公开(公告)号：US06640095B2

公开(公告)日：2003-10-28

申请号：US10147235

申请日：2002-05-15

申请人： Norio Nakajima ,  Harufumi Mandai

发明人： Norio Nakajima ,  Harufumi Mandai

IPC分类号： H04B126

CPC分类号： H03B19/05 ,  H05K1/0237 ,  H05K1/162 ,  H05K1/165 ,  H05K1/181

摘要： A compact frequency multiplier can perform high-degree frequency multiplication and can be incorporated in a wireless device. The frequency multiplier includes an input terminal for inputting an input signal, a first resonant circuit resonating with the frequency &ohgr; of the input signal, a second resonant circuit and an idler circuit, which resonate with the frequency n·&ohgr; that is, n times the frequency of the input signal, a variable reactor such as a varactor diode, coupling-adjusting capacitors, a bias resistor, and an output terminal for outputting multiplied output signals. In one embodiment, the frequency multiplier is a current-excitation type. The first resonant circuit and the second resonant circuit, each of which is constituted of an LC series resonant circuit, are connected in series between the input terminal and the output terminal. In addition, a parallel circuit constituted of the idler circuit and the varactor diode is connected to a connection point between the first and second resonant circuits and the input terminal and the output terminal.

公开(公告)号：US06432239B1

公开(公告)日：2002-08-13

申请号：US09504919

申请日：2000-02-16

申请人： Harufumi Mandai ,  Norio Sakai ,  Isao Kato ,  Atsushi Kumano

发明人： Harufumi Mandai ,  Norio Sakai ,  Isao Kato ,  Atsushi Kumano

IPC分类号： B32B3126

CPC分类号： H01L23/49822 ,  H01L21/4857 ,  H01L2224/16 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/01012 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/09701 ,  H01L2924/15153 ,  H01L2924/1517 ,  H01L2924/19105 ,  H05K1/0306 ,  H05K3/4629 ,  H05K2201/0195 ,  Y10T29/49163 ,  Y10T156/1056 ,  Y10T428/24917 ,  Y10T428/24926 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24959 ,  H01L2224/0401

摘要： There is disclosed a method of producing a ceramic multilayer substrate by laminating a plurality of glass-ceramic green sheets made of a glass-ceramic containing an organic binder and a plasticizer to form a laminate; and firing the laminate; further comprising: applying to or overlaying on the surfaces of the glass-ceramic green sheets inorganic compositions, the sintering temperature of the inorganic compositions being higher than that of the glass-ceramic green sheets; laminating a plurality of the glass-ceramic green sheets having the inorganic compositions applied to or overlaid on the surfaces of the glass-ceramic green sheets respectively, to form a part of the laminate; and laminating a plurality of the glass-ceramic green sheets to form the other part of the laminate.

公开(公告)号：US5507011A

公开(公告)日：1996-04-09

申请号：US172123

申请日：1993-12-21

申请人： Yoshikazu Chigodo ,  Harufumi Mandai

发明人： Yoshikazu Chigodo ,  Harufumi Mandai

IPC分类号： H01P1/15 ,  H04B1/44 ,  H04B1/48 ,  H01P1/10

CPC分类号： H01P1/15 ,  H04B1/44 ,  H04B1/48

摘要： A transmitting circuit is connected to an antenna via a first diode. The antenna is connected to a receiving circuit with the circuit including a strip line and a second diode. Two diodes are turned ON by applying a positive voltage to a first control terminal. In this state, a signal from the transmitting circuit is transmitted from the antenna. The transmission signal is not transferred to the receiving circuit side due to a series resonance circuit with the inductance of the second diode and a capacitor. When the high-frequency switch is used for reception, a positive voltage is applied to a second control terminal. The voltage is divided by a resistors respectively connected to the diodes in parallel, and applied to the diodes as a backward voltage. And hence, the diodes are surely maintained in the OFF state. The isolation between the transmitting circuit and the antenna is improved by a parallel resonance circuit with the capacitance of the first diode and a inductor.

