公开(公告)号：US06400061B1

公开(公告)日：2002-06-04

申请号：US09574310

申请日：2000-05-19

申请人： Kenji Inoue ,  Tsuguo Fukuda ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

发明人： Kenji Inoue ,  Tsuguo Fukuda ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

IPC分类号： H01L4108

CPC分类号： H03H9/02543

摘要： The present invention provides a piezoelectric substrate for a surface acoustic wave device which has high electromechanical coupling coefficient and low SAW velocity, and a surface acoustic wave device using the same. The present invention applies a single crystal comprising belonging to a point group 32 and having Ca3Ga2Ge4O14 type crystal structure. The basic component of the single crystal is comprised of La, Sr, Ta, Ga and O and is represented by the chemical formula: La3−xSrxTa0.5+0.5xGa5.5−0.5xO14. The composition ratio of Sr is preferably in the range of 0 x≦0.15, and more preferably in the range of 0.07 x≦0.08. The present invention also provides a surface acoustic wave device using that in which an interdigital finger electrode is formed in one main surface of the aforementioned piezoelectric substrate. When a cut angle of the substrate cut out of the single crystal and a propagation direction of surface acoustic waves are represented in terms of Euler angles (&phgr;, &thgr;, &psgr;), adequate characteristics can be obtained by selecting these angles.

摘要翻译： 本发明提供了一种具有高机电耦合系数和低SAW速度的表面声波装置的压电基片和使用该压电基片的表面声波装置。 本发明应用包含属于点组32并具有Ca 3 Ga 2 Ge 4 O 14型晶体结构的单晶。 单晶的基本成分由La，Sr，Ta，Ga和O组成，由化学式La3-xSrxTa0.5 + 0.5xGa5.5-0.5xO14表示。 Sr的组成比优选地在0℃的范围内。“CUSTOM-CHARACTER FILE =”20“ID =”CUSTOM-CHARACTER- 00001“/> x <= 0.15，更优选在0.07 x <= 0.08。 本发明还提供一种使用在上述压电基板的一个主表面上形成叉指指状电极的表面声波装置。 当从单晶切割的基板的切割角度和表面声波的传播方向以欧拉角（phi，θ，psi）表示时，通过选择这些角度可以获得足够的特性。

公开(公告)号：US06246149B1

公开(公告)日：2001-06-12

申请号：US09395103

申请日：1999-09-14

申请人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

发明人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

IPC分类号： H01L4104

CPC分类号： H03H9/02543 ,  C30B29/34 ,  C30B33/00

摘要： A surface acoustic wave device has a piezoelectric substrate whose properties include electromechanical coupling coefficient advantageous to widening passband width and SAW velocity advantageous to achieving a compact surface acoustic wave device. The piezoelectric substrate is composed of the single crystal represented by chemical formula Sr3TaGa3Si2O14 belonging to point group 32. For example, cut angle of the single crystal and propagation direction of the surface acoustic wave are in region 1-1, wherein said region 1-1 represented by Euler angles (&phgr;, &thgr;, &psgr;) satisfies &phgr;=25° ˜35°, &thgr;=20° ˜90°, &psgr;=−40° ˜40°. These angles may be in range 1-2, wherein said range 1-2 satisfies &phgr;=25° ˜35°, &thgr;=20° ˜90°, &psgr;=−25° ˜25°.

摘要翻译： 表面声波装置具有压电基板，其特性包括有利于扩大通带宽度和SAW速度的机电耦合系数，有利于实现紧凑的声表面波装置。 压电基板由属于点组32的化学式Sr 3 Ta Ga 3 Si 2 O 14表示的单晶构成。例如，单晶的切割角和声表面波的传播方向在区域1-1中，其中所述区域1-1 由欧拉角（phi，θ，psi）表示，满足phi = 25°〜35°，θ= 20°〜90°，psi = -40°〜40°。 这些角度可以在1-2范围内，其中所述范围1-2满足phi = 25°〜35°，θ= 20°〜90°，psi = -25°〜25°。

