Patents Assigned to Yokohama National University
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Patent number: 11447396Abstract: Provided are the following: an MWW type zeolite which has many Brønsted acid sites when in the form of a proton type and which is highly suitable as a cracking catalyst for cumene; a method for producing same; and an application of same. The present invention provides an MWW type zeolite in which the ratio (B/A) of the peak intensity (B) attributable to tetracoordinate aluminum relative to the peak intensity (A) attributable to hexacoordinate aluminum is 2 or more in 27Al MAS NMR, when measured as an ammonium type. The present invention also provides a method for producing an MWW type zeolite, the method having a step for carrying out a hydrothermal synthesis reaction in the presence of: a seed crystal of an MWW type zeolite containing no organic structure-directing agent; and a reaction mixture containing a silica source, an alumina source, an alkali source, an organic structure-directing agent, and water. The reaction mixture satisfies the following molar ratio: X/SiO2<0.Type: GrantFiled: November 28, 2018Date of Patent: September 20, 2022Assignees: Mitsui Mining & Smelting Co., Ltd., NATIONAL UNIVERSITY CORPORATION TOTTORI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Yoshihiro Kamimura, Akira Endou, Yasuo Yamazaki, Naonobu Katada, Satoshi Suganuma, Yoshihiro Kubota, Satoshi Inagaki
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Patent number: 11449575Abstract: A solution search device includes a variable value calculation circuit provided for each variable in a conjunctive-normal-form logical expression of an instance of the Boolean Satisfiability problem (SAT) and calculates a value of the variable; and a notification path that notifies another variable value calculation circuit of the value, in which each of the variable value calculation circuit includes a positive-side variable value calculation circuit that calculates a value of a target variable making all clauses including a target variable having no negation among clauses of the logical expression be true, a negative-side variable value calculation circuit that calculates the value of the target variable making all clauses including a target variable having negation among clauses of the logical expression be true, and a current value calculation circuit that calculates the value of the target variable based on the value of the target variable calculated by the positive- side variable value calculation circuType: GrantFiled: July 19, 2018Date of Patent: September 20, 2022Assignee: National University Corporation Yokohama National UniversityInventors: Naoki Takeuchi, Masashi Aono
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Publication number: 20220289901Abstract: The present invention provides an epoxy resin having good heat resistance when formed into an epoxy resin cured product, and also provides an epoxy resin cured product an epoxy resin composition. The epoxy resin is represented by formula (1) below. In the formula (1), R1 to R12 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group, an aralkyloxy group, an aryloxy group, a nitro group, an amino group, an amide group, a carboxyl group, an alkyloxycarbonyl group, an aryloxycarbonyl group, a formyl group, a cyano group, an alkyl group, a cycloalkyl group, an aralkyl group, or an aryl group.Type: ApplicationFiled: September 8, 2020Publication date: September 15, 2022Applicants: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, DIC CorporationInventors: Toshiyuki Oyama, Yuichiro Tokoro, Seiryu Umetani
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Publication number: 20220255087Abstract: Provided is a novel oxygen reduction catalyst having good stability and higher oxygen reduction performance. The oxygen reduction catalyst includes a composite oxide comprising a conductive tin oxide containing Zr.Type: ApplicationFiled: June 9, 2020Publication date: August 11, 2022Applicant: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Akimitsu ISHIHARA, Takaaki NAGAI
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Publication number: 20220228113Abstract: Provided is a hair follicle germ capable of forming a hair shaft-like structure in vitro simply and within a short period of time. A method of producing a hair follicle germ includes: inoculating epithelial cells and mesenchymal cells; maintaining the epithelial cells and the mesenchymal cells in a culture solution in which (a) laminin and entactin, and/or (b) type IV collagen is dispersed; and co-culturing the epithelial cells and the mesenchymal cells in a culture solution to form a hair follicle germ.Type: ApplicationFiled: August 7, 2019Publication date: July 21, 2022Applicants: National University Corporation Yokohama National University, Kanagawa Institute of Industrial Science and TechnologyInventors: Junji Fukuda, Tatsuto Kageyama, Akihiro Shimizu, Rikuma Nakajima, Riki Anakama
