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1. 发明授权

US4996682A Optical information medium having paired wobble pitts with continuous groove therebetween 失效
标题翻译：光信息介质具有成对的摆动凹坑，它们之间具有连续的凹槽
公开(公告)号：US4996682A
公开(公告)日：1991-02-26
申请号：US260387
申请日：1988-10-20
申请人： Hitoshi Yanagihara , Nobuhiro Tokushuku
发明人： Hitoshi Yanagihara , Nobuhiro Tokushuku
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/26
CPC分类号： G11B7/24085 , G11B7/0045 , G11B7/261
摘要： The present invention relates to an optical information medium for recording and reproducing information optically. Particularly, it is concerned with a so-called sample servo type optical information medium wherein an optical head traces over the center line of an imaginary track on the basis of information obtained from at least a pair of wobble pits disposed on both sides of the said imaginary track center line. A continuous groove is formed between the paired wobble pits along the imaginary track center line in a certain area of the optical information medium so that the deviation of each wobble pit from the imaginary track center line can be easily grasped and the conditions of the wobble pits being formed can be estimated. The quality of the medium being manufactured can be easily judged by the presence of such continuous groove.
摘要翻译：光信息介质技术领域本发明涉及用于光学信息记录和再现信息的光学信息介质。特别地，它涉及一种所谓的采样伺服型光信息介质，其中光头基于从设置在所述多个虚拟轨道的两侧的至少一对摆动凹坑获得的信息，虚拟轨道中心线。在光信息介质的特定区域中沿着虚拟轨道中心线的成对摆动凹坑之间形成连续的凹槽，使得可以容易地掌握每个摆动凹坑与虚拟轨迹中心线的偏差，并且摆动凹坑的条件正在形成可以估计。可以通过存在这种连续的凹槽来容易地判断制造的介质的质量。

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

US4799118A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US4799118A
公开(公告)日：1989-01-17
申请号：US918338
申请日：1986-10-14
申请人： Masamichi Yamada , Masaaki Kurebayashi , Masakatsu Saito , Hitoshi Yanagihara , Katsuo Konishi , Toshio Tsuchiya
发明人： Masamichi Yamada , Masaaki Kurebayashi , Masakatsu Saito , Hitoshi Yanagihara , Katsuo Konishi , Toshio Tsuchiya
IPC分类号： G11B5/31 , G11B5/187 , G11B5/127
CPC分类号： G11B5/3116 , G11B5/31 , G11B5/3143
摘要： In a thin film magnetic head consisting of a non-magnetic substrate, and a multilayer structure superposed thereon and including a lower core, a gap material layer, a thin film coil and an upper core, etc., the head sliding surface of the lower core and that of the upper core are so formed that they become wider with increasing distance from the surface of the gap material layer.
摘要翻译：在由非磁性基板构成的薄膜磁头和叠置在其上的包括下芯，间隙材料层，薄膜线圈和上芯等的多层结构中，下层的磁头滑动面芯和上芯的形状使得它们随着与间隙材料层的表面的距离的增加而变宽。

