公开(公告)号：US06970317B2

公开(公告)日：2005-11-29

申请号：US10297708

申请日：2002-04-09

申请人： Tatsuya Kato ,  Yoshihisa Takayama

发明人： Tatsuya Kato ,  Yoshihisa Takayama

IPC分类号： G11B15/02 ,  G11B15/07 ,  G11B15/68 ,  G11B17/22 ,  G11B23/087 ,  G11B27/00 ,  G11B27/11 ,  G11B15/18

CPC分类号： G11B23/08714 ,  G11B15/07 ,  G11B15/68 ,  G11B15/6875 ,  G11B17/22 ,  G11B23/087 ,  G11B27/002 ,  G11B27/11 ,  G11B2220/41 ,  G11B2220/655

摘要： This invention provides a recording medium supportable device such as a library device (50), which authenticates each recording medium by identification information such as serial number and controls the recording medium by a command based on radio communication. In this case, a communication identifier like a session identifier corresponding to the identification number is set and provided and the communication identifier is included in a command at the time of execution of control, so that only a specified recording medium to be controlled carries out an operation corresponding to the command. When authenticating the recording medium, the identification information, which is proper information such as serial number, is confirmed through reliable communication using successive communication identifiers, and reliable authentication of the recording medium is carried out by several stages of communication.

摘要翻译： 本发明提供了诸如库装置（50）的记录介质可支持装置，其通过诸如序列号的标识信息来认证每个记录介质，并且通过基于无线电通信的命令来控制记录介质。 在这种情况下，设置并提供与识别号对应的会话标识符等通信标识符，并且在执行控制时将通信标识符包括在命令中，使得只有指定的被控制的记录介质才能执行 操作对应命令。 当对记录介质进行认证时，通过使用连续通信标识符的可靠通信来确认作为序列号的适当信息的识别信息，并且通过几个通信阶段执行记录介质的可靠认证。

公开(公告)号：US06965556B1

公开(公告)日：2005-11-15

申请号：US09609898

申请日：2000-07-03

申请人： Takashi Kikukawa ,  Hajime Utsunomiya ,  Hiroshi Shingai ,  Tatsuya Kato

发明人： Takashi Kikukawa ,  Hajime Utsunomiya ,  Hiroshi Shingai ,  Tatsuya Kato

IPC分类号： G11B7/005 ,  G11B7/24

CPC分类号： G11B7/24085 ,  B82Y10/00 ,  G11B7/0052 ,  G11B7/24

摘要： In an optical information medium having an information bearing surface having projections and depressions and/or capable of forming recorded marks, a functional layer is added. The information borne on the information bearing surface can be read by using reading light of a wavelength longer than 4NA·PL wherein PL is the minimum size of the projections and depressions or the recorded marks and NA is the numerical aperture of a reading optical system, setting the power of the reading light within such a range that the functional layer does not change its complex index of refraction, and irradiating the reading light to the information bearing surface constructed by the functional layer or to the information bearing surface through the functional layer or to the functional layer through the information bearing surface. The medium enables reading at a high resolution beyond the diffraction limit.

摘要翻译： 在具有具有凹凸和/或能够形成记录标记的信息承载面的光信息介质中，添加功能层。 可以通过使用长于4NA的波长的读取光读取承载在信息承载表面上的信息。其中P L L是最小尺寸的凹凸 或记录标记，NA是读取光学系统的数值孔径，将读取光的功率设定在功能层不改变其复杂折射率的范围内，并将读取光照射到信息承载面 通过功能层或信息承载表面通过功能层或通过信息承载表面到功能层构成。 该介质能够以超过衍射极限的高分辨率进行读取。

公开(公告)号：US20050243676A1

公开(公告)日：2005-11-03

申请号：US10516701

申请日：2003-06-02

申请人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

发明人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/24 ,  G11B7/243 ,  G11B3/00

CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B7/2403 ,  G11B7/243 ,  G11B7/258

