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12 条记录 (耗时 0.037 秒)

    Filter device for transmitter-receiver antenna
    2.
    发明授权
    Filter device for transmitter-receiver antenna 失效
    发射机 - 接收机天线滤波器

    公开(公告)号：US5374906A

    公开(公告)日：1994-12-20

    申请号：US97185

    申请日：1993-07-27

    申请人： Toshiharu Noguchi ,  Kuniaki Kiyosue ,  Takehiko Yoneda

    发明人： Toshiharu Noguchi ,  Kuniaki Kiyosue ,  Takehiko Yoneda

    IPC分类号： H01P1/205 ,  H01P1/212 ,  H01P1/213 ,  H01P7/04

    CPC分类号： H01P1/2136

    摘要： A filter device for a transmitter-receiver antenna includes a transmission side filter having resonators and a reception side filter having resonators. Each of the transmission side resonators has a first characteristic impedance ratio other than one. On the other hand, each of the reception side resonators has a second characteristic impedance ratio being set to a value which prevents spurious resonance of the reception side filter at an integral multiple of a fundamental resonance frequency of the transmission side filter, so as to avoid the situation where spurious components increase at the above-noted integral multiple in a frequency characteristic of the transmission side filter being affected by a frequency characteristic of the reception side filter.

    摘要翻译： 用于发射机 - 接收机天线的滤波器装置包括具有谐振器的发射侧滤波器和具有谐振器的接收侧滤波器。 每个发送侧谐振器具有除了一个之外的第一特性阻抗比。 另一方面，每个接收侧谐振器的第二特性阻抗比被设定为防止接收侧滤波器的杂散谐振为发送侧滤波器的基本共振频率的整数倍的值，以避免 发送侧滤波器的频率特性中的杂散分量以上述积分倍数增加的情况受到接收侧滤波器的频率特性的影响。

    High-frequency filter having increased mechanical strength
    3.
    发明授权
    High-frequency filter having increased mechanical strength 失效
    高频滤波器具有增加的机械强度

    公开(公告)号：US5276412A

    公开(公告)日：1994-01-04

    申请号：US890424

    申请日：1992-05-29

    申请人： Takehiko Yoneda ,  Kazuhiro Eguchi ,  Hiromitsu Taki

    发明人： Takehiko Yoneda ,  Kazuhiro Eguchi ,  Hiromitsu Taki

    IPC分类号： C01G25/00 ,  C04B35/48 ,  H01B3/12 ,  H01P1/205 ,  H01P7/10 ,  H01P11/00 ,  H01P1/201

    CPC分类号： H01P1/2053

    摘要： A high-frequency filter of the type having a plurality of resonators open at least at one end thereof, a dielectric board forming an input/output coupling and an interstage coupling, and a case for holding therein the resonators and the dielectric board, wherein the dielectric board is made of a ceramic having a critical stress intensity factor K.sub.1c of not less than 5 MPa.multidot.m.sup.1/2 and a dielectric dissipation factor tan. .delta. of not exceeding 1% in a working frequency band of said high-frequency filter, and wherein electrodes are provided on the dielectric board to form an input/output coupling capacity and an interstage coupling capacity. The high-frequency filter of the foregoing construction has the advantage of an excellent mechanical strength which is capable of withstanding severe mechanical loads such as falling impacts or various stresses.

    摘要翻译： 一种高频滤波器，其具有至少在其一端开放的多个谐振器，形成输入/输出耦合的介质板和级间耦合，以及用于保持谐振器和电介质板的壳体，其中， 电介质板由具有不小于5MPa * m1 / 2的临界应力强度因子K1c和介电损耗因数tan的陶瓷制成。 （delta）在所述高频滤波器的工作频带中不超过1％，并且其中电极设置在电介质板上以形成输入/输出耦合能力和级间耦合能力。 上述结构的高频过滤器具有优异的机械强度的优点，其能够承受严重的机械负载，例如落下的冲击或各种应力。

    Flat type dielectric filter
    4.
    发明授权
    Flat type dielectric filter 失效
    平面型介质滤波器

