公开(公告)号：US20050167868A1

公开(公告)日：2005-08-04

申请号：US11089657

申请日：2005-03-25

申请人： Minoru Takeda ,  Nobuyuki Arakawa ,  Motohiro Furuki ,  Shingo Imanishi

发明人： Minoru Takeda ,  Nobuyuki Arakawa ,  Motohiro Furuki ,  Shingo Imanishi

IPC分类号： G11B11/105 ,  B29C35/08 ,  B29C43/02 ,  B29C43/18 ,  B29C43/20 ,  B29C45/26 ,  B29D17/00 ,  G11B7/007 ,  G11B7/26 ,  G11B9/10

CPC分类号： B29D17/005 ,  B29C35/0888 ,  B29C43/021 ,  B29C43/18 ,  B29C43/203 ,  B29C45/2632 ,  B29C2035/0827 ,  B29C2043/025 ,  G11B7/00718 ,  G11B7/263 ,  G11B9/10

摘要： A stamper suppressed in surface roughness, uneven thickness, and deviation of circularity in inner circumference, a method of producing the same, an optical recording medium produced by molding using the stamper, and a method of producing the same, wherein a base member having a mirror polished main surface and comprising silicon or glass is formed with a resist film; the resist film is exposed by a focused electron beam, an ultraviolet ray laser, etc. and developed so as to form a resist film of a pattern corresponding to relief shapes; the mirror surface of the base member is processed to relief shapes (projecting regions and recessed regions) by dry etching etc. using the obtained resist film as a mask so as to obtain a stamper; the obtained stamper is used for injection molding to form a medium substrate; and an optical recording multilayer film and a protective layer are formed to thereby produce an optical recording medium.

公开(公告)号：US06818855B2

公开(公告)日：2004-11-16

申请号：US10319594

申请日：2002-12-16

申请人： Minoru Takeda ,  Motohiro Furuki

发明人： Minoru Takeda ,  Motohiro Furuki

IPC分类号： B23K2600

CPC分类号： G11B7/261 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595 ,  G11B7/26 ,  G11B7/263

摘要： There are provided an optical disk and a manufacturing method thereof which can increase its recording capacity, e.g. to 15 GB or higher. This optical disk may comprises an optical disk substrate 3 in which successive pits corresponding to a recording signal are formed, a reflection film 4 formed in this optical disk substrate 3 on its surface that successive pits 2 are formed and a light transmissive layer 5 formed on this reflection film 4. When a recorded signal is read out, i.e. reproduced from the optical disk, a signal recorded as successive pits is read out by irradiating of short-wavelength laser light having a wavelength of 350 nm to 420 nm from the side of the light transmissive layer 5 formed on the surface of the optical disk. Moreover, in this optical disk, when the successive pits are observed from the side of the light transmissive layer irradiated by reproducing laser light, the successive pits contain pits having length and width ranging from 80 nm to 250 nm, and the reflection film has the film thickness selected to be 20 nm or less, e.g. greater than 8 nm.

摘要翻译： 提供了一种可以增加其记录容量的光盘及其制造方法，例如， 至15 GB或更高。 该光盘可以包括：光盘基板3，其中形成有对应于记录信号的连续的凹坑;在该光盘基板3的形成有连续的凹坑2的表面上形成的反射膜4，以及形成在 当从光盘再现记录信号时，通过从波长350nm至420nm的波长的短边照射短波长激光，读出记录为连续凹坑的信号 形成在光盘表面上的透光层5.此外，在该光盘中，当从由再现激光照射的透光层的一侧观察到连续的凹坑时，连续的凹坑包含具有长度和宽度的凹坑 范围为80nm至250nm，并且反射膜的膜厚选择为20nm或更小，例如 大于8nm。

公开(公告)号：US06653994B2

公开(公告)日：2003-11-25

申请号：US09935989

申请日：2001-08-23

申请人： Minoru Takeda ,  Shinji Masuda

发明人： Minoru Takeda ,  Shinji Masuda

IPC分类号： G09G388

CPC分类号： G09G3/2927 ,  G09G2310/066

摘要： To provide a PDP display device and a drive method which use a set-up pulse having a portion that drops in voltage at a rate of 2V/&mgr;sec or more, whereby the occurrence of discharge errors in a sustain period can be suppressed even when wall charges are not sufficiently erased in an erase period and excess wall charges remain on some or all electrodes in a set-up period. To this end, the drop portion of the set-up pulse applied to a scan electrode group is set after a pulse applied to a sustain electrode reaches a voltage which does not cause a discharge between the sustain and scan electrodes. As a result, the occurrence of discharge errors in the sustain period is suppressed, without prolonging the set-up period.

