Patents Assigned to Tokyo Institute of Technology
  • Publication number: 20230160683
    Abstract: An atomic beam is irradiated with a first, a second, and a third laser beam. The first laser beam and the third laser beam each have a wavelength corresponding to a transition between a ground state and a first excited state. The second laser beam has a wavelength corresponding to a transition between the ground state and a second excited state. First, atoms each having a smaller velocity component than a predetermined velocity in a direction orthogonal to the traveling direction of the atomic beam are changed from the ground state to the first excited state by the first laser beam. Subsequently, a momentum is provided for individual atoms in the ground state by the second laser beam, which removes the atoms from the atomic beam. Finally, atoms in the first excited state are returned from the first excited state to the ground state by the third laser beam.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 25, 2023
    Applicants: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Mikio KOZUMA, Ryotaro INOUE, Toshiyuki HOSOYA, Atsushi TANAKA
  • Publication number: 20230147287
    Abstract: Provided are a genome engineering method and a genome engineering kit which can efficiently engineer two or more alleles and are capable of engineering a relatively large region. The present invention provides a genome engineering method for engineering two or more alleles, comprising the steps of: (a) introducing the following (i) and (ii) to a cell comprising the chromosome: (i) a genome engineering system comprising a sequence-specific nucleic acid cleaving molecule targeting a target region in the chromosomal genome, or a polynucleotide encoding the sequence-specific nucleic acid cleaving molecule, and (ii) two or more donor DNAs for selective markers respectively having different selective marker genes (the number of types of the donor DNAs for selective markers are equal to or more than the number of the alleles that are subject to genome engineering); and (b) selecting the cell on the basis of all the selective marker genes carried by the two or more donor DNAs for selective markers.
    Type: Application
    Filed: April 5, 2021
    Publication date: May 11, 2023
    Applicants: Logomix, Inc., Tokyo Institute of Technology
    Inventors: Yasunori AIZAWA, Tomoyuki OHNO
  • Patent number: 11646562
    Abstract: A current interrupting device includes a current limiting element on a power supply path from a predetermined power supply to a load device. The current limiting element is configured to exhibit a current limiting action when current flowing in the power supply path exceeds a first current threshold value. The current interrupting device further includes a current diversion path switch, and a controller programmed to control on and off of the current diversion path switch. The controller is programmed to switch a current diversion path switch on from an off state when it is detected that current flowing in the current limiting element is limited to a second current threshold value after the current flowing in the current limiting element has exceeded the first current threshold value, and switch the switch off again after a predetermined switched-on holding time has elapsed since the switch has been switched on.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 9, 2023
    Assignees: National University Corporation Saitama University, Tokyo Institute of Technology, The University of Tokyo
    Inventors: Yuki Inada, Yasushi Yamano, Mitsuaki Maeyama, Shungo Zen, Wataru Ohnishi
  • Patent number: 11637234
    Abstract: A magnetoresistive memory cell includes an MTJ element including a magnetization free layer and a pure spin injection source. The pure spin injection source includes a BiSb layer coupled to the magnetization free layer. By flowing an in-plane current through the BiSb layer, this arrangement is capable of providing magnetization reversal of the magnetization free layer.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 25, 2023
    Assignee: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Nam Hai Pham, Huynh Duy Khang Nguyen
  • Publication number: 20230107592
    Abstract: In order to enable a reductive amination reaction at a low temperature and a low hydrogen pressure, provided is a catalyst comprising cobalt supported on an oxide, the catalyst produced by a method comprising the following steps (1) to (4): (1) a step of mixing a salt containing a cobalt ion and an oxide in water, (2) a step of distilling water away from a mixed solution obtained in step (1) and drying a resulting solid material, (3) a step of calcining a dried material obtained in step (2) in a nitrogen stream, and (4) a step of reducing a calcined product obtained in step (3) in a hydrogen stream.
