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11. 发明申请

US20070096592A1 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US20070096592A1
公开(公告)日：2007-05-03
申请号：US10595237
申请日：2004-08-06
申请人： Michio Kadota , Takeshi Nakao
发明人： Michio Kadota , Takeshi Nakao
IPC分类号： H03H9/25
CPC分类号： H03H9/02559 , H03H3/08
摘要： A surface acoustic wave device includes a piezoelectric substrate made of LiNbO3 having an electromechanical coupling coefficient k whose square is at least about 0.025, at least one electrode that is made of a metal whose density is greater than that of Al or an alloy primarily including the metal or that is composed of laminated films made of a metal whose density is greater than that of Al or an alloy primarily including the metal and another metal, the electrode being disposed on the piezoelectric substrate, a first insulating layer disposed in a region other than a region where the at least one electrode is disposed, the thickness of the first insulating layer being substantially equal to that of the electrode, and a second insulating layer covering the electrode and the first insulating layer. The density of the electrode is at least about 1.5 times greater than that of the first insulating layer.
摘要翻译：表面声波装置包括由LiNbO 3 3制成的压电基片，其具有至少约0.025的方形的机电耦合系数k，至少一个由密度高于其的金属制成的电极。的Al或主要包含金属的合金，或由密度大于Al的金属或主要包含金属的合金的金属和其它金属构成的层压膜构成，所述电极设置在压电基板上，第一绝缘层，其设置在除设置所述至少一个电极的区域以外的区域中，所述第一绝缘层的厚度与所述电极的厚度基本相等;以及覆盖所述电极和所述第一绝缘层的第二绝缘层。电极的密度比第一绝缘层的密度高至少约1.5倍。

12. 发明授权

US07054120B2 Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect 失效
标题翻译：具有垂直记录介质和头部的磁性装置具有使用隧道效应的多层再现元件
公开(公告)号：US07054120B2
公开(公告)日：2006-05-30
申请号：US10700500
申请日：2003-11-05
申请人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
发明人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B5/3929 , G11B5/3967 , G11B2005/0002 , G11B2005/0016 , G11B2005/3996 , H01F10/324 , H01F10/3254 , H01F10/3268 , H01L43/08 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49155
摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.
摘要翻译：磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件至少在相对的磁性层上形成端子，使得电流在中间层中流动。构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场穿透特性，穿过中间层。

13. 发明授权

US06278593B1 Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effect 失效
标题翻译：使用隧道磁阻效应的磁阻效应元件和磁头
公开(公告)号：US06278593B1
公开(公告)日：2001-08-21
申请号：US09468309
申请日：1999-12-21
申请人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
发明人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
IPC分类号： G11B539
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B5/3929 , G11B5/3967 , G11B2005/0002 , G11B2005/0016 , G11B2005/3996 , H01F10/324 , H01F10/3254 , H01F10/3268 , H01L43/08 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49155
摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semicondutor or an antiferromagnetic material against the magnetic layers, and the magneto-resistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.
摘要翻译：磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件具有至少形成在相对的磁体上的端子层，使得电流在中间层中流动。构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场穿透特性，穿过中间层。

