公开(公告)号：USRE39463E1

公开(公告)日：2007-01-09

申请号：US11200543

申请日：2005-08-10

申请人： Seiichi Ohsawa ,  Takanori Maeda

发明人： Seiichi Ohsawa ,  Takanori Maeda

IPC分类号： B32B3/02

CPC分类号： G11B7/00745 ,  G11B7/08511 ,  G11B7/0945 ,  G11B7/13925 ,  G11B7/24038 ,  G11B2007/0006 ,  G11B2007/0013 ,  Y10T428/21

摘要： A multi-layer-information-recording medium is applied to an information recording and reproducing apparatus capable of recording or reproducing information on and from either of a single-layer-information-recording medium having a single recording layer on one side, and a multi-layer-information-recording layer having a plurality of recording layers layered on a spacer layer on one side as a change in reflectivity by irradiating a light beam. The multi-layer-information-recording medium is compatible in terms of at least reproducing and recording with a single-layer-information-recording medium having a cover layer having a predetermined refractive index “n” and a thickness “t” disposed on a recording layer on a light incident side surface. The multi-layer-information-recording medium includes a deepest recording layer deepest from the light incident side surface. The deepest recording layer is formed in an optical distance d1 from the light incident side surface satisfying an equation d1−nt. The multi-layer-information-recording medium also includes at least one shallow recording layer formed at an optical distance d2 satisfying an inequality d2

摘要翻译： 多层信息记录介质被应用于能够在一侧具有单个记录层的单层信息记录介质中的任何一个上记录或再现信息的信息记录和再现设备，以及多层信息记录介质 层信息记录层，其具有通过照射光束而在一侧的间隔层上层叠的多个记录层作为反射率的变化。 多层信息记录介质至少与具有预定折射率“n”的覆盖层的单层信息记录介质和设置在该层的信息记录介质上的厚度“t”进行再现和记录兼容 记录层在光入射侧表面上。 多层信息记录介质包括从光入射侧表面最深的最深的记录层。 最深的记录层形成为从光入射侧表面满足等式d1-nt的光学距离d1。 多层信息记录介质还包括至少一个形成在满足从光入射侧表面的不等于d2

公开(公告)号：US07112287B2

公开(公告)日：2006-09-26

申请号：US10491888

申请日：2003-07-23

申请人： Hiroshi Yagi ,  Takanori Maeda ,  Yoshinori Oota ,  Yasuhiro Uchida

发明人： Hiroshi Yagi ,  Takanori Maeda ,  Yoshinori Oota ,  Yasuhiro Uchida

IPC分类号： B31D3/00

CPC分类号： B01D67/0069 ,  B01D53/228 ,  B01D67/006 ,  B01D67/0072 ,  B01D69/10 ,  B01D71/022 ,  B01D2325/021 ,  C01B3/505 ,  C01B2203/0405 ,  C01B2203/041 ,  C01B2203/047 ,  C23F1/02 ,  C23F1/28 ,  C23F1/34 ,  C23F1/44 ,  C25D1/08 ,  C25D1/10 ,  C25D5/022 ,  H01M8/0618 ,  H01M8/0662 ,  Y10T428/12201 ,  Y10T428/12361 ,  Y10T428/12417 ,  Y10T428/12479 ,  Y10T428/12951 ,  Y10T428/24273 ,  Y10T428/249953

摘要： In a through hole closing process, a metal plate is attached to one surface of a conductive base member having a plurality of through holes by the use of a magnet, in a copper plating process, a copper plating layer is formed on the conductive base member and the metal plate exposed within the through holes, from the side of the conductive base member where the metal plate is not attached, thereby to fill up the through holes, in a film forming process, a Pd alloy film is formed by plating on the surface of the conductive base member after removal of the metal plate, and in a removal process, the copper plating layer is removed by selective etching, thereby to produce a hydrogen production filter that is used in a reformer of a fuel cell so as to be capable of stably producing high purity hydrogen gas.

