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1. 发明授权

US4991163A Optical information medium with sample mark area and multiple transcription prevention 失效
标题翻译：具有样品标记面积和多重转录预防的光学信息介质
公开(公告)号：US4991163A
公开(公告)日：1991-02-05
申请号：US153004
申请日：1988-02-08
申请人： Nobuhiro Tokushuku , Hitoshi Yanagihara , Katashi Hazama , Masaki Yoshii , Naotake Ebinuma
发明人： Nobuhiro Tokushuku , Hitoshi Yanagihara , Katashi Hazama , Masaki Yoshii , Naotake Ebinuma
IPC分类号： G11B7/00 , G11B7/004 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26
CPC分类号： G11B7/26 , G11B7/0938 , G11B7/24
摘要： An optical disc consists of a base plate, a reflective thin layer, and a protective thin layer. The optical disc has a sample mark area having two sample marks, one of which is off-set on one side of a track, another of which is off-set at an opposite side of a track. These sample marks are produced by an injection molding with replica technique. At the time of the injection molding, additional pressure moves soft injected plastic resin, which causes double transcription of the sample marks. For preventing the double transcription, groove areas are provided on opposite sides of the sample mark area. The groove areas provide an anchor effect at the time of injection molding.

2. 发明授权

US4201964A Elastic surface wave device 失效
标题翻译：弹性表面波装置
公开(公告)号：US4201964A
公开(公告)日：1980-05-06
申请号：US917220
申请日：1978-06-20
申请人： Yoshihiko Noro , Katashi Hazama , Jun Yamada , Hitoshi Yanagihara , Michiyori Miura
发明人： Yoshihiko Noro , Katashi Hazama , Jun Yamada , Hitoshi Yanagihara , Michiyori Miura
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145 , H03H9/64 , H03H9/04 , H03H9/26 , H03H9/30 , H03H9/32
CPC分类号： H03H9/14573 , H03H9/02842 , H03H9/1452 , H03H9/14547 , H03H9/14555 , H03H9/6496 , H03H9/02992
摘要： To eliminate disturbance signals caused by the reflection from the unitary stem areas of comb-like electrodes of an interdigital transducer in an elastic surface wave device, the edges of the unitary stem areas perpendicular to the surface wave propagating direction includes at least one pair of partial edges, the positions of the partial edges in each of the at least one pair of partial edges differ by (2n+1).multidot..lambda./4 from each other in the surface wave propagating direction, and the lengths of the partial edges in the each pair are equal to each other, where n represents zero or a positive integer and .lambda. represents the wavelength of the elastic surface.
摘要翻译：为了消除由弹性表面波装置中的叉指式换能器的梳状电极的整体茎区域的反射引起的干扰信号，垂直于表面波传播方向的整体茎区域的边缘包括至少一对部分边缘中，至少一对部分边缘中的每一个中的部分边缘的位置在表面波传播方向上彼此相差（2n + 1）×λ/ 4，并且每个边缘中的部分边缘的长度对彼此相等，其中n表示零或正整数，λ表示弹性表面的波长。

3. 发明授权

US4396851A Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US4396851A
公开(公告)日：1983-08-02
申请号：US211905
申请日：1980-12-01
申请人： Kiyoharu Kishimoto , Hitoshi Yanagihara , Katashi Hazama
发明人： Kiyoharu Kishimoto , Hitoshi Yanagihara , Katashi Hazama
IPC分类号： H03H3/08 , H03H9/145 , H01L41/00
CPC分类号： H03H9/1455
摘要： A surface acoustic wave device is provided with plural sets of input and output transducers arranged on a piezoelectric substrate with the input transducers and the output transducers being connected electrically in parallel, respectively. In order to minimize a loss which occurs due to the parallel connections of the input and output transducers, aperture dimensions of either the input transducers or the output transducers are selected such that static capacitances of the respective transducers are equal.
摘要翻译：表面声波装置设置有多组输入和输出换能器，其分别与输入换能器和输出换能器并联电连接在压电基片上。为了最小化由于输入和输出换能器的并联连接而发生的损耗，选择输入换能器或输出换能器的孔径尺寸，使得各个换能器的静态电容相等。