14. 发明授权

US5490133A Optical information processing apparatus and method of controlling position of optical spot and reproducing signals 失效
标题翻译：光信息处理装置和控制光点位置和再现信号的方法
公开(公告)号：US5490133A
公开(公告)日：1996-02-06
申请号：US772443
申请日：1991-10-07
申请人： Shigeru Nakamura , Mariko Umeda , Takeshi Nakao , Akira Arimoto
发明人： Shigeru Nakamura , Mariko Umeda , Takeshi Nakao , Akira Arimoto
IPC分类号： G11B7/007 , G11B7/09 , G11B7/125 , G11B7/135 , G11B11/105 , G11B7/00
CPC分类号： G11B7/1353 , G11B11/10543 , G11B11/10576 , G11B7/0901 , G11B7/0909 , G11B7/0917 , G11B7/128 , G11B7/1367 , G11B7/13922 , G11B2007/13727 , G11B7/00745 , G11B7/0938 , G11B7/0943
摘要： An optical information processing apparatus comprising a diffraction grating for producing a zero-order beam which is a beam emitted by a light source and allowed to pass therethrough and two plus and minus first-order sub-beams respectively having positive and negative astigmatisms, radiated in directions at slight angles different from the main beam, wherein said two sub-beams are focused at opposite positions across said main beam, wherein focusing control is performed by a focusing error signal detected from a difference of signal amplitudes obtained from the respective reflected light quantities of said two sub-beams and wherein tracking control is performed by an off-track signal obtained from a signal according to a reflected light quantity of said main beam. In an apparatus for magneto-optically reproducing information, above all else, a wave plate is inserted between the focusing lens and the separating optical system, thereby increasing the reflected light quantities and stabilizing the magneto-optical signal, focusing signal and tracking signal.
摘要翻译：一种光学信息处理设备，包括用于产生零光束的衍射光栅，该光束是由光源发射并允许通过的光束，以及分别具有正和负散光的两个正负子像素，辐射在方向以与主波束不同的微小角度，其中所述两个子波束聚焦在穿过所述主波束的相对位置，其中聚焦控制由通过从各反射光量获得的信号幅度差检测的聚焦误差信号来执行的所述两个子光束，并且其中跟踪控制由根据所述主光束的反射光量从信号获得的偏离轨道信号执行。在用于磁光再现信息的装置中，首先，在聚焦透镜和分离光学系统之间插入波片，由此增加反射光量并稳定磁光信号，聚焦信号和跟踪信号。

15. 发明授权

US5315573A Non-linear optical saturable absorber layer in an optical disk to discriminate wavelength above or below a threshold level of intensity 失效
标题翻译：在光盘中的非线性光可饱和吸收层，以将波长区分为高于或低于阈值强度水平
公开(公告)号：US5315573A
公开(公告)日：1994-05-24
申请号：US922375
申请日：1992-07-31
申请人： Takeshi Nakao , Akira Arimoto , Kensuke Ogawa , Hirofumi Sukeda , Hisataka Sugiyama
发明人： Takeshi Nakao , Akira Arimoto , Kensuke Ogawa , Hirofumi Sukeda , Hisataka Sugiyama
IPC分类号： G11B7/005 , G11B7/12 , G11B7/24
CPC分类号： G11B7/24 , G11B7/005 , G11B7/12 , Y10S430/146
摘要： An information recording medium for suppressing the interferences of bits before and after reproduction and improving the optical resolution with saturable absorber 102 disposed adjacent or in an information recording medium layer 103. The recorded information is detected only from a region having a predetermined optical intensity or more of the focused spot so that minute information bits smaller than the optical resolution can be reproduced to improve the recording density of an optical disk drive drastically.
摘要翻译：一种信息记录介质，用于抑制在再现之前和之后的比特的干扰，并提高与信息记录介质层103相邻或在信息记录介质层103中设置的可饱和吸收体102的光学分辨率。所记录的信息仅从具有预定光强度或更大的区域检测的聚焦点，使得可以再现小于光学分辨率的微小信息比特，以提高光盘驱动器的记录密度。

16. 发明授权

US5270987A Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor 失效
标题翻译：磁光记录和再现方法，磁光存储装置及其磁光记录介质
公开(公告)号：US5270987A
公开(公告)日：1993-12-14
申请号：US509743
申请日：1990-04-17
申请人： Toshimitsu Kaku , Shigeru Nakamura , Masahiko Takahashi , Toshio Niihara , Harukazu Miyamoto , Norio Ohta , Takeshi Nakao , Hirofumi Sukeda , Masahiro Ojima , Takashi Toyooka , Tsuneo Suganuma , Fumiyoshi Kirino , Yoshinori Miyamura
发明人： Toshimitsu Kaku , Shigeru Nakamura , Masahiko Takahashi , Toshio Niihara , Harukazu Miyamoto , Norio Ohta , Takeshi Nakao , Hirofumi Sukeda , Masahiro Ojima , Takashi Toyooka , Tsuneo Suganuma , Fumiyoshi Kirino , Yoshinori Miyamura
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10536 , G11B11/10545 , G11B11/10552 , G11B11/10558 , G11B11/10593 , G11B11/10571
摘要： A magnetic field of a polarity corresponding to information to be recorded is applied while a recording spot having a high energy is irradiated to a magneto-optical recording medium to record domains representing the information along a track. The recorded domains are read out by a reproducing spot having a lower energy than the recording spot and a high resolution power along the track. A recording head has an optical system for irradiating the recording spot having the high energy to the magneto-optical recording medium and a magnetic head for applying a magnetic field having a polarity thereof switched in accordance with the information to be recorded, to an irradiation area of the recording spot, a reproducing head has an optical system for irradiating the reproducing spot having the low energy by a laser beam having a wavelength of no larger than 600 nm and a magneto-optical signal detector for detecting a displacement of a polarization plane of a reflected light of the reproducing spot to read out the recording domains. The magneto-optical recording medium is made of a recording film having a multi-layer structure of alternate lamination of metal layers and dielectric layers.
摘要翻译：将具有高能量的记录点照射到磁光记录介质上，记录与记录信息对应的极性的磁场，记录表示信息沿着轨迹的域。记录的区域由具有比记录点更低的能量的再现点和沿着轨道的高分辨率电力读出。记录头具有用于向磁光记录介质照射具有高能量的记录点的光学系统和用于根据要记录的信息将其极性切换的磁场施加到照射区域的记录点，再现头具有用于通过具有不大于600nm的波长的激光束照射具有低能量的再现点的光学系统和用于检测偏振面的位移的磁光信号检测器再现点的反射光读出记录区域。磁光记录介质由具有金属层和电介质层的交替叠层的多层结构的记录膜制成。

