WO2004077600A1 - 超伝導体伝送線路 - Google Patents
超伝導体伝送線路 Download PDFInfo
- Publication number
- WO2004077600A1 WO2004077600A1 PCT/JP2003/002087 JP0302087W WO2004077600A1 WO 2004077600 A1 WO2004077600 A1 WO 2004077600A1 JP 0302087 W JP0302087 W JP 0302087W WO 2004077600 A1 WO2004077600 A1 WO 2004077600A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission line
- conductor
- superconductor
- dielectric block
- oxide superconductor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49014—Superconductor
Definitions
- the present invention relates to a transmission line using an oxide superconductor which has a low loss and can cope with a large current.
- a coaxial transmission line having a grounded outer conductor around a center conductor is known.
- An electric field is generated from the center conductor to the external ground conductor.
- the magnetic field is generated in a direction perpendicular to the electric field.
- the current flows in the direction in which the center conductor and external ground conductor extend.
- the center conductor may have a hollow structure.
- 4 (A) to 4 (C) are perspective views schematically showing an example of the structure of a transmission line according to the related art.
- the cylindrical central conductor 101 and the cylindrical external ground conductor 102 are electrically separated by a dielectric block 104.
- a dielectric block 104 select a material with low high-frequency loss. If a material having a high dielectric constant is used, the size of the transmission line can be reduced.
- the external ground conductor 102 and the center conductor 101 are formed of normal conductors such as Cu, Ag, and Au. Since the current flowing through the center conductor 101 flows near the surface, the center conductor 101 may have a cylindrical hollow structure. In that case, the thickness should be at least twice the skin thickness. When the center conductor 101 has a hollow structure, the hollow portion may be filled with a dielectric 103.
- the conductor is formed of a superconductor, the resistance of the superconductor line is 0 at DC and very small even at high frequencies, so it is possible to form a transmission line with low loss and large current. .
- Oxide superconductors become superconductive at relatively high temperatures, is there.
- Oxide superconductors unlike metal conductors, have very sensitive electrical properties to the structure of grain boundaries. Most oxide superconductors have a rectangular parallelepiped crystal structure. If the crystal axis directions of adjacent rectangular parallelepipeds are different from each other by several degrees, a crystal grain boundary will be generated at that part.
- the dielectric block 103 is made of a single crystal, and an oxide superconductor is epitaxially grown on the arc-shaped outer surface to make the external ground conductor 102.
- an oxide superconductor layer epitaxially.
- FIG. 4B shows another form of the transmission line.
- An outer ground conductor 102 of an oxide superconductor is formed on the outer peripheral surface of a quadrangular prism-shaped dielectric block 104 which is preferably a single crystal.
- the dielectric block 104 has an inner hole having a circular cross section, and the center conductor 101 is accommodated in the inner hole.
- the central conductor 101 may have a hollow structure, and the dielectric 103 may be accommodated in the hollow portion. It is also possible to adopt a mere hollow structure instead of the dielectric filling structure.
- Fig. 4 (C) shows another form of the transmission line.
- the dielectric block 104 which is preferably a single crystal, has a quadrangular prism shape, and further has a quadrangular prism inner hole.
- An external ground conductor 102 is formed on the outer peripheral surface of the square pillar, and a central conductor 101 is formed on the inner wall of the square pillar-shaped inner hole.
- the central conductor 101 has a hollow shape, and the dielectric 103 may be accommodated in the hollow portion.
- the outer ground conductor 102 and the center conductor 101 are formed of an oxide superconductor.
- the external ground conductor 102 in FIG. 4 (B), the center conductor 101 and the external ground conductor 102 in FIG. 4 (C) are formed on the flat surface of the single-crystal dielectric block 104. I have. However, even when the oxide superconductor layer is epitaxially grown, the oxide superconductor on the adjacent surface is in contact at the corners of the quadrangular prism, and if the crystal orientation is different, the generation of grain boundaries is avoided. I can't. Then, a loss occurs and it becomes difficult to flow a large current. It is possible to obtain an epitaxy layer or a layer close to a single crystal on the lower surface of the plane, but the generation of grain boundaries cannot be avoided at the four corners. Disclosure of the invention An object of the present invention is to provide a transmission line using an oxide superconductor capable of coping with a low loss and a large current.
- an inner conductor and four surfaces surrounding the inner conductor, each having a shape in which each corner of a hollow quadrilateral is removed, and ⁇ between adjacent surfaces.
- a superconductor transmission line is provided, comprising: an outer conductor formed of an oxide superconductor in which a slit less than ⁇ 4 (where ⁇ is the wavelength of the transmitted high frequency) is formed.