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Patent number: 11390958Abstract: An object of the present invention is to provide an electrolysis technique such that the electrolysis performance is unlikely to be deteriorated, and excellent catalytic activity is retained stably over a long period of time even when electric power having a large output fluctuation, such as renewable energy, is used a power source, and this object is realized by an alkaline water electrolysis method, in which an electrolytic solution obtained by dispersing a catalyst containing a hybrid cobalt hydroxide nanosheet (Co-NS) being a composite of a metal hydroxide and an organic substance is supplied to an anode chamber and a cathode chamber that form an electrolytic cell, and the electrolytic solution is used for electrolysis in each chamber in common, and an alkaline water electrolysis anode.Type: GrantFiled: March 11, 2020Date of Patent: July 19, 2022Assignees: DE NORA PERMELEC LTD, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Shigenori Mitsushima, Yoshiyuki Kuroda, Takeshi Nishimoto
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Publication number: 20220127385Abstract: A radical polymerization method may use a compound having a polycyclic aromatic skeleton and an endoperoxide compound having a polycyclic aromatic skeleton. An endoperoxide compound may have a polycyclic aromatic skeleton of formula (1), and a compound may have a polycyclic aromatic skeleton, which is a raw material of the endoperoxide compound: wherein R is a C1-10 alkyl group, an alkoxymethyl group having a C1-5 alkoxy group, a C6-10 aryl group, an alkylcarbonyl group having a C1-10 alkyl group, an arylcarbonyl group having a C6-20 aryl group, an alkyloxycarbonyl group having a C1-10 alkyl group, an aryloxycarbonyl group having a C6-10 aryl group, an alkyloxycarbonylmethyl group having a C1-12 alkyl group or an aryloxycarbonylmethyl group having a C6-12 aryl group.Type: ApplicationFiled: February 12, 2019Publication date: April 28, 2022Applicants: Kawasaki Kasei Chemicals Ltd., National University Corporation YOKOHAMA National UniversityInventors: Shunichi HIMORI, Keita IUCHI, Akihiko YAMADA, Hiroaki GOTOH, Kazuhisa SAKAKIBARA
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Patent number: 11274176Abstract: A composite including a plurality of block copolymer chains dispersed in a base polymer, the block copolymer chains including a polymer block (A) and a polymer block (B) having lower affinity for the base polymer than that of the polymer block (A), wherein each of the block copolymer chains has the polymer block (A) at two or more locations of the block copolymer chain, and in at least some of the block copolymer chains, the polymer blocks (A) are at least partially located in the base polymer and the polymer blocks (B) are at least partially exposed from the base polymer.Type: GrantFiled: March 2, 2018Date of Patent: March 15, 2022Assignees: NATIONAL INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, KYOTO UNIVERSITY, NISSHINBO HOLDINGS INC.Inventors: Takaya Sato, Hiroyuki Arafune, Takashi Morinaga, Saika Honma, Toshio Kamijo, Ken Nakano, Yoshinobu Tsujii
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Publication number: 20220055872Abstract: A work vehicle includes: an operation tool that is operated by an operator; and a controller that determines a target flow rate for hydraulic oil fed to a hydraulic device on a basis of the amount of operation of the operation tool. The controller calculates a bleed-off target flow rate on a basis of the flow rate of hydraulic oil fed from a hydraulic oil pump and the target flow rate for hydraulic oil fed to the hydraulic device, calculates a bleed-off throttle differential pressure on a basis of a pressure of hydraulic oil fed from the hydraulic oil pump and a pressure of hydraulic oil in a hydraulic oil tank, calculates a bleed-off target opening area on a basis of the bleed-off target flow rate and the bleed-off throttle differential pressure, and controls a hydraulic oil control valve such that the bleed-off target opening area is achieved.Type: ApplicationFiled: February 21, 2020Publication date: February 24, 2022Applicants: TADANO LTD., National University Corporation YOKOHAMA National UniversityInventors: Kazushi SANADA, Kazuya TANIZUMI, Shinji NOGUCHI, Naoto KAWABUCHI