17. 发明授权

US07701113B2 Acoustic wave device and method for fabricating the same 有权
标题翻译：声波装置及其制造方法
公开(公告)号：US07701113B2
公开(公告)日：2010-04-20
申请号：US12191451
申请日：2008-08-14
申请人： Shunsuke Kido , Takeshi Nakao , Yasuharu Nakai , Kenji Nishiyama , Michio Kadota
发明人： Shunsuke Kido , Takeshi Nakao , Yasuharu Nakai , Kenji Nishiyama , Michio Kadota
IPC分类号： H03H9/25
CPC分类号： H03H9/02834 , H03H3/10 , Y10T29/42 , Y10T29/49005 , Y10T29/49155 , Y10T29/49165
摘要： A surface acoustic wave device includes a piezoelectric substrate, at least one interdigital transducer (IDT) electrode provided on the piezoelectric substrate, and an insulator layer to improve a temperature characteristic arranged so as to cover the IDT electrode. When a surface of the insulator layer is classified into a first surface region under which the IDT electrode is positioned and a second surface region under which no IDT electrode is positioned, the surface of the insulator layer in at least one portion of the second surface region is higher than the surface of the insulator layer from the piezoelectric substrate in at least one portion of the first surface region by at least about 0.001λ, where the wavelength of an acoustic wave is λ.
摘要翻译：表面声波装置包括压电基板，设置在压电基板上的至少一个叉指式换能器（IDT）电极和用于改善覆盖IDT电极的温度特性的绝缘体层。当将绝缘体层的表面划分为IDT电极所在的第一表面区域和没有IDT电极的第二表面区域时，在第二表面区域的至少一部分中的绝缘体层的表面在距离第一表面区域的至少一部分中的压电衬底的绝缘体层的表面高至少约0.001λ，其中声波的波长为λ。

18. 发明授权

US07569972B2 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US07569972B2
公开(公告)日：2009-08-04
申请号：US12234836
申请日：2008-09-22
申请人： Kenji Nishiyama , Takeshi Nakao , Michio Kadota
发明人： Kenji Nishiyama , Takeshi Nakao , Michio Kadota
IPC分类号： H01L41/08
CPC分类号： H03H9/02559
摘要： A surface acoustic wave device utilizing a Rayleigh wave includes a LiNbO3 substrate having Euler angles of (0°±5°, θ±5°, 0°±10°), an electrode which is disposed on the LiNbO3 substrate and which includes an IDT electrode primarily including Au, a first silicon oxide film disposed in a region other than the region in which the above-described electrode is disposed, the first silicon oxide film having a film thickness substantially equal to the thickness of the above-described electrode, and a second silicon oxide film arranged to cover the electrode and the first silicon oxide film, wherein the film thickness of the electrode is in the range of about 0.062λ to about 0.14λ, where λ represents the wavelength of a surface acoustic wave, and θ of the above-described Euler angles of (0°±5°, θ±5°, 0°±10°) is in the range satisfying the following Formula (1): θ=31.72−206.92×exp(−1×TAu/0.0138) Formula (1) where TAu is a value of Au electrode film thickness normalized with the wavelength λ.
摘要翻译：利用瑞利波的表面声波装置包括具有欧拉角（0°±5°，θ±5°，0°±10°）的LiNbO 3基板，设置在LiNbO 3基板上的电极，其包括IDT 主要包括Au的电极，设置在除了上述电极的区域以外的区域中的第一氧化硅膜，第一氧化硅膜的膜厚度基本上等于上述电极的厚度，以及布置成覆盖电极和第一氧化硅膜的第二氧化硅膜，其中电极的膜厚度在约0.062λ至约0.14λ的范围内，其中λ表示声表面波的波长，θ表示（0°±5°，θ±5°，0°±10°）的上述欧拉角在满足下列公式（1）的范围内：<？在线公式描述=“In- 线公式“end =”lead“？> theta = 31.72-206.92xexp（-1×TAu / 0.0138）式（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中TAu是用波长λ标准化的Au电极膜厚度的值。