公开(公告)号：US06429570B1

公开(公告)日：2002-08-06

申请号：US09640492

申请日：2000-08-16

申请人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

发明人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Kiyoshi Uchida

IPC分类号： H01L4108

CPC分类号： H03H9/02543

摘要： A surface acoustic wave device includes a substrate and an inter-digital electrode on a surface of the substrate, wherein the substrate is formed by cutting out of a single crystal represented by a chemical formula, La&agr;Ta&bgr;Ga&ggr;O&dgr;(2.9≦&agr;≦3.1, 0.48≦&bgr;≦0.52, 5.4≦&ggr;≦5.6 and 8≦&dgr;≦14); a cut angle of the substrate cut out of the single crystal and a direction of propagation of surface acoustic waves on the substrate represented in terms of Euler's angles (&phgr;, &thgr;, &psgr;), &phgr;, &thgr; and &psgr; are found in one of a first area represented by −5 degrees≦&phgr;≦−5 degrees, 135 degrees≦&thgr;≦150 degrees and 20 degrees

摘要翻译： 声表面波装置包括在基板的表面上的基板和数字间电极，其中，通过切割由化学式LaalphaTabetaGagammaOdelta（2.9≤α= 3.1,0.48）表示的单晶而形成基板 <=β<= 0.52,5.4 <=γ<= 5.6和8 <=δ<= 14）; 以欧拉角（phi，θ，psi），phi，θ和psi表示的基板上切出的单晶的切割角和表面声波的传播方向在第一 由-5度<= phi <= - 5度，135度<=θ<= 150度和20度

公开(公告)号：US06452306B1

公开(公告)日：2002-09-17

申请号：US09952927

申请日：2001-09-14

申请人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki

发明人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki

IPC分类号： H01L4104

CPC分类号： H03H9/02543

摘要： A compact and wide band surface acoustic wave device for intermediate-frequency is disclosed. A piezoelectric substrate for use in a surface acoustic wave device having high electromechanical coupling factor and low SAW velocity is also disclosed. The surface acoustic wave device is constituted of a piezoelectric substrate 1 and inter-digital electrodes 2, 2 formed on the piezoelectric substrate 1. The piezoelectric substrate 1 has a crystal structure of Ca3Ga2Ge4O14 and is represented by the chemical formula, Sr3NbGa3Si2O14. A cut angle of the piezoelectric substrate 1 cut out of the single crystal and a direction of propagation of surface acoustic waves on the piezoelectric substrate represented in terms of Euler's angles (&phgr;, &thgr;, &psgr;) are found in one of a first area represented by −5°≦&phgr;≦15°, 0°≦&thgr;≦180°, and −50°≦&psgr;≦50° and a second area represented by 15°≦&phgr;≦30°, 0°≦&thgr;≦180°, and −40°≦&psgr;≦40°.

摘要翻译： 公开了一种用于中频的紧凑且宽带的声表面波装置。 还公开了一种用于具有高机电耦合系数和低SAW速度的表面声波装置中的压电基片。声表面波装置由压电基片1和形成在压电基片1上的数字间电极2,2构成 压电基板1具有Ca 3 Ga 2 Ge 4 O 14的晶体结构，由化学式Sr 3 Nb Ga 3 Si 2 O 14表示。 由欧姆角（phi，θ，psi）表示的压电基片1从单晶切割的角度和表面声波的传播方向在欧拉角（phi，θ，psi）表示的第一区域中， -5°<= phi <= 15°，0°<=θ<= 180°，-50°<= psi <= 50°，第二区由15°<= phi <= 30°，0° <=θ<= 180°，-40°<= psi <= 40°。

公开(公告)号：US06700300B2

公开(公告)日：2004-03-02

申请号：US09968820

申请日：2001-10-02

申请人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Jun Sato

发明人： Kenji Inoue ,  Katsuo Sato ,  Hiroki Morikoshi ,  Katsumi Kawasaki ,  Jun Sato

IPC分类号： H01L4108

CPC分类号： H03H9/02543

摘要： A compact and wide band surface acoustic wave device for intermediate-frequency is disclosed. A piezoelectric substrate for use in a surface acoustic wave device having high electromechanical coupling factor and low SAW velocity is also disclosed. The surface acoustic wave device is constituted of a piezoelectric substrate 1 and inter-digital electrodes 2, 2 formed on the piezoelectric substrate 1. The piezoelectric substrate 1 has a crystal structure of Ca3Ga2Ge4O14 and is represented by the chemical formula, Ca3TaGa3Si2O14. A cut angle of the piezoelectric substrate 1 cut out of the single crystal and a direction of propagation of surface acoustic waves on the piezoelectric substrate represented in terms of Euler's angles (&phgr;, &thgr;, &psgr;) are found in an area represented by −2.5°≦&phgr;≦2.5°, 30°≦&thgr;≦90°, and −65°≦&psgr;≦65°.