4. 发明授权

US4223285A Elastic surface wave filter 失效
标题翻译：弹性表面波滤波器
公开(公告)号：US4223285A
公开(公告)日：1980-09-16
申请号：US857908
申请日：1977-12-06
申请人： Katashi Hazama , Jun Yamada , Yoshihiko Noro
发明人： Katashi Hazama , Jun Yamada , Yoshihiko Noro
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145 , H03H9/64 , H04N9/77 , H03H9/04 , H03H9/26 , H03H9/32
CPC分类号： H03H9/6423 , H03H9/02874 , H03H9/1452
摘要： An elastic surface wave filter for use as an intermediate frequency filter in a color television receiver, comprising an input electrode provided on a piezoelectric substrate plate for converting an electric signal into elastic surface waves propagating through the surface layer of the piezoelectric substrate plate, a propagation path for the elastic surface waves in the piezoelectric substrate plate and an output electrode for converting the propagated elastic surface wave into an electric signal, wherein the fingers of the input electrode are so arranged that the position at which the overlap of the interleaved fingers is maximum is farther with respect to the output electrode than the middle point along the lengthwise direction of the input electrode and wherein the pitch between the adjacent interleaved fingers is non-uniform on both the sides of the position of the maximum overlap, whereby desired group delay and amplitude characteristics for predetermined frequencies are easily and simultaneously obtained.
摘要翻译：一种在彩色电视接收机中用作中频滤波器的弹性表面波滤波器，包括设置在压电基板上用于将电信号转换成通过压电基板的表面层传播的弹性表面波的输入电极，传播压电基板中的弹性表面波的路径和用于将传播的弹性表面波转换为电信号的输出电极，其中输入电极的指状物布置成使得交错的手指的重叠的位置最大相对于输出电极比沿着输入电极的长度方向的中点更远，并且其中相邻交错的手指之间的间距在最大重叠的位置的两侧是不均匀的，由此期望的组延迟和预定频率的振幅特性很容易同时获得。

5. 发明授权

US4296391A Surface-acoustic-wave filter for channel selection system of television receiver 失效
标题翻译：电视接收机频道选择系统的表面声波滤波器
公开(公告)号：US4296391A
公开(公告)日：1981-10-20
申请号：US954124
申请日：1978-10-24
申请人： Katashi Hazama , Akitsuna Yuhara
发明人： Katashi Hazama , Akitsuna Yuhara
IPC分类号： H03H9/145 , H03H9/64 , H03H9/72 , H03J5/24 , H03H9/68
CPC分类号： H03H9/6413 , H03H9/1455 , H03H9/72 , H03J5/24 , H03H9/6436 , H03H9/6453
摘要： A surface-acoustic-wave filter for a channel selection tuning system of a television receiver includes at least two comb filter elements, each of which comprises an input transducer provided on a piezoelectric substrate and adapted to convert an input electrical signal into an elastic surface wave, and first and second output transducers disposed on the substrate for receiving the elastic surface wave propagating in the same direction from the input transducer. The first and second output transducers are positioned from the input transducer with different distances. The transducers of the two comb filter elements are so designed that the respective comb filter elements respond to frequencies of different program channel bands over for example VHF and UHF bands. The distances of the first and the second output transducers from the input transducer in the wave propagating direction are so predetermined that reciprocal of the difference in delay time between the electrical signals derived from the first and second output transducers is equal to a divisor of an interchannel frequency difference in the corresponding channel band.
摘要翻译：一种用于电视接收机的频道选择调谐系统的表面声波滤波器包括至少两个梳状滤波器元件，每个梳状滤波器元件包括设置在压电基片上的输入换能器，其适于将输入电信号转换成弹性表面波以及设置在基板上的第一和第二输出换能器，用于接收从输入换能器沿相同方向传播的弹性表面波。第一和第二输出换能器从不同距离的输入换能器定位。两个梳状滤波器元件的换能器被设计成使得相应的梳状滤波器元件响应于例如VHF和UHF频带的不同节目频道频带的频率。第一和第二输出换能器与输入换能器在波传播方向上的距离是如此预定的，即从第一和第二输出换能器得到的电信号之间的延迟时间差的倒数等于通道间的除数相应频道频段的频差。

6. 发明授权

US4206380A Piezoelectric surface acoustic wave device with suppression of reflected signals 失效
标题翻译：具有抑制反射信号的压电声表面波器件
公开(公告)号：US4206380A
公开(公告)日：1980-06-03
申请号：US972215
申请日：1978-12-22
申请人： Katashi Hazama , Kentaro Hanma
发明人： Katashi Hazama , Kentaro Hanma
IPC分类号： H03H9/02 , H03H9/145 , H01L41/10
CPC分类号： H03H9/02842 , H03H9/1452
摘要： A surface acoustic wave device has an electrode finger structure in which the width of finger portions external of envelopes indicating a weighted overlap length and the length of the spaces existing between adjacent finger portions measured widthwise thereof are substantially equal to one half of the wavelength of the acoustic surface wave, the envelopes are symmetric about the center line of a propagation path for the surface acoustic wave, and the finger portions and the spaces between the finger portions are in opposite positional relation to each other about the center line of the propagation path. With this electrode finger structure, occurrence of disturbing reflected signal at the weighted interdigital electrode, which is used as an input/output electrode of the surface acoustic wave device and occurrence of wavefront distortion are prevented and production yield of the device is improved.
摘要翻译：表面声波装置具有电极指结构，其中信封外部的手指部分的宽度指示加权的重叠长度，并且其宽度方向上测量的相邻手指部分之间存在的空间的长度基本上等于波长的一半声表面波，信封围绕声表面波的传播路径的中心线对称，并且手指部分和指状部分之间的空间围绕传播路径的中心线彼此相对位置关系。通过这种电极指结构，可以防止用作声表面波装置的输入/输出电极的加权叉指电极的干扰反射信号的出现以及波前畸变的发生，从而提高装置的产量。

