WO2018174298A1 - 電磁場制御用部材 - Google Patents
電磁場制御用部材 Download PDFInfo
- Publication number
- WO2018174298A1 WO2018174298A1 PCT/JP2018/012047 JP2018012047W WO2018174298A1 WO 2018174298 A1 WO2018174298 A1 WO 2018174298A1 JP 2018012047 W JP2018012047 W JP 2018012047W WO 2018174298 A1 WO2018174298 A1 WO 2018174298A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic field
- field control
- power supply
- supply terminal
- insulating member
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/04—Synchrotrons
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/08—Deviation, concentration or focusing of the beam by electric or magnetic means
- G21K1/093—Deviation, concentration or focusing of the beam by electric or magnetic means by magnetic means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/10—Arrangements for ejecting particles from orbits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
- H05H2007/046—Magnet systems, e.g. undulators, wigglers; Energisation thereof for beam deflection
Definitions
- This disclosure relates to an electromagnetic field control member.
- an electromagnetic field control member used in an accelerator for accelerating charged particles such as electrons and heavy particles is required to have high speed, high magnetic field output, and high repeatability.
- Spring-8 Shiori Mitsuda et al. Proposed a ceramic chamber-integrated pulse magnet (Ceramic Chamber Integrated Pulsed-Magnet, hereinafter referred to as CCIPM).
- the electromagnetic field control member of the present disclosure is made of cylindrical ceramics, and has an insulating member having a plurality of through-holes along the axial direction, and an opening made of metal and opened on the outer periphery of the insulating member.
- the power supply terminal is separated from the inner wall of the through hole, and has a first end and a second end in the axial direction, and at least one of the first end and the second end is a center of the power supply terminal It is further away from the inner wall than the part.
- FIG. 2C is a cross-sectional view taken along line C-C ′ of FIG. 1C, where FIG. 1A is an example, and FIG. 1B is another example.
- FIG. 1 shows an example of an electromagnetic field control member of the present embodiment
- (a) is a perspective view
- (b) is an enlarged view of part A in (a)
- (c) is in (a).
- (d) is a mimetic diagram explaining the composition of a feed terminal.
- FIG. 2 is a cross-sectional view taken along the line CC ′ of FIG. 1 (c), (a) is an example, and (b) is another example.
- one member constituting the power supply terminal is colored for identification.
- This example describes an example of CCIPM (ceramic chamber integrated pulse magnet) as an embodiment of the electromagnetic field control member.
- the CCIPM of this example is made of cylindrical ceramics and closes the through hole so as to have an insulating member having a plurality of through holes along the axial direction and an opening made of metal and opening on the outer periphery of the insulating member.
- An electromagnetic field control member 10 shown in FIG. 1 includes an insulating member 1 made of cylindrical ceramics, a conductive member 2 made of metal and extending in the axial direction, and a power supply terminal 3 connected to the conductive member 2. .
- the axial direction is the central axial direction of the insulating member 1 made of cylindrical ceramics.
- the insulating member 1 is cylindrical.
- the insulating member 1 has a plurality of through holes along the axial direction before the conducting member 2 is arranged.
- the conducting member 2 is positioned in the through hole of the insulating member 1 and closes the through hole so as to have an opening 1b that opens to the outer periphery 1a of the insulating member 1.
- the conductive member 2 and the power supply terminal 3 are connected by brazing using a brazing material.
- the power supply terminal 3 has a first end 31 and a second end 32 along the axial direction.
- the first end 31 is one end portion in the direction along the axial direction
- the second end 32 is the other end portion in the direction along the axial direction. Therefore, the first end 31 and the second end 32 are farthest from each other at the power feeding terminal 3.
- the insulating member 1 has electrical insulating properties and nonmagnetic properties, and is made of, for example, aluminum oxide ceramics or zirconium oxide ceramics.
- aluminum oxide ceramic of all components 100% by mass constituting the ceramics, aluminum oxide content in terms of Al to Al 2 O 3 is at that of the ceramic is 90 mass% or more.
