公开(公告)号：US08067995B2

公开(公告)日：2011-11-29

申请号：US12601621

申请日：2009-03-17

申请人： Takayuki Tsukizawa

发明人： Takayuki Tsukizawa

IPC分类号： H03B5/12

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2200/0048 ,  H03B2200/005 ,  H03L7/099 ,  H03L7/18 ,  H03L2207/06

摘要： A voltage controlled oscillator includes first and second variable capacitance circuits 120 and 130, and first and second capacitance switch circuits 140 and 150. A control voltage Vt is fixedly applied to the first variable capacitance circuit 120, and control signals Fsel2 and Fsel3 are fixedly applied to the first and second capacitance switch circuits 140 and 150, respectively. When both of the control signals Fsel2 and Fsel3 are at a low level, the control signal Fsel1 is applied to the second variable capacitance circuit 130. When the control signals Fsel2 and Fsel3 are both not at the low level, the control voltage Vt is applied to the second variable capacitance circuit 130. As a result of this control, a high-frequency variable range is divided into two variable ranges, one based on upper frequencies and the other based on lower frequencies. This enables suppression of a frequency sensitivity without narrowing the high-frequency variable range.

摘要翻译： 压控振荡器包括第一和第二可变电容电路120和130以及第一和第二电容开关电路140和150.控制电压Vt固定地施加到第一可变电容电路120，并且控制信号Fsel2和Fsel3被固定地施加 分别连接到第一和第二电容开关电路140和150。 当控制信号Fsel2和Fsel3都处于低电平时，控制信号Fsel1被施加到第二可变电容电路130.当控制信号Fsel2和Fsel3都不处于低电平时，施加控制电压Vt 到第二可变电容电路130.作为该控制的结果，高频可变范围被分为两个可变范围，一个基于较高频率，另一个基于较低频率。 这使得能够抑制频率灵敏度而不会使高频可变范围变窄。

公开(公告)号：US07701304B2

公开(公告)日：2010-04-20

申请号：US12035250

申请日：2008-02-21

申请人： Takayuki Tsukizawa ,  Koji Takinami

发明人： Takayuki Tsukizawa ,  Koji Takinami

IPC分类号： H03B5/18

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2201/025 ,  H03J2200/10

摘要： A voltage controlled oscillator has a reference voltage generation section for generating a plurality of reference voltage based on a power supply voltage. Reference voltages Vref1, Vref2, and Vref3 are inputted to variable capacitance circuits A, B, and C, respectively. Reference voltages Vref1, Vref2, and Vref3 each has a fixed value, and a difference between the first reference voltage Vref1 and the second reference voltage Vref2 and a difference between the second reference voltage Vref2 and the third reference voltage Vref3 represent values different from each other. A control voltage Vt for feedback-controlling an oscillation frequency is inputted to each of the other of the terminals of the variable capacitance element of each of the n variable capacitance circuits such that the control voltage Vt having the same value is inputted to the each of the other of the terminals.

摘要翻译： 压控振荡器具有用于基于电源电压产生多个参考电压的参考电压产生部分。 参考电压Vref1，Vref2和Vref3分别输入到可变电容电路A，B和C. 参考电压Vref1，Vref2和Vref3各自具有固定值，并且第一参考电压Vref1和第二参考电压Vref2之间的差以及第二参考电压Vref2与第三参考电压Vref3之间的差表示彼此不同的值 。 将用于反馈控制振荡频率的控制电压Vt输入到n个可变电容电路中的每一个的可变电容元件的另一个端子中，使得具有相同值的控制电压Vt被输入到 另一个终端。

公开(公告)号：US07567139B2

公开(公告)日：2009-07-28

申请号：US11882945

申请日：2007-08-07

申请人： Takayuki Tsukizawa

发明人： Takayuki Tsukizawa

IPC分类号： H03B1/00

CPC分类号： H03L7/099 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1253 ,  H03B5/1293 ,  H03B2200/005 ,  H03J5/00 ,  H03L2207/06

摘要： A voltage controlled oscillator including an inductor circuit including inductors 101, 102, a variable capacitance circuit 110 having variable capacitance elements 111, 112 changing a capacitance according to a voltage difference between two terminals thereof and having capacitive elements 113, 114 cutting a DC component, a negative resistance circuit including cross-coupled oscillating transistors 103, 104, and a time-switched level shift circuit 108 for shifting a reference voltage to two or more levels in a predetermined period. A connection point A of the variable capacitance elements is supplied with a control voltage Vt controlling an oscillation frequency, and connection points B, C of the variable capacitance elements and the capacitive elements are supplied with a reference voltage Vref output from the time-switched level shift circuit 108 via resistors 115, 116.