摘要翻译： 在通孔闭合处理中，通过使用磁体将金属板附着到具有多个通孔的导电性基材的一个表面上，在镀铜工序中，在导电性基材上形成有镀铜层 并且金属板从通孔的暴露于未安装金属板的导电性基材的一侧露出，从而填充通孔，在成膜工艺中，通过在 在除去金属板之后的导电性基材的表面，在去除工序中，通过选择性蚀刻去除铜镀层，由此制造用于燃料电池的重整器的氢制造用过滤器， 能够稳定地生产高纯氢气。

公开(公告)号：US06992953B2

公开(公告)日：2006-01-31

申请号：US09813898

申请日：2001-03-22

申请人： Mitsuru Sato ,  Junichi Furukawa ,  Kazuo Takahashi ,  Takanori Maeda ,  Hiroshi Nishiwaki ,  Takayuki Nomoto ,  Ikuya Kikuchi

发明人： Mitsuru Sato ,  Junichi Furukawa ,  Kazuo Takahashi ,  Takanori Maeda ,  Hiroshi Nishiwaki ,  Takayuki Nomoto ,  Ikuya Kikuchi

IPC分类号： G11B7/095

CPC分类号： G11B7/1353 ,  G11B7/0901 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/1381

摘要： A tracking servo apparatus in which reflection light obtained when a laser beam is irradiated onto a recording surface of an optical disc is photoelectrically converted, thereby obtaining a photoelectric conversion signal, a tracking error signal showing a deviation amount of an irradiating position of said laser beam for a track in a disc radial direction on the recording surface is generated by the photoelectric conversion signal, a spherical aberration occurring in an optical system is detected, a level of the tracking error signal is corrected on the basis of the detection result, and the irradiating position of the laser beam is moved in the disc radial direction in accordance with the level-corrected tracking error signal.

摘要翻译： 一种跟踪伺服装置，其中将激光束照射到光盘的记录表面上时获得的反射光被光电转换，从而获得光电转换信号，表示所述激光束的照射位置的偏差量的跟踪误差信号 通过光电转换信号产生在记录表面上的磁盘径向方向上的轨迹，检测出在光学系统中发生的球面像差，根据检测结果校正跟踪误差信号的电平，并且 根据电平校正的跟踪误差信号，激光束的照射位置沿盘径向移动。

公开(公告)号：US06970409B2

公开(公告)日：2005-11-29

申请号：US10068024

申请日：2002-02-08

申请人： Yoshitsugu Araki ,  Takanori Maeda

发明人： Yoshitsugu Araki ,  Takanori Maeda

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0901 ,  G11B7/0045 ,  G11B2007/0013

摘要： An information recording apparatus capable of detecting an accurate tracking error even if a reflectance or a transmittance of respective information recording layers varies when information is recorded onto a multilayer optical information recording medium having a plurality of information recording layers, wherein the apparatus comprises a detecting device for detecting a position of a boundary portion between a recorded area where the information has already been recorded and an unrecorded area in the information recording layer; an inhibiting device for inhibiting recording the information onto an area in one information recording layer in a case where the boundary portion in an information recording layer may affect a tracking servo for recording the information onto said one information recording layer.

摘要翻译： 即使当信息被记录在具有多个信息记录层的多层光学信息记录介质上时，即使当各个信息记录层的反射率或透射率变化时，能够检测精确跟踪误差的信息记录装置，其中该装置包括检测装置 用于检测已经记录了信息的记录区域与信息记录层中的未记录区域之间的边界部分的位置; 在信息记录层的边界部分可能会影响将信息记录到所述一个信息记录层上的跟踪伺服器的情况下，禁止在一个信息记录层中的区域上记录信息的禁止装置。

公开(公告)号：US06885616B2

公开(公告)日：2005-04-26

申请号：US09765306

申请日：2001-01-22

申请人： Ikuya Kikuchi ,  Takanori Maeda ,  Mitsuru Sato

发明人： Ikuya Kikuchi ,  Takanori Maeda ,  Mitsuru Sato

IPC分类号： G11B7/00 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/0908 ,  G11B7/0943 ,  G11B7/1369 ,  G11B7/1378 ,  G11B7/1381 ,  G11B7/13925 ,  G11B2007/0006

摘要： A phase device for providing a phase difference between an inner radius portion and an outer radius portion of a light beam which is emitted from a light source is provided in an optical path between the light source of an optical pickup apparatus and an objective lens. The light beam to which the phase difference has been provided is converged by the objective lens and irradiated to an optical disc. An interference of an inner radius portion and an outer radius portion of the returning light beam caused when the light beam is diffracted by the optical disc with ±1 primary diffracted light caused by the diffraction is suppressed. Therefore, an intensity fluctuation of the returning light beam caused by the interference is suppressed. A spherical aberration error showing a thickness error of the optical disc and a focusing error having a high linearity can be detected with high precision on the basis of the returning light. A numerical aperture of the objective lens, consequently, can be increased, high density information recording and information reproduction can be performed, and further, an optical pickup apparatus and an information recording and/or reproducing apparatus each having compatibility are realized.

