公开(公告)号：US20240160984A1

公开(公告)日：2024-05-16

申请号：US18463815

申请日：2023-09-08

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Yasunobu NAKAMURA ,  Yoshiki SUNADA

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: A quantum entanglement generator comprises two superconducting qubit elements, each having three electrodes, where n is an integer greater than or equal to, a coupling resonator disposed between adjacent superconducting qubit elements and a waveguide capacitively coupled to each of the superconducting qubit elements and to each other. The coupling resonator generates quantum entanglement between the adjacent superconducting qubit elements by acting a two-qubit gate between the adjacent superconducting qubit elements. The superconducting qubit elements emit the quantum entanglement as a propagating microwave photon into the waveguide, thereby generating a two-dimensional cluster state.

公开(公告)号：US11866342B2

公开(公告)日：2024-01-09

申请号：US16648951

申请日：2018-09-18

Applicant: Japan Science and Technology Agency

Inventor： Katsutoshi Nagaoka ,  Yuta Ogura ,  Katsutoshi Sato

IPC: C01F17/241 ,  C01F17/32 ,  B01J23/10 ,  B01J23/46 ,  B01J23/75 ,  B01J37/04 ,  B01J37/08 ,  B01J37/16 ,  C01C1/04 ,  C01G25/00 ,  C01F17/229

CPC classification number: C01F17/241 ,  B01J23/10 ,  B01J23/462 ,  B01J23/75 ,  B01J37/04 ,  B01J37/088 ,  B01J37/16 ,  C01C1/0411 ,  C01F17/229 ,  C01F17/32 ,  C01G25/006 ,  C01P2002/01 ,  C01P2002/90

Abstract: A composite having a composition expressed by AnXyMm wherein, A represents a lanthanoid that is in a trivalent state at least partially or entirely, X represents an element that is a Group-2 element in the periodic table selected from the group consisting of Ca, Sr, and Ba, or a lanthanoid that is different from A, M represents an element that is a Group-1 element in the periodic table, a Group-2 element selected from the group consisting of Ca, Sr, and Ba, or a lanthanoid that is different from A and X, n satisfies 0

公开(公告)号：US20240007102A1

公开(公告)日：2024-01-04

申请号：US18369461

申请日：2023-09-18

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Takeaki Yajima

IPC: H03K17/687 ,  H03K17/06 ,  H03K17/74 ,  H02M3/155 ,  H02M1/08 ,  H02M7/04

CPC classification number: H03K17/687 ,  H03K17/06 ,  H03K17/74 ,  H02M3/155 ,  H02M1/08 ,  H02M7/04

Abstract: A switching circuit includes a switching element of a field-effect type, the switching element being configured to switch between an ON state and an OFF state in accordance with a potential of a control terminal, and a control circuit configured to supply a potential of a first level to the control terminal when maintaining one state of the ON state and the OFF state of the switching element, and make the control terminal floating after charging or discharging the control terminal via a resistor and supply a potential of a second level to the control terminal when switching the switching element from the one state to another state of the ON state and the OFF state, the first level bringing the switching element into the one state, the second level bringing the switching element into said another state.

公开(公告)号：US11819827B2

公开(公告)日：2023-11-21

申请号：US16492975

申请日：2018-03-16

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY ,  TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Hideo Hosono ,  Kazuhisa Kishida ,  Masaaki Kitano ,  Toshiharu Yokoyama

IPC: B01J23/75 ,  B01J23/46 ,  B01J23/745 ,  B01J23/755 ,  B01J35/10 ,  C01B3/04 ,  C01C1/04 ,  B01J27/24

CPC classification number: B01J23/75 ,  B01J23/462 ,  B01J23/745 ,  B01J23/755 ,  B01J35/1004 ,  C01B3/047 ,  C01C1/0411 ,  B01J27/24

Abstract: Provided are a supported metal material showing high catalytic activity, a supported metal catalyst, a method of producing ammonia and a method of producing hydrogen using the supported metal catalyst, and a method of producing a cyanamide compound. The supported metal material of the present invention is a supported metal material in which a transition metal is supported on a support, and the support is a cyanamide compound represented by the following general formula (1): MCN2 (1), wherein M represents a group II element of the periodic table, and the specific surface area of the cyanamide compound is 1 m2 g−1 or more.

公开(公告)号：US11757433B2

公开(公告)日：2023-09-12

申请号：US17881034

申请日：2022-08-04

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Takeaki Yajima

IPC: H03K3/00 ,  H03K3/02 ,  H03K5/01 ,  H03K19/20 ,  H03K5/00

CPC classification number: H03K3/02 ,  H03K5/01 ,  H03K19/20 ,  H03K2005/00013

Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.