- Zirconium oxide ceramics are ceramics having a zirconium oxide content of 90% by mass or more when Zr is converted to ZrO 2 out of 100% by mass of all components constituting the ceramics.
- the outer diameter is set to 35 mm to 45 mm
- the inner diameter is set to 25 mm to 35 mm
- the axial length is set to 380 mm to 420 mm.
- the space 4 located inside the insulating member 1 is for accelerating or deflecting electrons, heavy particles, etc. moving in the space 4 by a high frequency or pulsed electromagnetic field, it is necessary to maintain a vacuum.
- the flange 9 shown in FIG. 1 is a member connected to the vacuum pump for making the space 4 into a vacuum.
- the conducting member 2 secures a conductive region for flowing an induced current that is excited to accelerate or deflect electrons, heavy particles, and the like that move in the space 4. As shown in FIG. 2, the conducting member 2 is preferably along the inner periphery 1 c of the insulating member 1.
- the feeding terminals 3 are joined by brazing materials such as silver brazing (for example, BAg-8) in the vicinity of both ends of the conductive member 2. Then, electricity is supplied to the power supply terminal 3 via the electric transmission member 5.
- the electric transmission member 5 is fixed by being fastened with a screw 6 to the screw hole 3 d of the power supply terminal 3.
- the conducting member 2, the power feeding terminal 3, and the electric transmission member 5 are made of copper, for example. From the viewpoint of electrical resistance, oxygen-free copper is preferred among copper.
- the brazing material sometimes sticks to the surface of the power supply terminal, which is a member to be joined, and a brazing pool in contact with the inner wall of the through hole of the insulating member may occur.
- the brazing pool in the inner wall repeatedly expands and contracts during repeated heating and cooling in use, and the expansion and contraction may cause cracks in the inner wall of the insulating member.
- the space located inside the insulating member is a space for accelerating or deflecting electrons, heavy particles, etc. moving in the space by a high-frequency or pulsed electromagnetic field, and is kept in a vacuum. Need to be.
- the airtightness of the space located inside the insulating member may be reduced due to the occurrence of cracks in the insulating member due to the wax pool.
- the power supply terminal 3 in the electromagnetic field control member 10 of the present embodiment is separated from the inner wall 1d of the through hole, and at least one of the first end 31 and the second end 32 is closer to the inner wall 1d than the central portion of the power supply terminal 3. is seperated. In other words, it can be said that at least one of the first end 31 and the second end 32 is narrower or thinner than the central portion of the power supply terminal 3. Since the electromagnetic field control member 10 of the present embodiment satisfies such a configuration, the brazing material does not easily rise on the surface of the power supply terminal 3 that is a member to be joined at the time of brazing. There is little risk of brazing pools coming into contact with the inner wall 1d of the hole.
- the central portion of the power supply terminal 3 is, for example, when the power supply terminal 3 is composed of an end member 3a and a central member 3b as shown in FIG. It hits.
- the power supply terminal 3 is made of a single body, when the distance between the first end 31 and the second end 32 is a length, a portion corresponding to the center of the length divided into five is defined as a central portion. Moreover, what is necessary is just to compare with the distance to the inner wall 1d by being separated from the inner wall 1d.
- the distance between the inner walls 1d in other words, the width of the opening 1b is 4 mm or more and 6 mm or less, and the width (thickness) of at least one of the first end 31 and the second end 32 is 0.5 mm or more and 1.5 mm or less. Is set to 2 mm or more and 3 mm or less.
- both ends of the first end 31 and the second end 32 may be further away from the inner wall 1 d than the central portion of the power feeding terminal 3.
- the power supply terminal 3 includes an end member 3a including the first end 31 or the second end 32 and a central member 3b including a central portion, and the end member 3a and the central member 3b are fitted together. May be. An example of the above configuration is shown in FIG.
- the power supply terminal 3 is composed of a plurality of flat plate end members 3a and a central member 3b having a recess 3c. And it can be set as the electric power feeding terminal 3 by fitting the edge part member 3a in the recessed part 3c of the center member 3b.