摘要： It is an object of the present invention to provide a method for determining a pattern for modulating the power of a laser beam which can determine a pattern for modulating the power of a laser beam so that data can be recorded in a write-once type optical recording medium with a laser beam having a low recording power at a high linear recording velocity. The method for determining a pattern for modulating the power of a laser beam according to the present invention includes the steps of determining pulse train patterns by fixing a recording power at a predetermined level and varying the level of a bottom power, modulating the power of the laser beam in accordance with the pulse train patterns to record first test signals in the optical recording medium, reproducing the first test signals, determining the optimum level of the bottom power based on the amplitude of the thus reproduced first test signals, determining pulse train patterns by fixing the bottom power at the optimum level and varying the level of the recording power, modulating the power of the laser beam in accordance with the pulse train patterns to record second test signals in the optical recording medium, reproducing the second test signals and determining the optimum level of the recording power based on at least one of jitter and error rates of the thus reproduced second test signals.

摘要翻译： 本发明的目的是提供一种用于确定用于调制激光束的功率的图案的方法，该方法可以确定用于调制激光束的功率的图案，使得数据可以以一次写入型光学 以高线性记录速度具有低记录功率的激光束的记录介质。 根据本发明的确定用于调制激光束的功率的图案的方法包括以下步骤：通过将记录功率固定在预定水平并改变底部功率的电平来调节脉冲串模式的功率 激光束根据脉冲序列图案在光学记录介质中记录第一测试信号，再现第一测试信号，基于这样再现的第一测试信号的幅度确定底部功率的最佳电平，确定脉冲串模式 通过将底部功率固定在最佳水平并改变记录功率的水平，根据脉冲串模式调制激光束的功率，以将第二测试信号记录在光学记录介质中，再现第二测试信号并确定 基于由此再现的抖动和错误率中的至少一个的记录功率的最佳电平 nd测试信号。

公开(公告)号：US20050163012A1

公开(公告)日：2005-07-28

申请号：US10504442

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato

发明人： Hideaki Miura ,  Tatsuya Kato

IPC分类号： G11B7/0045 ,  G11B7/00 ,  G11B7/006 ,  G11B7/007 ,  G11B5/09

CPC分类号： G11B7/006 ,  G11B7/0062 ,  G11B7/00718 ,  G11B2007/0013

摘要： It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In the information recording method according to the present invention, a plurality of recording marks selected from a group consisting of several types of recording marks with different lengths each corresponding to an integral multiple of a clock cycle T are formed in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam thereonto via a light incidence plane 13a and the number of pulses of the laser beam to be projected onto the L0 layer 20 when at least one type of the recording mark among the several types of recording marks is formed therein is set to be smaller than the number of pulses of the laser beam to be projected onto the L1 layer 30 when the at least one type of the recording mark is formed therein.

摘要翻译： 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法，其可以形成具有良好形状的记录标记。 在根据本发明的信息记录方法中，在具有对应于时钟周期T的整数倍的不同长度的几种类型的记录标记组成的组中的多个记录标记形成在具有 至少一层堆叠的L0层20和L1层30，当至少一种记录标记类型时，通过将入射平面13a上的激光束投射到待投影到L0层20上的激光束的脉冲数 在其中形成的几种类型的记录标记中，当形成至少一种类型的记录标记时，将其设置为小于要投影到L1层30上的激光束的脉冲数。

公开(公告)号：US06611394B1

公开(公告)日：2003-08-26

申请号：US09622296

申请日：2000-10-16

申请人： Tatsuya Kato ,  Katsumi Ikeda ,  Osamu Nakamura ,  Yasuaki Kano ,  Katsumi Maekawa ,  Yoshihisa Takayama

发明人： Tatsuya Kato ,  Katsumi Ikeda ,  Osamu Nakamura ,  Yasuaki Kano ,  Katsumi Maekawa ,  Yoshihisa Takayama

IPC分类号： G11B1518

CPC分类号： G11B15/07 ,  G11B23/042 ,  G11B23/08714 ,  G11B27/107 ,  G11B27/11 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90

摘要： When a memory in cassette (MIC) in a loaded tape cassette can successfully be accessed, an MIC type stored in the MIC is detected to judge a data format the tape cassette has. To this end, the tape cassette is adapted such that the data format or the loaded tape cassette can be identified without detecting an identification hole formed in the tape cassette. Thus, it is possible to easily accommodate any future extension of the data format.