摘要翻译： 公开了一种用于中频的紧凑且宽带的声表面波装置。 还公开了一种用于具有高机电耦合系数和低SAW速度的表面声波装置中的压电基片。声表面波装置由压电基片1和形成在压电基片1上的数字间电极2,2构成 压电基板1具有Ca 3 Ga 2 Ge 4 O 14的晶体结构，由化学式Ca 3 Ta Ga 3 Si 2 O 14表示。 从欧姆角（phi，θ，psi）表示的压电基板上切出的压电基板1的切割角和压电基板上的表面声波的传播方向在-2.5° <= phi <= 2.5°，30°<=θ<= 90°，-65°<= psi <= 65°。

公开(公告)号：US20090175420A1

公开(公告)日：2009-07-09

申请号：US12318413

申请日：2008-12-29

申请人： Katsumi Kawasaki ,  Yutaka Inari ,  Hiroshi Chiba

发明人： Katsumi Kawasaki ,  Yutaka Inari ,  Hiroshi Chiba

IPC分类号： H01J35/10

CPC分类号： H01J35/26 ,  H01J2235/1046

摘要： To provide an X-ray generator capable of preventing electric corrosion and exerting stable performance over long periods. The X-ray generator includes: a rotary anticathode 1 having a rotary anticathode part 1a and a shaft part 1b; an anticathode accommodating case 2 including an air-tight case part 2a for keeping an area surrounding the rotary anticathode part in a vacuum atmosphere, and a journaling case part 2b for rotatively supporting the shaft part via a bearing; and an electric motor to rotatably drive the anticathode (target). A water-cooled jacket 7, through which cooling water for cooling the rotary anticathode part and the shaft part flows, is provided in the rotary anticathode. In the X-ray generator, an insulating bearing 18 of which at least one of an inner ring 18a, an outer ring 18b and a rolling element 18c is made of an insulating material is used as the bearing, and a conductive fiber brush 20 having a large number of conductive microfibers 22 serving as slide-contacting brush is arranged between opposing peripheral surfaces of the journaling case part of the anticathode accommodating case and the shaft part of the rotary anticathode, such that current is flown from the rotary anticathode to the anticathode accommodating case via the conductive fiber brush 20. In addition, pure water or ion-exchange water having low electric conductivity is used as cooling water flown through the water-cooled jacket.

摘要翻译： 提供能够防止电腐蚀并长时间运行稳定的X射线发生器。 X射线发生器包括：具有旋转止痛部1a和轴部1b的旋转阴极1; 包括用于在真空环境中保持围绕旋转止痛部分的区域的气密壳体部分2a的反阴极容纳壳体2以及用于通过轴承可旋转地支撑轴部的日志箱部分2b; 以及电动机来旋转地驱动所述止痛药（靶）。 在旋转阴极中设置有用于冷却旋转止痛部分和轴部分的冷却水流过的水冷套管7。 在X射线发生器中，使用由绝缘材料制成内环18a，外圈18b和滚动元件18c中的至少一个的绝缘轴承18作为轴承，并且具有导电纤维刷20 作为滑动接触刷的大量导电性微纤维22配置在防病
体容纳盒的收纳壳体部分的相对外周面与旋转阴
离子的轴部分之间，使得电流从旋转阴极流向抗电极 通过导电纤维刷20容纳壳体。此外，作为冷却水被使用通过水冷套管，具有低导电性的纯水或离子交换水被使用。

公开(公告)号：US08243885B2

公开(公告)日：2012-08-14

申请号：US12318413

申请日：2008-12-29

申请人： Katsumi Kawasaki ,  Yutaka Inari ,  Hiroshi Chiba

发明人： Katsumi Kawasaki ,  Yutaka Inari ,  Hiroshi Chiba

IPC分类号： H01J35/10

CPC分类号： H01J35/26 ,  H01J2235/1046

摘要： To provide an X-ray generator capable of preventing electric corrosion and exerting stable performance over long periods. The X-ray generator includes: a rotary anticathode having a rotary anticathode part and a shaft part; an anticathode accommodating case including an air-tight case part for keeping an area surrounding the rotary anticathode part in a vacuum atmosphere, and a journaling case part for rotatively supporting the shaft part via a bearing; and an electric motor to rotatably drive the anticathode (target). A water-cooled jacket, through which cooling water for cooling the rotary anticathode part and the shaft part flows, is provided in the rotary anticathode. In the X-ray generator, an insulating bearing of which at least one of an inner ring, an outer ring and a rolling element is made of an insulating material is used as the bearing, and a conductive fiber brush having a large number of conductive microfibers serving as slide-contacting brush is arranged between opposing peripheral surfaces of the journaling case part of the anticathode accommodating case and the shaft part of the rotary anticathode, such that current is flown from the rotary anticathode to the anticathode accommodating case via the conductive fiber brush. In addition, pure water or ion-exchange water having low electric conductivity is used as cooling water flown through the water-cooled jacket.