- FIG. 1 is a perspective view and a sectional view showing a transmission line according to an embodiment of the present invention.
- FIG. 2 is a perspective view and a sectional view showing a transmission line according to another embodiment of the present invention.
- FIG. 3 is a perspective view showing an application example of the transmission lines of FIGS.
- FIG. 4 is a perspective view showing a configuration of a transmission line according to a conventional technique.
- FIGS. 1A to 1F are a perspective view and a sectional view schematically showing a configuration of a transmission line according to an embodiment of the present invention.
- Figure 1 ( ⁇ ) shows the first basic structure.
- the outer conductors 2-1 to 2-4 of the four oxide superconductor layers on the plane are arranged so as to surround the inner periphery of the cylindrical inner conductor 1.
- a gap 10 is formed between the center conductor 1 and the outer conductors 2-1 to 2-4. Since the four superconductor layers 2-1 to 2-4 have a planar shape, they can be formed of an oxide superconductor having good crystallinity.
- FIG. 1 ( ⁇ ) shows one mode for realizing the configuration of FIG. 1 ( ⁇ ).
- Square cylindrical dielectrics blocks 4 are magnesium oxide (M g O), lanthanum aluminate one preparative (L a A 1 0 3) , sapphire (A 1 2 0 3) low loss, such as, a high dielectric constant of the material Single crystal shape Is done.
- an MgO block having a rectangular outer periphery, each outer peripheral surface being constituted by a (100) plane, and having an inner hole having a circular cross section is used.
- the oxide superconductor layers 2-;!-2-4 are formed separately on the four flat outer peripheral surfaces. Good electric conductors such as Ag, Au, Cu and A1 and superconducting wires 1 are inserted into the inner hole of the circular cross section.
- FIG. 1 (C) shows a first method for forming the oxide superconductor layers 2-1 to 2-4 as shown in FIG. 1 (B).
- a liquid-phase oxide superconductor material is formed on the outer peripheral surface of the single-crystal dielectric block 4 by a coating method such as dip coating or screen printing.
- oxide superconductors Bi (Pb) -Sr-Ca-Cu-0, YBa-Cu-O (YBCO), RE_Ba-Cu-O (RE: La, Nd, Sm, Eu, Gd, Dy, Er, Tm, Yb, Lu) are preferably selected.
- the oxide superconductor layer By firing the oxide superconductor layer at a high temperature, the oxide superconductor layer is crystallized in a solid phase, and superconductivity appears.
- the thickness of the superconductor layer to be formed should be 0.5 m or more in order to obtain good high-frequency characteristics and large current capability.
- crystal grain boundaries are likely to occur at each corner of the hollow square cross section.
- the oxide superconductor layer on the corners is ground together with the underlying dielectric block by a mechanical method such as filing the corner of the dielectric block on which the oxide superconductor layer is formed, or cutting it out with a cutting machine. Remove. By removing the oxide superconductor layer at the corner where the crystallinity is easily disturbed, four oxide superconductor layers having good crystallinity remain on the four outer peripheral surfaces of the dielectric block 4.
- the slit width between the adjacent oxide superconductor layers is set to be less than ⁇ 4 so that the transmitted high frequency does not leak.
- ⁇ is the wavelength of the transmitted high frequency. If there are multiple wavelengths, it is the shortest wavelength. If a dielectric exists between the inner conductor and the outer conductor, this is the effective wavelength in the space where the high frequency exists.
- FIG. 1 (D) shows a second method of forming a separated oxide superconductor layer.
- Each corner of the rectangular cross section of the dielectric block 4 is chamfered in advance.
- An oxide superconductor material layer is applied on the flat outer peripheral surface of the dielectric block 4 by a printing method. By firing the oxide superconductor material layer at a high temperature, four oxide superconductor layers 2-1 to 2-4 can be formed.
- FIG. 1E shows a third form of the transmission line.
- Four external ground conductors 2-1 to 2-4 are arranged to face the center conductor 1 via an air gap.
- the four oxide superconductor layers 2-1 to 2-4 may be formed using a plate material. Further, as shown in the figure, the oxide superconductor layers 2-1 to 2-4 can be formed on the plate-like supporting substrates 6-1 to 6_4.
- the plate-shaped supporting substrate 6-1 to 6-4 is made of magnesium oxide, lanthanum aluminate, sapphire, strontium oxide, cerium oxide, titanium oxide, silver, gold, nickel, nickel oxide, nickel alloy, etc. It is preferable to select the material superconductor layer from a material that can be epitaxially grown. When the oxide superconducting conductor layer is formed in a film shape, it is preferable that the film thickness is 0.5 m or more in order to obtain high frequency characteristics and large current capability.