摘要翻译： 在光拾取装置的光源和物镜之间的光路中设置用于提供从光源发射的光束的内半径部分和外半径部分之间的相位差的相位装置。 已经提供了相位差的光束被物镜会聚并照射到光盘。 抑制由衍射引起的±1次衍射光使光束被光盘衍射时引起的返回光束的内径部和外径部的​​干涉。 因此，抑制由干涉引起的返回光束的强度波动。 可以基于返回光以高精度检测出表示光盘的厚度误差的球面像差误差和高线性度的聚焦误差。 因此，可以增加物镜的数值孔径，可以执行高密度信息记录和信息再现，并且还实现了具有兼容性的光学拾取装置和信息记录和/或再现装置。

公开(公告)号：US06714495B2

公开(公告)日：2004-03-30

申请号：US09738950

申请日：2000-12-18

申请人： Takanori Maeda

发明人： Takanori Maeda

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/005 ,  G11B7/126 ,  G11B7/1353

摘要： A pickup device and an information recording/reproducing apparatus for reproducing information in which crosstalks have been suppressed without causing an erasure or the like of the information which has already been recorded on an information recording medium. The apparatus has a light source 1 for emitting first and second lights whose polarizing directions cross perpendicularly. The first and second lights are transmitted through a grating for merely transmitting the first light and diffracting the second light at a predetermined diffraction efficiency and those lights are converged by an objective lens, thereby forming a laser beam and irradiating it onto an optical disc. At the time of the recording of information, the second light is set to a light-off mode or a low power state and the recording of information is performed by the laser beam caused by the first light. At the time of the reproduction of information, both of the first and second lights are emitted, the reproduction of information is performed by the laser beam caused by the first light, and the laser beam caused on the basis of the diffraction light caused due to the diffraction of the second light is irradiated to the adjacent tracks. Consequently, at the time of the reproduction of information the laser beam of the low power is irradiated onto the adjacent tracks and the information to remove crosstalk components can be obtained without causing erasure or the like of the information.

摘要翻译： 用于再现已经抑制了串扰的信息的拾取装置和信息记录/再现装置，而不会导致已经记录在信息记录介质上的信息的擦除等。 该装置具有用于发射偏振方向垂直交叉的第一和第二光的光源1。 第一和第二光通过光栅透射，仅用于传输第一光并以预定衍射效率衍射第二光，并且这些光被物镜会聚，从而形成激光束并将其照射到光盘上。 在记录信息时，第二个光被设置为熄灭模式或低功率状态，并且由第一光引起的激光束执行信息的记录。 在再现信息时，第一和第二光都发射，由第一光引起的激光束进行信息的再现，并且基于由于第一光引起的衍射光引起的激光束 将第二光的衍射照射到相邻的轨道。 因此，在再现信息时，将低功率的激光束照射到相邻的轨道上，并且可以获得消除串扰分量的信息，而不会导致信息的擦除等。

公开(公告)号：US06381206B1

公开(公告)日：2002-04-30

申请号：US09429615

申请日：1999-10-29

申请人： Takanori Maeda

发明人： Takanori Maeda

IPC分类号： G11B576

CPC分类号： G11B7/128 ,  G11B7/0956 ,  G11B7/126

摘要： An optical recording apparatus includes: a tilt detecting device for detecting a circumferential direction component of a tilt of a recording medium with respect to a laser beam light axis; a recording pulse signal generating device for generating a recording pulse signal by coding an information signal to be recorded and outputting the generated recording pulse; a modulating device for receiving the recording pulse from the recording pulse signal generating device, and modulating an intensity of a laser beam based on the received recording pulse signal; a laser beam irradiating device for applying the modulated laser beam onto the recording medium; and a recording pulse signal control device for controlling a sending timing at which the recording pulse signal is sent from the recording pulse signal generating device to the modulating device, based on the circumferential direction component detected by the tilt detecting device.

摘要翻译： 光学记录装置包括：倾斜检测装置，用于检测记录介质相对于激光束光轴倾斜的周向分量; 记录脉冲信号发生装置，用于通过对要记录的信息信号进行编码来产生记录脉冲信号并输出​​所生成的记录脉冲; 调制装置，用于从记录脉冲信号产生装置接收记录脉冲，并且基于所接收的记录脉冲信号调制激光束的强度; 激光束照射装置，用于将调制的激光束施加到记录介质上; 以及记录脉冲信号控制装置，用于基于由倾斜检测装置检测的圆周方向分量来控制记录脉冲信号从记录脉冲信号发生装置发送到调制装置的发送定时。

公开(公告)号：US06324155B1

公开(公告)日：2001-11-27

申请号：US08908926

申请日：1997-08-08

申请人： Takanori Maeda

发明人： Takanori Maeda

IPC分类号： G11B700

CPC分类号： G11B7/24 ,  G11B7/005 ,  G11B7/135 ,  G11B7/24038 ,  G11B2007/0013

摘要： A recording layer formed between a first substrate and a second substrate. The recording layer has recording surfaces on both sides thereof. A reflecting film is formed on an outside surface of the first substrate. The first and second substrates adjacent the recording layer have different refractive indexes from each other.

