公开(公告)号：US5633846A

公开(公告)日：1997-05-27

申请号：US595218

申请日：1996-02-01

申请人： Atsushi Okuyama ,  Takashi Yoshida ,  Fujio Tajima ,  Masamichi Ito ,  Yasuhiro Mii ,  Masato Soma ,  Hidehito Yamada

发明人： Atsushi Okuyama ,  Takashi Yoshida ,  Fujio Tajima ,  Masamichi Ito ,  Yasuhiro Mii ,  Masato Soma ,  Hidehito Yamada

IPC分类号： G11B7/09

CPC分类号： G11B7/0945 ,  G11B7/0941

摘要： A positioning system of an optical disc apparatus includes focus error detecting part for detecting a focus error signal as a focal shift of a light spot related to an information recording surface of an optical disc, light spot moving part in the direction intersecting substantially perpendicularly to the optical disc surface, first digital arithmetic part for receiving the focus error signal and outputting a first control signal, second digital arithmetic part for receiving the focus error signal and a specified third control signal, performing arithmetic operations of a disturbance observer and outputting a second control signal, adding circuit for adding the first control signal and the second control signal and outputting the third control signal, drive circuit for driving the light spot moving part in a direction intersecting perpendicularly to the disc surface by the third control signal, wherein the first and the second digital arithmetic circuit perform arithmetic operations at different sampling periods.

摘要翻译： 光盘装置的定位系统包括：聚焦误差检测部分，用于检测聚焦误差信号，作为与光盘的信息记录表面相关的光点的焦点偏移;光点移动部分，在与 光盘表面，用于接收聚焦误差信号并输出​​第一控制信号的第一数字运算部分，用于接收聚焦误差信号的第二数字运算部分和指定的第三控制信号，执行干扰观察者的算术运算，并输出第二控制 信号添加电路，用于添加第一控制信号和第二控制信号，并输出第三控制信号;驱动电路，用于通过第三控制信号沿垂直于盘表面的方向驱动光点运动部分，其中第一和 第二数字运算电路执行算术运算a t不同的采样周期。

公开(公告)号：US06785204B1

公开(公告)日：2004-08-31

申请号：US09644571

申请日：2000-08-24

申请人： Atsushi Okuyama ,  Shinya Imura ,  Masato Soma ,  Norihisa Yanagihara

发明人： Atsushi Okuyama ,  Shinya Imura ,  Masato Soma ,  Norihisa Yanagihara

IPC分类号： G11B700

CPC分类号： G11B7/0946

摘要： An actuator control device is provided for performing some modifications such as making the output of a disturbance observer zero for quickly restoring the proper tracking control if the out-of-track state takes place and if the outside force exceeding the maximum force generated by an actuator is applied to the device itself. In the actuator control device, a disturbance observer estimates disturbance added to the actuator. The second control signal corresponding to the estimated disturbance is added to the first control signal. The added signal is made to be a third control signal. Further, the second control signal is stored in a storage unit. The stored value is further added to the third control signal as the fifth control signal. By performing some modifications such as making the second control signal zero according to the abnormal state, this arrangement makes it possible to quickly restore the proper tracking control even if the out-of-track state takes place.

摘要翻译： 提供致动器控制装置，用于执行一些修改，例如使扰动观测器的输出为零，以便在发生超出轨迹状态时快速恢复适当的跟踪控制，并且如果外力超过致动器产生的最大力 被应用于设备本身。 在致动器控制装置中，扰动观察器估计加到致动器的干扰。 对应于估计的扰动的第二控制信号被加到第一控制信号。 添加的信号被做成第三控制信号。 此外，第二控制信号被存储在存储单元中。 作为第五控制信号，将存储的值进一步添加到第三控制信号。 通过进行某些修改，例如使第二控制信号根据异常状态为零，这种布置使得即使发生磁道外状态，也可以快速恢复适当的跟踪控制。

