Patents by Inventor Kenta Iwai
Kenta Iwai 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: 20240112838Abstract: A method of producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method including stirring a slurry containing a raw material SmFeN-based anisotropic magnetic powder, water, a phosphate source, and an aluminum source to obtain a SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Applicant: NICHIA CORPORATIONInventors: Masahiro ABE, Shuichi TADA, Satoshi YAMANAKA, Kenta IWAI
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Patent number: 11936078Abstract: The purpose of the present invention is to provide fuel cell system capable of stable start-up and method for starting the fuel cell system. Fuel cell system includes SOFC, a turbocharger, oxidizing gas supply line, a control valve, oxidizing gas blow line, start-up air line for supplying the start-up air to the oxidizing gas supply line with a blower, and a control unit that, in state in which the control valve is closed and the blow valve is opened to supply the start-up air to the oxidizing gas supply line with the blower when the turbocharger is started, decreases the opening of the blow valve and, after the timing at which the opening of the blow valve starts to decrease, increases the opening of the control valve and then stops the supply of the starting air.Type: GrantFiled: January 27, 2021Date of Patent: March 19, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroyuki Ozawa, Yasushi Iwai, Kimi Kodo, Kenta Araki
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Publication number: 20240006101Abstract: A method for producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method includes a phosphate treatment of adding an inorganic acid to a slurry containing an SmFeN-based anisotropic magnetic powder, water, and a phosphate compound to adjust a pH of the slurry to a range of 1 to 4.5 to form a phosphate-coated SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate.Type: ApplicationFiled: September 30, 2021Publication date: January 4, 2024Applicant: NICHIA CORPORATIONInventors: Masahiro ABE, Satoshi YAMANAKA, Shuichi TADA, Kenta IWAI, Takayuki YANO
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Publication number: 20230415227Abstract: A method for producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method includes: a phosphate treatment of adding an inorganic acid to a slurry containing an SmFeN-based anisotropic magnetic powder, water, and a phosphate compound to adjust a pH of the slurry to a range from 1 to 4.5 to form an SmFeN-based anisotropic magnetic powder having a surface on which a phosphate coating is formed; and oxidizing by heat treating the SmFeN-based anisotropic magnetic powder having the surface on which the phosphate coating is formed, in an oxygen-containing atmosphere at a temperature in a range of 200° C. to 330° C., to form the phosphate-coated SmFeN-based anisotropic magnetic powder.Type: ApplicationFiled: September 30, 2021Publication date: December 28, 2023Applicant: NICHIA CORPORATIONInventors: Masahiro ABE, Satoshi YAMANAKA, Shuichi TADA, Kenta IWAI
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Patent number: 11806673Abstract: The present invention relates to a method of filtering an oil, the method including the following steps (A) and (B): (A) allowing a hydrophobic gas to permeate through a porous membrane including a hydrophobic polymer as a main component; and (B) allowing an oil to permeate through the porous membrane, in which the step (B) is performed after the hydrophobic gas that has permeated through the porous membrane is confirmed to have a relative humidity of 0 to 60% in the step (A).Type: GrantFiled: January 25, 2021Date of Patent: November 7, 2023Assignee: Toray Industries, Inc.Inventors: Shun Shimura, Masayuki Hanakawa, Kenta Iwai
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Publication number: 20230207166Abstract: A method of producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method including performing a phosphate treatment including adding an inorganic acid to a slurry containing a raw material SmFeN-based anisotropic magnetic powder, water, a phosphate compound, and a rare earth compound so that the slurry is adjusted to have a pH of at least 1 and not higher than 4.5 to obtain a phosphate-coated SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate.Type: ApplicationFiled: December 27, 2022Publication date: June 29, 2023Applicant: NICHIA CORPORATIONInventors: Masahiro Abe, Satoshi Yamanaka, Shuichi Tada, Kenta Iwai
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Publication number: 20230046432Abstract: The present invention relates to a method of filtering an oil, the method including the following steps (A) and (B): (A) allowing a hydrophobic gas to permeate through a porous membrane including a hydrophobic polymer as a main component; and (B) allowing an oil to permeate through the porous membrane, in which the step (B) is performed after the hydrophobic gas that has permeated through the porous membrane is confirmed to have a relative humidity of 0 to 60% in the step (A).Type: ApplicationFiled: January 25, 2021Publication date: February 16, 2023Applicant: Toray Industries, Inc.Inventors: Shun Shimura, Masayuki Hanakawa, Kenta Iwai
