Patents Assigned to Waseda University
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Publication number: 20220274836Abstract: Provided are a carbon nanotube production device and production method capable of realizing high-temperature heating of a catalyst raw material in a floating catalyst chemical vapor deposition (FCCVD) method, and improving the quality and yield of carbon nanotubes synthesized. A carbon nanotube production device 1 includes a synthesis furnace 2 for synthesizing carbon nanotubes; a catalyst raw material supplying nozzle 3 for supplying a catalyst raw material used to synthesize carbon nanotubes to the synthesis furnace 2; and a nozzle temperature adjusting unit 6 capable of setting a temperature of an inner portion 4 of the catalyst raw material supplying nozzle 3 higher than a temperature of a reaction field 5 of the synthesis furnace 2.Type: ApplicationFiled: July 27, 2020Publication date: September 1, 2022Applicants: WASEDA UNIVERSITY, MEIJO NANO CARBON CO., LTD.Inventors: Suguru NODA, Katsuya NAMIKI, Zihao ZHANG, Toshio OSAWA, Hisashi SUGIME
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Publication number: 20220259697Abstract: There is provided a method for recovering PGM, in which at least one base metal oxide selected from a group consisting of copper oxide, iron oxide, tin oxide, nickel oxide and lead oxide is added to and melted in a molten slag, and a PGM alloy contained in the molten slag is recovered.Type: ApplicationFiled: July 6, 2020Publication date: August 18, 2022Applicants: WASEDA UNIVERSITY, DOWA METALS & MINING CO., LTD., NIPPON PGM CO., LTD.Inventors: Keiichi SUGAWARA, Hiromitsu YATSUHASHI, Katsunori YAMAGUCHI, Takashi MURATA
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Publication number: 20220246575Abstract: A bonding method is capable of realizing high bonding strength and connection reliability even at a connection part in a high temperature area by means of simple operation low temperature bonding. The method includes a first step wherein, on at least one of the bonded surfaces of two materials to be bonded having a smooth surface, a thin film of noble metal with a volume diffusion coefficient greater than that of the base metal of the material to be bonded is formed using an atomic layer deposition method at a vacuum of 1.0 Pa or higher, a second step wherein a laminate is formed by overlapping the two materials to be bonded so that the bonded surfaces of the two materials are connected through the thin film, and a third step wherein the two materials to be bonded are bonded by holding the laminate at a predetermined temperature.Type: ApplicationFiled: April 3, 2020Publication date: August 4, 2022Applicants: WASEDA UNIVERSITY, HARIMA CHEMICALS, INC.Inventors: Jun MIZUNO, Hiroyuki KUWAE, Kosuke YAMADA, Masami AIHARA, Takayuki OGAWA
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Patent number: 11364486Abstract: A supported catalyst comprises: a support that is particulate; and a composite layer laminate formed outside the support and including two or more composite layers, wherein each of the composite layers includes a catalyst portion containing a catalyst and a metal compound portion containing a metal compound, the support contains 10 mass % or more of each of Al and Si, and a volume-average particle diameter of the support is 50 ?m or more and 400 ?m or less.Type: GrantFiled: February 17, 2017Date of Patent: June 21, 2022Assignees: WASEDA UNIVERSITY, ZEON CORPORATIONInventors: Suguru Noda, Kosuke Kawabata, Takayoshi Hongo
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Publication number: 20220175242Abstract: A visual perception function evaluation system 10 includes: a display device 12 configured to three-dimensionally display a three-dimensional test image 20 including an object 22 to a subject; a processing device 13 connected to the display device 12; and an input device 11 through which a reply related to whether the object 22 can be perceived is input from the subject to the processing device 13. The processing device 13 includes a display control means 15 for controlling the state of display of the test image 20 on the display device 12, and a neglect region specifying means 16 for specifying a neglect region in a three-dimensional space based on the reply. The display control means 15 controls display so that the three-dimensional position of a display point P varies over time.Type: ApplicationFiled: March 26, 2020Publication date: June 9, 2022Applicant: WASEDA UNIVERSITYInventors: Hiroyasu Iwata, Ryoichi Kato, Kazuhiro Yasuda