公开(公告)号：US20110014793A1

公开(公告)日：2011-01-20

申请号：US12924288

申请日：2010-09-23

申请人： Masafumi Muramatsu ,  Kazumi Asada ,  Yukino Hagino ,  Atsushi Okuyama ,  Takahito Nakajima ,  Kazuhiko Takase ,  Yoshihiro Uozumi ,  Tsuyoshi Matsumura ,  Takuo Ohwada ,  Norio Ishikawa

发明人： Masafumi Muramatsu ,  Kazumi Asada ,  Yukino Hagino ,  Atsushi Okuyama ,  Takahito Nakajima ,  Kazuhiko Takase ,  Yoshihiro Uozumi ,  Tsuyoshi Matsumura ,  Takuo Ohwada ,  Norio Ishikawa

IPC分类号： H01L21/768 ,  C23G1/02

CPC分类号： C11D11/0047 ,  C11D3/042 ,  C11D3/046 ,  C11D3/2075 ,  C11D3/2082 ,  C11D3/2086 ,  C11D3/245 ,  C11D7/08 ,  C11D7/10 ,  C11D7/265 ,  C11D7/32 ,  C23G1/24 ,  H01L21/02063 ,  H01L21/76811

摘要： A post-dry etching cleaning liquid composition for cleaning a substrate after dry etching is provided, the cleaning liquid composition containing at least one type of fluorine compound, glyoxylic acid, at least one type of organic acid salt, and water. With regard to the fluorine compound, ammonium fluoride may be used. With regard to the organic acid salt, at least one of ammonium oxalate, ammonium tartarate, ammonium citrate, and ammonium acetate may be used.

摘要翻译： 提供了干蚀刻后的清洗基板的干燥后蚀刻清洗液组合物，含有至少一种氟化合物，乙醛酸，至少一种有机酸盐和水的清洗液组合物。 关于氟化合物，可以使用氟化铵。 关于有机酸盐，可以使用草酸铵，酒石酸铵，柠檬酸铵和乙酸铵中的至少一种。

公开(公告)号：US20070211371A1

公开(公告)日：2007-09-13

申请号：US11709979

申请日：2007-02-22

申请人： Takenori Atsumi ,  Atsushi Okuyama

发明人： Takenori Atsumi ,  Atsushi Okuyama

IPC分类号： G11B5/596

CPC分类号： G11B5/5547 ,  G11B5/5582

摘要： Embodiments in accordance with the present invention relate to a positioning control system of a magnetic disk drive. Even if there is no phase correlation in a specific vibration component before and after a seek operation of a magnetic head, a resonance filter in accordance with an embodiment of the present invention follows the vibration at the frequency at high speed. A frequency showing a periodic disturbance is selected as a target frequency Ft[Hz]. A resonance filter showing a peak gain at a frequency Ft is designed. For an input to the resonance filter, a time-variable gain K(t) is used that varies depending on the time lapsed after the completion of a seek operation. This time-variable gain K(t) takes a value larger than 1 when the resonance filter starts operating, and after the lapse of a fixed length of time, the value becomes 1 by degrees.

摘要翻译： 根据本发明的实施例涉及一种磁盘驱动器的定位控制系统。 即使在磁头搜索操作之前和之后的特定振动分量中没有相位相关，根据本发明的实施例的谐振滤波器跟随高频频率的振动。 选择显示周期性干扰的频率作为目标频率Ft [Hz]。 设计了表示频率Ft的峰值增益的共振滤波器。 对于谐振滤波器的输入，使用根据寻道操作完成之后经过的时间而变化的时变增益K（t）。 当谐振滤波器开始工作时，该时变增益K（t）取大于1的值，并且在经过固定时间长度之后，该值变为1度。

