Patents Assigned to Waseda University
  • Patent number: 10903146
    Abstract: [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: Grant
    Filed: March 7, 2017
    Date of Patent: January 26, 2021
    Assignees: WASEDA UNIVERSITY, MITSUI HIGH-TEC, INC.
    Inventors: Kohei Tatsumi, Kazutoshi Ueda, Nobuaki Sato, Koji Shimizu
  • Patent number: 10845323
    Abstract: 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: Grant
    Filed: March 2, 2017
    Date of Patent: November 24, 2020
    Assignees: WASEDA UNIVERSITY, YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hiroshi Kawarada, Masafumi Inaba, Mohd Sukri Shaili Falina Binti, Takuro Naramura, Keisuke Igarashi, Yukihiro Shintani, Kotaro Ogawa
  • Patent number: 10730184
    Abstract: 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: Grant
    Filed: May 23, 2016
    Date of Patent: August 4, 2020
    Assignee: WASEDA UNIVERSITY
    Inventors: Alexander Schmitz, Soumya Bhavaraju, Yoshihiro Sakamoto, Gonzaro Aguirre Dominguez, Ritsuki Sato, Wei Wang, Shigeki Sugano
  • Patent number: 10718817
    Abstract: A battery state estimating apparatus is provided with: an acquirer configured to obtain a plurality of complex impedances of a battery at a plurality of different temperatures; a calculator configured to calculate a slope of a straight line connecting values of the obtained plurality of complex impedances at a first predetermined frequency on a complex plane having an axis that is a real component of the complex impedance and an axis that is an imaginary component of the complex impedance, as a slope of the complex impedance; a storage configured to store in advance a relation between the slope of the complex impedance and a battery state associated with the battery; and an estimator configured to estimate the battery state on the basis of the calculated slope of the complex impedance and the stored relation.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: July 21, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, WASEDA UNIVERSITY
    Inventors: Yasumasa Oguma, Tetsuya Osaka, Shingo Tsuda, Kazuaki Utsumi, Tokihiko Yokoshima, Daikichi Mukoyama
  • Patent number: 10698670
    Abstract: There is provided a parallel program generating method capable of generating a static scheduling enabled parallel program without undermining the possibility of extracting parallelism. The parallel program generating method executed by the parallelization compiling apparatus 100 includes a fusion step (FIG. 2/STEP026) of fusing, as a new task, a task group including a reference task as a task having a conditional branch, and subsequent tasks as tasks control dependent, extended-control dependent, or indirect control dependent on respective of all branch directions of the conditional branch included in the reference task.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 30, 2020
    Assignee: WASEDA UNIVERSITY
    Inventors: Hironori Kasahara, Keiji Kimura, Dan Umeda, Hiroki Mikami
  • Patent number: 10681808
    Abstract: A highly thermally conductive printed circuit board prevents electrochemical migration by inhibiting elution of copper ions. The printed circuit board is a metal-base printed circuit board including a metal base plate having an insulating resin layer and a copper foil layer stacked thereon in this order. In the printed circuit board, the insulating resin layer contains a first inorganic filler made of inorganic particles having particle diameters of 0.1 nm to 600 nm with an average particle diameter (D50) of 1 nm to 300 nm, and a second inorganic filler made of inorganic particles having particle diameters of 100 nm to 100 ?m with an average particle diameter (D50) of 500 nm to 20 ?m, and the first inorganic filler and the second inorganic filler are uniformly dispersed in the insulating resin layer.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 9, 2020
    Assignees: Waseda University, Fuji Electric Co., Ltd.
    Inventors: Yoshimichi Ohki, Yuichi Hirose, Genta Wada, Toshikatsu Tanaka, Kenji Okamoto
  • Patent number: 10660977
    Abstract: The present invention suppresses the strength reduction or degeneration of a tissue after the tissue is dried and/or sterilized, for the tissue comprising biological components and the like. Specifically, biological tissue is immersed in a trehalose solution and shaken, thereby impregnating the biological tissue with the trehalose solution. The trehalose solution used here is one obtained by dissolving trehalose in a phosphate buffered saline, the concentration of trehalose being preferably in the range of 20 wt % to 35 wt %. Thereafter, the biological tissue is dried to remove moisture in the biological tissue, and sterilized with ethylene oxide gas.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: May 26, 2020
    Assignee: WASEDA UNIVERSITY
    Inventors: Kiyotaka Iwasaki, Mitsuo Umezu
  • Publication number: 20200139562
    Abstract: A power transmission system 10 includes: a variable torque limiter 16 configured to allow a torque limit value to be variable, the torque limit value being an upper limit value of transmitted power from an input unit 21 to an output unit 22; an input-side displacement sensor 17A configured to detect a displacement state of the input unit 21; an output-side displacement sensor 17B configured to detect a displacement state of the output unit 22; and a control device 19 configured to perform transmission control of the power based on detection results of the respective sensors. The control device 19 includes a safety measure control function 25, a teaching control function 26, and an operation control function 27. The safety measure control function 25 interrupts transmission of the power when the transmitted power exceeds the limit value. The teaching control function 26 interrupts transmission of the power in teaching.