- the divided structure in the power supply terminal 3 is not limited to the configuration shown in FIG.
- the end member 3a may have an isosceles trapezoidal shape with a width narrowing toward the tip in plan view.
- the dimensions of the end member 3a and the central member 3b can be selected according to the distance between the inner walls 1d, in other words, the width of the opening 1b.
- the edge part member 3a and the center member 3b can be fastened by using the volt
- the fastening method is not limited to the above description.
- At least a part of the power supply terminal 3 may protrude in the radial direction from the outer periphery 1 a of the insulating member 1.
- a large current can be applied to the power supply terminal 3, and electrons, heavy particles, etc. moving in the space 4 can be accelerated or deflected efficiently. it can.
- the electromagnetic field control member 10 may include a metallized layer 8 on the inner wall 1d as shown in FIG. 2 (a).
- the brazing material does not come into direct contact with the insulating member 1, so that cracks to the insulating member 1 can be further suppressed.
- the metallized layer 8 may be located between the insulating member 1 and the conductive member 2.
- the end of the metallized layer 8 located near the inner periphery 1 c is in a region where the insulating member 1 and the conductive member 2 face each other. May be located.
- the metallized layer 8 includes, for example, a layer mainly composed of molybdenum and containing manganese. Further, a metal layer mainly composed of nickel may be provided on the surface of the metallized layer 8.
- the through hole may be a tapered surface in which the width between the inner walls 1d gradually increases from the inner periphery 1c of the insulating member 1 toward the outer periphery 1a.
- the angle (theta) which the inner wall 1d which opposes makes 12 degrees or more and 20 degrees or less may be sufficient as the angle (theta) which the inner wall 1d which opposes makes.
- the taper angle ⁇ is within this range, the mechanical strength of the insulating member 1 can be maintained, and cracks to the insulating member 1 can be further suppressed.
- the angle formed by the opposing inner walls 1d it may be measured in a cross section orthogonal to the axial direction, as shown in FIG.
- an insulating member made of cylindrical ceramics and having a plurality of through holes along the axial direction is prepared.
- a metallized layer or a metal layer may be provided in advance on the inner wall of the insulating member.
- the inner wall may be a tapered surface in which the width between the inner walls gradually increases from the inner periphery toward the outer periphery.
- the angle ⁇ formed by the opposing inner walls may be 12 ° or more and 20 ° or less.
- a rod-shaped conducting member made of metal is prepared. Then, after inserting the conducting member into the through hole of the insulating member, the insulating member and the conducting member are joined using a brazing material such as silver brazing (for example, BAg-8) to close the through hole of the insulating member. To do.
- a brazing material such as silver brazing (for example, BAg-8)
- the power supply terminal is disposed on the conductive member, and the power supply terminal is joined to the conductive member with a brazing material.
- the brazing material is unlikely to rise during brazing, and therefore contacts the inner wall of the insulating member.
- the risk of such wax accumulation is reduced.
- the power supply terminal is composed of a plurality of flat plate-like end members and a central member having a recess
- the central member may be fastened after the end members are joined first, or the end member and the center You may join after fastening a member.