    公开(公告)号：US5248949A

    公开(公告)日：1993-09-28

    申请号：US850279

    申请日：1992-03-12

    申请人： Kazuhiro Eguchi ,  Fumio Fukushima ,  Koji Nishimura ,  Katsumi Sasaki ,  Takehiko Yoneda ,  Hiromitsu Taki

    发明人： Kazuhiro Eguchi ,  Fumio Fukushima ,  Koji Nishimura ,  Katsumi Sasaki ,  Takehiko Yoneda ,  Hiromitsu Taki

    IPC分类号： H01P1/203 ,  H01P1/205 ,  H01P1/212 ,  H01P5/08 ,  H01P11/00

    CPC分类号： H01P1/20345

    摘要： A flat type dielectric filter comprises a substantially U-shaped strip line formed such that each center frequency of spurious output deviates from each odd number frequency times the center frequency of the dielectric filter. That is, it comprises a first portion so curved to form an open loop and two second portions formed to have a larger width than the first portion, each of the second portions being provided to an end of the first portion such that each extends in the opposite direction to the other. In this filter, input/output electrodes confronting ends of U-shaped strip line can be formed on a different layer from the layer where the resonator is formed in order to reduce its size. Reduction of size can be obtained by vertically folding the U-shaped strip line extending horizontally. Terminals of this filter formed on the side surface have a first layer formed on the side surface and a second layer formed on the first layer. The first layer is made of silver, the second layer nickel, or the first layer copper, the second layer solder. This filter has two conducting plates sandwiching dielectric substrates including each resonator, the conducting plate being coated with a epoxy resin or dielectric substance.

    摘要翻译： 扁平型介质滤波器包括基本上U形的带状线，其形成为使得杂散输出的每个中心频率偏离每个奇数频率乘以介质滤波器的中心频率。 也就是说，它包括弯曲形成开环的第一部分和形成为具有比第一部分更大的宽度的两个第二部分，每个第二部分设置在第一部分的端部，使得每个在 与另一方相反。 在该滤波器中，可以在与形成谐振器的层不同的层上形成面对U字形带状线的端部的输入/输出电极，以减小其尺寸。 可以通过垂直折叠水平延伸的U形带状线来获得尺寸的减小。 形成在侧面上的该过滤器的端子具有形成在侧表面上的第一层和形成在第一层上的第二层。 第一层由银制成，第二层为镍，或第一层为铜，第二层为焊料。 该过滤器具有两个导电板，夹持包括每个谐振器的电介质基片，该导电板涂覆有环氧树脂或介电材料。

    Dielectric ceramic composition
    5.
    发明授权
    Dielectric ceramic composition 失效
    介电陶瓷组合物

    公开(公告)号：US5256639A

    公开(公告)日：1993-10-26

    申请号：US947814

    申请日：1992-09-21

    申请人： Takuya Fujimaru ,  Takehiko Yoneda ,  Hiromi Tokunaga ,  Hiromitsu Taki

    发明人： Takuya Fujimaru ,  Takehiko Yoneda ,  Hiromi Tokunaga ,  Hiromitsu Taki

    IPC分类号： C04B35/468 ,  H01B3/12 ,  H01P7/10 ,  C04B35/46 ,  C04B35/49

    CPC分类号： C04B35/4686 ,  H01B3/12 ,  H01P7/10

    摘要： A dielectric ceramic composition represented by the compositional formula: .sub.x BaO-.sub.y TiO.sub.2 -.sub.z Nd.sub.2 O.sub.3 -.sub.t Sm.sub.2 O.sub.3 -.sub.w Bi.sub.2 O.sub.3 so composed as to be in the molar fractions of 0.06.ltoreq.x.ltoreq.0.25, 0.60.ltoreq.y.ltoreq.0.80, 0.05.ltoreq.z.ltoreq.0.18, 0 0.15 is excluded. As an additive, at least one of Al.sub.2 O.sub.3, ZrO.sub.2, etc. may be added. Part of Ba may be replaced with at least one of Sr, Ca and Mg. The Sm.sub.2 O.sub.3 and Nd.sub.2 O.sub.3 each may have a purity of at least 70 wt. %.