摘要翻译： 发射电路通过第一二极管连接到天线。 天线连接到接收电路，电路包括带状线和第二二极管。 通过向第一控制端施加正电压来使两个二极管接通。 在该状态下，从天线发送来自发送电路的信号。 由于具有第二二极管的电感和电容器的串联谐振电路，传输信号不会传送到接收电路侧。 当使用高频开关进行接收时，向第二控制端子施加正电压。 电压由分别与二极管并联的电阻分压，并作为反向电压施加到二极管。 因此，二极管可靠地保持在OFF状态。 通过具有第一二极管和电感器的电容的并联谐振电路来改善发射电路和天线之间的隔离。

公开(公告)号：US5414402A

公开(公告)日：1995-05-09

申请号：US152382

申请日：1993-11-16

申请人： Harufumi Mandai ,  Noboru Kato ,  Atsushi Tojyo

发明人： Harufumi Mandai ,  Noboru Kato ,  Atsushi Tojyo

IPC分类号： H01F17/00 ,  H01F17/04 ,  H01L27/01 ,  H05K1/16 ,  H05K1/18 ,  H01F5/02

CPC分类号： H01F17/0013 ,  H01L27/01 ,  H05K1/16 ,  H05K1/181

摘要： A multi-layer substrate which should be used with an inductor. The multi-layer substrate has an internal coil which should be connected with the inductor electrically. The internal coil has such an inductance value that the total inductance of the inductor and the internal coil will be a specified value.

摘要翻译： 应与电感一起使用的多层基板。 多层基板具有应该与电感器电连接的内部线圈。 内部线圈具有这样的电感值，使得电感器和内部线圈的总电感将为规定值。

公开(公告)号：US5237296A

公开(公告)日：1993-08-17

申请号：US859350

申请日：1992-03-30

申请人： Harufumi Mandai ,  Yoshikazu Chigodo ,  Atsushi Tojo

发明人： Harufumi Mandai ,  Yoshikazu Chigodo ,  Atsushi Tojo

IPC分类号： H01G4/40 ,  H01L27/01 ,  H03H7/00 ,  H03H7/01

CPC分类号： H03H7/00

摘要： This composite electronic part comprises a dielectric layer on which earth electrodes are formed, a dielectric layer on which conductive lines are formed, and a dielectric layer on which electronic parts are pattern-formed. A plurality of the dielectric layers are so laminated that the dielectric layer with the earth electrodes is disposed next to the dielectric layer with the conductive lines. These conductive lines and earth electrodes form strip lines. A short-stub or an open-stub is formed by connecting one end of the conductive line to the earth electrode or opening that one end. A composite electronic part is obtained by connecting the short-stub, open-stub, and the electronic parts.

摘要翻译： 该复合电子部件包括形成有接地电极的电介质层，形成有导线的电介质层和形成电子部件的电介质层。 多个电介质层被层叠，使得具有接地电极的电介质层设置在具有导电线的电介质层的旁边。 这些导线和接地电极形成带状线。 通过将导线的一端连接到接地电极或一端的开口来形成短截线或开口短截线。 通过短路短路，开路短路和电子元件连接获得复合电子部件。

公开(公告)号：US5204301A

公开(公告)日：1993-04-20

申请号：US906534

申请日：1992-06-30

申请人： Shinichi Ohkubo ,  Yoshiaki Mori ,  Yoshihiro Yoshimoto ,  Harufumi Mandai

发明人： Shinichi Ohkubo ,  Yoshiaki Mori ,  Yoshihiro Yoshimoto ,  Harufumi Mandai

IPC分类号： C04B35/46 ,  C04B35/49 ,  H01B3/12 ,  H01G4/12 ,  H01P7/10

CPC分类号： C04B35/49

摘要： A non-reduction type dielectric ceramic composition, which contains 100 parts by weight of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 -zMnO.sub.2 -wSiO.sub.2 serving as a main component and 2 to 30 parts by weight of an additive which is a(LiO.sub.1.kappa. -RO)-(1-a)(BO.sub.3/2 -SiO.sub.2), where RO is at least one type of SrO, BaO and CaO, and a is not less than 0.01 nor more than 0.8 in terms of a molar ratio, and satisfies the following relationships in the composition formulas of the above described main component and additive: x, y and m satisfy the following relationships in terms of a molar ratio:x.ltoreq.x.ltoreq.1.00.ltoreq.y.ltoreq.0.20.9.ltoreq.m.ltoreq.1.1and z and w satisfy the following relationships when the amount of (Ca.sub.1-x Sr.sub.x).sub.m (Zr.sub.1-y Ti.sub.y)O.sub.3 is 100% by weight:0.1.ltoreq.z.ltoreq.5% by weight0.3.ltoreq.w.ltoreq.8% byw weight.

