and a step of adding a solution containing an anionic surfactant to the nucleic acid-adsorbed support.Type: ApplicationFiled: December 26, 2018Publication date: October 22, 2020Inventors: Shota Sekiguchi, Taiga Arai, Masateru Itou
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Patent number: 10689649Abstract: The present invention provides a novel pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide derived from various miRNAs associated with cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing a cancer in a subject having the cancer using the pharmaceutical composition or the combination drug. The present invention relates to a pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide comprising the nucleotide sequence as set forth in SEQ ID NO: 1 or 2 (wherein when at least a part of the polynucleotide is DNA, uracil in a region corresponding to the DNA in the nucleotide sequence is replaced with thymine).Type: GrantFiled: December 9, 2016Date of Patent: June 23, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Atsuko Miyano, Hiroko Sudo, Aiko Takayama, Taiga Arai
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Publication number: 20190216839Abstract: The present application provides a pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide derived from miRNA associated with the cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing a cancer in a subject having the cancer using the pharmaceutical composition or the combination drug.Type: ApplicationFiled: November 2, 2016Publication date: July 18, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Atsuko MIYANO, Hiroko SUDO, Aiko TAKAYAMA, Taiga ARAI
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Publication number: 20190169617Abstract: It is an object of the present invention to specify miRNA associated with the treatment and/or prevention of various cancer species, from among various miRNAs associated with cancer, and to provide a novel pharmaceutical composition for treating and/or preventing cancer which targets the specified miRNA. According to the present invention, provided are a pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, an antisense polynucleotide shown as hsa-miR4454, a combination drug comprising the aforementioned pharmaceutical composition and another antitumor agent, and a method for treating and/or preventing cancer, using the above-described pharmaceutical composition or combination drug.Type: ApplicationFiled: August 9, 2017Publication date: June 6, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Atsuko MIYANO, Aiko TAKAYAMA, Hiroko SUDO, Taiga ARAI
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Publication number: 20190046551Abstract: The present invention provides a novel pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, a polynucleotide derived from various miRNAs associated with cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing cancer in a subject having the cancer using the pharmaceutical composition or the combination drug. The present invention relates to a pharmaceutical composition for treating and/or preventing cancer comprising, as an active ingredient, a polynucleotide comprising the nucleotide sequence as set forth in SEQ ID NO: 1, or a nucleotide sequence comprising a substitution of one nucleotide in the nucleotide sequence as set forth in SEQ ID NO: 1 (wherein when at least a part of the polynucleotide is DNA, uracil in a region corresponding to the DNA in the nucleotide sequence is replaced with thymine).Type: ApplicationFiled: January 27, 2017Publication date: February 14, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Atsuko MIYANO, Hiroko SUDO, Aiko TAKAYAMA, Taiga ARAI
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Publication number: 20180362981Abstract: The present invention provides a novel pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide derived from various miRNAs associated with cancer, a combination drug of the pharmaceutical composition and another antitumor agent, and a method for treating or preventing a cancer in a subject having the cancer using the pharmaceutical composition or the combination drug. The present invention relates to a pharmaceutical composition for treating and/or preventing a cancer comprising, as an active ingredient, a polynucleotide comprising the nucleotide sequence as set forth in SEQ ID NO: 1 or 2 (wherein when at least a part of the polynucleotide is DNA, uracil in a region corresponding to the DNA in the nucleotide sequence is replaced with thymine).Type: ApplicationFiled: December 9, 2016Publication date: December 20, 2018Applicant: TORAY INDUSTRIES, INC.Inventors: Atsuko MIYANO, Hiroko SUDO, Aiko TAKAYAMA, Taiga ARAI
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Patent number: 9991336Abstract: An anode electrode and a cathode electrode formed on a silicon semiconductor substrate, p-type layer formed next to the anode electrode, an n-type layer formed next to the cathode electrode by a V-group element being diffused, an n? layer formed between the p-type layer and the n-type layer, and an n-buffer layer formed between the n? layer and the n-type layer and containing oxygen are provided and an oxygen concentration in an area of a width of at least 30 ?m from a surface on a side of the n-type layer of the cathode electrode toward the anode electrode is set to 1×1017 cm?3 or more and also the oxygen concentration of the n? layer in a position in contact with the p-type layer is set to less than 3×1017 cm?3.Type: GrantFiled: September 5, 2017Date of Patent: June 5, 2018Assignee: Hitachi Power Semiconductor Device Ltd.Inventors: Masatoshi Wakagi, Taiga Arai, Mutsuhiro Mori, Tomoyasu Furukawa
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Publication number: 20180090564Abstract: An anode electrode and a cathode electrode formed on a silicon semiconductor substrate, p-type layer formed next to the anode electrode, an n-type layer formed next to the cathode electrode by a V-group element being diffused, an n? layer formed between the p-type layer and the n-type layer, and an n-buffer layer formed between the n? layer and the n-type layer and containing oxygen are provided and an oxygen concentration in an area of a width of at least 30 ?m from a surface on a side of the n-type layer of the cathode electrode toward the anode electrode is set to 1×1017 cm?3 or more and also the oxygen concentration of the n? layer in a position in contact with the p-type layer is set to less than 3×1017 cm?3.Type: ApplicationFiled: September 5, 2017Publication date: March 29, 2018Applicant: HITACHI POWER SEMICONDUCTOR DEVICE, LTD.Inventors: Masatoshi WAKAGI, Taiga ARAI, Mutsuhiro MORI, Tomoyasu FURUKAWA
