公开(公告)号：US07109828B2

公开(公告)日：2006-09-19

申请号：US10482442

申请日：2003-04-14

申请人： Ryoichi Takayama ,  Shunichi Seki ,  Tetsuo Kawasaki ,  Hidekazu Nakanishi ,  Koji Hasegawa

发明人： Ryoichi Takayama ,  Shunichi Seki ,  Tetsuo Kawasaki ,  Hidekazu Nakanishi ,  Koji Hasegawa

IPC分类号： H03H9/25 ,  H03H9/64

CPC分类号： H03H9/25 ,  H03H9/02559 ,  H03H9/02661 ,  H03H9/02929 ,  H03H9/145 ,  H03H9/6483

摘要： In a surface acoustic wave (SAW) device, such as a SAW resonator or a SAW filter, loss is minimized and steep characteristics are improved. IDT electrodes and a reflector are provided to a piezoelectric substrate cut out at a cut-angle which allows the substrate to excite a leaky surface acoustic wave (LSAW). The IDT electrodes have a given film thickness and a given pitch “p” of finger-electrodes. A phase velocity of the SAW is reduced to slower than a phase velocity “vb”of a slow shear wave propagating on the piezoelectric substrate, and a resonance frequency “f” satisfies a relation of 2×p≦vb/f. This structure allows the use of a Rayleigh surface acoustic wave (RSAW) which does not produce propagation loss, and improving insertion-loss and steep characteristics from those of a conventional SAW device using the LSAW.

摘要翻译： 在诸如SAW谐振器或SAW滤波器的表面声波（SAW）器件中，损耗最小化并且提高了陡峭的特性。 IDT电极和反射器被提供给以切割角度切割的压电基板，该基板允许基板激发泄漏的表面声波（LSAW）。 IDT电极具有给定的膜厚度和指状电极的给定间距“p”。 SAW的相速度比在压电基板上传播的慢剪切波的相速度“vb”慢，共振频率“f”满足2pp = vb / f的关系。 该结构允许使用不产生传播损耗的瑞利声表面波（RSAW），并且使用使用LSAW的常规SAW器件的那些改善插入损耗和陡峭特性。

公开(公告)号：US06909341B2

公开(公告)日：2005-06-21

申请号：US10168284

申请日：2001-10-23

申请人： Ryoichi Takayama ,  Hidekazu Nakanishi ,  Tetsuo Kawasaki ,  Toru Sakuragawa ,  Yasuhiko Yokota

发明人： Ryoichi Takayama ,  Hidekazu Nakanishi ,  Tetsuo Kawasaki ,  Toru Sakuragawa ,  Yasuhiko Yokota

IPC分类号： H03H3/08 ,  H03H9/02 ,  H03H9/145 ,  H03H9/64

CPC分类号： H03H9/02661 ,  H03H3/08 ,  H03H9/02897 ,  H03H9/02929 ,  H03H9/14541 ,  Y10T29/42

摘要： In a surface acoustic wave (SAW) filter including a substrate and an electrode formed on the substrate, the electrode includes a base layer, a first metal layer made of a metal consisting of Al or consisting mainly of Al, and having a given orientation relative to the substrate, a second layer for preventing the first metal layer from migration of Al atoms occurring in vertical to the substrate, and a third layer for adjusting a thickness of the layer. In this SAW filter having an arbitrary layer thickness, the layer hardly causes grain boundary diffusion, and grains of the layer can be made fine for effective resistance to stress. Thus, in this SAW filter, the migration of the Al atoms of the electrode that is associated with the SAW propagation-induced stress imposed on the electrode is inhibited. Accordingly, the filter exhibits excellent resistance against electric power.

摘要翻译： 在包括基板和形成在基板上的电极的表面声波（SAW）滤波器中，电极包括基底层，由Al组成的金属或主要由Al组成的金属构成的第一金属层，并且具有给定的取向相对 向基板施加用于防止第一金属层垂直于基板发生的Al原子迁移的第二层，以及用于调整该层厚度的第三层。 在具有任意层厚度的SAW滤波器中，该层几乎不引起晶界扩散，并且可以使该层的晶粒细微地产生有效的抗应力。 因此，在这种SAW滤波器中，与施加在电极上的SAW传播引起的应力有关的电极的Al原子的迁移被抑制。 因此，过滤器表现出优异的电力抵抗性。

公开(公告)号：US20090115554A1

公开(公告)日：2009-05-07

申请号：US12333855

申请日：2008-12-12

申请人： Ryoichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

发明人： Ryoichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

IPC分类号： H03H9/00

CPC分类号： H03H9/145 ,  H03H3/10 ,  H03H9/02559 ,  H03H9/02834 ,  H03H9/02929 ,  H03H9/02984 ,  H03H9/25 ,  H03H9/6496

摘要： An electronic part, an object of which is to improve temperature characteristics and electrical properties, includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1 and L2≧p2 (herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).