摘要翻译： 含有100重量份作为主要成分的（Ca1-xSrx）m（Zr1-yTiy）O3-zMnO2-wSiO2和2〜30重量份添加剂的非还原型电介质陶瓷组合物，其为 （LiO 1 kappa -RO） - （1-a）（BO 3/2 SiO 2），其中RO为SrO，BaO和CaO中的至少一种，a为摩尔浓度，不小于0.01，不大于0.8 并且在上述主要组分和添加剂的组成式中满足以下关系：x，y和m以摩尔比满足以下关系：x X = 1.0 0 （Ca1-xSrx）m（Zr1-yTiy）O3的量为100重量％时，z和w满足以下关系：0.1

公开(公告)号：US5146191A

公开(公告)日：1992-09-08

申请号：US712546

申请日：1991-06-10

申请人： Harufumi Mandai ,  Yoshikazu Chigodo ,  Atsushi Tojo

发明人： Harufumi Mandai ,  Yoshikazu Chigodo ,  Atsushi Tojo

IPC分类号： H01P9/00 ,  H01P11/00 ,  H03H7/34

CPC分类号： H03H7/34

摘要： A delay line device for delaying signal transmission. A lamination comprises an uppermost grounding electrode, a lowermost grounding electrode, a plurality of strip-line conductors, a plurality of intermediate grounding electrodes, dielectric layers, and protective layers. The strip-line conductors and the intermediate grounding electrodes are accumulated alternately and are interposed between the uppermost and the lowermost grounding electrodes. The dielectric layers are each interposed between each adjacent pair of the strip-line conductor and the intermediate grounding electrode. The protective layers are respectively provided on outer surfaces of the uppermost and the lowermost grounding electrodes. The strip-line conductors are connected via a through hole to form a strip-line conductor series and both ends of the series are extended onto a side surface of the lamination. An external input electrode is connected to one of the ends of the strip-line conductor series on the side surface of the lamination. An external output electrode is connected to the other end of the strip-line conductor series on the side surface of the lamination. An external grounding electrode is connected to connecting portions of the uppermost, lowermost and intermediate grounding electrodes on the side surface of the lamination.

摘要翻译： 用于延迟信号传输的延迟线设备。 叠层包括最上面的接地电极，最下面的接地电极，多条带状导体，多个中间接地电极，电介质层和保护层。 带状线导体和中间接地电极交替堆积并插入在最上层和最下层的接地电极之间。 电介质层各自插入在相邻的一对带状线导体和中间接地电极之间。 保护层分别设置在最上面和最下面的接地电极的外表面上。 带状导体通过通孔连接以形成带状导体序列，并且串联的两端延伸到层压体的侧表面。 外部输入电极连接到层叠体的侧面上的带状导体序列的一端。 外部输出电极连接到层叠体的侧面上的带状导体序列的另一端。 外部接地电极连接到层叠体的侧表面上的最上层，最下层和中间的接地电极的连接部分。

公开(公告)号：US5107394A

公开(公告)日：1992-04-21

申请号：US675149

申请日：1991-03-26

申请人： Yasuyuki Naito ,  Shinichi Okubo ,  Hiroji Tani ,  Kanehito Honma ,  Tadashi Morimoto ,  Harufumi Mandai

发明人： Yasuyuki Naito ,  Shinichi Okubo ,  Hiroji Tani ,  Kanehito Honma ,  Tadashi Morimoto ,  Harufumi Mandai

IPC分类号： H01G4/12 ,  H01C17/28 ,  H01F41/04 ,  H01G4/232

CPC分类号： H01G4/232 ,  H01C17/281 ,  Y10T29/435

摘要： An external electrode is formed on an outer surface of a ceramic molded product. The external electrode consists of an inner layer and an outer layer. The inner layer is composed of conductive material. The outer layer is composed of conductive material and glass material. In a process for producing the ceramic molded product, first, by molding a ceramic material a molded product is formed. On outer surfaces of the molded product, a conductive paste containing copper or the like is coated. Furthermore, on the conductive paste, a conductive paste containing a glass frit is coated. By baking the molded product onto which these two kinds of conductive paste are coated, ceramic electronic parts having an external electrode of 2-layer structure is obtained.