公开(公告)号：US20070071043A1

公开(公告)日：2007-03-29

申请号：US11531148

申请日：2006-09-12

申请人： Yu Yamauchi ,  Atsushi Okuyama ,  Reona Ushigome

发明人： Yu Yamauchi ,  Atsushi Okuyama ,  Reona Ushigome

IPC分类号： H01S3/10

CPC分类号： G02B27/283 ,  G02B5/3041 ,  G02B27/288 ,  H04N9/3167

摘要： A wavelength-selective polarization conversion element is disclosed, which is capable of reducing the number of optical elements in an optical system and simplifying the configuration thereof. The polarization conversion element comprises a beam splitting film which splits light by transmission and reflection and has a characteristic in which at least its transmittance for light with a first polarization direction changes between a transmittance higher than 50% and a transmittance lower than 50% depending on wavelength regions, and a phase plate which converts the polarization direction of light from the beam splitting film between the first polarization direction and a second polarization direction. The polarization conversion element converts light of two of first, second and third wavelength regions into light with one of the first and second polarization directions and converts light of the remaining wavelength region into light with the other polarization direction.

摘要翻译： 公开了一种波长选择性偏振转换元件，其能够减少光学系统中的光学元件的数量并简化其配置。 偏振转换元件包括通过透射和反射分离光的分束膜，并且具有这样的特性，其中至少其对于具有第一偏振方向的光的透射率在高于50％的透射率和低于50％的透射率之间变化，这取决于 以及在第一偏振方向和第二偏振方向之间转换来自分束膜的光的偏振方向的相位板。 偏振转换元件将第一，第二和第三波长区域中的两个的光转换为具有第一和第二偏振方向中的一个的光，并将剩余波长区域的光转换为具有另一个偏振方向的光。

公开(公告)号：US07137704B2

公开(公告)日：2006-11-21

申请号：US10807814

申请日：2004-03-23

申请人： Atsushi Okuyama ,  Masayuki Abe

发明人： Atsushi Okuyama ,  Masayuki Abe

IPC分类号： G03B21/14 ,  G02F1/13363

CPC分类号： H04N9/3105 ,  H04N9/3167

摘要： A color splitting/combining optical system includes a first optical member for color splitting and a second optical member which has a polarization splitting surface for color splitting/combining, a third optical member for color combining a first color-selective wave plates and a second color-selective wave plate. The first and second color-selective wave plates convert the polarization direction of light in a first and second wavelength regions respectively by 90 degrees. The optical system satisfies λ1≠λ2, where λ1 and λ2 represent wavelengths in which the ratio of the light component having the polarization direction converted by 90 degrees by the first and second color-selective wave plates respectively become substantially 50%.

摘要翻译： 分色/组合光学系统包括用于分色的第一光学构件和具有用于分色/组合的偏振分离表面的第二光学构件，用于将第一颜色选择波片和第二颜色组合的第三光学构件 选择波片。 第一和第二颜色选择波片将第一和第二波长区域中的光的偏振方向分别转换90度。 光学系统满足λ1λ2，其中λ1和λ2表示第一和第二色选波片转换90度的偏振方向的光分量的比率分别变为50％的波长。

公开(公告)号：US20060066813A1

公开(公告)日：2006-03-30

申请号：US11228605

申请日：2005-09-16

申请人： Atsushi Okuyama ,  Makoto Takahashi

发明人： Atsushi Okuyama ,  Makoto Takahashi

IPC分类号： G03B21/00

CPC分类号： H04N9/3105 ,  H04N9/315

摘要： An image projection apparatus includes a first reflection type liquid crystal display device for modulating and reflecting red light, a second reflection type liquid crystal display device for modulating and reflecting green light, a third reflection type liquid crystal display device for modulating and reflecting blue light, the image projection apparatus projecting colored light made of the red, green and blue lights from the first to third reflection type liquid crystal display devices, a first ¼ wave plate provided on an optical path of the red light, a second ¼ wave plate provided on an optical path of the green light, and a third ¼ wave plate provided on an optical path of the blue light, a direction of a fast axis of the third ¼ wave plate being different from a direction that minimizes leakage light of the blue light.