摘要翻译： 电子部件，其目的在于提高温度特性和电性能，包括基板（1），设置在基板（1）的上表面上的梳状电极（2）和保护膜 （4），其覆盖梳状电极（2），并且在其顶面具有不均匀的形状。 如果保护膜（4）的凹凸形状中的一个间距的间距宽度为L，则保护膜（4）的凹凸形状的凹凸的凸部（4a）的一个间距的宽度为L1， 其凹部（4b）的一个间距的宽度为L2，梳型电极（2）的一个间距的间距宽度为p，形成梳型电极（2）的电极指的一个的宽度 ）为p1，电极指之间的宽度为p2，则设定每个参数，使得满足以下表达式：L1 <= p1和L2> = p2（这里，L≈p，p1 + p2 = p 并且L1 + L2 = L）。

公开(公告)号：US06891449B2

公开(公告)日：2005-05-10

申请号：US10087275

申请日：2002-03-01

申请人： Ryoichi Takayama ,  Tetsuo Kawasaki ,  Yuki Satoh ,  Kozo Murakami ,  Toru Sakuragawa

发明人： Ryoichi Takayama ,  Tetsuo Kawasaki ,  Yuki Satoh ,  Kozo Murakami ,  Toru Sakuragawa

IPC分类号： H01P1/213 ,  H03H7/19 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H03H9/72 ,  H04B1/50

CPC分类号： H03H9/6483 ,  H03H7/19

摘要： An antenna duplexer has a power durability to a signal input from an antenna terminal and has stable characteristics. The antenna duplexer includes an input terminal, a transmission filter including a surface acoustic wave (SAW) filter having an input port connected to the input terminal, a phase shifter having an input port connected to an output port of the transmission filter, a reception filter having an input port connected to an output port of the phase shifter, an output terminal connected to the output port of the reception filter, and an antenna terminal connected between the transmission filter and the phase shifter. The transmission filter has a power durability at the output port of the filter, being equal to or larger than a power durability at the input port of the filter.

摘要翻译： 天线双工器具有对从天线端子输入的信号的功率耐久性，并具有稳定的特性。 天线双工器包括输入端子，包括具有连接到输入端子的输入端口的表面声波滤波器的发送滤波器，具有连接到发送滤波器的输出端口的输入端口的移相器，接收滤波器 具有连接到移相器的输出端口的输入端口，连接到接收滤波器的输出端口的输出端子以及连接在发送滤波器和移相器之间的天线端子。 传动过滤器在过滤器的输出端口处具有等于或大于过滤器的输入端口处的功率耐久性的功率耐久性。

公开(公告)号：US20060158800A1

公开(公告)日：2006-07-20

申请号：US10540399

申请日：2003-12-24

申请人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

发明人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

IPC分类号： H02H9/00

CPC分类号： H03H9/145 ,  H03H3/10 ,  H03H9/02559 ,  H03H9/02834 ,  H03H9/02929 ,  H03H9/02984 ,  H03H9/25 ,  H03H9/6496

摘要： The present invention relates to an electronic part, and its object is to improve temperature characteristics and electrical properties. In order to attain the object, the electronic part according to the present invention includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1 and L2≧p2 (herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).

摘要翻译： 电子部件技术领域本发明涉及电子部件，其目的在于提高温度特性和电气性能。 为了实现该目的，根据本发明的电子部件包括基板（1），设置在基板（1）的上表面上的梳型电极（2）和保护膜（4） ），其覆盖梳状电极（2），并且在其顶面具有不均匀的形状。 如果保护膜（4）的凹凸形状中的一个间距的间距宽度为L，则保护膜（4）的凹凸形状的凹凸的凸部（4a）的一个节距的宽度为L 如图1所示，凹部（4b）的一个间距的宽度为L 2，梳型电极（2）的一个间距的间距宽度为p，形成梳状电极 型电极（2）为p 1，电极指之间的宽度为p 2，则每个参数被设定为满足以下表达式：L 1 <= p 1和L 2> = p 2（这里，相关性 L pp，p 1 + p 2 = p，L 1 + L 2 = L）。

公开(公告)号：US07855619B2

公开(公告)日：2010-12-21

申请号：US12333855

申请日：2008-12-12

申请人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

发明人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

IPC分类号： H03H9/13 ,  H03H9/25 ,  H03H9/64

CPC分类号： H03H9/145 ,  H03H3/10 ,  H03H9/02559 ,  H03H9/02834 ,  H03H9/02929 ,  H03H9/02984 ,  H03H9/25 ,  H03H9/6496

摘要： An electronic part, an object of which is to improve temperature characteristics and electrical properties, includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1 and L2≧p2 (herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).