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Publication number: 20220157520Abstract: A method of producing a compound for bonded magnets, the method including: heat-curing a thermosetting resin and a curing agent having a ratio of the number of reactive groups of the curing agent to the number of reactive groups of the thermosetting resin of at least 2 but not higher than 11 to obtain an additive for bonded magnets; and kneading the additive for bonded magnets, magnetic powder, and a thermoplastic resin to obtain a compound for bonded magnets in which a filling ratio of the magnetic powder is at least 91.5% by mass.Type: ApplicationFiled: November 16, 2021Publication date: May 19, 2022Applicant: NICHIA CORPORATIONInventors: Satoshi YAMANAKA, Takayuki YANO, Shuichi TADA, Masahiro ABE, Kenta IWAI
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Publication number: 20220056235Abstract: The present invention relates to a porous membrane including a polymer including a polyvinylidene fluoride-based resin as a main component, and a branched polyvinylidene fluoride-based resin as the polyvinylidene fluoride-based resin, in which the polymer has a value of a of 0.32 to 0.41 and a value of b of 0.18 to 0.42, each of which is determined by approximation according to the formula 1 below from a radius of gyration <S2>1/2 and an absolute molecular weight Mw of the polymer which are measured by GPC-MALS (gel permeation chromatograph equipped with a multi-angle light scattering detector).Type: ApplicationFiled: December 24, 2019Publication date: February 24, 2022Applicant: Toray Industries, Inc.Inventors: Shun Shimura, Masayuki Hanakawa, Kenta Iwai, Takaaki Yasuda
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Patent number: 11235989Abstract: The present invention relates to a composite porous hollow-fiber membrane including a first layer and a second layer which each include a fluororesin-based polymer, in which at least a part of molecular chains of the fluororesin-based polymer is oriented in a longitudinal direction of the composite porous hollow-fiber membrane, the molecular chains of the fluororesin-based polymer have a degree of orientation it in the longitudinal direction of the composite porous hollow-fiber membrane of 0.4 or higher but less than 1.0, the degree of orientation it being calculated with the specific formula.Type: GrantFiled: June 23, 2017Date of Patent: February 1, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Shun Shimura, Masayuki Hanakawa, Kenta Iwai, Tamotsu Kitade, Masahiro Kimura
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Patent number: 11141698Abstract: The present invention provides a hollow fiber membrane module that can effectively resolve the accumulation of suspended solids within the membrane module, lower running costs, and also operate stably. The present invention relates to a hollow fiber membrane molecule provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated within the cylindrical case; and a first potting part accommodated within the cylindrical case and attaching the plurality of hollow fiber membranes together such that the end parts of the plurality of hollow membrane fibers at a first end side of the cylindrical case are open. The hollow fiber membranes are porous hollow fiber membranes having a breaking strength of 23 MPa, and the hollow membrane module has a membrane area per unit volume of 800-3700 m2/m3. The filling fraction for the hollow fiber membranes in a cross-section orthogonal to the direction of height of the cylindrical case is 25-38%.Type: GrantFiled: December 26, 2016Date of Patent: October 12, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Shun Shimura, Kenta Iwai, Masayuki Hanakawa, Tamotsu Kitade, Masahiro Kimura, Atsushi Kobayashi, Aya Nishio
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Patent number: 11077407Abstract: The porous hollow-fiber membrane of the present invention comprises a fluororesin polymer, and has columnar structures oriented in the longitudinal direction thereof. In the porous hollow-fiber membrane, molecular chains of the fluororesin polymer have been oriented in the longitudinal direction of the porous hollow-fiber membrane and have an average value ? of Raman orientation parameter of 1.5-4.0.Type: GrantFiled: May 30, 2017Date of Patent: August 3, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Kenta Iwai, Masayuki Hanakawa, Tamotsu Kitade, Masahiro Kimura, Toshiyuki Ishizaki
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Patent number: 11058996Abstract: An object of the present invention is to provide a porous hollow-fiber membrane satisfying both high strength and high pure-water permeation performance and at the same time, having high bending resistance. The present invention relates to a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane and when a photograph of a cross-section parallel to the longitudinal direction of the porous hollow-fiber membrane is binarized into a structure portion and a void portion, the following 1) and 2) are satisfied: 1) a proportion of an area of the void portion is from 20 to 50%, and 2) a value obtained by dividing a total of peripheral lengths of the void portions by a total of areas of the void portions is 2.0 ?m?1 or less.Type: GrantFiled: February 24, 2017Date of Patent: July 13, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Takaaki Yasuda, Masayuki Hanakawa, Kenta Iwai, Toshiyuki Ishizaki
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Patent number: 11020709Abstract: The present invention relates to a composite porous hollow-fiber membrane including a first layer and a second layer which each include a fluororesin-based polymer, in which the first layer has a columnar texture oriented in a longitudinal direction of the composite porous hollow-fiber membrane, the columnar texture has an average value v of a Raman orientation parameter calculated with the specific formula, and the second layer has a three-dimensional network texture and has an average surface-pore diameter of 5.0 nm to 5.0 ?m.Type: GrantFiled: June 23, 2017Date of Patent: June 1, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Shun Shimura, Kenta Iwai, Masayuki Hanakawa, Tamotsu Kitade, Masahiro Kimura