- the center conductor 1 may have a hollow structure.
- the dielectric block 3 may be arranged inside the hollow structure.
- 2 (A) to 2 (D) show other forms of the transmission line.
- FIG. 2A shows the second basic structure.
- the center conductor is formed of four flat planar oxide superconductor layers 1-1-1-4, and the external ground conductor is also composed of four flat planar oxide superconductor layers 2-1-1-2_. 4 formed.
- a gap 10 is formed between the plate-shaped center conductor 1 and the plate-shaped outer conductor 2.
- FIG. 2B shows a first mode for realizing the transmission line shown in FIG. 2A.
- the dielectric block 4 is made of low-loss magnesium oxide, lanthanum aluminate, sapphire, etc. It is made of a dielectric material with a high dielectric constant, and has a square pillar shape.
- the dielectric block 4 further has a quadrangular prism-shaped inner hole having a quadrangular cross section at the center thereof.
- Four oxide superconductor layers 2-1 to 2-4 are formed on the outer peripheral surface of the dielectric block 4, and four oxide superconductors are also formed on the inner wall of the inner hole having a rectangular cross section. Layers 11-1 to 11-4 are formed.
- Such an oxide superconductor layer is formed, for example, by applying an oxide superconductor material layer on the outer peripheral surface of the dielectric block 4 and the inner wall of the inner hole by dip coating, and sintering it at a high temperature. This can be achieved by removing the corners with a file, cutting machine, or the like.
- the distance between adjacent oxide superconductor layers is preferably less than ⁇ 4 to prevent electric field leakage.
- the thickness is preferably 0.5 zm or more.
- FIG. 2C shows another configuration for realizing the configuration of FIG. 2A.
- the center conductor is composed of oxide superconductor layers 11 1 to 11 14 formed separately on the four outer peripheral surfaces of the quadrangular prism-shaped inner dielectric block 3.
- Such an oxide superconductor layer can be formed in the same manner as described with reference to FIGS. 1 (C) and 1 (D).
- the oxide superconductor plates 2-1 to 2-4 are arranged around the center conductor thus formed.
- the interval between adjacent oxide superconductor plates 2-1 to 2-4 is less than ⁇ 4.
- FIG. 2 (D) shows a case where the external ground conductor of the oxide superconductor is formed of an oxide superconductor film formed on a base substrate, as in FIG. 1 ( ⁇ ).
- the outer conductors 2-1 to 2-4 are the same as the outer conductors described in the configuration of FIG.
- the center conductors 111 to 114 are the same as those described in the configuration of FIG. 2 (C).
- FIG. 3 illustrates an example of how to use the transmission line thus formed.
- the transmission line 20 is cut out at a length L, and the resonance frequency is set by the length L.
- a high-frequency input probe 7 is arranged at one end of the transmission line 20, and a high-frequency output probe 8 is arranged at the other end.
- the high-frequency signal supplied from the high-frequency input probe 7 to the transmission line 20 is coupled to the high-frequency output probe 8 through a resonator having a length L.
- a resonator having a length L.
- the conductor part Is composed of an epitaxial superconducting film without grain boundaries, so that a cable with low loss and high current capability can be realized.
- the loss can be reduced to about 1/100 of the conventional value. If the cross section is rectangular, electromagnetic fields, currents, stresses, etc. concentrate at the four corners. Therefore, providing slits at the four corners also has the effect of alleviating them.
- the current flows through the surface of the center conductor on the side of the externally installed conductor (in the case of a superconductor, it is about twice the magnetic penetration length and has almost no frequency dependence). (In the case of a superconductor, it is about twice as long as the magnetic penetration length, and there is almost no frequency dependence), so the heat load at the time of the protection quench is placed inside the center conductor and outside the external ground conductor side.
- a metal layer or the like for prevention may be provided.
- a non-epitaxial superconducting film having crystal grain boundaries can be uniformly formed over the entire surface, so that the current capacity can be increased and high-speed interruption can be achieved.
- a large heat load may be applied at the time of current limiting, but this can be mitigated by providing a high thermal conductive layer such as a metal inside the center conductor or outside the external ground conductor.
- a larger capacity current limiter can be achieved.
- the present invention has been described in connection with the embodiments.
- the present invention is not limited to these embodiments.
- other materials may be used for the oxide superconductor, the support substrate, and the dielectric block. It will be apparent to those skilled in the art that various other modifications, improvements, and combinations are possible.
- a superconductor transmission line comprising: an outer conductor formed of an oxide superconductor;
- the oxide superconductor is composed of Bi (Pb) -Sr-Ca-Cu-O, YBa-Cu-O, RE-Ba-Cu-O (RE: La Nd, Sm , Eu, Gd, Dy, Er, Tm, Yb, Lu).