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Publication number: 20220056670Abstract: A transport vehicle management system includes: a three-dimensional data acquisition unit that acquires three-dimensional data of a work site; a two-dimensional course generation unit that generates a two-dimensional course for a transport vehicle on a two-dimensional plane set at the work site; and a three-dimensional course generation unit that generates a three-dimensional course of the transport vehicle from the two-dimensional course, based on the three-dimensional data.Type: ApplicationFiled: December 12, 2019Publication date: February 24, 2022Applicants: Komatsu Ltd., National University Corporation YOKOHAMA National UniversityInventors: Takashi Maekawa, Riku Usami, Yuji Kobashi
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Publication number: 20220041983Abstract: Provided are a hair follicle germ having excellent hair growth-related properties, a method of producing a hair follicle germ, and a method of activating cells contained in a hair follicle germ. The hair follicle germ includes: epithelial cells; mesenchymal cells; and mesenchymal stem cells. The method of producing a hair follicle germ includes co-culturing epithelial cells, mesenchymal cells, and mesenchymal stem cells to form a hair follicle germ.Type: ApplicationFiled: October 15, 2019Publication date: February 10, 2022Applicants: National University Corporation Yokohama National University, Kanagawa Institute of Industrial Science and TechnologyInventors: Junji Fukuda, Tatsuto Kageyama, Yoshiki Tate
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Patent number: 11236428Abstract: To provide an electrolysis cell for producing an organic chemical hydride capable of advancing a reduction reaction in a cathode of an organic compound having an unsaturated bond with high current efficiency and a small electric power consumption unit.Type: GrantFiled: September 18, 2015Date of Patent: February 1, 2022Assignees: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, DE NORA PERMELEC LTD.Inventors: Shigenori Mitsushima, Yasutomo Takakuwa, Yoshinori Nishiki, Akihiro Kato, Akiyoshi Manabe
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Patent number: 11215558Abstract: A nanostructure array including a base body and a nanostructure formed on the base body, in which a plurality of the nanostructures are arranged on the nanostructure array, the nanostructure is made of a metal having a surface plasmon and a property of absorbing and releasing hydrogen, the base body is made of a hydrogen-responsive material that reacts with hydrogen to reversibly change from a conductor to a dielectric substance, and a surface plasmon resonance occurs by light incident on the nanostructure.Type: GrantFiled: February 18, 2020Date of Patent: January 4, 2022Assignees: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, TOKYO OHKA KOGYO CO., LTD.Inventors: Yoshiaki Nishijima, Shinji Okazaki, Takaaki Beni, Naoki Yamasaku, Takeshi Iwai
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Patent number: 11189974Abstract: A connector system is provided with a first connector including a first transmission line, and a second connector including a second transmission line. The second connector includes a processing unit configured to perform an information transmission process of creating information regarding verification, and transmitting the information to the first connector. The first connector includes: a switch configured to, in a state where the first connector and the second connector are connected to each other, select whether or not to electrically connect the first transmission line and the second transmission line to each other; a verification unit configured to perform a verification process of verifying the second connector, based on the information received from the second connector; and a control unit configured to control the switch, based on a result of the verification process.Type: GrantFiled: November 30, 2018Date of Patent: November 30, 2021Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Yoshikazu Isoyama, Yoichi Hata, Tsutomu Matsumoto
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Patent number: 11181170Abstract: A planetary gear device configured by combining a plurality of planetary gear mechanisms includes first and second planetary gear mechanisms sharing a carrier, wherein each planetary gear mechanism is composed of an internal gear Ik (k is an integer equal to or larger than 2) and a planetary gear Pk which is engaged with the internal gear Ik and revolves in a circumferential direction of the internal gear, the planetary gear Pk of each planetary gear mechanism is composed of a spur gear in the form of an external gear, the planetary gears Pk of the planetary gear mechanisms share a central axis or have central axes integrally connected to integrally rotate on a common rotation central axis line or are integrated with each other to integrally rotate on the common rotation central axis line in order to configure the entire planetary gear device as a two-stage gear mechanism, the planetary gear device is configured such that the number of teeth zp1 of a first planetary gear constituting the first planetary gearType: GrantFiled: June 6, 2017Date of Patent: November 23, 2021Assignee: National University Corporation Yokohama National UniversityInventors: Yasutaka Fujimoto, Daiji Kobuse