公开(公告)号：US06624774B2

公开(公告)日：2003-09-23

申请号：US09796859

申请日：2001-03-01

申请人： Minoru Takeda ,  Kazuyuki Fujiwara

发明人： Minoru Takeda ,  Kazuyuki Fujiwara

IPC分类号： H03M166

CPC分类号： H03M3/346 ,  H03M3/502

摘要： In a delta sigma type D/A converter, in order to be capable of carrying out muting operation in steps at steps lower than 1 quantized step by digital processing, a multiplexor 2 for selectively outputting a mute code 15 for making an analog signal null and a thermometer code 14 to a local DAC4 is provided between a thermometer code converter 1 and the local DAC4, a time period of 1/M of a sampling period is made to constitute 1 cycle, at m1 (0≦m1≦M) cycle, the thermometer code 14 is made an output of the multiplexor 2 and at other m2 (m2=M−m1) cycle, the mute code 15 is made an output thereof and muting is carried out reducing the m1 cycle or muting is relieved by increasing thereof in steps at respective sampling period.

摘要翻译： 在Δ-Σ型D / A转换器中，为了能够通过数字处理以低于1量化步长的步骤进行静噪操作;多路复用器2，用于选择性地输出用于使模拟信号为空的静音码15;以及 在温度计代码转换器1和本地DAC4之间设置温度计代码14到本地DAC4，采样周期的1 / M的时间周期构成1周期，在m1（0 <= m1 <= M） 将温度计代码14作为多路复用器2的输出，在其他m2（m2 = M-m1）周期，静音代码15作为其输出，进行静音以减少m1周期或静音由 在相应的采样周期内逐步增加。

公开(公告)号：US06512735B1

公开(公告)日：2003-01-28

申请号：US09720742

申请日：2001-04-02

申请人： Minoru Takeda ,  Motohiro Furuki

发明人： Minoru Takeda ,  Motohiro Furuki

IPC分类号： G11B724

CPC分类号： G11B7/261 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595 ,  G11B7/26 ,  G11B7/263

摘要： An optical disk having a recording capacity of about at least 15 GB and methods of making the same. The optical disk may include an optical disk substrate having successive pits formed into a first surface. The successive pits may correspond to a recording signal. The optical disk may further have a reflection film formed on the first surface of the optical disk substrate and in the successive pits and have a light transmissive layer formed on the reflection film. If a length of an effective pit length B of each pit of the plurality of successive pits is restricted to be not less than 80 nm and not greater than 250 nm, then a thickness T of the reflection film is restricted to be not greater than 20 nm and not less than 8 nm, and the thickness of the light transmissive layer is restricted to be not greater than 177 &mgr;m and not less than 10 &mgr;m.

摘要翻译： 具有大约至少15GB的记录容量的光盘及其制造方法。 光盘可以包括具有形成在第一表面中的连续凹坑的光盘基板。 连续的凹坑可以对应于记录信号。 光盘还可以具有形成在光盘基板的第一表面上的反射膜和连续的凹坑中，并且在反射膜上形成有透光层。 如果多个连续凹坑的每个凹坑的有效凹坑长度B的长度被限制为不小于80nm且不大于250nm，则反射膜的厚度T被限制为不大于20 nm且不小于8nm，并且透光层的厚度限制在不大于177μm且不小于10μm。

公开(公告)号：US06344812B1

公开(公告)日：2002-02-05

申请号：US09587870

申请日：2000-06-06

申请人： Minoru Takeda ,  Yoshihiro Hanada

发明人： Minoru Takeda ,  Yoshihiro Hanada

IPC分类号： H03M300

CPC分类号： H03M1/0663 ,  H03M1/74 ,  H03M3/424 ,  H03M3/502

摘要： An improved delta sigma digital-to-analog converter in which the thermometer code, which is output from a thermometer code converter, is divided into P blocks for every Q bits. An arrangement of the blocks is shifted in rotation by a barrel shifter at a frequency fs. Along with this, an arrangement of bits within each block is shifted in rotation by a shift register at a frequency of Q times fs. The bits within the code thus obtained are provided to local DACs, each specified to correspond to each of the given bits. In this manner, it is possible to maintain a lower operating frequency while at the same time to reducing the distortion in the output caused by a change in shifting the data in rotation in the local DACs, which change occurs depending on bit levels of the data in a form of the thermometer code.

摘要翻译： 改进的Δ-Σ数模转换器，其中从温度计代码转换器输出的温度计代码被分成每个Q位的P个块。 块的排列由桶形移位器以频率fs旋转。 与此同时，每个块内的比特排列由移位寄存器以Q倍fs的频率移位。 由此获得的代码中的位被提供给本地DAC，每个DAC被指定为对应于给定位中的每一个。 以这种方式，可以同时维持较低的工作频率，同时减少由于本地DAC中的旋转中的数据的移位变化引起的输出失真，该变化取决于数据的位电平而发生 以温度计代码的形式。

公开(公告)号：US06214528B1

公开(公告)日：2001-04-10

申请号：US09161670

申请日：1998-09-29

申请人： Minoru Takeda ,  Hisayuki Yamatsu ,  Motohiro Furuki

发明人： Minoru Takeda ,  Hisayuki Yamatsu ,  Motohiro Furuki

IPC分类号： G03F720

CPC分类号： G11B7/261 ,  Y10S430/146

摘要： A photoresist is applied onto a substrate, the photoresist-coated substrate is exposed to a laser beam of 300 nm or less in wavelength to form a latent image indicative of an information signal, and the photoresist on the substrate is developed to form a pit/groove pattern indicating the information signal. The photoresist has a mean value of 0.1 or less between extinction coefficients before and after the exposure to the laser beam.