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Patent number: 11215673Abstract: A battery module 1 includes a group battery 2 in which batteries 30 (31 to 33) are connected in series, and an assessment evaluation unit 3 configured to calculate respective states of health of battery cells 10, in which the group battery 2 includes label elements 20 respectively connected in parallel with the battery cells 10 and configured such that respective impedance characteristics of the batteries 30 differ from one another, and the assessment evaluation unit 3 includes a measurement unit 42 configured to measure a first Cole-Cole plot of the group battery 2, a first calculation unit 44 configured to decompose the first Cole-Cole plot into respective second Cole-Cole plots of the batteries 30, a second calculation unit 44 configured to calculate respective third Cole-Cole plots of the battery cells 10 from the second Cole-Cole plots, and a third calculation unit 45 configured to calculate respective states of the battery cells 10 from the third Cole-Cole plots.Type: GrantFiled: April 3, 2018Date of Patent: January 4, 2022Assignee: WASEDA UNIVERSITYInventors: Tetsuya Osaka, Tokihiko Yokoshima, Daikichi Mukoyama, Hiroki Nara
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Patent number: 11200673Abstract: An analysis method and a diagnostic device, enabling one to determine whether a longitudinal melanonychia is caused by a malignant melanoma or a benign nevus by correcting color variation in a dermoscopic image through standardization of color balance without depending on an imaging device or an operator; and a computer program for allowing a computer to function as the diagnostic device.Type: GrantFiled: May 22, 2018Date of Patent: December 14, 2021Assignees: SHINSHU UNIVERSITY, WASEDA UNIVERSITYInventors: Takayuki Sota, Atsushi Nakamura, Hiroshi Koga
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Publication number: 20210375572Abstract: It is a CNT device (1) (carbon-metal structure) equipped with a carbon nanotube layer (2) (CNT layer 2; same hereafter) on a metal pedestal (4). The metal pedestal (4) is brazed to the CNT layer (2) with a brazing material layer (3) interposed therebetween. When manufacturing the CNT device (1), firstly, the CNT layer (2) is formed on a heat-resistant textured substrate (6). Next, the metal pedestal (4) is brazed to the CNT layer (2) that is on the heat-resistant textured substrate (6) with the brazing material layer (3) interposed therebetween. Then, the metal pedestal (4) (and the CNT layer 2) is peeled off the heat-resistant textured substrate (6) to transfer the CNT layer (2) from the heat-resistant textured substrate (6) to the metal pedestal (4).Type: ApplicationFiled: October 21, 2019Publication date: December 2, 2021Applicants: WASEDA UNIVERSITY, MEIDENSHA CORPORATIONInventors: Suguru NODA, Sae KITAGAWA, Kotaro YASUI, Hisashi SUGIME, Daizo TAKAHASHI, Yuichi NISHIKIORI, Hayato OCHI, Rena TAKAHASHI, Toshimasa FUKAI
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Patent number: 11152286Abstract: A power semiconductor module device includes: a plurality of semiconductor elements that are arranged at intervals and flush with each other on a plane; an insulating support that fixes the semiconductor elements; a first thick-film plating layer that is formed as a first-surface-side electrode that electrically connects the semiconductor elements to each other on at least one surface of a front surface side and a rear surface side. The first thick-film plating layer supports the semiconductor elements from at least one of an upper direction and a lower direction.Type: GrantFiled: January 22, 2019Date of Patent: October 19, 2021Assignee: WASEDA UNIVERSITYInventor: Kohei Tatsumi
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Publication number: 20210285830Abstract: The sensor detects a proximity situation and applied external force in the same installation area while minimizing elements and boards included in a sensor. A proximity and tactile sensor 10 includes a body unit 11 to be attached to a detection target portion and a detection unit 12 configured to obtain approaching distance of an object to the body unit 11 and magnitude of external force. The body unit 11 includes an electrode 14 formed by a rigid body with conductivity, a magnetic body 15 integrally attached to the electrode 14, a foam 16 disposed outside the electrode 14 and magnetic body 15 and composed of an elastic body, and a magnetic sensor 17 configured to detect change in magnetic field from the magnetic body 15. The detection unit 12 includes a proximity sensing unit 22 and an external force sensing unit 23.Type: ApplicationFiled: July 3, 2017Publication date: September 16, 2021Applicant: WASEDA UNIVERSITYInventors: Alexander Schmitz, Sophon Somlor, Tito Pradhono Tomo, Harris Kristanto, Jinsun Hwang, Shigeki Sugano
