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1. 发明授权

US5070488A Optical integrated circuit and optical apparatus 失效
标题翻译：光学集成电路和光学设备
公开(公告)号：US5070488A
公开(公告)日：1991-12-03
申请号：US372639
申请日：1989-06-28
申请人： Atsuko Fukushima , Yasuo Hira , Hidemi Sato , Kazumi Kawamoto , Kenchi Ito , Masataka Shiba , Akira Arimoto
发明人： Atsuko Fukushima , Yasuo Hira , Hidemi Sato , Kazumi Kawamoto , Kenchi Ito , Masataka Shiba , Akira Arimoto
IPC分类号： G02B6/124 , G02B6/34 , G02B6/42 , G02F1/335 , G11B7/12 , G11B7/125 , G11B7/135
CPC分类号： G02B6/4246 , G02B6/124 , G02B6/34 , G02B6/42 , G02F1/335 , G11B7/1245 , G11B7/125 , G11B7/1384
摘要： An optical integrated circuit and an optical apparatus used in optical communication or an opto-electronics apparatus such as an optical disk recording apparatus, in which various kinds of aberration caused by wavelength variation of a light source when a semiconductor laser is used as the light source. An aberration correcting grating having such grating pitches as to nearly satisfy the Bragg condition preferably with respect to a certain wavelength of the semiconductor laser beam is used. As a result, lowering of incidence (entrance) and radiation (exit) coupling efficiencies of the grating coupler and aberration such as chromatic aberration can be prevented. Even if a multi-mode semiconductor laser is used as a light source, the characteristics of the optical integrated circuit and optical apparatus do not vary largely.
摘要翻译：在光通信中使用的光集成电路和光学装置或光电记录装置等光电装置，其中当使用半导体激光器作为光源时，由光源的波长变化引起的各种像差。使用具有这样的光栅间距几乎满足布拉格条件的像差校正光栅，优选地相对于半导体激光束的特定波长。结果，可以防止光栅耦合器的入射（入射）和辐射（出射）耦合效率的降低以及像差等像差。即使使用多模式半导体激光器作为光源，光集成电路和光学装置的特性也不会很大变化。

2. 发明授权

US5191624A Optical information storing apparatus and method for production of optical deflector 失效
标题翻译：光学信息存储装置及其制造方法
公开(公告)号：US5191624A
公开(公告)日：1993-03-02
申请号：US762935
申请日：1991-09-19
申请人： Kenchi Ito , Kazumi Kawamoto , Naoya Kanda , Yasuo Hira , Hidemi Sato , Atsuko Fukushima , Masataka Shiba , Akira Inagaki , Minoru Yoshida
发明人： Kenchi Ito , Kazumi Kawamoto , Naoya Kanda , Yasuo Hira , Hidemi Sato , Atsuko Fukushima , Masataka Shiba , Akira Inagaki , Minoru Yoshida
IPC分类号： G02B6/12 , G02F1/335 , G11B7/12
CPC分类号： G02B6/12004 , G02F1/335 , G11B7/1245
摘要： An optical waveguide is comprised of an optical substrate and an optical thin-film optical waveguide layer and formed such that ##EQU1## where .theta. is an output angle, n.sub.o1 is an ordinary refractive index of the optical substrate for an ordinary beam, n.sub.e1 is an extraordinary refractive index of the optical substrate for an extraordinary beam, n.sub.o2 is an ordinary refractive index of the optical thin-film optical waveguide layer for the ordinary beam and n.sub.e2 is an extraordinary refractive index of the optical thin-film optical waveguide layer for the extraordinary beam, and an electrode for generating a surface acoustic wave for diffracting light is formed on the optical waveguide to construct a collinear optical deflector. A method for production of the optical thin-film optical waveguide layer is exemplified wherein a target made of tantalic lilthium niobate or tantalic lithium niobate magnesium and an optical substrate made of lithium tantalate are prepared and an optical thin-film optical waveguide layer having a composition of tantalic lithium niobate or tantalic lithium niobate magnesium is formed on the optical substrate through an ion beam sputtering process into which oxygen can be introduced. Proton substitutes for part of an element constituting the optical thin-film optical waveguide layer.
摘要翻译：光波导包括光学基板和光学薄膜光波导层，并且被形成为使得θ是输出角度的θIMA1是普通光束的光学基板的普通折射率，ne1是用于非常光束的光学基板的非常折射率，no2是普通光束的光学薄膜光波导层的普通折射率，ne2是非常优异的光学薄膜光波导层的非常折射率并且在光波导上形成用于产生用于衍射光的表面声波的电极，以构成共线的光学偏转器。制备光学薄膜光波导层的方法被制备，其中制备由钽酸铌酸锂或钽酸铌镁制成的靶和由钽酸锂制成的光学衬底，并且制备具有组成的光学薄膜光波导层通过可以引入氧气的离子束溅射工艺在光学基板上形成铌酸锂或钽酸铌酸镁。质子代替构成光学薄膜光波导层的元件的一部分。

