公开(公告)号：US06534897B2

公开(公告)日：2003-03-18

申请号：US09934524

申请日：2001-08-23

申请人： Masao Takeuchi ,  Kenji Inoue ,  Katsuo Sato

发明人： Masao Takeuchi ,  Kenji Inoue ,  Katsuo Sato

IPC分类号： H03H925

CPC分类号： H03H9/0259 ,  H03H9/02543 ,  H03H9/14505

摘要： The invention is to realize a surface acoustic wave device that attains a wide band and a small size, and lowers a loss by utilizing the natural single-phase unidirectional transducer characteristics. The surface acoustic wave device comprises a piezoelectric substrate (1) and a pair of interdigitated electrodes (2) provided on one main surface of the piezoelectric substrate 1. As the material of the piezoelectric substrate (1), a single crystal is used that belongs to the point group 32, has the Ca3Ga2Ge4O14 type crystalline structure, comprises La, Ta, Ga and O as main components, and is represented by a chemical formula La3Ta0.5Ga5.5O14. When the cut angle of the substrate (1) and the propagation direction are represented by Eulerian angles (&phgr;, &thgr;, &psgr;), &phgr;, &thgr; and &psgr; are in a first region where &phgr; is from −5° to 5°, &thgr; is from 135° to 155°, and &psgr; is from 15° to 40°, or in a second region where &phgr; is from 10° to 20°, &thgr; is from 140° to 157°, and &psgr; is from 30° to 60°.

摘要翻译： 本发明旨在实现一种具有宽带和小尺寸的表面声波器件，并且通过利用天然单相单向传感器特性降低损耗。声表面波器件包括压电基片（1）和一对 设置在压电基板1的一个主表面上的交错电极（2）。作为压电基板（1）的材料，使用属于点组32的单晶，具有Ca 3 Ga 2 Ge 4 O 14型晶体结构，包括La ，Ta，Ga和O为主要成分，由化学式La3Ta0.5Ga5.5O14表示。 当基板（1）的切割角度和传播方向由欧拉角（phi，θ，psi）表示时，phi，θ和psi在第一区域，其中phi为-5°至5°，θ为 从135°至155°，psi为15°至40°，或在第二区域，其中phi为10°至20°，θ为140°至157°，psi为30°至60° 。

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：US6005325A

公开(公告)日：1999-12-21

申请号：US824091

申请日：1997-03-25

申请人： Kenji Inoue ,  Katsuo Sato

发明人： Kenji Inoue ,  Katsuo Sato

IPC分类号： H03H9/02 ,  H01L41/08

CPC分类号： H03H9/02834 ,  H03H9/0259

摘要： In a surface acoustic wave device comprising an inter-digital electrode on a surface of a substrate wherein said substrate is a langasite single crystal belonging to a point group 32, a combination of a cut angle of the substrate out of the single crystal and-a propagation direction of surface acoustic waves is optimized. This makes it possible to achieve a surface acoustic wave device comprising a substrate having a temperature coefficient of SAW velocity, TCV, the absolute value of which is small, a large electromechanical coupling factor k.sup.2, and low SAW velocity. It is thus possible to achieve a filter device which is improved in terms of temperature stability, has a wide passband, and is reduced in size, especially an intermediate-frequency surface acoustic wave filter having improved characteristics best-fitted for mobile communication terminal equipment.

摘要翻译： 在包括在基板表面上的数字间电极的表面声波装置中，其中所述基板是属于点组32的朗氏单晶，单晶中的基板的切割角与-a 表面声波的传播方向被优化。 这使得可以实现包括具有SAW速度的温度系数，绝对值小的TCV，大的机电耦合系数k2和低的SAW速度的基板的表面声波装置。 因此，可以实现在温度稳定性，通带宽度大，尺寸减小的特别是具有最佳适用于移动通信终端设备的特性的中频声表面波滤波器的滤波器装置。

公开(公告)号：US5122638A

公开(公告)日：1992-06-16

申请号：US759439

申请日：1991-09-13

申请人： Katsuo Sato ,  Koji Ozawa ,  Isao Suzuki ,  Mikio Yoshi-numa

发明人： Katsuo Sato ,  Koji Ozawa ,  Isao Suzuki ,  Mikio Yoshi-numa

IPC分类号： G02B6/255

CPC分类号： G02B6/2551

摘要： An optical fiber fusion splicer includes a discharge unit for producing an electric discharge to fusion splice optical fibers and a pressure sensor for producing a pressure detection signal representing the surrounding atmospheric pressure. In response to the pressure detection signal the discharge is controlled by a control unit so that a substantially optimum discharge current for the fusion splicing is provided to the discharge unit. The discharge control unit includes an adjusting unit for producing a discharge current adjusting signal, a control signal generating unit for generating a control signal on the basis of both the pressure detection signal and the discharge current adjusting signal, and a discharge current control unit for controlling the discharge current in response to the control signal.