摘要翻译： 外部电极形成在陶瓷模制品的外表面上。 外部电极由内层和外层构成。 内层由导电材料构成。 外层由导电材料和玻璃材料组成。 在陶瓷成型体的制造方法中，首先，通过模制陶瓷材料，形成成型体。 在模制产品的外表面上涂覆含有铜等的导电糊。 此外，在导电性糊剂上涂布含有玻璃料的导电性糊剂。 通过烘烤涂覆有这两种导电糊的成型体，得到具有2层结构的外部电极的陶瓷电子部件。

公开(公告)号：US4803453A

公开(公告)日：1989-02-07

申请号：US96407

申请日：1987-09-15

申请人： Kunisaburo Tomono ,  Harufumi Mandai ,  Toshio Kawabata ,  Yukio Sakamoto ,  Toyoaki Tsunematsu ,  Toshimi Kaneko

发明人： Kunisaburo Tomono ,  Harufumi Mandai ,  Toshio Kawabata ,  Yukio Sakamoto ,  Toyoaki Tsunematsu ,  Toshimi Kaneko

IPC分类号： H01F17/00 ,  H01F41/04 ,  H01F27/30

CPC分类号： H01F17/0013 ,  H01F41/046

摘要： A laminated transformer includes a plurality of ferrite sheets having surfaces on which conductor patterns are formed and are laminated and baked to be a sintered body, and a pair of the primary external electrodes and a pair of the secondary external electrodes are provided at end faces of the sintered body. The transformer is used mainly in a high frequency circuit, the conductor patterns formed at the laminated ferrite sheets being used as the primary or the secondary, both ends of the primary conductor patterns being electrically connected to the pair of the primary external electrodes and both ends of the secondary conductor patterns being electrically connected to the pair of the secondary external electrodes, so that the primary and secondary conductor patterns have no coiled construction and no self-distributed capacity, so that the laminated transformer will no induce self-resonance even when used in a high frequency band.

摘要翻译： 层压变压器包括多个铁氧体片，其具有形成有导体图案的表面并被层压并焙烧成烧结体，并且一对初级外部电极和一对次级外部电极设置在 烧结体。 变压器主要用于高频电路中，形成在层叠铁素体片上的导体图案用作主要或次要的，主导体图案的两端电连接到一对主外部电极和两端 的二次导体图案电连接到一对次级外部电极，使得一次和二次导体图案不具有卷绕结构且没有自分布能力，使得即使在使用时，层压变压器也不会引起自谐振 在高频带。

公开(公告)号：US4533931A

公开(公告)日：1985-08-06

申请号：US577020

申请日：1984-02-06

申请人： Harufumi Mandai ,  Kiyoshi Iwai ,  Yasuyuki Naito

发明人： Harufumi Mandai ,  Kiyoshi Iwai ,  Yasuyuki Naito

IPC分类号： H01G4/005 ,  H01G4/12 ,  H01L29/12 ,  H01G9/00

CPC分类号： H01G4/1272

摘要： A reduction reoxidation ceramic semiconductor having a central ceramic portion with a dielectric layer formed thereon by oxidation. The ohmic electrode is formed from a material (e.g. an aluminum-glass frit) that prevents formation of the dielectric layer under the ohmic electrode during reoxidation. The non-ohmic electrode is formed on the dielectric layer.

摘要翻译： 一种还原再氧化陶瓷半导体，具有通过氧化在其上形成介电层的中心陶瓷部分。 欧姆电极由在再氧化期间防止在欧姆电极下形成电介质层的材料（例如铝 - 玻璃料）形成。 在电介质层上形成非欧姆电极。