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Patent number: 10974199Abstract: This hollow fiber membrane module is provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated in the cylindrical case; and a first potting unit attaching the end parts of the plurality of hollow fiber membranes positioned at the first end of the cylindrical case while the end parts are open. The hollow fiber membranes have a rupture strength of 23 MPa or more. The filling rate for the hollow fiber membranes is 40-80%.Type: GrantFiled: May 30, 2017Date of Patent: April 13, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Atsushi Kobayashi, Kenta Iwai, Masayuki Hanakawa, Tamotsu Kitade, Masahiro Kimura
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Patent number: 10766007Abstract: The present invention provides a hollow fiber membrane module that can effectively resolve the accumulation of suspended solids within the membrane module, lower running costs, and also operate stably. The present invention relates to a hollow fiber membrane molecule provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated within the cylindrical case; and a first potting part accommodated within the cylindrical case and attaching the plurality of hollow fiber membranes together such that the end parts of the plurality of hollow membrane fibers at a first end side of the cylindrical case are open. The hollow fiber membranes are porous hollow fiber membranes having a breaking strength of 23 MPa, and the hollow membrane module has a membrane area per unit volume of 800-3700 m2/m3. The filling fraction for the hollow fiber membranes in a cross-section orthogonal to the direction of height of the cylindrical case is 25-38%.Type: GrantFiled: December 26, 2016Date of Patent: September 8, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Shun Shimura, Kenta Iwai, Masayuki Hanakawa, Tamotsu Kitade, Masahiro Kimura, Atsushi Kobayashi, Aya Nishio
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Publication number: 20200246756Abstract: The porous hollow-fiber membrane of the present invention comprises a fluororesin polymer, and has columnar structures oriented in the longitudinal direction thereof. In the porous hollow-fiber membrane, molecular chains of the fluororesin polymer have been oriented in the longitudinal direction of the porous hollow-fiber membrane and have an average value ? of Raman orientation parameter of 1.5-4.0.Type: ApplicationFiled: May 30, 2017Publication date: August 6, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Kenta IWAI, Masayuki HANAKAWA, Tamotsu KITADE, Masahiro KIMURA, Toshiyuki ISHIZAKI
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Patent number: 10702834Abstract: An object of the present invention is to provide a separation membrane having high mechanical strength and being less likely to cause clogging and capable of continuously maintaining high water permeation performance. The present invention relates to a separation membrane characterized in that the average diameter D1 of a spherical structure in a region within 10 ?m from a first surface in a separation membrane having a spherical structure layer formed of a thermoplastic resin and the average diameter D2 of a spherical structure in a region of 10 ?m to 20 ?m from a second surface satisfy the relational expression of D1>D2 and the average diameter D1 and the average diameter D3 of a spherical structure in a third region satisfy the relational expression of 1.10<D1/D3<4.00.Type: GrantFiled: July 7, 2015Date of Patent: July 7, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Kenta Iwai, Toshiyuki Ishizaki, Tamotsu Kitade, Kenji Komori, Masayuki Hanakawa
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Publication number: 20200206689Abstract: This hollow fiber membrane module is provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated in the cylindrical case; and a first potting unit attaching the end parts of the plurality of hollow fiber membranes positioned at the first end of the cylindrical case while the end parts are open. The hollow fiber membranes have a rupture strength of 23 MPa or more. The filling rate for the hollow fiber membranes is 40-80%.Type: ApplicationFiled: May 30, 2017Publication date: July 2, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Atsushi KOBAYASHI, Kenta IWAI, Masayuki HANAKAWA, Tamotsu KITADE, Masahiro KIMURA
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Patent number: 10505770Abstract: A signal processing device according to an embodiment includes a plurality of signal processing units and a pseudo signal generating unit. The plurality of signal processing units are provided in a plurality of reception antennas which receive reflection signals of a transmission signal reflected on an object, and perform signal processing in parallel on beat signals which are generated based on the transmission signal and the reflections signals. The pseudo signal generating unit generates a pseudo signal imitating the beat signal, and inputs the pseudo signal as a target of the signal processing into the plurality of signal processing units in parallel.Type: GrantFiled: August 11, 2015Date of Patent: December 10, 2019Assignees: FUJITSU TEN LIMITED, ASAHI KASEI MICRODEVICES CORPORATION, DENSO CORPORATIONInventors: Daisuke Enomoto, Kazuhiro Komatsu, Kenta Iwai, Takeshi Tanaka, Minoru Uehara, Tsuyoshi Sakakibara, Naoto Kusakawa, Hideki Kitagawa