    Type: Application
    Filed: February 24, 2018
    Publication date: May 7, 2020
    Applicant: WASEDA UNIVERSITY
    Inventors: Alexander Schmitz, Wei Wang, Alexis Carlos Holgado, Chincheng Hsu, Kento Kobayashi, Javier Alvarez Lopez, Yushi Wang, Shigeki Sugano
  • Patent number: 10634782
    Abstract: An extravisual obstacle detecting system includes: a radio wave receiving unit 15 configured to receives a radio wave from a radio wave source 13 attached to an object 11; one or a plurality of external sensors 19 attached to the vehicle 17 and configured to detect an external obstacle; an alarm generating unit 21 configured to generate a predetermined alarm, and, when the radio wave receiving unit 15 receives the radio wave from the object 11, and the external sensors 19 do not detect the object 11, the alarm generating unit 21 generates the first alarm.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: April 28, 2020
    Assignees: Waseda University, Optoquest Co., Ltd
    Inventors: Tetsuya Kawanishi, Masaru Fukumitsu
  • Publication number: 20200025258
    Abstract: 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: Application
    Filed: February 24, 2018
    Publication date: January 23, 2020
    Applicant: WASEDA UNIVERSITY
    Inventors: Alexander Schmitz, Wei Wang, Alexis Carlos Holgado, Chincheng Hsu, Kento Kobayashi, Javier Alvarez Lopez, Yushi Wang, Shigeki Sugano
  • Publication number: 20200016586
    Abstract: A catalyst-adhered body production method comprising an adhesion process for arranging a mixed liquid comprising a catalyst raw material and/or a catalyst carrier raw material and target particles in a container having a porous plate and adhering a catalyst and/or a catalyst carrier to the surface of target particles to obtain adherence-treated particles, an excess solution removal process for removing via the porous plate, at least a portion of excess solution comprising excess components which did not adhere to the adherence-treated particles from the container, to form a filled layer of the adherence-treated particles on the porous plate, and a drying process for drying the filled layer in the container.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 16, 2020
    Applicants: WASEDA UNIVERSITY, ZEON CORPORATION
    Inventors: Suguru NODA, Risa MAEDA, Akiyoshi SHIBUYA
  • Publication number: 20200009536
    Abstract: A manufacturing method for supported catalysts comprising a step A of forming a mixed layer having a catalyst component and a catalyst carrier component on at least a portion of the surface of a support body having a catalytic layer by bringing a mixed solution comprising a catalyst raw material and a catalyst carrier raw material into contact with the support body having a catalytic layer on the surface. Furthermore, such a manufacturing method for supported catalysts preferably comprises a step B in which the catalyst component is made to segregate to a surface of the mixed layer after step A.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 9, 2020
    Applicants: WASEDA UNIVERSITY, ZEON CORPORATION
    Inventors: Suguru NODA, Risa MAEDA, Akiyoshi SHIBUYA, Takayoshi HONGO
  • Patent number: 10474188
    Abstract: Provided are an electronic device employing a polymer nanosheet, having an electronic element and a conductive wiring that are connected to each other in a solder-free manner, and exhibiting a high conformability and adhesiveness to an object for attaching including a biological tissue such as skin; and a method for manufacturing the same. The electronic device includes the electronic element; and the polymer nanosheet adhering to the electronic element. Specifically, the polymer nanosheet adheres to the electronic element in a manner such that one surface of the electronic element is entirely covered by the polymer nanosheet. It is preferred that the polymer nanosheet have a thickness of smaller than 1 ?m. Further, a conductive wiring capable of being electrically connected to the electronic element; and a power source for supplying power to the electronic element, may also be formed on the polymer nanosheet.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 12, 2019
    Assignee: WASEDA UNIVERSITY
    Inventors: Toshinori Fujie, Marin Okamoto, Kento Yamagishi, Atsushi Murata, Shinji Takeoka, Eiji Iwase, Mizuho Kurotobi, Hiroyasu Iwata
  • Publication number: 20190276682
    Abstract: Provided are a polymer, a resin composition, and an antifouling coating material composition which are capable of forming a coating film having both of water resistance and antifouling properties resulting from superhydrophilicity; a method for producing the polymer; a method for forming a structure for stabilizing a carbamate on a surface of a coating film using the polymer; and a method for regenerating a structure for stabilizing a carbamate on a surface of a coating film using the polymer. The polymer having a structure which reacts with CO2 in the presence of water and stabilizes a formed carbamate, in which Expression (1) is satisfied.