4. 发明授权

US5539710A Video optical disk system compatible with both read only and writable optical disks having the same recording format 失效
标题翻译：视频光盘系统与具有相同记录格式的只读和可写光盘兼容
公开(公告)号：US5539710A
公开(公告)日：1996-07-23
申请号：US24359
申请日：1993-03-01
申请人： Nobuhiro Tokushuku , Masaaki Kurebayashi , Kouichi Moritani , Hitoshi Yanagihara , Katsuo Konishi , Katsuyuki Tanaka , Yoshihiko Noro , Yoshie Kodera
发明人： Nobuhiro Tokushuku , Masaaki Kurebayashi , Kouichi Moritani , Hitoshi Yanagihara , Katsuo Konishi , Katsuyuki Tanaka , Yoshihiko Noro , Yoshie Kodera
IPC分类号： G11B7/00 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/095 , G11B7/24 , G11B7/243 , G11B7/28 , G11B19/12 , G11B20/00 , G11B20/12 , G11B17/22
CPC分类号： G11B20/1251 , G11B19/12 , G11B7/0037 , G11B7/00454 , G11B7/00455 , G11B7/0051 , G11B7/0903 , G11B7/0941 , G11B7/0956 , G11B7/24 , G11B7/0045 , G11B7/005 , G11B7/0908 , G11B7/243
摘要： A video optical disk system which can record/reproduce information in the same recording format as that of a read only type optical disk such as an LD, and is therefore compatible with both the read only type optical disk and a writable optical disk. A writable optical disk exhibiting a C/N ratio of at least 60 [dB] is employed, and has information recorded thereon with the same address signals as those of the LD and in the NTSC direct FM recording format. An optical head and an image processing circuit which are included in a player unit are made common to the recorded disk and the LD, and characteristics of a focusing/tracking control circuit, an RF signal preamplifier circuit and a tilt control circuit which are included in the player unit are changed over on the basis of reflectances of both types of optical disks, thereby enabling both the recorded disk and the LD to be reproduced. The users of the optical disk system can produce original video software by themselves, and can effectively utilize a software stock of read only type optical disks.
摘要翻译：可以以与诸如LD这样的只读型光盘相同的记录格式记录/再现信息的视频光盘系统，因此与只读型光盘和可写光盘兼容。采用C / N比至少为60 [dB]的可写光盘，并且具有与LD和NTSC直接FM记录格式相同的地址信号记录在其上的信息。包括在播放器单元中的光学头和图像处理电路与记录的盘和LD共同，以及聚焦/跟踪控制电路，RF信号前置放大器电路和倾斜控制电路的特性包括在基于两种类型的光盘的反射率来改变播放器单元，从而能够再现记录的盘和LD两者。光盘系统的用户可以自己生产原始的视频软件，可以有效利用只读型光盘的软件库。

5. 发明授权

US6057630A Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US6057630A
公开(公告)日：2000-05-02
申请号：US61125
申请日：1998-04-16
申请人： Hitoshi Yanagihara , Takashi Shiba , Katsumi Itoh , Akitsuna Yuhara
发明人： Hitoshi Yanagihara , Takashi Shiba , Katsumi Itoh , Akitsuna Yuhara
IPC分类号： H03H9/145 , H03H9/02 , H03H9/25 , H03H9/64 , H01L41/04 , H03H9/00
CPC分类号： H03H9/02842 , H03H9/6489
摘要： There is provided a surface acoustic wave device for use as a filter in a television receiver set which can reduce reflection waves generated from outermost electrodes of input and output interdigital transducers to improve various filter characteristics. In the surface acoustic wave device having, on a piezoelectric substrate, the input interdigital transducer for converting an electric signal into a surface acoustic wave and the output interdigital transducer, disposed to oppose the input interdigital transducer, for converting the surface acoustic wave resulting from the conversion by the input interdigital transducer into an electric signal, a first dummy electrode is provided to a first outermost electrode finger of the output interdigital transducer, the first outermost electrode finger being located at one end of the output interdigital transducer opposite to the input interdigital transducer, and having an electrode aperture length of .lambda./4 where n represents a wavelength of the surface acoustic wave, and a second dummy electrode is provided to a second outermost electrode finger of the input interdigital transducer, the second outermost electrode finger being located at one edge of the input interdigital transducer opposite to the output interdigital transducer, and having an electrode aperture length of .lambda./4.
摘要翻译：提供了一种用作电视接收机中的滤波器的表面声波装置，其可以减少由输入和输出叉指式换能器的最外侧电极产生的反射波，以改善各种滤波器特性。在压电基板上具有用于将电信号转换成表面声波的输入叉指换能器和与输入叉指式换能器相对设置的输出叉指式换能器的声表面波装置中，用于转换由由输入叉指式换能器转换为电信号，第一虚拟电极被提供给输出叉指式换能器的第一最外电极指，第一最外电极指位于与输入叉指式换能器相对的输出叉指式换能器的一端，并且具有λ/ 4的电极孔径长度，其中n表示声表面波的波长，并且第二虚拟电极设置到输入叉指式换能器的第二最外电极指，第二最外电极指位于一个输入叉指传感器的边缘相反到输出叉指式换能器，并具有λ/ 4的电极孔径长度。

6. 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.

7. 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。

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