摘要翻译： 电子部件，其目的在于提高温度特性和电性能，包括基板（1），设置在基板（1）的上表面上的梳状电极（2）和保护膜 （4），其覆盖梳状电极（2），并且在其顶面具有不均匀的形状。 如果保护膜（4）的凹凸形状中的一个间距的间距宽度为L，则保护膜（4）的凹凸形状的凹凸的凸部（4a）的一个间距的宽度为L1， 其凹部（4b）的一个间距的宽度为L2，梳型电极（2）的一个间距的间距宽度为p，形成梳型电极（2）的电极指的一个的宽度 ）为p1，电极指之间的宽度为p2，则设定每个参数，使得满足以下表达式：L1＆nlE; p1和L2≥p2（这里，L≈p，p1 + p2 = p和L1的相关性 + L2 = L）。

公开(公告)号：US07538636B2

公开(公告)日：2009-05-26

申请号：US10540399

申请日：2003-12-24

申请人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

发明人： Ryouichi Takayama ,  Hidekazu Nakanishi ,  Takashi Inoue ,  Tetsuo Kawasaki ,  Kouji Hasegawa ,  Yukio Iwasaki

IPC分类号： H03H9/13 ,  H03H9/25 ,  H03H9/64

CPC分类号： H03H9/145 ,  H03H3/10 ,  H03H9/02559 ,  H03H9/02834 ,  H03H9/02929 ,  H03H9/02984 ,  H03H9/25 ,  H03H9/6496

摘要： An electronic part, object of which is to improve temperature characteristics and electrical properties, includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1and L2≧p2(herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).

摘要翻译： 电子部件，其目的是提高温度特性和电特性，包括：基板（1），设置在基板（1）的上表面上的梳状电极（2）和保护膜 4），其覆盖梳状电极（2），并且在其顶面具有不均匀的形状。 如果保护膜（4）的凹凸形状中的一个间距的间距宽度为L，则保护膜（4）的凹凸形状的凹凸的凸部（4a）的一个节距的宽度为L1， 其凹部（4b）的一个间距的宽度为L2，梳型电极（2）的一个间距的间距宽度为p，形成梳型电极（2）的电极指的一个的宽度 ）为p1，电极指之间的宽度为p2，则设定每个参数，使得满足以下表达式：L1 <= p1和L2> = p2（这里，L≈p，p1 + p2 = p和 L1 + L2 = L）。

公开(公告)号：US4770084A

公开(公告)日：1988-09-13

申请号：US37250

申请日：1987-04-10

申请人： Koji Miwa ,  Yasuhiro Higashihara ,  Takashi Onda ,  Tetsuo Kawasaki

发明人： Koji Miwa ,  Yasuhiro Higashihara ,  Takashi Onda ,  Tetsuo Kawasaki

IPC分类号： F01B13/04

CPC分类号： F01B13/04 ,  Y10T29/49229 ,  Y10T29/49236

摘要： A parallel swash plate type fluid machine includes a barrel which is rotatable integrally with a rotary shaft, a plurality of cylinder sections directed in the axial direction and opening respectively on the opposite sides of the barrel, pistons fitted in the respective cylinder sections and capable of projecting on the opposite sides of the barrel, and a pair of swash plates for restraining strokes of the pistons provided in a mutually parallel alignment on the opposite sides of the barrel. Parts communicate with respective fluid chambers in the plurality of cylinder sections and have inlet sides connected with each other through a twisted flow passageway and have outlet sides connected with each other through another twisted flow passageway.