3. 发明授权

US5195070A Optical information processing apparatus and optical pickup therefor 失效
标题翻译：光信息处理装置及其光拾取装置
公开(公告)号：US5195070A
公开(公告)日：1993-03-16
申请号：US551794
申请日：1990-07-12
申请人： Masataka Shiba , Kazumi Kawamoto , Yasuo Hira , Akira Inagaki , Hidemi Sato , Kenchi Ito , Atsuko Fukushima , Ryuichi Funatsu
发明人： Masataka Shiba , Kazumi Kawamoto , Yasuo Hira , Akira Inagaki , Hidemi Sato , Kenchi Ito , Atsuko Fukushima , Ryuichi Funatsu
IPC分类号： G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/14
CPC分类号： G11B7/131 , G11B7/0903 , G11B7/1245 , G11B7/127 , G11B7/14
摘要： Using an optical pickup, recording/reproducing of information is performed by irradiating light beams to an optical recording medium to form light spots. The optical pickup includes means for generating plural light beams, an optical waveguide for guiding the plural light beams in a row into a flat space, and a light deflecting element for deflecting the light beams, which run in the optical waveguide, within a plane formed by a vector perpendicular to a plane of the optical waveguide and a directional vector of the light beams. The light deflecting element deflects the plural light spots, which are to be arranged in a row, in a direction perpendicular to the light spot row to perform micro seek.
摘要翻译：使用光学拾取器，通过将光束照射到光学记录介质以形成光斑来进行信息的记录/再现。光拾取器包括用于产生多个光束的装置，用于将多个光束一行地引导到平坦空间中的光波导和用于使在光波导中延伸的光束偏转在形成的平面内的光偏转元件通过垂直于光波导的平面的矢量和光束的方向矢量。光偏转元件在垂直于光点行的方向上偏转排列成一列的多个光点，以执行微寻迹。

4. 发明授权

US5274727A Second harmonic generator and method of fabrication thereof 失效
标题翻译：二次谐波发生器及其制造方法
公开(公告)号：US5274727A
公开(公告)日：1993-12-28
申请号：US879361
申请日：1992-05-07
申请人： Kenchi Ito , Kazumi Kawamoto , Hiroshi Momiji , Yasuo Hira , Hidemi Sato , Atsuko Fukushima
发明人： Kenchi Ito , Kazumi Kawamoto , Hiroshi Momiji , Yasuo Hira , Hidemi Sato , Atsuko Fukushima
IPC分类号： G02F1/377 , G02F1/37
CPC分类号： G02F1/3775
摘要： A second harmonic generator having a wide acceptance of bandwidth of temperature and/or a high conversion efficiency and a method of fabrication thereof are disclosed. An equidistant arrangement of pole-inverted grating having a rectangular sectional profile and the direction of spontaneous polarization opposite to that of a substrate within an optical waveguide has been known to produce a high conversion efficiency of the second harmonic generator A second harmonic generator having such a structure, which has so far been impossible to fabricate, is formed utilizing the liquid-phase epitaxial method and the ion-implanting method. Further, the substrate and the optical waveguide are formed of the same type of material. The temperature coefficient of the refractive index in the direction perpendicular to the substrate surface is rendered substantially equal to that of the optical waveguide, thereby improving the acceptance of bandwidth of temperature and making possible practical applications of the second harmonic generator.
摘要翻译：公开了具有对温度带宽的广泛接受和/或高转换效率的二次谐波发生器及其制造方法。已知具有矩形截面轮廓和与光波导内的衬底相反的自发极化方向的等反转光栅的等距布置产生二次谐波发生器A的高转换效率二次谐波发生器具有这样的使用液相外延法和离子注入法形成迄今为止不可能制造的结构。此外，基板和光波导由相同类型的材料形成。使与基板表面垂直的方向的折射率的温度系数基本上等于光波导的温度系数，从而提高了温度带宽的接受性，并且可以实现二次谐波发生器的实际应用。