摘要翻译： 图像投影装置包括用于调制和反射红光的第一反射型液晶显示装置，用于调制和反射绿光的第二反射型液晶显示装置，用于调制和反射蓝光的第三反射型液晶显示装置， 所述图像投影装置投射由所述第一至第三反射型液晶显示装置的红色，绿色和蓝色光制成的彩色光，设置在所述红色光的光路上的第一1/4波片，设置在所述红色光的光路上的第二1/4波片 绿光的光路和设置在蓝光的光路上的第三1/4波片，第三1/4波片的快轴方向与蓝光的漏光最小化的方向不同。

公开(公告)号：US06783244B1

公开(公告)日：2004-08-31

申请号：US09659686

申请日：2000-09-11

申请人： Atsushi Okuyama ,  Hiroyuki Kodama

发明人： Atsushi Okuyama ,  Hiroyuki Kodama

IPC分类号： G03B2100

CPC分类号： H04N9/3182

摘要： A display apparatus of the type which forms a color image by modulating a plurality of lights different from each other in color by one or more display elements, includes a device for changing the color purity of at least one light by inserting or extracting a wavelength selection element into or out of the optical path of at least one of the plurality of lights, or changing the attitude of the wavelength selection element, and a device for supplying information as to whether the wavelength selection element is in the optical path of the at least one color light or information on the attitude of the wavelength selection element in the optical path of the at least one color light.

公开(公告)号：US06707633B2

公开(公告)日：2004-03-16

申请号：US09791726

申请日：2001-02-26

申请人： Atsushi Okuyama ,  Masaki Odai ,  Hidehiko Numasato ,  Shigeo Nakamura ,  Masahito Kobayashi

发明人： Atsushi Okuyama ,  Masaki Odai ,  Hidehiko Numasato ,  Shigeo Nakamura ,  Masahito Kobayashi

IPC分类号： G11B2102

CPC分类号： G11B5/5552

摘要： A magnetic disk device comprises at least a disk having information, at least a head for reading or writing information from or into the disk, at least a micro actuator for supporting the head and positioning the head, a coarse actuator for carrying the micro actuator and positioning the head, a controller for controlling the micro actuator and the coarse actuator based on the servo information read by the head, and a host controller for determining that information is to be read. In the case where the host controller determines that the operation is in a wait mode, the positioning operation of the micro actuator is stopped.

摘要翻译： 磁盘装置至少包括具有信息的盘，至少一个用于读取或写入盘的信息的头，至少一个用于支撑头部和定位头部的微致动器，用于承载微致动器的粗致动器和 定位头部，用于根据由头部读取的伺服信息来控制微型执行器和粗略致动器的控制器，以及用于确定要读取该信息的主机控制器。 在主机控制器确定操作处于等待模式的情况下，微型致动器的定位操作停止。

公开(公告)号：US06611381B2

公开(公告)日：2003-08-26

申请号：US09748678

申请日：2000-12-22

申请人： Hiroyuki Kodama ,  Atsushi Okuyama

发明人： Hiroyuki Kodama ,  Atsushi Okuyama

IPC分类号： G02B2710

CPC分类号： H04N9/3105 ,  H04N9/3144

摘要： This invention provides a liquid crystal display apparatus which can reduce thermal load on a polarizing plate or display element, decrease the number of components necessary for reducing the thermal load on the polarizing plate, and reduce cost by decreasing the power consumption of a cooling fan. The display apparatus has a unit for changing the color purity of at least one of a puerility of colors. A polarizing plate in the optical path of light whose color purity is changed by the color purity changing unit is formed from a heat-transfer transparent substrate having a thermal conductivity of 1.2 W/(m·K) or more.

摘要翻译： 本发明提供一种能够降低偏光板或显示元件的热负荷的液晶显示装置，减少偏振板上的热负荷减少所需的部件数量，并且通过降低冷却风扇的功耗来降低成本。 显示装置具有用于改变色彩的至少一种的颜色纯度的单元。 通过色纯度变化单元改变色纯度的光的光路中的偏光板由导热率为1.2W /（m.K）以上的传热透明基板形成。