7. 发明授权

US4510530A Signal reproducing circuit for a video tape recorder 失效
标题翻译：用于录像机的信号再现电路
公开(公告)号：US4510530A
公开(公告)日：1985-04-09
申请号：US389968
申请日：1982-06-18
申请人： Kuniaki Miura , Akira Shibata , Jun Yamada , Katashi Hazama
发明人： Kuniaki Miura , Akira Shibata , Jun Yamada , Katashi Hazama
IPC分类号： G11B5/02 , H04N5/931 , H04N5/94 , H04N9/87 , H04N5/93
CPC分类号： H04N5/94 , H04N5/9315 , H04N9/87
摘要： In a FM luminance signal circuit of a signal reproducing circuit of a video tape recorder,(a) a reproduced signal is up-converted by an up-converter, the up-converted signal is divided into two frequency components by a surface acoustic wave filter having a first filter for peaking a high frequency component and a second filter for peaking a low frequency component, a limiter connected to the first filter, an amplifier connected to the second filter, and an adder of an output of a limiter and an output of an amplifier, and the reversal of the levels of the FM carrier signal and side band signal is prevented by above configuration.(b) A side-band glass delay line of 1H (one horizontal scan period) is provided to get 1H delayed luminance signal. Using main luminance signal and 1H delayed luminance signal, a line correlation circuit and a video dropout compensation circuit are realized.(c) In a PAL signal reproducing circuit, where a chrominance signal is delayed by 1H by a comb filter using 2H delay line, 1H delayed luminance signal is used to prevent a chrominance displacement from the luminance signal.
摘要翻译：在磁带录像机的信号再现电路的FM亮度信号电路中，（a）再现信号由上变频器进行上变频，上变换后的信号被表面声波滤波器分成两个频率分量具有用于使高频分量达峰化的第一滤波器和用于使低频分量达峰化的第二滤波器，连接到第一滤波器的限幅器，连接到第二滤波器的放大器和限幅器的输出的加法器放大器，并通过上述配置来防止FM载波信号和边带信号的电平反转。（b）提供1H（一个水平扫描周期）的边带玻璃延迟线以获得1H延迟亮度信号。使用主亮度信号和1H延迟亮度信号，实现线相关电路和视频压差补偿电路。（c）在PAL信号再现电路中，通过使用2H延迟线的梳状滤波器将色度信号延迟1H，使用1H延迟亮度信号来防止来自亮度信号的色度位移。

8. 发明授权

US4427515A Surface acoustic wave device and method for manufacturing the same 失效
标题翻译：表面声波装置及其制造方法
公开(公告)号：US4427515A
公开(公告)日：1984-01-24
申请号：US256960
申请日：1981-04-23
申请人： Akitsuna Yuhara , Shinya Iida , Hideo Abe , Kiyoharu Kishimoto , Katashi Hazama
发明人： Akitsuna Yuhara , Shinya Iida , Hideo Abe , Kiyoharu Kishimoto , Katashi Hazama
IPC分类号： H03H3/08 , H03H9/145 , C23C15/00
CPC分类号： H03H3/08
摘要： A surface acoustic wave device, a method for manufacturing the same and a manufacturing equipment therefor are disclosed. In the surface acoustic wave device having functional elements such as input and output interdigital electrodes of Al, Al-Si alloy or Al-Cu-Si alloy thin film strips and a grating type reflector, arranged on a piezoelectric substrate and any other bus conductors arranged on the same substrate, at least a portion of the functional elements and the bus conductors having a high frequency metal strip having a line width of no more than 2 .mu.m, at least the metal strip having the width of no more than 2 .mu.m has a film thickness of no less than 0.25 .mu.m at least a portion thereof but no more than an upper limit of an effective film thickness determined by a required characteristic of the surface acoustic wave device, whereby a transfer characteristic of the surface acoustic wave device is compensated and controlled, for example, a reflection efficiency of a grating type reflector is improved or a loss due to a D.C. resistance of the input and output electrodes is reduced.
摘要翻译：公开了一种声表面波装置及其制造方法及其制造装置。在具有诸如Al，Al-Si合金或Al-Cu-Si合金薄膜条的输入和输出叉指电极等功能元件的表面声波装置和布置在压电基板上的任何其它总线导体布置的光栅型反射器在相同的基板上，功能元件和总线导体的至少一部分具有线宽不大于2μm的高频金属条，至少宽度不大于2μm的金属条具有至少一部分的膜厚不小于0.25μm，但不超过由声表面波装置的要求特性确定的有效膜厚度的上限，由此表面声波装置的传递特性被补偿和控制，例如，光栅型反射器的反射效率提高或由于输入和输出电极的直流电阻的损耗减小。

