Patents Assigned to Tohoku University
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Patent number: 11964253Abstract: Provided is a production method for core-shell porous silica particles, the production method including: a preparation step of preparing an aqueous solution comprising non-porous silica particles, a cationic surfactant, a basic catalyst, an electrolyte, and an alcohol; a shell precursor formation step at adding a silica source to the aqueous solution to form a shell precursor on a surface of the non-porous silica particles; and a shell formation step of removing the cationic surfactant from the shell precursor to form a porous shell.Type: GrantFiled: June 17, 2019Date of Patent: April 23, 2024Assignees: TOHOKU UNIVERSITY, DAICEL CORPORATIONInventors: Daisuke Nagao, Haruyuki Ishii, Shunho Ishikawa
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Publication number: 20240124986Abstract: A method for producing an alkali metal/alkaline earth metal hydroxide includes: subjecting a solution containing RA—COOMB and/or (RA—COO)2MC and water to an electrochemical reaction to cause a Kolbe electrolysis reaction at an anode to generate at least RA—RA, carbon dioxide, and an MB+ ion and/or MC2+ ion; and neutralizing the MB+ ion and/or MC2+ ion by using an OH? ion generated by electrolysis of water at a cathode. RA represents a hydrocarbon group, MB represents an alkali metal, and MC represents an alkaline earth metal.Type: ApplicationFiled: February 21, 2022Publication date: April 18, 2024Applicant: TOHOKU UNIVERSITYInventors: Kousuke HIROMORI, Naomi KITAKAWA, Keisuke KATAGAMI
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Publication number: 20240123541Abstract: A structure according to an embodiment of the present disclosure include: a first base; a second base disposed to be opposed to the first base; and a bonding layer that is provided between the first base and the second base, and includes, in a layer, a layer including a first metal element and a second metal element, the first metal element having a free energy of oxide formation (?G) of ?330 (kJ/mol of compounds) or more at room temperature and a self-diffusion coefficient (D) of 1×10?55 (m2/s) or more at room temperature, and the second metal element having a free energy of oxide formation (?G) at room temperature smaller than the free energy of oxide formation (?G) at the room temperature of the first metal element.Type: ApplicationFiled: December 20, 2021Publication date: April 18, 2024Applicants: SONY GROUP CORPORATION, TOHOKU UNIVERSITYInventors: Shohei ABE, Yuichi TAKAHASHI, Takehito SHIMATSU, Miyuki UOMOTO
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Publication number: 20240123427Abstract: A method for producing core-shell porous silica particles including: a step of forming a shell precursor by continuously adding a silica source-containing liquid into an aqueous suspension containing non-porous silica particles, a cationic surfactant, a basic catalyst, and an alcohol under conditions that a pH of the reaction system is from 7 to 13 and a pH value change of the reaction system is 1.5/10 min to form a shell precursor on a surface of non-porous silica particles; and a step of forming a porous shell by removing the cationic surfactant from the shell precursor, to form a porous shell; wherein in the step of forming the shell precursor, when a specific surface area of the non-porous silica particles is Xm2/g, a used amount of the non-porous silica particles is Yg, and a used amount of the silica source is Zcm3, Z/(XY) being from 0.01 to 10.Type: ApplicationFiled: February 10, 2022Publication date: April 18, 2024Applicants: TOHOKU UNIVERSITY, DAICEL CORPORATIONInventors: Daisuke NAGAO, Keishi SUGA, Chinatsu YOSHIZAWA, Hiroakira DEN
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Patent number: 11959417Abstract: A gas turbine (A, B, C) is provided that includes at least a compressor (1), a combustor (2), and a turbine (3) and combusts ammonia serving as fuel in the combustor (2), including a reducing agent supply device (6) configured to supply a reducing agent for reducing nitrogen oxides in a combustion gas to at least one of: a combustion gas flow path between the combustor (2) and the turbine (3); and the turbine (3).Type: GrantFiled: September 25, 2020Date of Patent: April 16, 2024Assignee: TOHOKU UNIVERSITYInventor: Hisashi Nakamura
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Patent number: 11963458Abstract: Provided are a magnetic tunnel junction dement suppressing diffusion and penetration of constituent elements between a hard mask film, and a magnetic tunnel junction film and a protection layer, and a method for manufacturing the magnetic tunnel junction element. The magnetic tunnel junction element has a configuration in which a non-magnetic insertion layer (7) including Ta or the like is inserted beneath a hard mask layer (8).Type: GrantFiled: March 11, 2019Date of Patent: April 16, 2024Assignee: TOHOKU UNIVERSITYInventors: Koichi Nishioka, Tetsuo Endoh, Shoji Ikeda, Hiroaki Honjo, Hideo Sato, Sadahiko Miura
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Patent number: 11959161Abstract: A copper-based alloy material including a multiphase structure containing a matrix of a ? phase and a precipitation phase of a B2-type crystal structure dispersed in the matrix, where the copper-based alloy material includes a composition containing 8.6 to 12.6% by mass of Al, 2.9 to 8.9% by mass of Mn, 3.2 to 10.0% by mass of Ni, and Cu.Type: GrantFiled: August 30, 2019Date of Patent: April 16, 2024Assignees: FURUKAWA TECHNO MATERIAL CO., LTD., TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.Inventors: Sumio Kise, Fumiyoshi Yamashita, Misato Fujii, Koji Ishikawa, Ryosuke Kainuma, Toshihiro Omori, Nobuyasu Matsumoto