摘要翻译： 平行旋转斜盘式流体机械包括：与旋转轴一体旋转的筒体，沿轴向方向引导的多个圆筒部分，并分别在筒体的相对侧开口，活塞安装在相应的气缸部分中，并能够 突出在筒体的相对两侧，以及一对旋转斜盘，用于限制在筒体的相对侧上以相互平行排列的活塞的行程。 部件与多个气缸部分中的各个流体室相通，并且入口侧通过扭曲的流动通道相互连接并且出口侧通过另一个扭转的流动通道相互连接。

公开(公告)号：US06992424B2

公开(公告)日：2006-01-31

申请号：US10467742

申请日：2002-02-07

申请人： Yukinori Sasaki ,  Tetsuro Shimamura ,  Tetsuo Kawasaki ,  Kazunari Nishihara ,  Tetsuya Furihata ,  Kuniaki Matsushita ,  Katsunori Moritoki ,  Katsu Takeda

发明人： Yukinori Sasaki ,  Tetsuro Shimamura ,  Tetsuo Kawasaki ,  Kazunari Nishihara ,  Tetsuya Furihata ,  Kuniaki Matsushita ,  Katsunori Moritoki ,  Katsu Takeda

IPC分类号： H01L41/08

CPC分类号： H03H9/177 ,  H03H9/02031 ,  H03H9/02157 ,  H03H9/562 ,  H03H9/581

摘要： A piezoelectric vibrator which uses lithium tantalate as a piezoelectric material and of which main vibration is thickness shear vibration. The thickness direction of the vibrator forms angle of 0°±5° to the X-axis of a single crystal. The longitudinal direction of vibrator lies, with the X-axis used as a rotation axis, in direction n +57°±2° clockwise from the Y-axis of the single crystal. A ratio L/H of the length L of the vibrator to the thickness H is not less than 15. A ratio Le/H of the length Le of the exciting electrode to the thickness H of the vibrator element portion is 3–6. Accordingly, a vibrator having improved temperature characteristics and a large Q is realized.

摘要翻译： 一种使用钽酸锂作为压电材料并且主要振动是厚度剪切振动的压电振动器。 振动器的厚度方向与单晶的X轴形成0°±5°的角度。 振动器的纵向方向以X轴用作旋转轴线，从单晶Y轴顺时针方向n + 57°±2°。 振动器的长度L与厚度H的比L / H不小于15.激励电极的长度Le与振动元件部分的厚度H之比Le / H为3-6。 因此，实现了具有改善的温度特性和大的Q的振动器。

公开(公告)号：US4481867A

公开(公告)日：1984-11-13

申请号：US401979

申请日：1982-07-26

申请人： Yukihiko Nagase ,  Tetsuo Kawasaki ,  Masato Hiromatsu ,  Sadao Asanabe ,  Kunio Saki

发明人： Yukihiko Nagase ,  Tetsuo Kawasaki ,  Masato Hiromatsu ,  Sadao Asanabe ,  Kunio Saki

IPC分类号： F03C1/06 ,  F03C1/253 ,  F04B1/20 ,  F01B13/04

CPC分类号： F04B1/2021 ,  F04B1/2035

摘要： An axial plunger pump or motor of the type such that a valve plate having a suction port and a discharge port drilled therein is fixed to a casing in which a rotary shaft is mounted. A cylinder block having one end surface opposed to the valve plate is coupled to the rotary shaft. A plurality of bores whose one ends can be communicated with the suction port and the discharge port are drilled in the cylinder block in parallel to the rotary shaft. A plurality of plungers, which can reciprocate within the respective bores in accordance with rotation of the rotary shaft are slidably fitted in the bores on the side of the other ends. A seal plate positioned between the valve plate and the cylinder block and making slide contact with the valve plate is coupled to the rotary shaft. A plurality of bushes or bushings, each consisting of a thin-walled cylinder portion fitted in one end portion of the bore and capable of making tight contact with an inner wall surface of the bore as expanded in diameter by a high-pressure liquid within the bore and a flange portion butting against the seal plate, are interposed between the seal plate and the cylinder block. An urging member for bringing the flange portion of the bush into tight contact with the seal plate in cooperation with the high-pressure liquid is provided between the flange portion of the bush and the one end surface of the cylinder block.

摘要翻译： 这种类型的轴向柱塞泵或马达，使得具有吸入口和排出口钻出的阀板固定到安装旋转轴的壳体中。 具有与阀板相对的一个端面的气缸体联接到旋转轴。 一端与吸入口和排出口连通的多个孔平行于旋转轴在气缸体中钻孔。 可以根据旋转轴的旋转在各孔内往复运动的多个柱塞可滑动地装配在另一端侧的孔中。 定位在阀板和气缸体之间并与阀板滑动接触的密封板联接到旋转轴。 多个衬套或衬套，每个衬套或衬套均由安装在孔的一个端部中的薄壁圆筒部分组成，并且能够通过内部的高压液体直径扩大而与孔的内壁表面紧密接触 孔和与密封板对接的凸缘部分插入在密封板和气缸体之间。 在衬套的凸缘部和气缸体的一个端面之间设置有用于使衬套的凸缘部与密封板紧密接触的推压构件，与该高压液体配合。