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Publication number: 20170317075Abstract: A diode includes an anode electrode layer; a cathode electrode layer; a buffer layer of a first conductivity type formed between the anode electrode layer and the cathode electrode layer in a region extending to a location at a distance of 30 ?m or more from the cathode electrode layer; a first semiconductor layer of the first conductivity type formed in a region between the anode electrode layer and the cathode electrode layer, and being in contact with the buffer layer of the first conductivity type; and a second semiconductor layer of a second conductivity type formed in a region between the anode electrode layer and the first semiconductor layer of the first conductivity type. The carrier concentration in the first semiconductor layer is lower than the carrier concentration in the buffer layer. The carrier concentration in the buffer layer is less than 1×1015 cm?3.Type: ApplicationFiled: April 24, 2017Publication date: November 2, 2017Inventors: Taiga ARAI, Masatoshi WAKAGI, Tetsuya ISHIMARU, Mutsuhiro MORI
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Patent number: 8809903Abstract: A semiconductor device provides a gate electrode formed on a lateral face of a wide trench, and thereby the gate electrode is covered by a gate insulating layer and a thick insulating layer to be an inter layer. Therefore, a parasitic capacitance of the gate becomes small, and there is no potential variation of the gate since there is no floating p-layer so that a controllability of the dv/dt can be improved. In addition, the conductive layer between the gate electrodes can relax the electric field applied to the corner of the gate electrode. In consequence, compatibility of low loss and low noise and high reliability can be achieved.Type: GrantFiled: August 30, 2013Date of Patent: August 19, 2014Assignee: Hitachi, Ltd.Inventors: So Watanabe, Mutsuhiro Mori, Taiga Arai
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Publication number: 20140001512Abstract: A semiconductor device provides a gate electrode formed on a lateral face of a wide trench, and thereby the gate electrode is covered by a gate insulating layer and a thick insulating layer to be an inter layer. Therefore, a parasitic capacitance of the gate becomes small, and there is no potential variation of the gate since there is no floating p-layer so that a controllability of the dv/dt can be improved. In addition, the conductive layer between the gate electrodes can relax the electric field applied to the corner of the gate electrode. In consequence, compatibility of low loss and low noise and high reliability can be achieved.Type: ApplicationFiled: August 30, 2013Publication date: January 2, 2014Applicant: Hitachi, Ltd.Inventors: So WATANABE, Mutsuhiro MORI, Taiga ARAI
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Patent number: 8546847Abstract: A semiconductor device provides a gate electrode formed on a lateral face of a wide trench, and thereby the gate electrode is covered by a gate insulating layer and a thick insulating layer to be an inter layer. Therefore, a parasitic capacitance of the gate becomes small, and there is no potential variation of the gate since there is no floating p-layer so that a controllability of the dv/dt can be improved. In addition, the conductive layer between the gate electrodes can relax the electric field applied to the corner of the gate electrode. In consequence, compatibility of low loss and low noise and high reliability can be achieved.Type: GrantFiled: December 2, 2010Date of Patent: October 1, 2013Assignee: Hitachi, Ltd.Inventors: So Watanabe, Mutsuhiro Mori, Taiga Arai
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Patent number: 8120098Abstract: A semiconductor device which can avoid increase of a conduction loss of an IGBT, secure a low noise characteristic and also reduce a switch loss. The switching device is of a trench gate type, in which a drift n? layer 110 is exposed to its main surface to a floating p layer 126 and to trench gates. In other words, the floating p layer 126 is provided within the drift n? layer 110 to be spaced from the trench gates.Type: GrantFiled: August 7, 2009Date of Patent: February 21, 2012Assignee: Hitachi, Ltd.Inventors: Taiga Arai, Mutsuhiro Mori
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Publication number: 20110133718Abstract: A semiconductor device provides a gate electrode formed on a lateral face of a wide trench, and thereby the gate electrode is covered by a gate insulating layer and a thick insulating layer to be an inter layer. Therefore, a parasitic capacitance of the gate becomes small, and there is no potential variation of the gate since there is no floating p-layer so that a controllability of the dv/dt can be improved. In addition, the conductive layer between the gate electrodes can relax the electric field applied to the corner of the gate electrode. In consequence, compatibility of low loss and low noise and high reliability can be achieved.Type: ApplicationFiled: December 2, 2010Publication date: June 9, 2011Applicant: Hitachi, Ltd.Inventors: So WATANABE, Mutsuhiro Mori, Taiga Arai
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Patent number: 7948005Abstract: A fourth semiconductor region of a first conduction type is provided in a partial region of a third semiconductor region of a second conduction type. This configuration enhances the blocking voltage at the time when the sheet carrier concentration of a fifth semiconductor region is enhanced.Type: GrantFiled: May 15, 2008Date of Patent: May 24, 2011Assignee: Hitachi, Ltd.Inventors: Mutsuhiro Mori, Taiga Arai
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Patent number: 7875509Abstract: In a manufacturing method of a SOI type high withstand voltage semiconductor device formed on a support substrate via an insulation film, a small-sized semiconductor device having small dispersion of withstand voltage is manufactured by introducing impurities into the whole surface of a p-type or n-type SOI substrate having an impurity concentration of 2E14 cm?3 or less and serving as an active layer of the semiconductor device with an ion implantation method and thereby forming a drift layer.Type: GrantFiled: April 16, 2008Date of Patent: January 25, 2011Assignee: Hitachi, Ltd.Inventors: Junichi Sakano, Kenji Hara, Shinji Shirakawa, Taiga Arai, Mutsuhiro Mori