- the electromagnetic field control member obtained by the manufacturing method described above is unlikely to crack on the inner wall of the insulating member even when heating and cooling are repeated in use. Therefore, the airtightness of the space located inside the insulating member can be maintained for a long time.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Electron Sources, Ion Sources (AREA)
- Particle Accelerators (AREA)
- Ceramic Products (AREA)
- Electromagnets (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
1a 外周
1b 開口部
1c 内周
1d 内壁
2 導通部材
3 給電端子
4 空間
5 電気伝送部材
6 ネジ
7 締結部材
7a ボルト
7b ナット
8 メタライズ層
9 フランジ
10 電磁場制御用部材
Claims (7)
- 筒状のセラミックスからなり、軸方向に沿った複数の貫通孔を有する絶縁部材と、
金属からなり、前記絶縁部材の外周に開口する開口部を有するように、前記貫通孔を閉塞する導通部材と、
該導通部材に接続される給電端子と、を備え、
該給電端子は、前記貫通孔を形成する前記絶縁部材の内壁から離れており、前記軸方向に第1端と第2端とを有し、
前記第1端および前記第2端の少なくとも一方は、前記給電端子の中央部分よりも前記内壁から離れている、電磁場制御用部材。 - 前記給電端子は、前記第1端または前記第2端を含む端部部材と、前記中央部分を含む中央部材を備えている、請求項1に記載の電磁場制御用部材。
- 前記端部部材は前記中央部材に嵌め合わされている、請求項2に記載の電磁場制御用部材。
- 前記給電端子は、少なくとも一部が、前記絶縁部材の外周より径方向に突出している、請求項1乃至請求項3のいずれか1つに記載の電磁場制御用部材。
- 前記内壁にメタライズ層を備えている、請求項1乃至請求項4のいずれか1つに記載の電磁場制御用部材。
- 前記貫通孔は、前記絶縁部材の内周から前記外周に向かって、前記内壁間の幅が漸増している、請求項1乃至請求項5のいずれか1つに記載の電磁場制御用部材。
- 前記貫通孔は、前記軸方向に直交する断面において、対向する前記内壁のなす角度が12°以上20°以下である、請求項6に記載の電磁場制御用部材。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201880019511.4A CN110431920B (zh) | 2017-03-24 | 2018-03-26 | 电磁场控制用部件 |
JP2019507053A JP6727404B2 (ja) | 2017-03-24 | 2018-03-26 | 電磁場制御用部材 |
KR1020197026753A KR102286843B1 (ko) | 2017-03-24 | 2018-03-26 | 전자장 제어용 부재 |
US16/497,281 US11380456B2 (en) | 2017-03-24 | 2018-03-26 | Electromagnetic field control member |
EP18771678.2A EP3606295B1 (en) | 2017-03-24 | 2018-03-26 | Electromagnetic field control member |
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JP2017059274 | 2017-03-24 | ||
JP2017-059274 | 2017-03-24 |
Publications (1)
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WO2018174298A1 true WO2018174298A1 (ja) | 2018-09-27 |
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PCT/JP2018/012047 WO2018174298A1 (ja) | 2017-03-24 | 2018-03-26 | 電磁場制御用部材 |
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US (1) | US11380456B2 (ja) |
EP (1) | EP3606295B1 (ja) |
JP (1) | JP6727404B2 (ja) |
KR (1) | KR102286843B1 (ja) |
CN (1) | CN110431920B (ja) |
WO (1) | WO2018174298A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2021040016A1 (ja) * | 2019-08-29 | 2021-03-04 | ||
WO2021040017A1 (ja) | 2019-08-30 | 2021-03-04 | 京セラ株式会社 | 電磁場制御用部材 |
JPWO2022014685A1 (ja) * | 2020-07-17 | 2022-01-20 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH065392A (ja) * | 1992-06-17 | 1994-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | 粒子加速器真空チェンバーの熱電対取り付け構造 |
JP2005174787A (ja) * | 2003-12-12 | 2005-06-30 | Japan Atom Energy Res Inst | シンクロトロン用セラミックスダクトの銅電鋳配線形成方法 |
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US4712074A (en) * | 1985-11-26 | 1987-12-08 | The United States Of America As Represented By The Department Of Energy | Vacuum chamber for containing particle beams |
JP4018997B2 (ja) * | 2003-02-25 | 2007-12-05 | 京セラ株式会社 | 粒子加速器用真空チャンバ |