- the dielectric block has four flat surfaces extending in the longitudinal direction.
- the inner conductor has four surfaces formed on the four flat inner walls, and a slit of less than ⁇ / 4 is formed between the adjacent surfaces.
- the superconductor transmission line according to any one of supplementary notes 4 to 6, wherein the superconductor transmission line is formed of an oxide superconductor.
- the support member is formed of any one of magnesium oxide, lanthanum aluminate, sapphire, strontium oxide, cerium oxide, titanium oxide, silver, gold, nickel, nickel oxide, and a nickel alloy.
- Superconductor transmission line The supplementary note 9, wherein the support member is formed of any one of magnesium oxide, lanthanum aluminate, sapphire, strontium oxide, cerium oxide, titanium oxide, silver, gold, nickel, nickel oxide, and a nickel alloy.
- the inner conductor has four surfaces each having a hollow cross-section with a rectangular shape in which each corner is removed, and a slit of less than 4 is formed between adjacent surfaces.
- a method for manufacturing an oxide superconductor transmission line including:
- a liquid-phase oxide superconductor material is An additional step including a step of applying the outer peripheral surface of the lock and a step of firing the applied material layer
- step (a) comprises forming an oxide superconductor layer on the dielectric block by either sputtering or vapor deposition.
- a method for manufacturing an oxide superconductor transmission line including:
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- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Waveguides (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB038257106A CN1317792C (zh) | 2003-02-25 | 2003-02-25 | 超导体传输线路 |
JP2004568732A JP3795904B2 (ja) | 2003-02-25 | 2003-02-25 | 超伝導体伝送線路 |
DE10393568T DE10393568B4 (de) | 2003-02-25 | 2003-02-25 | Supraleiter-Übertragungsleitung |
PCT/JP2003/002087 WO2004077600A1 (ja) | 2003-02-25 | 2003-02-25 | 超伝導体伝送線路 |
AU2003211712A AU2003211712A1 (en) | 2003-02-25 | 2003-02-25 | Superconductor transmission line |
US11/203,956 US7263392B2 (en) | 2003-02-25 | 2005-08-16 | Superconductor transmission line having slits of less than λ /4 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/002087 WO2004077600A1 (ja) | 2003-02-25 | 2003-02-25 | 超伝導体伝送線路 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/203,956 Continuation US7263392B2 (en) | 2003-02-25 | 2005-08-16 | Superconductor transmission line having slits of less than λ /4 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004077600A1 true WO2004077600A1 (ja) | 2004-09-10 |
Family
ID=32923073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/002087 WO2004077600A1 (ja) | 2003-02-25 | 2003-02-25 | 超伝導体伝送線路 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7263392B2 (ja) |
JP (1) | JP3795904B2 (ja) |
CN (1) | CN1317792C (ja) |
AU (1) | AU2003211712A1 (ja) |
DE (1) | DE10393568B4 (ja) |
WO (1) | WO2004077600A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013517706A (ja) * | 2010-01-15 | 2013-05-16 | ディー−ウェイブ システムズ,インコーポレイテッド | 超伝導集積回路のためのシステムおよび方法 |
WO2014002758A1 (ja) * | 2012-06-29 | 2014-01-03 | 株式会社 村田製作所 | 伝送線路 |
US11423115B2 (en) | 2014-03-12 | 2022-08-23 | D-Wave Systems Inc. | Systems and methods for removing unwanted interactions in quantum devices |
US11494683B2 (en) | 2017-12-20 | 2022-11-08 | D-Wave Systems Inc. | Systems and methods for coupling qubits in a quantum processor |
US11526463B2 (en) | 2004-12-23 | 2022-12-13 | D-Wave Systems Inc. | Analog processor comprising quantum devices |
US11816536B2 (en) | 2007-04-05 | 2023-11-14 | 1372934 B.C. Ltd | Physical realizations of a universal adiabatic quantum computer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006001162A1 (ja) * | 2004-06-25 | 2006-01-05 | Matsushita Electric Industrial Co., Ltd. | 電気機械フィルタ |