摘要翻译： 形成在第一基板和第二基板之间的记录层。 记录层在其两侧具有记录表面。 反射膜形成在第一基板的外表面上。 与记录层相邻的第一和第二基板彼此具有不同的折射率。

公开(公告)号：US5687146A

公开(公告)日：1997-11-11

申请号：US229442

申请日：1994-04-13

申请人： Noriaki Murao ,  Takanori Maeda

发明人： Noriaki Murao ,  Takanori Maeda

IPC分类号： G11B7/095 ,  G11B7/09 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/127 ,  G11B7/0912 ,  G11B7/13 ,  G11B7/1365 ,  G11B7/1367

摘要： An optical pickup for reading information recorded on a recording surface of an optical information storage medium such as a compact disc or a laser video disc has a light beam source for emitting a linear light beam, and an optical system including an objective lens for converging the linear light beam as a linear image on the recording surface and collecting and emitting a light beam reflected from the recording surface. A focus control device includes a parallel flat glass plate for refracting the reflected light beam from the optical system, a photodetector having a plurality of photosensitive surfaces for photoelectrically converting the light beam applied thereto from the parallel flat glass plate into a plurality of respective detected signals, an error signal generator for processing the detected signals from the photodetector into a focus error signal indicative of whether the linear image is focused on the recording surface at the focal point of the objective lens, and an actuator responsive to the focus error signal for controlling the objective lens positionally with respect to the optical information storage medium to focus the linear image on the recording surface.

摘要翻译： 用于读取记录在诸如光盘或激光视盘之类的光学信息存储介质的记录表面上的信息的光学拾取器具有用于发射线性光束的光束源，以及包括物镜的光学系统，用于会聚 线性光束作为记录表面上的线性图像并且收集和发射从记录表面反射的光束。 聚焦控制装置包括用于折射来自光学系统的反射光束的平行平板玻璃板，具有多个感光表面的光电检测器，用于将从平行平板玻璃板施加到其上的光束光电转换成多个检测信号 误差信号发生器，用于将来自光电检测器的检测信号处理成指示该线性图像是聚焦在物镜焦点处的记录表面上的聚焦误差信号;以及响应于聚焦误差信号的致动器，用于控制 物镜相对于光学信息存储介质位置地将线性图像聚焦在记录表面上。

公开(公告)号：US5633844A

公开(公告)日：1997-05-27

申请号：US364185

申请日：1994-12-27

申请人： Takanori Maeda ,  Hajime Koyanagi

发明人： Takanori Maeda ,  Hajime Koyanagi

IPC分类号： G11B7/095 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1359 ,  G11B7/0903 ,  G11B7/127 ,  G11B7/1353 ,  G11B7/1398 ,  G11B2007/13727

摘要： An optical pickup device for writing or reading data from an optical information recording medium has a recording layer whose state changes in response to a density of intensity of an irradiated light beam and a track being used for a tracking servo control system. The device includes a first light spot irradiating element for irradiating a writing or reading light beam onto the recording layer to form a writing or reading spot and a second light spot irradiating element for irradiating at least one controlling light beam onto the recording layer to form a controlling spot having a major axis extending along the track and being longer than a transverse axis perpendicular to the major axis within a level of luminous flux density keeping an original state of the recording layer, whereby a tracking servo control signal having a sufficient level is obtained.

摘要翻译： 用于从光学信息记录介质写入或读取数据的光学拾取装置具有响应于照射光束的密度和用于跟踪伺服控制系统的轨道的状态而改变的记录层。 该装置包括用于将写入或读取光束照射到记录层上以形成书写或读取点的第一光点照射元件和用于将至少一个控制光束照射到记录层上的第二光点照射元件，以形成 控制光斑具有在轨道上延伸的长轴，并且在保持记录层原始状态的光通量密度水平内比长轴垂直的横轴更长，从而获得具有足够电平的跟踪伺服控制信号 。