DE102009032759B4 (de) * | 2009-07-11 | 2011-12-15 | Karlsruher Institut für Technologie | Vorrichtung zur Vermeidung von parasitären Schwingungen in Elektronenstrahlröhren |
CN106102300B (zh) * | 2016-07-29 | 2019-01-29 | 中国原子能科学研究院 | 增强超导回旋加速器中心区磁聚焦力的芯柱结构 |
WO2022014685A1 (ja) * | 2020-07-17 | 2022-01-20 | 京セラ株式会社 | 電磁場制御用部材 |
-
2018
- 2018-03-26 US US16/497,281 patent/US11380456B2/en active Active
- 2018-03-26 CN CN201880019511.4A patent/CN110431920B/zh not_active Expired - Fee Related
- 2018-03-26 WO PCT/JP2018/012047 patent/WO2018174298A1/ja active Application Filing
- 2018-03-26 EP EP18771678.2A patent/EP3606295B1/en active Active
- 2018-03-26 KR KR1020197026753A patent/KR102286843B1/ko active IP Right Grant
- 2018-03-26 JP JP2019507053A patent/JP6727404B2/ja active Active
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JPH065392A (ja) * | 1992-06-17 | 1994-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | 粒子加速器真空チェンバーの熱電対取り付け構造 |
JP2005174787A (ja) * | 2003-12-12 | 2005-06-30 | Japan Atom Energy Res Inst | シンクロトロン用セラミックスダクトの銅電鋳配線形成方法 |
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MITSUDA, SHIORI ET AL.: "DEVELOPMENT OF THE CERMIC CHMABER INTEGRATED PULSED MAGNET", THE 12TH PARTICLE ACCELERATOR SOCIETY OF JAPAN, 2015, pages 660 - 664, XP9516320, Retrieved from the Internet <URL:http://www.pasj.jp/cgi-bin/meetings/pasj2015/pdf_get.cgi?WEP0%2FWEP072%2FWEP072_Author.pdf> [retrieved on 20180604] * |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2021040016A1 (ja) * | 2019-08-29 | 2021-03-04 | ||
WO2021040016A1 (ja) * | 2019-08-29 | 2021-03-04 | 京セラ株式会社 | 電磁場制御用部材 |
EP4025017A4 (en) * | 2019-08-29 | 2023-10-04 | Kyocera Corporation | ELEMENT FOR CONTROLLING AN ELECTROMAGNETIC FIELD |
JP7203233B2 (ja) | 2019-08-29 | 2023-01-12 | 京セラ株式会社 | 電磁場制御用部材 |
CN114342565A (zh) * | 2019-08-30 | 2022-04-12 | 京瓷株式会社 | 电磁场控制用构件 |
JPWO2021040017A1 (ja) * | 2019-08-30 | 2021-03-04 | ||
JP7203234B2 (ja) | 2019-08-30 | 2023-01-12 | 京セラ株式会社 | 電磁場制御用部材 |
EP4025016A4 (en) * | 2019-08-30 | 2023-09-27 | Kyocera Corporation | ELECTROMAGNETIC FIELD CONTROL ELEMENT |
WO2021040017A1 (ja) | 2019-08-30 | 2021-03-04 | 京セラ株式会社 | 電磁場制御用部材 |
US11950351B2 (en) | 2019-08-30 | 2024-04-02 | Kyocera Corporation | Electromagnetic field control member |
WO2022014685A1 (ja) | 2020-07-17 | 2022-01-20 | 京セラ株式会社 | 電磁場制御用部材 |
JPWO2022014685A1 (ja) * | 2020-07-17 | 2022-01-20 | ||
JP7451708B2 (ja) | 2020-07-17 | 2024-03-18 | 京セラ株式会社 | 電磁場制御用部材 |
EP4185076A4 (en) * | 2020-07-17 | 2024-08-14 | Kyocera Corp | ELECTROMAGNETIC FIELD CONTROL ELEMENT |
Also Published As
Publication number | Publication date |
---|---|
CN110431920B (zh) | 2021-05-25 |
US11380456B2 (en) | 2022-07-05 |
EP3606295A4 (en) | 2020-07-22 |
US20200105433A1 (en) | 2020-04-02 |
EP3606295B1 (en) | 2021-08-04 |
EP3606295A1 (en) | 2020-02-05 |
KR20190117637A (ko) | 2019-10-16 |
KR102286843B1 (ko) | 2021-08-09 |
JPWO2018174298A1 (ja) | 2020-01-09 |
CN110431920A (zh) | 2019-11-08 |
JP6727404B2 (ja) | 2020-07-22 |
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