摘要翻译： 一种压控振荡器，包括电感器电路，包括电感器101,102，具有可变电容元件111,112的可变电容电路110，根据其两个端子之间的电压差改变电容，并具有切割DC分量的电容元件113,114， 负电阻电路包括交叉耦合振荡晶体管103,104和时间切换电平移位电路108，用于在预定周期内将参考电压移位到两个或更多个电平。 可变电容元件的连接点A被提供控制振荡频率的控制电压Vt，可变电容元件和电容元件的连接点B，C被提供从时间切换电平输出的参考电压Vref 移位电路108经由电阻器115,116。

公开(公告)号：US20050156681A1

公开(公告)日：2005-07-21

申请号：US11025154

申请日：2004-12-30

申请人： Koji Takinami ,  Takayuki Tsukizawa ,  Hisashi Adachi ,  Atsushi Ohara

发明人： Koji Takinami ,  Takayuki Tsukizawa ,  Hisashi Adachi ,  Atsushi Ohara

IPC分类号： H03K3/354 ,  H03K3/26

CPC分类号： H03K3/354

摘要： The present invention provides a voltage controlled oscillator for changing an oscillating frequency in accordance an input control voltage, including a parallel resonant circuit, a negative resistance circuit connected in parallel to the parallel resonant circuit, a first capacitor connected in parallel to the negative resistance circuit, a first current source connected between one terminal of the first capacitor and the negative resistance circuit, and a second current source connected between the other terminal of the first capacitor and the negative resistance circuit. The capacitance value of the first capacitor is set to a value that suppresses a signal with a frequency twice the oscillating frequency at both the terminals of the first capacitor. Each of the first and the second current sources is constituted by a bipolar transistor.

摘要翻译： 本发明提供了一种用于根据输入控制电压来改变振荡频率的压控振荡器，包括并联谐振电路，与并联谐振电路并联连接的负电阻电路，与负电阻电路并联连接的第一电容器 连接在第一电容器的一个端子和负电阻电路之间的第一电流源和连接在第一电容器的另一个端子和负电阻电路之间的第二电流源。 将第一电容器的电容值设定为抑制在第一电容器的两端的频率为振荡频率两倍的频率的信号的值。 第一和第二电流源中的每一个由双极晶体管构成。

公开(公告)号：US08421582B2

公开(公告)日：2013-04-16

申请号：US13407790

申请日：2012-02-29

申请人： Kumiko Hiehata ,  Takahiro Sumi ,  Jun Adachi ,  Jun Urakawa ,  Takayuki Tsukizawa

发明人： Kumiko Hiehata ,  Takahiro Sumi ,  Jun Adachi ,  Jun Urakawa ,  Takayuki Tsukizawa

IPC分类号： H01C7/10

CPC分类号： H01T4/12 ,  H01C7/108 ,  H01C7/12 ,  H01L23/60 ,  H01L27/0288 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/12044 ,  H01T1/20 ,  H01T21/00 ,  H01L2924/00

摘要： An ESD protection device includes opposed electrodes in a ceramic base material and a discharge auxiliary electrode in contact with each of the opposed electrodes which is arranged so as to provide a bridge from the opposed electrode on one side to the opposed electrode on the other side, the discharge auxiliary electrode includes metallic particles, semiconductor particles, and a vitreous material, and bonding is provided through the vitreous material between the metallic particles, between the semiconductor particles, and between the metallic particles and the semiconductor particles. The metallic particles have an average particle diameter X of about 1.0 μm or more, and the relationship between the thickness Y of the discharge auxiliary electrode and the average particle diameter X of the metallic particles satisfies about 0.5≦Y/X≦ about 3.

摘要翻译： ESD保护装置包括陶瓷基材中的相对电极和与每个相对电极接触的放电辅助电极，其布置成提供从一侧的相对电极到另一侧的相对电极的桥， 放电辅助电极包括金属颗粒，半导体颗粒和玻璃质材料，并且通过金属颗粒之间，半导体颗粒之间以及金属颗粒和半导体颗粒之间的玻璃质材料提供接合。 金属颗粒的平均粒径X为约1.0μm以上，放电辅助电极的厚度Y与金属粒子的平均粒径X之间的关系为约0.5＆lt; 1lE; Y / X＆ 约3。

公开(公告)号：US07833370B2

公开(公告)日：2010-11-16

申请号：US11951842

申请日：2007-12-06

申请人： Akiyoshi Kawamura ,  Takayuki Tsukizawa ,  Tetsuya Ikeda ,  Osamu Chikagawa

发明人： Akiyoshi Kawamura ,  Takayuki Tsukizawa ,  Tetsuya Ikeda ,  Osamu Chikagawa

IPC分类号： C03B29/00

CPC分类号： H05K3/0052 ,  H05K1/0272 ,  H05K1/0306 ,  H05K3/4611 ,  H05K3/4629 ,  H05K2203/302 ,  H05K2203/308

摘要： A method for manufacturing a ceramic multi-layered substrate includes a first step of forming a green ceramic laminate including a plurality of stacked green ceramic base layers, a second step of firing the green ceramic laminate to sinter the green ceramic layers, and a third step of separating the sintered ceramic laminate formed by firing the green ceramic laminate into a ceramic multi-layered substrate. The green ceramic base layers stacked in the first step include a separation pattern formed along separation lines, the separation pattern disappearing during firing. In the third step, the sintered ceramic laminate is separated into a plurality of ceramic multi-layered substrates separated through a cavity formed by the disappearance of the separation pattern during the firing in the second step.