摘要翻译： 光纤熔接机包括用于产生对熔接光纤的放电的放电单元和用于产生表示周围大气压的压力检测信号的压力传感器。 响应于压力检测信号，放电由控制单元控制，使得用于熔接的基本上最佳的放电电流被提供给放电单元。 放电控制单元包括用于产生放电电流调节信号的调节单元，用于基于压力检测信号和放电电流调节信号产生控制信号的控制信号产生单元和用于控制的放电电流控制单元 放电电流响应控制信号。

公开(公告)号：USRE33809E

公开(公告)日：1992-01-28

申请号：US307522

申请日：1989-02-08

申请人： Shigeo Okada ,  Katsuo Sato

发明人： Shigeo Okada ,  Katsuo Sato

IPC分类号： F16B13/14 ,  F16B13/12

CPC分类号： F16B13/124

摘要： A fastener, comprising an expander part having a saucer-shaped head and a shank extending from the head and formed with a male thread thereon, and a fastener part having a flange and opposite stem portions branched from the back of the flange and connecting through hinge portions to guide portions which join each other at the other ends thereof, the expander part and fastener part each being made of a resin, the fastener part having a circular bore extending from the flange to the stem portions to permit the expander part to be inserted in and temporarily retained in the stem portions, the circular bore having therein opposite bulges positioned ahead of the hinge portions to spread the stem portions outward away from each other when the expander part is pushed.

公开(公告)号：US4672524A

公开(公告)日：1987-06-09

申请号：US903198

申请日：1986-09-03

申请人： Minoru Toriyama ,  Hideaki Kunisada ,  Katsuo Sato

发明人： Minoru Toriyama ,  Hideaki Kunisada ,  Katsuo Sato

IPC分类号： H02H3/087 ,  H02M1/00 ,  H03K17/082 ,  H02H7/122

CPC分类号： H02M7/53803 ,  H03K17/0826

摘要： An inverter that has one or more transistors for supplying current to a load with one or more phases is provided with an overcurrent protection for the transistor. The changing rate for reducing the base current to the transistor upon the detection of an overcurrent is reduced according to a separate delay circuit so that the transistor will not be destroyed by an over voltage that would otherwise occur due to a rapid drop in current passing through the transistor and the inductance of the load circuit including the transistor.

摘要翻译： 具有用于向具有一个或多个相位的负载提供电流的一个或多个晶体管的反相器被提供有晶体管的过电流保护。 根据单独的延迟电路，减小了过电流检测时降低到晶体管的基极电流的变化率，使得晶体管不会被过电压破坏，否则由于电流通过的电流快速下降，否则会发生 晶体管和包括晶体管的负载电路的电感。

公开(公告)号：US4311421A

公开(公告)日：1982-01-19

申请号：US154453

申请日：1980-05-29

申请人： Shigeo Okada ,  Katsuo Sato

发明人： Shigeo Okada ,  Katsuo Sato

IPC分类号： F16B13/14 ,  F16B13/12 ,  F16B13/06

CPC分类号： F16B13/124

摘要： A fastener, comprising an expander part having a saucer-shaped head and a shank extending from the head and formed with a male thread thereon, and a fastener part having a flange and opposite stem portions branched from the back of the flange and connecting through hinge portions to guide portions which join each other at the other ends thereof, the expander part and fastener part each being made of a resin, the fastener part having a circular bore extending from the flange to the stem portions to permit the expander part to be inserted in and temporarily retained in the stem portions, the circular bore having therein opposite bulges positioned ahead of the hinge portions to spread the stem portions outward away from each other when the expander part is pushed.

摘要翻译： 一种紧固件，包括具有碟形头部的膨胀器部分和从头部延伸并在其上形成有阳螺纹的柄部，以及紧固件部件，其具有凸缘和相对的杆部分，该部分从凸缘的后部分支并且通过铰链 用于引导在其另一端彼此连接的部分的部分，膨胀器部分和紧固件部分均由树脂制成，所述紧固件部分具有从凸缘延伸到杆部分的圆形孔，以允许扩张器部分插入 并且临时保持在杆部分中，圆形孔具有位于铰链部分前方的相对的凸起，以在膨胀器部分被推动时将杆部分彼此远离。

公开(公告)号：US08157761B2

公开(公告)日：2012-04-17

申请号：US11773623

申请日：2007-07-05

申请人： Katsuyoshi Sobue ,  Katsuo Sato ,  Ko Kondo ,  Akinori Yamaguchi

发明人： Katsuyoshi Sobue ,  Katsuo Sato ,  Ko Kondo ,  Akinori Yamaguchi

IPC分类号： A61M1/00 ,  A61M5/32 ,  A61M39/00 ,  A61L2/00

CPC分类号： A61M39/18 ,  A61L2/10 ,  A61M1/28 ,  A61M1/285 ,  A61M39/165

摘要： A peritoneal dialysis patient assist device includes (i) a port holder shaped to hold a first connector and a first plug, (ii) a transfer set holder shaped to hold a second connector and a second plug, the transfer set holder rotatable and translatable with respect to the port holder, and (iii) an ultraviolet (“UV”) applicator positioned to radiate UV light on at least part of the first and second connectors when loaded into the port and transfer set holders, respectively.

摘要翻译： 腹膜透析患者辅助装置包括（i）形状为保持第一连接器和第一插塞的端口保持器，（ii）成形为保持第二连接器和第二插塞的传送组保持器，所述传送组保持器可旋转并可与 相对于端口座，以及（iii）紫外线（“UV”）施加器，定位成分别在装载到端口中并且分别传送套件固定器时在第一和第二连接器的至少一部分上辐射UV光。

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：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