5. 发明授权

US5125740A Method and apparatus for measuring optical constants of a thin film as well as method and apparatus for fabricating a thin film utilizing same 失效
标题翻译：用于测量薄膜的光学常数的方法和装置以及利用其制造薄膜的方法和装置
公开(公告)号：US5125740A
公开(公告)日：1992-06-30
申请号：US480649
申请日：1990-02-15
申请人： Hidemi Sato , Yasuo Hira , Atsuko Fukushima , Hiroshi Asao , Kazumi Kawamoto , Kenchi Ito , Ryuichi Funatsu
发明人： Hidemi Sato , Yasuo Hira , Atsuko Fukushima , Hiroshi Asao , Kazumi Kawamoto , Kenchi Ito , Ryuichi Funatsu
IPC分类号： G01N21/41 , G01N21/43 , G01N21/84 , G02B6/13 , G02B6/132 , H01S5/00
CPC分类号： G01N21/43 , G01N21/8422 , G01N2021/4126 , G01N21/412 , G01N21/552
摘要： A sample is located so as to be close to a prism and a light beam coming from a light source is projected to the prism while varying the incident angle to the prism as a parameter. The incident light beam to the prism is propagated therein and light emerging from the bottom surface of the prism, which is in contact with the sample, is projected to the sample. At the same time the intensity of light reflected by the bottom surface of the prism is measured. Optical constants such as the refractive index, the film thickness, the distribution of the refractive index, etc. are obtained by calculation, starting from measured values thus obtained.
摘要翻译：将样品定位成靠近棱镜，并且来自光源的光束作为参数改变与棱镜的入射角度而投射到棱镜。到棱镜的入射光束在其中传播，并且从与样品接触的棱镜的底表面出射的光被投射到样品。同时测量由棱镜底面反射的光的强度。光学常数如折射率，膜厚度，折射率分布等通过计算得到，从所获得的测量值开始。

6. 发明授权

US4906063A Wave guide type optical device and method of fabricating the same 失效
标题翻译：波导型光学器件及其制造方法
公开(公告)号：US4906063A
公开(公告)日：1990-03-06
申请号：US150204
申请日：1988-01-29
申请人： Hidemi Sato , Yasuo Hira , Shigeru Sasaki , Atsuko Fukusima , Kazumi Kawamoto
发明人： Hidemi Sato , Yasuo Hira , Shigeru Sasaki , Atsuko Fukusima , Kazumi Kawamoto
IPC分类号： G02B6/12 , G02B6/122
CPC分类号： G02B6/122
摘要： This invention relates to a wave guide type optical device as an integrated optical device having formed thereon lens and grating having particularly high efficiency and a fabrication method thereof. The present invention is characterized in that a wave guide type optical device having high efficiency and high stability can be fabricated efficiently by forming a buffer layer made of a dielectric substance on a optical wave guide formed near the surface of a substrate having an acousto-optic effect, then forming a light wave control loading layer and finely working the loading layer and the buffer layer to a predetermined shape of a desired optical device.
摘要翻译：本发明涉及一种作为集成光学元件的波导型光学器件，其特征在于，其具有特别高的效率的透镜和光栅及其制造方法。本发明的特征在于，可以通过在具有声光的基板的表面附近的光波导上形成由电介质材料制成的缓冲层来高效率地制造具有高效率和高稳定性的波导型光学器件然后形成光波控制加载层，并将加载层和缓冲层精细加工成所需光学装置的预定形状。

7. 发明授权

US06958790B2 Liquid crystal display apparatus 失效
标题翻译：液晶显示装置
公开(公告)号：US06958790B2
公开(公告)日：2005-10-25
申请号：US10954261
申请日：2004-10-01
申请人： Hitoshi Taniguchi , Yasuo Hira , Yuji Mori
发明人： Hitoshi Taniguchi , Yasuo Hira , Yuji Mori
IPC分类号： G02B6/00 , F21V8/00 , G02F1/1335 , G02F1/13357
CPC分类号： G02B6/0036 , G02B6/0061 , G02F1/133615
摘要： A liquid crystal display apparatus having a light conductor plate, a liquid crystal cell arranged on a front surface side of the light conductor plate, and a light source arranged on a side surface of the light conductor plate so as to light the liquid crystal cell from a back surface side thereof. The light conductor plate has an incident surface for a light from the light source, a light emitting surface for emitting the input light to the liquid crystal cell, and a plurality of dots constituted by small projecting portions or small recess portions for changing a moving direction of the light from the incidence surface toward a direction of the light emitting surface. The dots are formed in at least one of the light emitting surface and a surface of the light conductor plate opposite to the light emitting surface and have a particular configuration.
摘要翻译：一种具有导光板的液晶显示装置，配置在该导光板的前表面侧的液晶单元，以及配置在该导光板的侧面的光源，以使该液晶元件从其背面侧。光导体板具有用于来自光源的光的入射面，用于将输入光发射到液晶单元的发光面，以及由小突起部或小凹部构成的多个点，用于改变移动方向从入射面朝向发光面的方向的光。这些点形成在光发射表面和与发光表面相对的光导体板的表面中的至少一个中，并且具有特定的构造。