摘要翻译： 提供能够防止电腐蚀并长时间运行稳定的X射线发生器。 X射线发生器包括：具有旋转防阴极部分和轴部分的旋转阴极; 包括用于将旋转止痛部分的周围区域保持在真空气氛中的气密壳体部分和用于通过轴承可旋转地支撑所述轴部的日志箱部分的反阴极容纳壳体; 以及电动机来旋转地驱动所述止痛药（靶）。 在旋转阴极中设置有用于冷却旋转阴极部和轴部的冷却水的水冷套。 在X射线发生器中，使用由绝缘材料制成内环，外圈和滚动元件中的至少一个的绝缘轴承作为轴承，并且具有大量导电性的导电性纤维刷 用作滑动接触刷子的微纤维布置在防电器容纳盒的记录壳体部分的相对的外围表面和旋转阴极的轴部分之间，使得电流经由导电纤维从旋转抗电极流到抗阴茎容纳壳体 刷。 此外，作为通过水冷套管的冷却水，使用导电性低的纯水或离子交换水。

公开(公告)号：US06413442B1

公开(公告)日：2002-07-02

申请号：US09860573

申请日：2001-05-21

申请人： Jun Sato ,  Katsumi Kawasaki

发明人： Jun Sato ,  Katsumi Kawasaki

IPC分类号： C04B3526

摘要： A method of producing a single crystal of the composition M3NbGa3Si2O14 (where M is an alkaline earth metal) comprising growing in a lattice direction inclined at an angle of 50.8 to 90 degrees from a [001] axis. The single crystal obtained in this way may be suitably used as a component of a resonator, filter, or other various piezoelectric elements.

公开(公告)号：US09424968B2

公开(公告)日：2016-08-23

申请号：US13351722

申请日：2012-01-17

申请人： Tomokazu Ishikura ,  Michihiro Muramoto ,  Akihiro Harada ,  Katsumi Kawasaki ,  Tomofumi Kuroda

发明人： Tomokazu Ishikura ,  Michihiro Muramoto ,  Akihiro Harada ,  Katsumi Kawasaki ,  Tomofumi Kuroda

IPC分类号： H01Q13/00 ,  C04B35/00 ,  B05D5/12 ,  H01F1/10 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q5/00 ,  H01Q9/42 ,  C04B35/26 ,  C04B35/626 ,  C04B38/00 ,  C04B111/00

CPC分类号： H01F1/10 ,  C04B35/2633 ,  C04B35/2641 ,  C04B35/2683 ,  C04B35/62685 ,  C04B38/00 ,  C04B2111/00844 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3232 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3263 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/767 ,  C04B2235/786 ,  H01Q1/243 ,  H01Q1/364 ,  H01Q5/00 ,  H01Q9/42 ,  C04B35/26

摘要： A magnetic material for antennas including: an M-type hexagonal ferrite represented by the following general formula (1) as a main phase, MA.Fe12-x.MBx.O19 (wherein MA is at least one kind selected from the group consisting of Sr and Ba, MB is MC or MD, MC is at least one kind selected from the group consisting of Al, Cr, Sc and In, MD is an equivalent mixture of at least one kind selected from the group consisting of Ti, Sn and Zr and at least one kind selected from the group consisting of Ni, Zn, Mn, Mg, Cu and Co, X is a number from 1 to 5), and an average crystal particle diameter is equal to or greater than 5 μm.

摘要翻译： 一种用于天线的磁性材料，包括：作为主相的由以下通式（1）表示的M型六方晶系铁氧体：MA.Fe12-x.MBx.O19（其中MA是选自以下的至少一种： Sr和Ba，MB是MC或MD，MC是选自Al，Cr，Sc和In中的至少一种，MD是选自Ti，Sn和 Zr和选自Ni，Zn，Mn，Mg，Cu和Co中的至少一种，X为1至5的数），平均晶体粒径等于或大于5μm。