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公开(公告)号：US20170205479A1
公开(公告)日：2017-07-20
申请号：US15403474
申请日：2017-01-11
Applicant: JEOL Ltd.
Inventor： Katsuyuki Toshima , Shinji Nakamura , Shigenori Tsuji
IPC: G01R33/34
CPC classification number: G01R33/3403 , G01R33/30 , G01R33/34092
Abstract: A sample tube is arranged in a sample temperature adjusting pipe, and a temperature adjustment gas is supplied. A vacuum vessel is formed with the sample temperature adjusting pipe and an outer wall body, and a detection coil and the like to be placed in a cooling state are arranged in the vacuum vessel. A sealed section between the sample temperature adjusting pipe and the outer wall body is sealed by a sealing structure. The sealing structure includes a high-vacuum O-ring and a low-temperature O-ring. The high-vacuum O-ring has characteristics for sealing the sealed section in a regular temperature region. The regular temperature region is a temperature region excluding a low temperature region, and the low temperature region is a temperature region including a lower limit in a possible temperature adjustment range of the temperature adjustment gas. The low-temperature O-ring has characteristics for sealing the sealed section in the low temperature region.
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公开(公告)号：US20250140435A1
公开(公告)日：2025-05-01
申请号：US18834866
申请日：2023-01-10
Inventor： Hidetoshi Katori , Hiu Tat Antony Yang , Masao Takamoto , Shigenori Tsuji
Abstract: In this magneto-optical trap device, five laser beams are irradiated in a trap space in which atoms are trapped. Of the five laser beams, three laser beams (laser beams a1, a2, a3) pass through the inside of the same plane (Z plane) and are irradiated in the trap space. The two laser beams that intersect that plane (laser beams a4, a5) are irradiated in the trap space. The laser beam a1 is used together as a slowing laser beam b for Zeeman slower.
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公开(公告)号：US20240114611A1
公开(公告)日：2024-04-04
申请号：US18038476
申请日：2021-11-08
Inventor： Shigenori Tsuji , Masao Takamoto , Hidetoshi Katori
IPC: H05H3/02
CPC classification number: H05H3/02
Abstract: By heating a high-temperature bath with a heater, atomic gas is generated in the high-temperature bath from an atomic source. A magneto-optical trap is realized by a laser beam reflected by a right-angled conical mirror and a magnetic field formed by a magnetic field generator, and the atomic gas is confined by using the magneto-optical trap and cooled. The cooled atoms are output from an opening to the outside of a slow atom beam generator by a laser beam, which is a push laser beam. A slow atomic beam is thereby formed.
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公开(公告)号：US20230229115A1
公开(公告)日：2023-07-20
申请号：US17915797
申请日：2021-03-30
Inventor： Shigenori Tsuji , Masao Takamoto , Hidetoshi Katori
CPC classification number: G04F5/14 , G02F1/09 , H01J37/16 , H01S1/06 , H01J2237/18
Abstract: A physical package is provided with: a MOT device; an optical chamber which constitutes an optical lattice formation portion; and a vacuum chamber which surrounds these components and has a substantially cylindrical shape. The MOT device is arranged along the beam axis of an atomic beam and traps an atom cluster. The optical lattice formation portion uses optical lattice light that enters therein to form an optical lattice in a cavity, confines the atom cluster trapped by the MOT device in the optical lattice, and transfers, along the X-axis which is a movement axis perpendicular to the beam axis, the atom cluster to a clock transition space which facilitates clock transition. The central axis of the cylinder of the main body of the vacuum chamber passes through the clock transition space, and is set to be substantially parallel with the beam axis.
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公开(公告)号：US20230120920A1
公开(公告)日：2023-04-20
申请号：US17915745
申请日：2021-03-30
Inventor： Shigenori Tsuji , Masao Takamoto , Hidetoshi Katori
Abstract: A tri-axial magnetic field correction coil includes a first coil group and a second coil group with respect to an X-axis direction that passes through a clock transition space in which atoms are disposed. The first coil group is a Helmholtz-type coil composed in a point-symmetrical shape around the clock transition space. The second coil group is composed in a point-symmetrical shape around the clock transition space with respect to the X-axis direction, and is a non-Helmholtz-type coil that differs from the first coil group in terms of coil size, coil shape, or distance between coils.