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Patent number: 11118634Abstract: A torque limiter 10 includes an input unit 11 connected to a driving device M on input side, and an output unit 12 connected to a robot arm A on output side. The input unit 11 and the output unit 12 include a coupling structure in which the input unit 11 and the output unit 12 approach and recede from each other so as to enable switching of a connecting state where the input unit 11 and the output unit 12 are connected to each other and a non-connecting state where the input unit 11 and the output unit 12 are not connected to each other, through adjustment of magnetic force therebetween. The coupling structure includes an electromagnet 17 that enables adjustment of the magnetic force through adjustment of an application voltage.Type: GrantFiled: February 24, 2018Date of Patent: September 14, 2021Assignee: WASEDA UNIVERSITYInventors: Alexander Schmitz, Wei Wang, Alexis Carlos Holgado, Chincheng Hsu, Kento Kobayashi, Javier Alvarez Lopez, Yushi Wang, Shigeki Sugano
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Publication number: 20210267467Abstract: An ischemic cardiopathy diagnosis assistance system includes pressure data acquisition means 11 for acquiring pressure data including proximal pressure Pa in a proximal stenotic segment A1 and distal pressure Pd in a distal stenotic segment A2; intracoronary electrocardiogram data acquisition means 12 for acquiring intracoronary electrocardiogram data made up of a local intracoronary artery electrocardiogram in a neighborhood of the distal stenotic segment; and computational processing means 14 for finding a pressure ratio Pa/Pd between the proximal pressure Pa and distal pressure Pd at a time suitable for diagnosis of ischemic cardiopathy based on these data.Type: ApplicationFiled: July 19, 2019Publication date: September 2, 2021Applicant: WASEDA UNIVERSITYInventors: Masafumi Nakayama, Kiyotaka Iwasaki
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Patent number: 11081701Abstract: A secondary battery includes an electrode structure, the electrode structure includes a positive electrode changing in volume by expansion or contraction during discharging or charging, and a negative electrode changing in volume in a reverse way to the positive. The positive electrode and the negative electrode have a volume ratio of 1.1 or more, the volume ratio being a value obtained by dividing the volume under expansion by the volume under contraction, and the positive electrode or the negative electrode has the volume ratio of 1.9 or more, and has a total volume ratio of 1.2 or less, the total value ratio being a value obtained by dividing a larger value by a smaller value with respect to a total volume of the positive electrode and the negative electrode in a discharged state and a total volume of the positive electrode and the negative electrode in a charged state.Type: GrantFiled: December 22, 2017Date of Patent: August 3, 2021Assignees: WASEDA UNIVERSITY, ZEON CORPORATIONInventor: Suguru Noda
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Patent number: 11075144Abstract: Provided is a cooler having high cooling efficiency and low pressure loss of fluid. A cooler includes: a flow-channel part at least including a plate-like fin (top plate) and a plate-like fin (bottom plate); and a continuous groove-like flow channel defined between the top plate and the bottom plate to flow fluid, the cooler being configured to cool semiconductor elements. When the flow-channel part is viewed from the direction parallel to the top plate and intersecting the flow channel, the flow channel has a corrugated shape so that a face of the flow channel closer to the top plate and a face of the flow channel closer to the bottom plate bend in a synchronized manner toward the top plate and the bottom plate.Type: GrantFiled: July 31, 2020Date of Patent: July 27, 2021Assignees: FUJI ELECTRIC CO., LTD., WASEDA UNIVERSITYInventors: Ryoichi Kato, Hiromichi Gohara, Yoshinari Ikeda, Tomoyuki Miyashita, Yoshihiro Tateishi, Shunsuke Numata
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Patent number: 10978023Abstract: In a display apparatus, a projected member is arranged in a direction in which a driver of a moving body looks while driving, from the perspective of the driver. A projecting unit projects at least one display object in a position that overlaps a background that is visible to the driver through the projected member, so as to be displayed in a superimposed manner as a virtual image. A measuring unit measures a luminance value of the background. A control unit determines a luminance value of the display object based on the luminance value of the background measured by the measuring unit, chromaticity values of the display object, and a sense of superimposition that is a value having a range of 0 or greater and 100 or less, and controls the projecting unit such that the display object is projected at the luminance value of the display object.Type: GrantFiled: October 23, 2019Date of Patent: April 13, 2021Assignees: DENSO CORPORATION, WASEDA UNIVERSITYInventors: Hiroaki Ogawa, Katsumi Watanabe