    摘要翻译： 由组成式xBaO-yTiO2-zNd2O3-tSm2O3-wBi2O3表示的电介质陶瓷组合物，其摩尔分数为0.06≤x≤0.25,0.60≤y≤0.80,0.05 如果x + y + z + t + w =​​ 1，并且Y <0.68和Z>的组成范围，

    Dielectric resonator and process for manufacturing the same
    6.
    发明授权
    Dielectric resonator and process for manufacturing the same 失效
    介质谐振器及其制造方法

    公开(公告)号：US5210511A

    公开(公告)日：1993-05-11

    申请号：US795149

    申请日：1991-11-20

    申请人： Yasuhiro Izumi ,  Ryoichi Makimoto ,  Takehiko Yoneda ,  Hiromitsu Taki

    发明人： Yasuhiro Izumi ,  Ryoichi Makimoto ,  Takehiko Yoneda ,  Hiromitsu Taki

    IPC分类号： H01G4/12 ,  H01P7/04 ,  H01P11/00

    CPC分类号： H01P7/04

    摘要： A dielectric resonator comprising a cylindrical substrate comprised of a dielectric ceramic, a first conductive film comprised of copper, formed on the inner surface, outer surface and one end of said cylindrical substrate, and a second conductive film comprised of at least one solder and tin, formed on said first conductive film. Thus the dielectric resonator of the present invention can be free from oxidation of the copper film when heating is carried out not in an inert gas environment but in the atmosphere. Hence it becomes unnecessary to use various devices for carrying out the heating in an inert gas environment as so required in the conventional cases. This also enables reduction of the number of processing steps, resulting in an improvement in productivity. Moreover, its weatherability can be improved, so that it can promise a long lifetime.

    摘要翻译： 一种介质谐振器，包括由介电陶瓷构成的圆柱形基板，由铜形成的第一导电膜，形成在所述圆柱形基板的内表面，外表面和一端上，第二导电膜由至少一种焊料和锡 ，形成在所述第一导电膜上。 因此，当不是在惰性气体环境中而是在大气中进行加热时，本发明的介质谐振器可以不会氧化铜膜。 因此，在常规情况下，不需要在惰性气体环境中使用各种装置进行加热。 这也能够减少加工步骤的数量，从而提高生产率。 此外，其耐候性可以提高，从而可以承诺长期使用寿命。

    Sintered Ceramics for Mounting Light-Emitting Element
    8.
    发明申请
    Sintered Ceramics for Mounting Light-Emitting Element 审中-公开
    用于安装发光元件的烧结陶瓷

    公开(公告)号：US20080269040A1

    公开(公告)日：2008-10-30

    申请号：US12067989

    申请日：2006-09-26

    申请人： Ken Sugawara ,  Yuichiro Minabe ,  Takehiko Yoneda ,  Masao Ariyuki

    发明人： Ken Sugawara ,  Yuichiro Minabe ,  Takehiko Yoneda ,  Masao Ariyuki

    IPC分类号： C04B35/00 ,  B32B3/00

    CPC分类号： C04B35/111 ,  C04B35/581 ,  C04B41/009 ,  C04B41/5031 ,  C04B41/87 ,  C04B2111/80 ,  H01L33/486 ,  H01L33/60 ,  H01L2924/0002 ,  Y10T428/24479 ,  C04B41/0072 ,  C04B41/4556 ,  H01L2924/00

    摘要： A sintered ceramics for mounting a light-emitting element, which is capable of realizing high optical reflectance over the entire region from ultraviolet radiation to visible light. The sintered ceramics has a light-reflective face of which reflectance to light in each wavelength in the range of 250 nm˜750 nm is 70% or more. The light-reflective face satisfies following reaction: |RA−RB|≦20 when reflectance to light of 750 nm is defined as RA%, and reflectance to light of 300 nm is defined as RB. The sintered ceramics has not layer to be peeled from the light-reflective face when a Tape Peeling Test is carried out to the light-reflective face in accordance with the method described in JIS H8504 (1990).