摘要翻译： 当可以成功访问装入磁带盒中的磁带盒（MIC）中的存储器时，检测存储在MIC中的MIC类型以判断磁带盒具有的数据格式。 为此，盒式磁带适于在不检测形成在磁带盒中的识别孔的情况下识别数据格式或装载的磁带盒。 因此，可以容易地适应数据格式的任何将来的扩展。

公开(公告)号：US06299320B1

公开(公告)日：2001-10-09

申请号：US09607082

申请日：2000-06-28

申请人： Tatsuya Kato ,  Hiroyuki Bannai

发明人： Tatsuya Kato ,  Hiroyuki Bannai

IPC分类号： G01D1128

CPC分类号： H01H23/025

摘要： An illuminated switch unit according to the present invention is provided with: a case having a recess, a pair of protrusions provided within the recess and holes corresponding to those protrusions; a movable knob housed within the recess of the case, and provided on the protrusions so as to be able to rock or move up and down; a switch capable of bringing a movable contact provided on an elastic member to be driven by the movable knob into and out of contact with a stationary contact; and a substrate having a light source for illuminating the movable knob, wherein the elastic member is provided with light shielding members for preventing the light from the light source from passing through the holes in the case.

摘要翻译： 根据本发明的照明开关单元设置有：具有凹部的壳体，设置在凹部内的一对突起和对应于那些突起的孔; 容纳在壳体的凹部内的可移动的旋钮，并且设置在突起上以便能够上下摇摆或移动; 开关，其能够将设置在弹性构件上的可动触点带动由可动旋钮驱动而与固定触点接触; 以及具有用于照亮所述可移动旋钮的光源的基板，其中，所述弹性部件设置有用于防止来自所述光源的光穿过所述壳体中的所述孔的遮光部件。

公开(公告)号：US6115351A

公开(公告)日：2000-09-05

申请号：US221125

申请日：1998-12-28

申请人： Hajime Utsunomiya ,  Tatsuya Kato ,  Hiroyasu Inoue

发明人： Hajime Utsunomiya ,  Tatsuya Kato ,  Hiroyasu Inoue

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/24 ,  G11B7/254 ,  G11B7/257 ,  G11B7/26

CPC分类号： G11B7/2578 ,  G11B7/006 ,  G11B7/24 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B2007/25718 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2585 ,  G11B7/2595

摘要： Prevented is the reliability loss in phase change optical recording media during high-temperature storage, and also prevented is the phenomenon of self-erase by which a part of record marks having been formed in the media are erased due to the lateral heat diffusion into the recording layer while recording laser beams are irradiated to the media. The optical recording medium disclosed has a recording layer of a phase change type and is applied to driving units for overwriting it at a linear velocity of V.sub.0. The medium is so designed as to satisfy the requirement of 1

摘要翻译： 防止在高温存储期间相变光学记录介质中的可靠性损失，并且还防止了由于横向热扩散到介质中而在介质中形成的记录标记的一部分被擦除的自擦除现象 记录激光束的记录层被照射到介质上。 所公开的光记录介质具有相变型的记录层，并被施加到用于以V 0的线速度重写的驱动单元。 该介质被设计成满足1

公开(公告)号：US6096400A

公开(公告)日：2000-08-01

申请号：US220344

申请日：1998-12-24

申请人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya

IPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/24 ,  B32B3/02

CPC分类号： G11B7/24079 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/00454 ,  Y10T428/21

摘要： In a phase change-type optical recording medium of absorption coefficient control structure used by land/groove recording system, difference in reproduction characteristics between the land and the groove is minimized while ensuring sufficient output of the tracking signal. In the optical recording medium of the present invention, light absorption coefficient at the wavelength of said recording/reproducing beam is such that: Ac/Aa.gtoreq.0.8 when light absorption coefficient in crystalline region is Ac and light absorption coefficient in amorphous region is Aa; relation between groove width W.sub.G and land width W.sub.L is such that: x=2W.sub.G /(W.sub.L +W.sub.G).gtoreq.1.03; and the relation: .lambda.max.sup.i