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Patent number: 10954128Abstract: A method of producing fibrous carbon nanostructures uses a fluidized bed process, and comprises supplying a source gas to a reaction site in which a supported catalyst having a particulate carrier and a catalyst supported on a surface of the carrier is fluidizing, to form fibrous carbon nanostructures on the catalyst of the supported catalyst, wherein the source gas contains a double bond-containing hydrocarbon and carbon dioxide, and a content of the carbon dioxide is 0.3 vol % or more with respect to a total volume of the source gas.Type: GrantFiled: January 20, 2017Date of Patent: March 23, 2021Assignees: WASEDA UNIVERSITY, ZEON CORPORATIONInventors: Suguru Noda, Soichiro Hachiya, Zhongming Chen, Takayoshi Hongo
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Patent number: 10933044Abstract: Using the cobblestone area (CA) formation inhibitory activity of human leukemic stem cell-like cells as an indicator, a fraction having the activity has been extracted from the fat-soluble fraction of Porifera, then, a compound having the activity has been isolated and purified from the aforementioned fraction, and then, the structure thereof has been determined, so that a Stelliferin compound comprising a novel compound has been identified. Moreover, it has been found that the isolated and purified Stelliferin compound significantly suppresses the niche formation of leukemic stem cell-like cells derived from human chronic myelogenous leukemia (CML) having resistance to existing antitumor agents and enhances the effects of antitumor agents on the cells.Type: GrantFiled: January 12, 2017Date of Patent: March 2, 2021Assignees: WASEDA UNIVERSITY, KABUSHIKI KAISHA YAKULT HONSHAInventors: Yoichi Nakao, Shigetaka Asano, Daisuke Arai, Yukari Kase, Teppei Shimomoto
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Patent number: 10903146Abstract: [Problem] To provide an electrode connection structure and the like in which a plurality of elongated leads are arranged in parallel and a longitudinal side surface of each lead is connected to an electrode by plating treatment with high quality. [Solution] An electrode connection structure in which a semiconductor chip 12 electrode and/or a substrate electrode is connected to a plurality of elongated leads 11 of a lead frame 10 by plating. The plurality of elongated leads 11 of the lead frame 10 are arranged in parallel, and a longitudinal side surface of each lead 11 is connected to the semiconductor chip 12 electrode and/or the substrate electrode by plating.Type: GrantFiled: March 7, 2017Date of Patent: January 26, 2021Assignees: WASEDA UNIVERSITY, MITSUI HIGH-TEC, INC.Inventors: Kohei Tatsumi, Kazutoshi Ueda, Nobuaki Sato, Koji Shimizu
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Patent number: 10845323Abstract: An electronic component includes a field effect transistor that functions as a working electrode of an ion sensor and a driving circuit that causes a potential difference between a source electrode and a drain electrode of the field effect transistor. A reference electrode potential of the field effect transistor is fixed.Type: GrantFiled: March 2, 2017Date of Patent: November 24, 2020Assignees: WASEDA UNIVERSITY, YOKOGAWA ELECTRIC CORPORATIONInventors: Hiroshi Kawarada, Masafumi Inaba, Mohd Sukri Shaili Falina Binti, Takuro Naramura, Keisuke Igarashi, Yukihiro Shintani, Kotaro Ogawa
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Patent number: 10730184Abstract: A control system (10) according to the present invention includes a robot arm (11) provided in a manner capable of moving in a given space, a motor (14) for operating the robot arm (11), a torque adjustment device (16) for operating in a manner capable of adjusting a transmitted torque that is transmitted from the motor (14) to the robot arm (11), and a control device (19) for performing operation control of the robot arm (11). The robot arm (11) is provided with a gravity-compensating mechanism (12) for cancelling an effect of gravity due to the robot arm (11), and the control device (19) commands adjustment of the transmitted torque at the torque adjustment device (16), without taking into account the effect of the gravity of the robot arm (11).Type: GrantFiled: May 23, 2016Date of Patent: August 4, 2020Assignee: WASEDA UNIVERSITYInventors: Alexander Schmitz, Soumya Bhavaraju, Yoshihiro Sakamoto, Gonzaro Aguirre Dominguez, Ritsuki Sato, Wei Wang, Shigeki Sugano