8. 发明授权

US06661552B2 Rear projection apparatus 失效
公开(公告)号：US06661552B2
公开(公告)日：2003-12-09
申请号：US10234090
申请日：2002-09-05
申请人： Yasuo Hira
发明人： Yasuo Hira
IPC分类号： G02F100
CPC分类号： H04N5/66 , G03B21/625 , H04N5/7441
摘要： A rear projection apparatus having a projector containing a light source and a liquid crystal cell, a mirror for reflecting a light from the projector, and a screen for projecting the light reflected by the mirror. The screen is being composed of an optical film having an optical element capable of forming a spatial distribution of light transmittance, a light shield layer and a light diffusion layer. The light shield layer is positioned between the optical element and the light diffusion layer and is composed of a compound which changes light transmittance depending on irradiation of an energy beam. The light transmittance passing the light shield layer is modulated spatially depending on a dose of the energy beam.

9. 发明授权

US06504680B2 Magnetic head and magnetic head manufacturing method 失效
公开(公告)号：US06504680B2
公开(公告)日：2003-01-07
申请号：US09927392
申请日：2001-08-13
申请人： Atsuko Okawa , Yasuo Hira , Hirotaka Imayama , Masayasu Fujisawa , Saburou Suzuki , Eisei Togawa , Noriyuki Saiki , Nobuo Suzuki , Hiroshi Agari , Kiyoshi Akamatsu , Hiromu Chiba
发明人： Atsuko Okawa , Yasuo Hira , Hirotaka Imayama , Masayasu Fujisawa , Saburou Suzuki , Eisei Togawa , Noriyuki Saiki , Nobuo Suzuki , Hiroshi Agari , Kiyoshi Akamatsu , Hiromu Chiba
IPC分类号： G11B560
CPC分类号： G11B5/6005 , Y10T29/49041
摘要： A method of manufacturing a magnetic head slider for a magnetic head and the magnetic slider wherein the slider has non-linear rails formed in a floating surface thereof by processing including one of reactive ion etching, sputter etching and an ion milling, and side walls of the non-linear rails are polished after formation of the non-linear rails by the processing.

10. 发明授权

US06278582B1 Magnetic head and magnetic head manufacturing method 有权
标题翻译：磁头和磁头制造方法
公开(公告)号：US06278582B1
公开(公告)日：2001-08-21
申请号：US09469180
申请日：1999-12-21
申请人： Atsuko Okawa , Yasuo Hira , Hirotaka Imayama , Masayasu Fujisawa , Saburou Suzuki , Eisei Togawa , Noriyuki Saiki , Nobuo Suzuki , Hiroshi Agari , Kiyoshi Akamatsu , Hiromu Chiba
发明人： Atsuko Okawa , Yasuo Hira , Hirotaka Imayama , Masayasu Fujisawa , Saburou Suzuki , Eisei Togawa , Noriyuki Saiki , Nobuo Suzuki , Hiroshi Agari , Kiyoshi Akamatsu , Hiromu Chiba
IPC分类号： G11B560
CPC分类号： G11B5/6005 , Y10T29/49041
摘要： For removing re-deposited particulates produced during an etching process of a magnetic head slider and forming a minute chamfered portion, a polishing process is carried out by using polishing cloth such as non-woven polyester fabric after having formed rails of non-linear shape on a floating surface by the etching process. Thus, the re-deposited particulates produced during the etching process are removed, whereby the reliability of the floating characteristic of magnetic head is improved.
摘要翻译：为了除去在磁头滑块的蚀刻过程中产生的重新沉积的微粒并形成微小的倒角部分，通过使用诸如无纺聚酯织物的抛光布，在形成非线性形状的轨道之后，进行抛光处理通过蚀刻工艺浮动表面。因此，去除了在蚀刻工艺期间产生的再沉积的微粒，从而提高了磁头的浮动特性的可靠性。

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