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Patent number: 11178493Abstract: An electroacoustic transducer includes: a diaphragm; a magnetic circuit having a magnetic gap; a frame that holds the diaphragm and the magnetic circuit; a voice coil having one end portion positioned within the magnetic gap and the other end portion coupled to the diaphragm; and a low friction material that is disposed in a sliding portion formed by the voice coil and the magnetic circuit, and includes polymer compounds swollen with liquid.Type: GrantFiled: March 26, 2020Date of Patent: November 16, 2021Assignees: Panasonic Corporation, KYOTO UNIVERSITY, National University Corporation YOKOHAMA National UniversityInventors: Hidetoshi Hiraoka, Yoshinobu Tsujii, Keita Sakakibara, Ken Nakano
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Patent number: 11168170Abstract: A clearance narrowing material containing a brush-shaped polymer chain aggregate formed of multiple polymer chains immobilized on a substrate. The invention provides a clearance narrowing material which can effectively prevent fluid leakage through a clearance and which does not disturb relative movement of members to form a clearance, and can realize an article in which fluid leakage through a clearance can be effectively prevented and the members to form a clearance can move smoothly.Type: GrantFiled: April 25, 2018Date of Patent: November 9, 2021Assignees: KYOTO UNIVERSITY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, NATIONAL INSTITUTE OF TECHNOLOGYInventors: Chiharu Tadokoro, Takuo Nagamine, Yoshinobu Tsujii, Keita Sakakibara, Ken Nakano, Hitoshi Hattori, Shinya Sasaki, Takaya Sato
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Patent number: 11142464Abstract: Provided is a beta zeolite also having exceptional catalytic activity as a catalyst other than an olefin epoxidation catalyst. This beta zeolite is synthesized without using an organic structure-directing agent and has titanium in the structural skeleton thereof, the Ti content being 0.10 mmol/g or higher. This beta zeolite preferably has an Si/Ti molar ratio of 20-200. Also, the Si/Al molar ratio is preferably 100 or higher.Type: GrantFiled: October 25, 2018Date of Patent: October 12, 2021Assignees: Mitsui Mining & Smelting Co., Ltd., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Yoshihiro Kubota, Satoshi Inagaki, Yuya Ikehara, Mei Takeyama, Yasuo Yamazaki
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Patent number: 11145120Abstract: A surface generation device includes: a profile curve setting unit 2 configured to set a profile curve fitted to a part of shape data, a profile curve movement unit 3 configured to move the profile curve so as to satisfy a predetermined condition, and a surface generation unit 4 configured to generate a surface defined by a locus obtained by moving the profile curve satisfying the predetermined conditions. The predetermined conditions include a condition in which a locus of one point (for example, midpoint) on the profile curve becomes a line of curvature of the surface to be generated. Using such a condition, it is possible to efficiently obtain the high quality surface by setting the line of curvature indicating a flow of the surface as a guide line of a sweep method without repeating trial and error many times.Type: GrantFiled: November 28, 2017Date of Patent: October 12, 2021Assignees: Nihon Unisys, Ltd., Yokohama National UniversityInventors: Shoichi Tsuchie, Takashi Maekawa
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Patent number: 11111433Abstract: Provided are a transparent fluorescent sialon ceramic having fluorescence and optical transparency; and a method of producing the same. Such a transparent fluorescent sialon ceramic includes a sialon phosphor which contains a matrix formed of a silicon nitride compound represented by the formula Mx(Si,Al)y(N,O)z (here, M represents at least one selected from the group consisting of Li, alkaline earth metals, and rare earth metals, 0?x/z<3, and 0<y/z<1) and a luminescent center element.Type: GrantFiled: March 6, 2015Date of Patent: September 7, 2021Assignees: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Takuma Takahashi, Junichi Tatami, Yuki Sano, Takehiko Tanaka, Masahiro Yokouchi