9. 发明授权

US4422000A Unidirectional surface acoustic wave device with meandering electrode 失效
标题翻译：具有曲折电极的单向表面声波装置
公开(公告)号：US4422000A
公开(公告)日：1983-12-20
申请号：US374758
申请日：1982-05-04
申请人： Jun Yamada , Katashi Hazama
发明人： Jun Yamada , Katashi Hazama
IPC分类号： H03H3/08 , H03H9/145
CPC分类号： H03H9/14508
摘要： A surface acoustic wave device on a piezoelectric substrate comprises an interdigital transducer having an interdigital sending part in the forward direction and an interdigital reflecting part in the reverse direction. An electrical phase difference of .phi. (radian) is applied between the sending and reflecting parts, while the distance between the sending and reflecting parts providing a geometrical phase difference therebetween is established to be ##EQU1## where n is a positive integer and .lambda..sub.o is the wavelength of surface acoustic wave. A third, common electrode meanders between the sending and reflecting electrodes.
摘要翻译：压电基板上的表面声波装置包括具有向前方向的叉指式发送部的交叉指型变换器和反方向的叉指反射部。在发送和反射部分之间施加phi（弧度）的电相位差，而在其间提供几何相位差的发送和反射部分之间的距离被确定为，其中n是正整数，λo是声表面波的波长。第三，在发射和反射电极之间的公共电极曲折。

10. 发明授权

US4390807A Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US4390807A
公开(公告)日：1983-06-28
申请号：US337718
申请日：1982-01-07
申请人： Kiyoharu Kishimoto , Katashi Hazama , Akitsuna Yuhara
发明人： Kiyoharu Kishimoto , Katashi Hazama , Akitsuna Yuhara
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145 , H03H9/64 , H01L41/08
CPC分类号： H03H9/1455 , H03H9/02874 , H03H9/145 , H03H9/6426
摘要： In a preferred embodiment, a surface acoustic wave device comprises a piezoelectric substrate, a first electrode formed on the substrate and acting to convert an electrical signal into a surface acoustic wave, and second and third electrodes formed on the substrate and acting to convert the surface acoustic wave into an electrical signal. The second and third electrodes are disposed at different distances from the first electrode and connected electrically with each other. Electrode fingers of the second electrode are arranged in a relationship of the opposite polarity with respect to those of the third electrode so as to cause peaks in the constant frequency interval multi-peak frequency characteristics of the device acting as a filter to take place at frequencies which are (integer+1/2) times the constant frequency interval .DELTA.f. In another preferred embodiment, a plurality of surface acoustic wave device units are formed on a common piezoelectric substrate. Respective units include a set of first, second and third electrodes and operate at different frequency bands which partly overlap. The distance between the first electrode and the second electrode or the third electrode is determined in the respective units such that the delay time due to the propagation of the surface acoustic wave between the input and output electrodes is equal in the respective units and the output voltage of the output electrode is in phase in the respective units, thereby providing accurate peak frequencies over the whole frequency band at which the surface acoustic wave device operates.
摘要翻译：在优选实施例中，表面声波装置包括压电基片，形成在基片上并用于将电信号转换为表面声波的第一电极，以及形成在基片上的第二和第三电极，声波变成电信号。第二和第三电极设置在与第一电极不同的距离处并且彼此电连接。第二电极的电极指状物以与第三电极相反的极性的关系布置，从而在作为滤波器的装置的频率的恒定频率间隔多峰值频率特性中产生峰值它们是恒定频率间隔DELTA f的（整数+ 1/2）倍。在另一个优选实施例中，在公共压电基片上形成多个声表面波器件单元。各个单元包括一组第一，第二和第三电极，并且在部分重叠的不同频带上操作。在各单元中确定第一电极和第二电极或第三电极之间的距离，使得由于输入和输出电极之间的表面声波的传播引起的延迟时间在各单元中相等，并且输出电压输出电极在相应的单元中同相，从而在声表面波器件工作的整个频带上提供精确的峰值频率。

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