公开(公告)号：US20230095617A1

公开(公告)日：2023-03-30

申请号：US17796026

申请日：2021-01-28

Applicant: Japan Science and Technology Agency

Inventor： Yoichi Murakami ,  Yukitaka Kato ,  Hiroki Takasu ,  Xiaohan Wang

IPC: C09K5/16 ,  F28D20/00 ,  F28D20/02

Abstract: A composite material including a covalent organic framework (COF) single crystal having a major axis length of larger than 120 μm or a COF polycrystal including a plurality of the single crystals, and at least one heat-storage compound. The heat-storage compound is a compound that generates heat or absorbs heat by adsorption to or desorption from the COF single crystal. Also, a heat dissipation/storage member containing the composite material as a heat storage/dissipation material a COF single crystal having a major axis length of larger than 120 μm, and a method for producing a COF single crystal by crystallizing COF raw material compounds via a solution containing an ionic liquid or an organic salt and an equilibrium adjusting agent to grow a COF single crystal.

公开(公告)号：US11591238B2

公开(公告)日：2023-02-28

申请号：US16647333

申请日：2018-09-14

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Takashi Tachikawa

IPC: B32B5/16 ,  C01G23/00 ,  B01J23/02 ,  B01J35/00 ,  B01J37/10 ,  B82Y30/00

Abstract: There are provided a new type of crystal laminate of an alkaline earth metal titanate having improved catalytic activity, and a method for producing the same. The crystal laminate is provided having a crystal of the alkaline earth metal titanate as a constitutional unit, wherein the crystal being the constitutional unit is a cubic crystal, a tetragonal crystal or an orthorhombic crystal; the crystal being the constitutional unit has a primary particle diameter of 500 nm or less; and the crystal is layered with an orientation in a {100} plane direction thereof.

公开(公告)号：US20220406370A1

公开(公告)日：2022-12-22

申请号：US17877452

申请日：2022-07-29

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Satoshi Sugahara ,  Yusaku Shiotsu

IPC: G11C11/412 ,  G11C11/419 ,  H03K3/3565 ,  H01L27/11

Abstract: A bistable circuit includes a pair of inverter circuits each including a first FET being connected between a power supply line and an intermediate node and having a gate coupled to an input node and a first conductivity type channel, a second FET being connected between the intermediate node and an output node and having a gate coupled to the input node and the first conductivity type channel, a third FET being connected between the intermediate node and a bias node, a fourth FET being connected between the output node and a control line and having a gate coupled to a word line and a second conductivity type channel, wherein the pair of inverter circuits are connected in a loop shape, and gates of the third FETs of the pair of inverter circuits are coupled to one of the input and output nodes of the pair of inverter circuits.

公开(公告)号：US20220393563A1

公开(公告)日：2022-12-08

申请号：US17769919

申请日：2020-10-28

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Takeaki Yajima ,  Akira Toriumi

IPC: H02M1/00 ,  H02M7/12 ,  H02M3/156 ,  G01R15/09

Abstract: A current sensor includes an element that is in a high-resistance state when an absolute value of a current flowing between a first terminal and a second terminal is within a first range, and changes to a low-resistance state in which a resistance value is lower than that in the high-resistance state when the absolute value of the current exceeds the first range, and a circuit that supplies a current to be measured to the element, and senses a value of the current to be measured based on at least one of voltages of the first terminal and the second terminal.

公开(公告)号：US20220376797A1

公开(公告)日：2022-11-24

申请号：US17790819

申请日：2020-12-28

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Shingo KONO ,  Yasunobu NAKAMURA

IPC: H04B10/70 ,  G21K1/00 ,  G06N10/40

Abstract: A microwave photon control device includes a first qubit and a second qubit that are connected in parallel to a waveguide through which microwave photons propagate, and a direct coupling between the first qubit and the second qubit. An interval between the first qubit and the second qubit is (¼+n/2) times as long as a wavelength of microwave photons (where n is an integer equal to or larger than 0). A quantum entangled state is formed between the first qubit and the second qubit. The direct coupling cancels out a coupling via the waveguide between the first qubit and the second qubit. By a relaxation rate of the first qubit and the second qubit, and a phase of the quantum entangled state being controlled, the microwave photon control device operates while switching between a first operation mode, a second operation mode, and a third operation mode.