    Type: Application
    Filed: March 1, 2021
    Publication date: April 6, 2023
    Applicant: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Michikazu HARA, Keigo KAMATA, Yusuke KITA, Dian DENG
  • Patent number: 11614318
    Abstract: An atomic beam is irradiated with a first laser beam, a second laser beam, and a third laser beam. The first laser beam and the third laser beam each have a wavelength corresponding to a transition between a ground state and a first excited state. The second laser beam has a wavelength corresponding to a transition between the ground state and a second excited state. First, atoms each having a smaller velocity component than a predetermined velocity in a direction orthogonal to the traveling direction of the atomic beam are changed from the ground state to the first excited state by the first laser beam. Subsequently, a momentum is provided for individual atoms in the ground state by the second laser beam, which removes the atoms from the atomic beam. Finally, atoms in the first excited state are returned from the first excited state to the ground state by the third laser beam.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 28, 2023
    Assignees: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Mikio Kozuma, Ryotaro Inoue, Toshiyuki Hosoya, Atsushi Tanaka
  • Patent number: 11613607
    Abstract: A branched type hetero monodispersed polyethylene glycol represented by formula (1) where X1, Y1, n, E, L1, L2 and L3 are as defined herein.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: March 28, 2023
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, NOF CORPORATION
    Inventors: Kazushi Kinbara, Tomoki Uruga, Tomoyuki Ohtake
  • Patent number: 11604235
    Abstract: A magnetic measuring device includes: a determination part configured to identify four maximum inclination points in an average value in a visual field of a light detection magnetic resonance spectrum and configured to determined a degree of decrease in relative fluorescence intensity and a microwave frequency at each of the maximum inclination points; a setting part configured to set a reference decrease degree of the relative fluorescence intensity in a predetermined area and configured to set operating point frequency initial values at four points at which the reference decrease degree is achieved, near the microwave frequencies at the respective maximum inclination points; a frequency update part configured to update operating point frequencies at the four points; and a frequency correction part configured to input the updated operating point frequencies to a microwave oscillator as corrected operating point frequencies.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: March 14, 2023
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY
    Inventors: Mutsuko Hatano, Takayuki Iwasaki, Yoshie Harada, Yuji Hatano
  • Patent number: 11601074
    Abstract: An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: March 7, 2023
    Assignees: DENSO CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
    Inventors: Daichi Sakurai, Seiichiro Washino, Shota Chatani, Haruhiko Watanabe, Masatoshi Shioya, Daisuke Kimura, Toshihira Irisawa, Kentaro Takagi, Takashi Hasegawa
  • Publication number: 20230063084
    Abstract: According to one embodiment, a spin injection source comprising a half Heusler alloy-topological semi-metal that has a surface state of Dirac type and that is in contact with a ferromagnet. The half Heusler alloy-topological semi-metal supplies a spin current to the ferromagnet based on a current flowing in a direction parallel to a first surface that is in contact with the ferromagnet.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 2, 2023
    Applicant: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Nam Hai PHAM, Takanori SHIRAKURA, Tsuyoshi KONDO
  • Patent number: 11585657
    Abstract: A geoid calculation data is collected easily. A geoid calculation data collection device of the present invention comprises an inertial measurement data acquisition part, a comparison data acquisition part, and a recording part. In the inertial measurement data acquisition part, data related to velocity, position, and attitude angle is acquired as inertially-derived data based on an output of an inertial measurement part having a three-axis gyro and a three-axis accelerometer attached to a moving body. In the comparison data acquisition part, data related to velocity is acquired as comparison data from a source other than the inertial measurement part. In the recording part, inertially-derived data and comparison data are recorded in association with each other. In the inertial measurement part, a bias stability is acquired that allows error arising from plumb line deviation to be distinguished to a predetermined degree.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: February 21, 2023
    Assignees: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Mikio Kozuma, Ryotaro Inoue, Toshiyuki Hosoya, Atsushi Tanaka
  • Patent number: 11583820
    Abstract: A hydrogen generator includes a reaction vessel, a water supply, a temperature adjustor, and a controller. The reaction vessel houses a hydrogen generating material having hydrogen generating ability. The hydrogen generating material includes a two-dimensional hydrogen boride sheet having a two-dimensional network and containing multiple negatively charged boron atoms. The controller is configured to execute a hydrogen generating mode to generate hydrogen from the hydrogen generating material and a regenerating mode to recover the hydrogen generating ability of the hydrogen generating material. The controller controls the temperature adjustor to heat the hydrogen generating material at a first predetermined temperature during the hydrogen generating mode. The controller controls the temperature adjustor to adjust the temperature of the hydrogen generating material to a second predetermined temperature and controls the water supply to supply water during the regenerating mode.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: February 21, 2023
    Assignees: DENSO CORPORATION, University of Tsukuba, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Yasuyuki Hikita, Hiroaki Yoto, Takahiro Kondo, Shin-ichi Ito
  • Patent number: 11578143
    Abstract: A crosslinked rubber composition contains ethylene-propylene-diene copolymer rubber crosslinked with a rotaxane compound having a cyclic molecule and an axial molecule penetrating through the cyclic molecule. In the crosslinked rubber composition, the ethylene-propylene-diene copolymer rubber contains vinylnorbornene, dicyclopentadiene, or tetrahydroindene as a diene component, and the rotaxane compound has a nitrile oxide group on the cyclic molecule and one end of the axial molecule, and the cyclic molecule is crown ether.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 14, 2023