摘要翻译： 陶瓷多层基板的制造方法包括：形成包含多个层叠的生坯陶瓷基层的生坯陶瓷层叠体的第一工序;烧成生陶瓷层叠体烧结生坯陶瓷层的第二工序;第三工序 通过将生坯陶瓷层压体烧制成陶瓷多层基板而形成的烧结陶瓷层叠体。 在第一步骤中堆叠的绿色陶瓷基底层包括沿着分离线形成的分离图案，分离图案在焙烧期间消失。 在第三步骤中，烧结的陶瓷层压体被分离成多个陶瓷多层基板，其通过在第二步骤中的烧制期间由分离图案消失形成的空腔分离。

公开(公告)号：US20080142147A1

公开(公告)日：2008-06-19

申请号：US11951842

申请日：2007-12-06

申请人： Akiyoshi Kawamura ,  Takayuki Tsukizawa ,  Tetsuya Ikeda ,  Osamu Chikagawa

发明人： Akiyoshi Kawamura ,  Takayuki Tsukizawa ,  Tetsuya Ikeda ,  Osamu Chikagawa

IPC分类号： B32B37/06

CPC分类号： H05K3/0052 ,  H05K1/0272 ,  H05K1/0306 ,  H05K3/4611 ,  H05K3/4629 ,  H05K2203/302 ,  H05K2203/308

摘要： A method for accurately and easily manufacturing a ceramic multi-layered substrate includes a first step of forming a green ceramic laminate including a plurality of stacked green ceramic base layers, a second step of firing the green ceramic laminate to sinter the green ceramic layers, and a third step of separating the sintered ceramic laminate formed by firing the green ceramic laminate into a ceramic multi-layered substrate. The green ceramic base layers stacked in the first step include a separation pattern formed along separation lines, the separation pattern disappearing during firing. In the third step, the sintered ceramic laminate is separated into a plurality of ceramic multi-layered substrates separated through a cavity formed by the disappearance of the separation pattern during the firing in the second step.

摘要翻译： 陶瓷多层基板的精确且容易地制造方法包括：形成包含多个堆叠的绿色陶瓷基底层的生坯陶瓷层叠体的第一工序;烧成生陶瓷层叠体烧结生坯陶瓷层的第二工序;以及 将通过将生坯陶瓷层压体烧制成陶瓷多层基板形成的烧结陶瓷层叠体的第三步骤。 在第一步骤中堆叠的绿色陶瓷基底层包括沿着分离线形成的分离图案，分离图案在焙烧期间消失。 在第三步骤中，烧结的陶瓷层压体被分离成多个陶瓷多层基板，其通过在第二步骤中的烧制期间由分离图案消失形成的空腔分离。

公开(公告)号：US06642167B1

公开(公告)日：2003-11-04

申请号：US09707629

申请日：2000-11-06

申请人： Yasutaka Sugimoto ,  Takayuki Tsukizawa

发明人： Yasutaka Sugimoto ,  Takayuki Tsukizawa

IPC分类号： C04B35468

CPC分类号： H01G4/1227 ,  C04B35/4686 ,  H01B3/12 ,  H01G4/1245 ,  H01L2224/16227 ,  H01L2224/16235 ,  H01L2924/15192 ,  H01L2924/15313 ,  H01L2924/16251 ,  H01L2924/19105 ,  H01L2924/3025 ,  H05K1/0306 ,  H05K1/162 ,  H05K3/4629

摘要： A dielectric ceramic composition comprises 100 parts by weight of major component represented by the formula BaO-×{(1-y)TiO2.yZrO2} wherein 3.5≦×≦4.5 and 0≦y≦0.2, and auxiliary components added to the main component. The auxiliary components comprises about 5 to 30 parts by weight, on a ZnO basis, of zinc compound about 0.5 to 6 parts by weight, on a SiO2 basis, of silicon compound, about 0.1 to 3 parts by weight, on an oxide (R2O) basis, of alkali metal compound wherein R is alkali metal, about 0.1 to 7 parts by weight, on a CuO basis, of copper compound, and about 0.1 to 6 parts by weight, on a V2O5 basis, of vanadium compound or about 0.1 to 6 parts by weight, on a Bi2O3 basis, of bismuth compound. This dielectric ceramic composition can be simultaneously sintered together with silver or copper at a temperature of 1,000° C. or less, and exhibits a high dielectric constant, a high Q value, a small change in dielectric property with temperature, and high environmental resistance. The composition is suitable for high-frequency electronic components.