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Patent number: 11954546Abstract: Provided is a structure for individual authentication in which a pillar pattern region including a plurality of nanopillars formed of synthetic quartz glass is formed on at least a part of a surface portion of a synthetic quartz glass substrate. In the pillar pattern region, the nanopillars have an indentation elastic modulus of 35 to 100 GPa as measured by a nanoindentation method, and the nanopillars are plastically deformed.Type: GrantFiled: May 25, 2021Date of Patent: April 9, 2024Assignees: SHIN-ETSU CHEMICAL CO., LTD., TOHOKU UNIVERSITYInventors: Masao Ando, Hiroyuki Yamazaki, Masaki Takeuchi, Masaru Nakagawa, Shunya Ito
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Patent number: 11952508Abstract: Provided are ITO particles having a non-rectangular parallelepiped shape and an aligned crystal orientation inside particles.Type: GrantFiled: July 14, 2020Date of Patent: April 9, 2024Assignees: TOHOKU UNIVERSITY, NIKON CORPORATIONInventors: Atsushi Muramatsu, Kiyoshi Kanie, Ryoko Suzuki
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Publication number: 20240111181Abstract: An object of the present invention is to provide an optical switch element, an optical switch device, an optical communication system, and an optical computer capable of operating even in a temperature range higher than the Néel temperature. An optical switch element (10) according to the present invention includes a substance including a plurality of transition metal elements having electrons in d-orbitals, and a plurality of anions arranged around each of the plurality of transition metal elements, in which the plurality of transition metal elements are arranged in a lattice form, t2g-orbitals into which the d-orbitals of each of the plurality of transition metal elements are split are connected annularly, and in a state in which the substance does not have a long-range magnetic order, the polarization of signal light (L1) is rotated when control light (C1) is applied.Type: ApplicationFiled: December 2, 2021Publication date: April 4, 2024Applicants: TOHOKU UNIVERSITY, CHUO UNIVERSITYInventors: Shinichiro IWAI, Yohei KAWAKAMI, Tatsuya AMANO, Kenya OHGUSHI, Kenji YONEMITSU
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Patent number: 11946086Abstract: This invention is intended to identify a gene cluster involved in biosynthesis of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species and to establish a system for synthesizing such cyclic peptide compound. The gene is composed of a first module to a tenth module and encodes a protein having activity of synthesizing a nonribosomal peptide constituting a basic peptide backbone of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species.Type: GrantFiled: December 13, 2021Date of Patent: April 2, 2024Assignees: TOHOKU UNIVERSITY, KUMIAI CHEMICAL INDUSTRY CO., LTD.Inventors: Takashi Kubo, Masayuki Machida, Maiko Umemura, Keietsu Abe, Akira Yoshimi, Tomonori Fujioka, Shigenari Yamaguchi, Kiyoshi Kawai
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Patent number: 11944456Abstract: A ceramic guide device includes a columnar ceramic guide including a first portion including a first end, a second portion including a second end and having a smaller diameter than a diameter of the first portion, and a third portion disposed between the first portion and the second portion, the columnar ceramic guide provided with an insertion hole through which a long wire electrode can be inserted from the first end to the second end; and the long wire electrode that penetrates through the insertion hole, the long wire electrode including a first protruding portion projecting from the first end, and a second protruding portion projecting from the second end.Type: GrantFiled: January 31, 2019Date of Patent: April 2, 2024Assignees: KYOCERA Corporation, TOHOKU UNIVERSITYInventors: Daisuke Komada, Hajime Mushiake, Tomokazu Ohshiro
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Publication number: 20240100227Abstract: Provided is a novel device or a novel implantation device. The implantation device is one of the following: (1) an implantation device comprising a material (A) having a density of 12 mg/cm3 or more and a dissolution rate of 80% or less as determined after immersion of the material (A) in physiological saline at 37° C. for 24 hours; and (2) an implantation device comprising a material (A) having a dissolution rate of 80% or less as determined after immersion of the material (A) in physiological saline at 37° C. for 24 hours and a ratio of X/Y of 0.24 or more wherein X is a density (mg/cm3) of the material (A) and Y is a degree of swelling of the material (A) expressed in terms of fold increase as determined after immersion of the material (A) in physiological saline at 37° C. for 60 minutes.Type: ApplicationFiled: February 8, 2022Publication date: March 28, 2024Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITYInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Keita ISHIBA, Masafumi GOTO