    Assignees: TOYODA GOSEI CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Naoyuki Akahori, Akishige Seo, Naoki Iwase, Toshikazu Takata, Toyokazu Tsutsuba
  • Patent number: 11560444
    Abstract: A block copolymer including a first block consisting of a polymer having a repeating structure of a structural unit (u1) containing no silicon atom, and a second block consisting of a polymer having a repeating structure of a structural unit (u2) containing a silicon atom, the second block containing a block (b21) consisting of a polymer having a repeating structure of a structural unit (u21) represented by general formula (u2-1) shown below, and the volume ratio of the first block, based on all blocks constituting the block copolymer being 42 to 44 vol %: In which RP211 represents an alkyl group, a halogenated alkyl group, a hydrogen atom, or an organic group having a polar group; and RP212 is a group derived from a compound represented by formula SHRt1, wherein Rt1 represents a hydrocarbon group having 1 to 5 carbon atoms optionally having a substituent.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 24, 2023
    Assignees: TOKYO OHKA KOGYO CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Teruaki Hayakawa, Seina Yamazaki, Akiyoshi Yamazaki, Daisuke Kawana, Yoshitaka Komuro, Takaya Maehashi, Rin Odashima
  • Publication number: 20230018477
    Abstract: According to the present invention, there are provided a composite body that enables the formation of a lithium ion conductor that exhibits good lithium ion conductivity by a pressurization treatment without sintering at a high temperature (about 1,000° C.) while using a lithium-containing oxide having excellent safety and stability, as well as a lithium ion conductor, an all-solid state lithium ion secondary battery, an electrode sheet for an all-solid state lithium ion secondary battery, and lithium tetraborate. The composite body according to the embodiment of the present invention contains a lithium compound having a lithium ion conductivity of 1.0×10?6 S/cm or more at 25° C. and lithium tetraborate that satisfies the following requirement 1. The requirement 1: In a reduced two-body distribution function G(r) obtained from an X-ray total scattering measurement of the lithium tetraborate, a first peak in which a peak top is located in a range where r is 1.43±0.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Applicants: FUJIFILM Corporation, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Yukihiro OKUNO, Yosuke SHIRATORI, Shintaro YASUI, Mitsuru ITOH
  • Publication number: 20230020147
    Abstract: A peer-to-peer terminal includes a bid data obtaining unit, a bid data transmitter, a contract result calculator, a contract result transmitter, a contract result receiver, and a contract result selector. The bid data obtaining unit obtains bid data. The bid data transmitter transmits the bid data to another peer-to-peer terminal. The contract result calculator calculates a contract result from a bid data set obtained by the bid data obtaining unit and including the bid data. The contract result transmitter transmits the contract result to the other peer-to-peer terminal. The contract result receiver receives, from the other peer-to-peer terminal, another contract result calculated by the other peer-to-peer terminal. The contract result selector selects one contract result from among the contract result and the other contract result.
    Type: Application
    Filed: January 30, 2020
    Publication date: January 19, 2023
    Applicants: Mitsubishi Electric Corporation, Tokyo Institute of Technology
    Inventors: Yuta OKUMURA, Takuya ODA, Yuya KAJIKAWA, Keisuke TANAKA, Xavier DEFAGO
  • Patent number: 11555089
    Abstract: An object of the present invention is to provide a novel rotaxane and a polyurethane using the same. The present invention provides a rotaxane having a crown ether and a chain molecule piercing through the cyclic structure of the crown ether, wherein a hydroxyl group exists at one terminal of the chain molecule, and a hydroxyl group bonds to the cyclic structure of the crown ether. The present invention further provides a polyurethane using the rotaxane as a polyol component.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: January 17, 2023
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Toshiyuki Tarao, Mami Tanaka, Toshikazu Takata, Jun Sawada
  • Patent number: 11555082
    Abstract: The present invention pertains to: a p-boronophenylalanine derivative that comprises a polymer to which a group represented by formula (I) is linked directly or via a linker; a composition containing same; and a kit for producing said derivative and composition.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: January 17, 2023
    Assignee: TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Nobuhiro Nishiyama, Takahiro Nomoto, Yukiya Inoue, Ying Yao, Kaito Kanamori, Hiroyasu Takemoto, Makoto Matsui, Keishiro Tomoda
  • Publication number: 20230012093
    Abstract: The invention provides a non-volatile storage element and non-volatile storage device employing a ferroelectric material with low power consumption, excellent high reliability, and especially write/erase endurance, which can be mixed with advanced CMOS logic. The non-volatile storage element has at least a first conductive layer, a second conductive layer, and a ferroelectric layer composed of a metal oxide between both conductive layers, with a buffer layer having oxygen ion conductivity situated between the ferroelectric layer and the first conductive layer and/or second conductive layer.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 12, 2023
    Applicant: Tokyo Institute of Technology
    Inventors: Kuniyuki KAKUSHIMA, Hiroshi FUNAKUBO, Shun-ichiro OHMI, Joel MOLINA REYES, Ichiro FUJIWARA, Atsushi HORI, Takao SHIMIZU, Yoshiko NAKAMURA, Takanori MIMURA
  • Publication number: 20230011067
    Abstract: An atomic interferometer includes: an optical system including an optical modulating device that includes: an optical fiber for a first laser beam to propagate therein; and a frequency shifter connected to the optical fiber and configured to shift the frequency of the first laser beam, the optical system being configured to generate a moving standing light wave from counter-propagation of the first laser beam from the optical modulating device and a second laser beam; and an interference system for making an atomic beam interact with three or more moving standing light waves including the moving standing light wave.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 12, 2023
    Applicants: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Ryotaro INOUE, Mikio KOZUMA, Atsushi TANAKA