摘要翻译： 在由槽脊/沟槽记录系统使用的吸收系数控制结构的相变型光学记录介质中，在确保足够的跟踪信号的输出的同时，使焊盘和凹槽之间的再现特性差异最小化。 在本发明的光记录介质中，所述记录/再现光束的波长处的光吸收系数使得当结晶区域的光吸收系数为Ac时的Ac / Aa> / = 0.8，非晶区域的光吸收系数为 阿 槽宽度WG和焊盘宽度WL之间的关系使得：x = 2WG /（WL + WG）> / = 1.03; 当反射光谱中的局部最小值的波长为λ迷你时，满足λmaxi <λu

公开(公告)号：US08986568B2

公开(公告)日：2015-03-24

申请号：US13637559

申请日：2011-03-31

申请人： Hiroyuki Morita ,  Yoshihiko Minachi ,  Takahiro Mori ,  Tatsuya Kato ,  Nobuhiro Suto ,  Naoto Oji

发明人： Hiroyuki Morita ,  Yoshihiko Minachi ,  Takahiro Mori ,  Tatsuya Kato ,  Nobuhiro Suto ,  Naoto Oji

IPC分类号： C04B35/26 ,  C04B35/64 ,  C22C33/02 ,  B22F3/22 ,  H01F1/11 ,  H01F7/02 ,  H01F41/02

CPC分类号： C22C33/0278 ,  B22F3/225 ,  B22F2998/10 ,  H01F1/11 ,  H01F7/021 ,  H01F41/0266 ,  B22F9/04 ,  B22F3/1021

摘要： The present invention aims to ensure strength of a thin-walled sintered magnet. A sintered magnet is a ferrite sintered magnet made by sintering a magnetic material. A magnetic powder mixture obtained by mixing magnetic powder with a binder resin is injection-molded into a mold with a magnetic field applied thereto to produce a molded body, which is then sintered to produce the sintered magnet. The sintered magnet has a thickness of 3.5 mm or less in the position of center of gravity thereof. The sintered magnet has a surface roughness Rz of 0.1 μm or more and 2.5 μm or less. The surface roughness Rz is a 10 point average roughness.

摘要翻译： 本发明旨在确保薄壁烧结磁体的强度。 烧结磁体是通过烧结磁性材料制成的铁氧体烧结磁体。 将磁粉与粘合剂树脂混合得到的磁性粉末混合物注射成型为具有施加磁场的模具，制成成形体，然后烧结而制成烧结磁体。 该烧结磁体的重心位置的厚度为3.5mm以下。 烧结磁体的表面粗糙度Rz为0.1μm以上且2.5μm以下。 表面粗糙度Rz为10点平均粗糙度。

公开(公告)号：US08034530B2

公开(公告)日：2011-10-11

申请号：US10503952

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato

发明人： Hideaki Miura ,  Tatsuya Kato

IPC分类号： G11B7/24 ,  G11B7/20 ,  G11B3/74

CPC分类号： G11B7/00454 ,  G11B7/0062 ,  G11B7/24038 ,  G11B2007/0013

摘要： It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In the information recording method according to the present invention, information is recorded in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam thereonto whose power is modulated between a plurality of powers including at least a recording power (Pw) and an erasing power (Pe) via a light incidence plane 13a. When information is recorded, λ/NA is set to be equal to or shorter than 700 nm, where λ is a wavelength of the laser beam and NA is a numerical aperture (NA) of an objective lens, and a ratio (Pe/Pw) of the recording power and the erasing power when information is to be recorded in the L0 layer 20 is set to be smaller than that when information is to be recorded in the L1 layer 30.

摘要翻译： 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法，其可以形成具有良好形状的记录标记。 在根据本发明的信息记录方法中，信息被记录在具有至少堆叠的L0层20和L1层30的光学记录介质10中，通过将激光束投射到其上被调制的多个功率至少包括至少 经由光入射面13a的记录功率（Pw）和擦除功率（Pe）。 当记录信息时，将λ/ NA设定为等于或小于700nm，其中λ是激光束的波长，NA是物镜的数值孔径（NA），并且比率（Pe / Pw ）和将信息记录在L0层20中时的擦除功率设置为小于在L1层30中记录信息时的擦除功率。