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Patent Agency Ranking
公开(公告)号：US10775456B2
公开(公告)日：2020-09-15
申请号：US16392949
申请日：2019-04-24
Applicant: JEOL Ltd.
Inventor： Katsuyuki Toshima , Shigenori Tsuji , Shinji Nakamura , Fumio Hobo , Takeshi Tsukada , Akifumi Nomura
IPC: G01R33/385 , G01R1/067 , G01R33/421
Abstract: A sample pipe is provided in a sample temperature control pipe. A detection coil is provided in a low-temperature airtight chamber and configured to irradiate a sample with a high-frequency magnetic field. A room-temperature shield is provided on an outer circumferential surface of the sample temperature control pipe or on an inner circumferential surface thereof, and is configured to block irradiation of the high-frequency magnetic field from the detection coil from reaching a region other than an observation object. A low-temperature shield is provided in an airtight chamber and between the detection coil and the room-temperature shield and is configured to block irradiation of the high-frequency magnetic field from the detection coil from reaching the room-temperature shield.
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公开(公告)号：US20240187009A1
公开(公告)日：2024-06-06
申请号：US18285995
申请日：2022-03-09
Inventor： Shigenori Tsuji , Masao Takamoto , Hidetoshi Katori
Abstract: A high-temperature tank includes an optical window which transmits a laser and is provided at one end, and a right-angle conical mirror which is provided at the other end, has an opening at the apex, and which reflects laser light incident from the optical window towards the one end in an area other than opening. A magnetic field generator generates a magnetic field in the region of intersection of the laser reflected by the right-angle conical mirror. A magnetic field gradient attenuation module locally attenuates the gradient of the magnetic field generated by the magnetic field generator.
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公开(公告)号：US10705164B2
公开(公告)日：2020-07-07
申请号：US15592787
申请日：2017-05-11
Applicant: JEOL Ltd.
Inventor： Fumio Hobo , Katsuyuki Toshima , Shinji Nakamura , Shigenori Tsuji , Ryoji Tanaka , Hiroto Suematsu
IPC: G01R33/34 , G01R33/30 , G01R33/36 , G01R33/565
Abstract: A pair of detection coils, one coil provided on each side of a sample container across the width of the sample container. The detection coil is made of a superconductor and has an electric circuit pattern capable of detecting a magnetic resonance signal from a sample. The detection coil includes a lateral component intersectional to a static magnetic field H0 and having a part disposed at a position spaced away from a detection region, as compared to the remaining part.
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公开(公告)号：US10571533B2
公开(公告)日：2020-02-25
申请号：US15654049
申请日：2017-07-19
Applicant: JEOL Ltd.
Inventor： Shigetoshi Oshima , Shigenori Tsuji
Abstract: A manufacturing method includes forming a superconductive thin-film layer on a substrate and processing the superconductive thin-film layer into a shape of a detection coil for magnetic resonance measurement. Accordingly, a superconductive thin-film layer having the detection coil shape can be formed. The method further includes irradiating the shape-processed superconductive thin-film layer with ions. Accordingly, lattice defects serving as pinning can be formed in the superconductive thin-film layer.
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公开(公告)号：US10539634B2
公开(公告)日：2020-01-21
申请号：US15654049
申请日：2017-07-19
Applicant: JEOL Ltd.
Inventor： Shigetoshi Oshima , Shigenori Tsuji
Abstract: A manufacturing method includes forming a superconductive thin-film layer on a substrate and processing the superconductive thin-film layer into a shape of a detection coil for magnetic resonance measurement. Accordingly, a superconductive thin-film layer having the detection coil shape can be formed. The method further includes irradiating the shape-processed superconductive thin-film layer with ions. Accordingly, lattice defects serving as pinning can be formed in the superconductive thin-film layer.
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