19. 发明申请

US20080309192A1 ACOUSTIC WAVE RESONATOR 有权
标题翻译：声音波共振器
公开(公告)号：US20080309192A1
公开(公告)日：2008-12-18
申请号：US12203393
申请日：2008-09-03
申请人： Takeshi Nakao , Yasuharu Nakai , Michio Kadota
发明人： Takeshi Nakao , Yasuharu Nakai , Michio Kadota
IPC分类号： H03H9/25 , H03H9/15
CPC分类号： H03H9/02818 , H03H9/02992 , H03H9/1452
摘要： In an acoustic wave resonator, an IDT electrode is provided on a piezoelectric substrate. The IDT electrode is apodization-weighted such that a plurality of maximum values of cross widths are provided in acoustic wave propagation directions. Alternatively, in apodization weighting, weighting is applied such that at least one of a pair of envelopes located at outer side portions of the IDT electrode in directions substantially perpendicular to acoustic wave propagation directions includes a plurality of angled envelope portions angled from a central portion of the IDT electrode toward an outer side portion of the IDT electrode in a direction substantially perpendicular to the acoustic wave propagation directions.
摘要翻译：在声波谐振器中，在压电基板上设置有IDT电极。 IDT电极被变迹加权，使得在声波传播方向上提供多个最大交叉宽度值。或者，在变迹加权中，施加加权，使得位于IDT电极的外侧部分的大致垂直于声波传播方向的方向上的一对包络中的至少一个包括多个成角度的包络部分，该包络部分从 IDT电极朝向与声波传播方向大致正交的方向朝向IDT电极的外侧部分。

20. 发明授权

US07418772B2 Method for manufacturing a surface acoustic wave 有权
标题翻译：声表面波的制造方法
公开(公告)号：US07418772B2
公开(公告)日：2008-09-02
申请号：US11743793
申请日：2007-05-03
申请人： Kenji Nishiyama , Takeshi Nakao , Michio Kadota
发明人： Kenji Nishiyama , Takeshi Nakao , Michio Kadota
IPC分类号： H01L41/22 , H01L41/00
CPC分类号： H03H9/02929 , H03H3/10 , H03H9/02559 , H03H9/14538 , Y10T29/42 , Y10T29/49016 , Y10T29/4913 , Y10T29/49135 , Y10T29/49155
摘要： In a manufacturing method for a SAW apparatus a first insulating layer is formed on the entire surface of a piezoelectric LiTaO3 substrate. By using a resist pattern used for forming an IDT electrode, the first insulating layer in which the IDT electrode is to be formed is removed. An electrode film made of a metal having a density higher than Al or an alloy primarily including such a metal is disposed in the area in which the first insulating layer is removed so as to form the IDT electrode. The resist pattern remaining on the first insulating layer is removed. A second insulating layer is formed to cover the first insulating layer and the IDT electrode.
摘要翻译：在SAW器件的制造方法中，在压电LiTaO 3衬底的整个表面上形成第一绝缘层。通过使用用于形成IDT电极的抗蚀剂图案，去除其中将形成IDT电极的第一绝缘层。在除去第一绝缘层的区域中设置由密度高于Al的金属或主要包含金属的合金制成的电极膜，以形成IDT电极。去除残留在第一绝缘层上的抗蚀剂图案。形成第二绝缘层以覆盖第一绝缘层和IDT电极。

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