摘要翻译： 介电陶瓷组合物包含100重量份由式BaO-x {（1-y）TiO2.yZrO 2}表示的主要组分，其中3.5 <= x <= 4.5且0 <= y <= 0.2，并加入辅助组分 到主要组件。 辅助组分包含约5至30重量份的基于ZnO的锌化合物，约0.5至6重量份，基于SiO 2的硅化合物，约0.1至3重量份的氧化物（R 2 O ）的碱金属化合物，其中R为碱金属，约0.1〜7重量份，CuO为基准，铜化合物为约0.1〜6重量份，V 2 O 5为约0.1〜6重量份，钒化合物为约0.1〜6重量份 至6重量份，以Bi 2 O 3为基准的铋化合物。 该电介质陶瓷组合物可以在1000℃以下的温度下与银或铜同时烧结，并且具有高介电常数，高Q值，介电性随温度变化小，耐环境性好。 该组合物适用于高频电子元件。

公开(公告)号：US08503147B2

公开(公告)日：2013-08-06

申请号：US13106960

申请日：2011-05-13

申请人： Takayuki Tsukizawa ,  Tetsuya Ikeda

发明人： Takayuki Tsukizawa ,  Tetsuya Ikeda

IPC分类号： H02H1/04 ,  H02H3/22

CPC分类号： H05K9/0067

摘要： An ESD protection device includes a ceramic multilayer substrate including a plurality of laminated insulating layers, an external electrode, at least one of an in-plane connecting conductor and an interlayer connecting conductor, and a mixture portion. The mixture portion is provided along a principal surface of one of the insulating layers and includes a dispersed material including at least one of metal and semiconductor; metal and ceramic; metal, semiconductor, and ceramic; semiconductor and ceramic; semiconductor; metal coated with an inorganic material; metal coated with an inorganic material and semiconductor; metal coated with an inorganic material and ceramic; and metal coated with an inorganic material, semiconductor, and ceramic. The mixture portion is connected to the external electrode and at least one of the in-plane connecting conductor and the interlayer connecting conductor.

摘要翻译： ESD保护装置包括：陶瓷多层基板，包括多个层叠绝缘层，外部电极，面内连接导体和层间连接导体中的至少一个以及混合部分。 混合部分沿着绝缘层之一的主表面设置，并且包括包含金属和半导体中的至少一种的分散材料; 金属和陶瓷; 金属，半导体和陶瓷; 半导体和陶瓷; 半导体; 涂有无机材料的金属; 用无机材料和半导体涂覆的金属; 涂有无机材料和陶瓷的金属; 以及用无机材料，半导体和陶瓷涂覆的金属。 混合部分连接到外部电极和面内连接导体和层间连接导体中的至少一个。

公开(公告)号：US20120133403A1

公开(公告)日：2012-05-31

申请号：US13389290

申请日：2010-06-16

申请人： Kenji Miyanaga ,  Takayuki Tsukizawa

发明人： Kenji Miyanaga ,  Takayuki Tsukizawa

IPC分类号： H03L7/08

CPC分类号： H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03L7/083 ,  H03L2207/05 ,  H03L2207/06

摘要： Included are: a modulation section including a feedback circuit configured to conduct feedback control of an output signal from a voltage controlled oscillator based on an inputted modulation signal, and a feed-forward circuit configured to calibrate the modulation signal and outputting the calibrated modulation signal to the voltage controlled oscillator; a signal output section configured to output, to the modulation section, a predetermined reference signal instead of the modulation signal when a calibration is conducted; and a gain correction section configured to, in a state where the feedback circuit is forming an open loop, calculate a frequency transition amount of the reference signal outputted by the voltage controlled oscillator, and correct a gain used for calibrating the modulation signal at the feed-forward circuit based on the calculated frequency transition amount.

摘要翻译： 包括：调制部，其包括反馈电路，其被配置为基于输入的调制信号对来自压控振荡器的输出信号进行反馈控制;以及前馈电路，被配置为校准调制信号并将校准的调制信号输出到 压控振荡器; 信号输出部，被配置为当进行校准时，将调制部分代替预定的参考信号，而不是调制信号; 以及增益校正部，被配置为在所述反馈电路形成开路的状态下，计算由所述压控振荡器输出的所述参考信号的频率变化量，并且校正用于校准所述馈送时的所述调制信号的增益 基于计算的频率转换量的前馈电路。