    摘要翻译： 一种用于安装发光元件的烧结陶瓷，其能够在从紫外线到可见光的整个区域上实现高的光反射率。 烧结陶瓷具有在250nm〜750nm的范围内的各波长的光的反射率为70％以上的光反射面。 光反射面满足以下反应：<？in-line-formula description =“In-line formula”end =“lead”？> | R B 将300nm的光定义为R B B。 当根据JIS H8504（1990）中描述的方法对光反射面进行剥皮试验时，烧结陶瓷没有从光反射面剥离的层。

    Non-oxide ceramic having oxide layer on the surface thereof, method for production thereof and use thereof
    9.
    发明申请
    Non-oxide ceramic having oxide layer on the surface thereof, method for production thereof and use thereof 审中-公开
    其表面具有氧化物层的非氧化物陶瓷，其制造方法及其用途

    公开(公告)号：US20070161494A1

    公开(公告)日：2007-07-12

    申请号：US10587327

    申请日：2005-01-21

    申请人： Hiroyuki Fukuyama ,  Takehiko Yoneda ,  Masao Ariyuki ,  Takeshi Sunaoshi ,  Hideki Sato

    发明人： Hiroyuki Fukuyama ,  Takehiko Yoneda ,  Masao Ariyuki ,  Takeshi Sunaoshi ,  Hideki Sato

    IPC分类号： C04B35/00 ,  B65D85/00

    CPC分类号： C04B41/009 ,  C04B41/5031 ,  C04B41/87 ,  H01L21/4807 ,  H01L23/15 ,  H01L2924/0002 ,  C04B41/0072 ,  C04B41/4519 ,  C04B35/581 ,  H01L2924/00

    摘要： A non-oxide ceramics having improved performances and functions by forming a high-quality oxide film on the surface of a non-oxide ceramics such as aluminum nitride. The method for the formation of the non-oxide ceramics comprises the steps of: (1) providing a non-oxide ceramics; (2) introducing the non-oxide ceramics into a furnace and then regulating the atmosphere within the furnace so as to have an oxidizing gas content of not more than 0.5 mmol in terms of total number of moles of the oxidizing gas per m3 of the inside of the furnace; (3) heating the non-oxide ceramics to a temperature at or above a temperature, which is 300° C. below the oxidation start temperature of the non-oxide ceramics, while maintaining the low-oxidizing gas atmosphere and (4) bringing the non-oxide ceramics heated in the step (3) into contact with an oxidizing gas and then holding the non-oxide ceramics at a temperature above the oxidation start temperature of the non-oxide ceramics to form an oxide layer, and that, in the step (4), until at least two min. elapses after the arrival of the temperature at or above the oxidation start temperature after the start of the contact between the non-oxide ceramics and the oxidizing gas, the pressure or partial pressure of the oxidizing gas is maintained at not more than 50 kPa.

    摘要翻译： 通过在诸如氮化铝的非氧化物陶瓷的表面上形成高质量的氧化物膜而具有改进的性能和功能的非氧化物陶瓷。 形成非氧化物陶瓷的方法包括以下步骤：（1）提供非氧化物陶瓷; （2）将非氧化物陶瓷引入炉中，然后调节炉内的气氛，使得氧化气体含量以每立方米内的氧化气体的总摩尔数计不大于0.5mmol 的炉子 （3）在保持低氧化性气体气氛的同时，将非氧化物陶瓷的温度加热到低于非氧化物陶瓷的氧化开始温度300℃以下的温度，（4）使 在步骤（3）中加热的非氧化物陶瓷与氧化气体接触，然后将非氧化物陶瓷保持在高于非氧化物陶瓷的氧化开始温度的温度以形成氧化物层，并且在 步骤（4），直到至少两分钟。 在非氧化物陶瓷与氧化气体接触开始之后温度达到或高于氧化开始温度时，氧化气体的压力或分压保持在50kPa以下。