    Type: Application
    Filed: April 30, 2019
    Publication date: September 12, 2019
    Applicants: Waseda University, Mitsubishi Chemical Corporation
    Inventors: Takeo SUGA, Hiroyuki NISHIDE, Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Tomokazu IWASAKI
  • Publication number: 20190271747
    Abstract: 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: Application
    Filed: April 3, 2018
    Publication date: September 5, 2019
    Applicants: WASEDA UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya OSAKA, Tokihiko YOKOSHIMA, Daikichi MUKOYAMA, Hiroki NARA
  • Publication number: 20190267967
    Abstract: A method of manufacturing a bonded substrate, which has a quartz substrate and a piezoelectric substrate bonded, includes irradiating a bonding surface of the quartz substrate and a bonding surface of the piezoelectric substrate with ultraviolet light under a pressure lower than atmosphere pressure. After the irradiation, the bonding surface of the quartz substrate and the bonding surface of the piezoelectric substrate are brought into contact. And the quartz substrate and the piezoelectric substrate are pressurized in a thickness direction to bond the bonding surfaces.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Applicants: THE JAPAN STEEL WORKS, LTD., WASEDA UNIVERSITY, UNIVERSITY OF YAMANASHI
    Inventors: Kouhei KURIMOTO, Kazuhito KISHIDA, Rinzo KAYANO, Jun MIZUNO, Shoji KAKIO
  • Patent number: 10392329
    Abstract: A method and a device for condensing a water-soluble organic matter, which can collect a highly concentrated water-soluble organic matter, save energy, and reduce cost of the device by reducing a membrane area. According to the present invention, the permeability ratio of a vapor-permeation separation membrane disposed at least immediately before a final outlet on a non-permeation side in the separation membrane device is lower than those of the other vapor-permeation separation membranes while a hybrid process combining distillation by the distillation column with membrane separation by the separation membrane devices including a plurality of vapor-permeation separation membranes is used and energy saving performance is maintained. Therefore, a highly concentrated and condensed component of a water-soluble organic matter is obtained.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 27, 2019
    Assignees: WASEDA UNIVERSITY, MITSUBISHI CHEMICAL CORPORATION, HITACHI ZOSEN CORPORATION, CHIYODA CORPORATION
    Inventors: Masahiko Matsukata, Kenichi Kawazuishi, Kenichi Mimura
  • Publication number: 20190229103
    Abstract: A semiconductor device includes: a first switching element that is provided on a high side; a first diode element that is connected in parallel to the first switching element; a second switching element that is provide on a low side and connected in series to the first switching element; and a second diode element that is connected in parallel to the second switching element, wherein the first switching element and one of the first diode element and the second diode element are stacked adjacently to each other in a vertical direction of respective electrode surfaces thereof via a conductive electrode, the second switching element and the other of the first diode element and the second diode element that is different from the diode element adjacent to the first switching element are stacked adjacently to each other in a vertical direction of respective electrode surfaces thereof via a conductive electrode, and the first switching element and the second switching element are not adjacent in a vertical direction
    Type: Application
    Filed: January 25, 2019
    Publication date: July 25, 2019
    Applicants: WASEDA UNIVERSITY, MITSUI HIGH-TEC., INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohei TATSUMI, Kazuhito KAMEI, Rikiya Kamimura, Koji SHIMIZU, Kazutoshi UEDA, Nobuaki SATO, Keiji TODA, Masayuki HIKITA, Akihiro IMAKIIRE
  • Patent number: 10356896
    Abstract: A self-healing wire includes, an electric wire arranged on a substrate, and a hybrid structure in which the electric wire is covered with at least one fluid selected from the group consisting of a fluid having conductive particles dispersed therein and a fluid having metal ions dissolved therein, formed on a healing portion for a crack to be generated in the electric wire. And a stretchable device includes the self-healing wire formed on a stretchable base material and an electric element mounted only on a base material higher in rigidity than the stretchable base material. Even when a crack is generated in the electric wire due to stretching of the substrate having flexibility, the crack is bridged by the conductive particles or a solid metal deposited from the metal ions in the fluid. Thus the self-healing wire and the stretchable device having both high conductivity and high stretchability are provided.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 16, 2019
    Assignee: WASEDA UNIVERSITY
    Inventors: Eiji Iwase, Tomoya Koshi
  • Patent number: 10340881
    Abstract: There is provided a bonded substrate including: a quartz substrate; and a piezoelectric substrate which is bonded on the quartz substrate and on which a surface acoustic wave propagates, wherein the quartz substrate and the piezoelectric substrate are bonded at a bonding interface through covalent bonding, and a surface acoustic wave element having a higher phase velocity and a higher electromechanical coupling factor than conventional one is obtained by disposing an interdigital electrode on a principal surface of the piezoelectric substrate.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: July 2, 2019
    Assignees: THE JAPAN STEEL WORKS, LTD., WASEDA UNIVERSITY, UNIVERSITY OF YAMANASHI
    Inventors: Kouhei Kurimoto, Kazuhito Kishida, Rinzo Kayano, Jun Mizuno, Shoji Kakio