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Patent number: 11940440Abstract: An electrochemical measurement method is provided in which a working electrode that causes an oxidation-reduction reaction with a measurement target and a counter electrode connected to the working electrode are provided in an electrolytic solution containing the measurement target, and a measuring voltage is applied between the working electrode and the counter electrode to measure a current that flows between the working electrode and the counter electrode in proportion to the amount of the measurement target, wherein an eliminating electrode is provided in the electrolytic solution, and the method performs: eliminating the measurement target by applying an eliminating voltage, which has the same polarity as the measuring voltage, between the eliminating electrode and the counter electrode to oxidize or reduce the measurement target; diffusing a new measurement target; and measuring the current by applying the measuring voltage between the working electrode and the counter electrode.Type: GrantFiled: April 26, 2021Date of Patent: March 26, 2024Assignees: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOHOKU UNIVERSITYInventors: Hiroyuki Hayashi, Ryota Kunikata, Atsushi Suda, Kosuke Ino, Kumi Inoue, Tomokazu Matsue
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Publication number: 20240091404Abstract: Provided is a novel device (implantation device) containing a gelatin. The implantation device is made of a bioabsorbable non-woven fabric containing a gelatin.Type: ApplicationFiled: February 8, 2022Publication date: March 21, 2024Applicants: Shin-Etsu Chemical Co., Ltd., JAPAN VAM & POVAL CO., LTD., TOHOKU UNIVERSITY, KYOTO MEDICAL PLANNING Co., LtdInventors: Shuhei KANESATO, Yoshihiro KIMURA, Akinobu OHARUDA, Masafumi GOTO
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Patent number: 11932773Abstract: Provided are a coated particle that enables particles with low surface free energy to be dispersed in an aqueous solvent without using a fluorochemical surfactant, a dispersion solution, a dispersion method of coated particles, a coating film, a manufacturing method of a coating film, and a copolymer. A coated particle has: a particle with surface free energy of 50 mJ/m2 or less; and a copolymer in which a monomer including a hydrophilic group except for catechol groups and a monomer including at least a catechol group are copolymerized, and the particle is coated with the copolymer.Type: GrantFiled: July 23, 2021Date of Patent: March 19, 2024Assignee: TOHOKU UNIVERSITYInventor: Hiroshi Yabu
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Patent number: 11927517Abstract: A resonance shear measurement device (1) of the present invention includes an upper unit (10) having a piezoelectric element (15), an upper disk substrate (16), and a spring (17), and a lower unit (11) having a lower disk substrate (14), in which a sample insertion portion (21) is formed between a lower surface of the upper disk substrate (16) and an upper surface of the lower disk substrate (14), the piezoelectric element (15) and the upper disk substrate (16) are vibratably connected to a fixed apparatus 30 via the spring (17), a strain gauge (19) is attached to the spring (17), and by applying an AC voltage to the piezoelectric element (15) while changing a frequency of the AC voltage, a response voltage at the resonance from the strain gauge (19) due to a vibration of the upper unit (10) is measured.Type: GrantFiled: March 28, 2019Date of Patent: March 12, 2024Assignee: TOHOKU UNIVERSITYInventors: Kazue Kurihara, Masashi Mizukami, Motohiro Kasuya
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Patent number: 11929234Abstract: A plasma processing apparatus capable of improving the in-plane uniformity of plasma and a lower stage used for the plasma processing apparatus are anticipated. In an exemplary embodiment, the lower stage is for a lower stage that generates plasma with an upper electrode. The lower stage includes: a lower dielectric body formed of ceramic, a lower electrode embedded in the lower dielectric body, and a heating element embedded in the lower dielectric body. The separation distance between the top surface of the lower dielectric body at the outer edge position thereof and the lower electrode is smaller than the separation distance between the top surface of the lower dielectric body in the central region thereof and the lower electrode. The lower electrode has an inclination region inclined with respect to the top surface between the outer edge position and the central region.Type: GrantFiled: November 26, 2019Date of Patent: March 12, 2024Assignees: TOKYO ELECTRON LIMITED, TOHOKU UNIVERSITYInventors: Taro Ikeda, Sumi Tanaka, Satoru Kawakami, Masaki Hirayama
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Patent number: 11920180Abstract: The purpose of the present invention is to provide a cell creation method that enables a reduction in cost and time, that is highly safe, and that has great potential for being industrially applied. Provided by the present invention is a method for inducing differentiation of pluripotent cells in vitro into cells having a same phenotype and function as information-presentation cells, the method comprising co-culturing pluripotent cells or a cellular fraction having said pluripotent cells concentrated therein, together with damaged cells or dead cells derived from information-presentation cells, or together with a portion of the damaged cells or dead cells derived from information-presentation cells.Type: GrantFiled: August 3, 2017Date of Patent: March 5, 2024Assignee: TOHOKU UNIVERSITYInventor: Mari Dezawa
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Publication number: 20240071452Abstract: The present invention provides an access controller, and a data transfer method. The access controller controls accesses to the MRAM by reading data in advance and backing up the data when data is to be read from the MRAM.Type: ApplicationFiled: October 25, 2023Publication date: February 29, 2024Applicant: TOHOKU UNIVERSITYInventors: Masanori Natsui, Daisuke Suzuki, Akira Tamakoshi, Takahiro Hanyu, Tetsuo Endoh, Hideo Ohno