DE102014215780A1 (de) * | 2014-08-08 | 2016-02-11 | Siemens Aktiengesellschaft | Anordnung und Verfahren zur Kurzschlussstrombegrenzung mittels Supraleiter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS59132513A (ja) * | 1983-01-18 | 1984-07-30 | 株式会社フジクラ | 強制冷却型超電導線のセパレ−タの形成方法 |
JPS63245823A (ja) * | 1987-03-31 | 1988-10-12 | Toshiba Corp | 超電導線 |
JPH11329106A (ja) * | 1998-05-20 | 1999-11-30 | Idotai Tsushin Sentan Gijutsu Kenkyusho:Kk | 同軸ケーブル |
Family Cites Families (7)
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US3612742A (en) * | 1969-02-19 | 1971-10-12 | Gulf Oil Corp | Alternating current superconductive transmission system |
JPS6444104A (en) * | 1987-08-12 | 1989-02-16 | Nippon Telegraph & Telephone | Superconduction cavity resonator and its manufacture |
FR2658955B1 (fr) * | 1990-02-26 | 1992-04-30 | Commissariat Energie Atomique | Resonateur coaxial a capacite d'accord repartie. |
EP0646554A1 (de) * | 1993-10-04 | 1995-04-05 | Hoechst Aktiengesellschaft | Massivteile aus Hochtemperatur-Supraleiter-Material |
US6083883A (en) * | 1996-04-26 | 2000-07-04 | Illinois Superconductor Corporation | Method of forming a dielectric and superconductor resonant structure |
JP3465627B2 (ja) * | 1999-04-28 | 2003-11-10 | 株式会社村田製作所 | 電子部品、誘電体共振器、誘電体フィルタ、デュプレクサ、通信機装置 |
JP4225661B2 (ja) | 2000-01-28 | 2009-02-18 | 富士通株式会社 | 超伝導フィルタ |
-
2003
- 2003-02-25 WO PCT/JP2003/002087 patent/WO2004077600A1/ja active Application Filing
- 2003-02-25 JP JP2004568732A patent/JP3795904B2/ja not_active Expired - Fee Related
- 2003-02-25 AU AU2003211712A patent/AU2003211712A1/en not_active Abandoned
- 2003-02-25 CN CNB038257106A patent/CN1317792C/zh not_active Expired - Fee Related
- 2003-02-25 DE DE10393568T patent/DE10393568B4/de not_active Expired - Fee Related
-
2005
- 2005-08-16 US US11/203,956 patent/US7263392B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59132513A (ja) * | 1983-01-18 | 1984-07-30 | 株式会社フジクラ | 強制冷却型超電導線のセパレ−タの形成方法 |
JPS63245823A (ja) * | 1987-03-31 | 1988-10-12 | Toshiba Corp | 超電導線 |
JPH11329106A (ja) * | 1998-05-20 | 1999-11-30 | Idotai Tsushin Sentan Gijutsu Kenkyusho:Kk | 同軸ケーブル |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11526463B2 (en) | 2004-12-23 | 2022-12-13 | D-Wave Systems Inc. | Analog processor comprising quantum devices |
US11816536B2 (en) | 2007-04-05 | 2023-11-14 | 1372934 B.C. Ltd | Physical realizations of a universal adiabatic quantum computer |
JP2013517706A (ja) * | 2010-01-15 | 2013-05-16 | ディー−ウェイブ システムズ,インコーポレイテッド | 超伝導集積回路のためのシステムおよび方法 |
US9355365B2 (en) | 2010-01-15 | 2016-05-31 | D-Wave Systems Inc. | Systems and methods for superconducting integrated circuits |
WO2014002758A1 (ja) * | 2012-06-29 | 2014-01-03 | 株式会社 村田製作所 | 伝送線路 |
JP5674076B2 (ja) * | 2012-06-29 | 2015-02-25 | 株式会社村田製作所 | 伝送線路 |
JPWO2014002758A1 (ja) * | 2012-06-29 | 2016-05-30 | 株式会社村田製作所 | 伝送線路 |
US9553347B2 (en) | 2012-06-29 | 2017-01-24 | Murata Manufacturing Co., Ltd. | Transmission line |
US11423115B2 (en) | 2014-03-12 | 2022-08-23 | D-Wave Systems Inc. | Systems and methods for removing unwanted interactions in quantum devices |
US11494683B2 (en) | 2017-12-20 | 2022-11-08 | D-Wave Systems Inc. | Systems and methods for coupling qubits in a quantum processor |
Also Published As
Publication number | Publication date |
---|---|
JP3795904B2 (ja) | 2006-07-12 |
DE10393568T5 (de) | 2005-09-01 |
JPWO2004077600A1 (ja) | 2006-06-08 |
AU2003211712A1 (en) | 2004-09-17 |
CN1317792C (zh) | 2007-05-23 |
US20050272609A1 (en) | 2005-12-08 |
US7263392B2 (en) | 2007-08-28 |
CN1717836A (zh) | 2006-01-04 |
DE10393568B4 (de) | 2007-12-20 |
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