摘要翻译： 将光致抗蚀剂施加到基板上，将光致抗蚀剂涂覆的基板暴露于波长为300nm或更小的激光束，以形成指示信息信号的潜像，并且将基板上的光致抗蚀剂显影以形成凹坑/ 凹槽图案指示信息信号。 光致抗蚀剂在暴露于激光束之前和之后的消光系数之间的平均值为0.1或更小。

公开(公告)号：US06210609B1

公开(公告)日：2001-04-03

申请号：US08936578

申请日：1997-09-24

申请人： Minoru Takeda ,  Toshiyuki Kashiwagi ,  Nobuyuki Arakawa

发明人： Minoru Takeda ,  Toshiyuki Kashiwagi ,  Nobuyuki Arakawa

IPC分类号： B29D1100

CPC分类号： B29D17/005 ,  B29C45/263 ,  B29C2045/2653 ,  Y10S425/81

摘要： In the method of manufacturing an optical recording medium according to the present invention, when an optical recording medium having at least first and second minute concave and convex surfaces formed thereon is manufactured, the first and second minute concave and convex surfaces are simultaneously molded on both surfaces of a substrate of the optical recording medium. Therefore, it is possible to manufacture a multilayer optical recording medium having an excellent symmetrical structure with respect to a vertical cross section direction of the substrate, i.e., in the thickness direction of the optical recording medium. Moreover, it is possible to effectively suppress the deformation thereof resulting from curing or shrinkage of an light curing resin or the like, absorption or removal of vapor in the air into or from a substrate, a transparent intermediate film or the like, and so on.

摘要翻译： 在根据本发明的光记录介质的制造方法中，当制造具有形成在其上的至少第一和第二微小凹凸表面的光记录介质时，第一和第二微小凹凸表面同时模制在两者上 光记录介质的基板的表面。 因此，可以制造相对于基板的垂直截面方向即光记录介质的厚度方向具有优异的对称结构的多层光学记录介质。 此外，可以有效地抑制由于光固化树脂等的固化或收缩而导致的空气中的蒸气的吸收或除去基板，透明中间膜等的空气中的变形 。

公开(公告)号：US20120299981A1

公开(公告)日：2012-11-29

申请号：US13576133

申请日：2011-02-03

申请人： Takahiko Origuchi ,  Hiroko Yamamoto ,  Minoru Takeda

发明人： Takahiko Origuchi ,  Hiroko Yamamoto ,  Minoru Takeda

IPC分类号： G09G5/10 ,  G09G3/28

CPC分类号： G09G3/204 ,  G09G3/2037 ,  G09G3/2927 ,  G09G2320/0247 ,  G09G2320/0271

摘要： The present invention allows a plasma display panel to have gradation levels being sufficient in number and to have stable address discharge. In the plasma display apparatus having a panel and a driver circuit, the driver circuit drives the panel on the subfield structure that satisfies the following. One field has a first subfield group and a second subfield group temporally successive to the first subfield group. Each of the subfield groups is formed of a plurality of temporally successive subfields. The luminance weight increases in the order of occurrence of the subfields within each subfield group. The first subfield of the second subfield group has a luminance weight smaller than that of the last subfield of the first subfield group. When a gradation having a level greater than a gradation threshold is displayed, the first subfield of the second subfield group has no light emission.

摘要翻译： 本发明允许等离子体显示面板具有数量足够的灰度级并且具有稳定的寻址放电。 在具有面板和驱动电路的等离子体显示装置中，驱动电路驱动满足以下的子场结构的面板。 一个场具有第一子场组和时间上连续于第一子场组的第二子场组。 每个子场组由多个时间上连续的子场形成。 亮度权重以每个子场组内的子场的发生顺序增加。 第二子场组的第一子场的亮度权重比第一子场组的最后一个子场的亮度权重小。 当显示具有大于灰度阈值的灰度的灰度时，第二子场组的第一子场不发光。

公开(公告)号：US08212745B2

公开(公告)日：2012-07-03

申请号：US12300380

申请日：2008-04-10

申请人： Minoru Takeda ,  Kenji Ogawa ,  Keiji Akamatsu

发明人： Minoru Takeda ,  Kenji Ogawa ,  Keiji Akamatsu

IPC分类号： G09G3/28

CPC分类号： G09G3/2029 ,  G09G3/2927 ,  G09G2310/065 ,  G09G2310/066

摘要： In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an address period for selectively causing address discharge in a discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. In the discharge cell for causing address discharge in a certain subfield other than the head subfield in each subfield group, address discharge is caused even in the head subfield.

摘要翻译： 在面板的驱动方法中，通过布置具有用于选择性地在放电单元中进行寻址放电的寻址周期的多个子场和用于引起与亮度相对应的数量的维持放电的维持周期来形成一个场周期 放电单元中的重量。 通过布置具有亮度权重单调增加的多个子场的多个子场组来形成一个场周期。 在用于在每个子场组中的头部子场以外的某个子场中产生寻址放电的放电单元中，甚至在头部子场中也引起地址放电。