公开(公告)号：US5032000A

公开(公告)日：1991-07-16

申请号：US301880

申请日：1989-01-26

申请人： Seiichi Shingaki ,  Kohei Nakata ,  Takashi Serizawa ,  Kazuyoshi Nagao ,  Haruo Tomono

发明人： Seiichi Shingaki ,  Kohei Nakata ,  Takashi Serizawa ,  Kazuyoshi Nagao ,  Haruo Tomono

IPC分类号： G02B6/028 ,  C03C21/00 ,  C03C25/00 ,  G02B3/00

CPC分类号： C03C25/00 ,  C03C21/001 ,  G02B3/0087

摘要： A gradient index-type optical device produced by the ion exchange process, comprising: a transparent dielectric body having a refractive index distribution, and a refractive index distribution-adjusting portion disposed on at least a part of the transparent dielectric body. Because of the presence of the refractive-index distribution, the ion-exchange speed therethrough is controlled to provide a controlled refractive index distribution in the transparent dielectric body. As a result, a gradient index-type optical device having a large refractive index factor (g value) without substantial increase in aberration.

摘要翻译： 一种通过离子交换方法制造的梯度折射率型光学元件，包括：具有折射率分布的透明电介质体和设置在所述透明电介质体的至少一部分上的折射率分布调节部。 由于存在折射率分布，控制离子交换速度以在透明介电体中提供受控的折射率分布。 结果，具有大的折射率因子（g值）的梯度折射率型光学器件，而不会显着增加像差。

公开(公告)号：US4971423A

公开(公告)日：1990-11-20

申请号：US200858

申请日：1988-06-01

申请人： Kohei Nakata ,  Seiichi Shingaki ,  Takashi Serizawa ,  Haruo Tomono

发明人： Kohei Nakata ,  Seiichi Shingaki ,  Takashi Serizawa ,  Haruo Tomono

IPC分类号： G02B3/00 ,  C03C21/00 ,  G02B6/028 ,  G02B6/134

CPC分类号： G02B6/0281 ,  C03C21/00 ,  G02B6/1345

摘要： A gradient index-type optical device is produced by the ion exchange process. First, a transparent dielectric body contacting an ion to be exchanged is provided with a light-absorbing portion containing also an ion to be exchanged and a coloring component at at least a part of the surface thereof. The transparent dielectric is soaked in or caused to contact a molten salt containing an ion providing a refracted index distribution for ion exchange. In the gradient index-transparent dielectric thus produced, the light-absorbing portion can have a refractive index continuous with that of the transparent dielectric body and a thermal expansion coefficient equal to or smaller than that of the transparent dielectric body, so that flare at the boundary and the stress fragility are alleviated. The optical device can also have a good size accuracy.

公开(公告)号：US08254234B2

公开(公告)日：2012-08-28

申请号：US13207570

申请日：2011-08-11

申请人： Harumitsu Miyashita ,  Kohei Nakata

发明人： Harumitsu Miyashita ,  Kohei Nakata

IPC分类号： G11B7/004

CPC分类号： G11B7/013 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2220/216 ,  G11B2220/2541

摘要： A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read signal representing information that has been read from the information recording medium, and shaping the waveform of the digital read signal; subjecting the shaped digital read signal to maximum likelihood decoding, thereby generating a binarized signal showing a result of the maximum likelihood decoding; and calculating the quality of the digital read signal based on the shaped digital read signal and the binarized signal. If the quality of the read signal is calculated by a PRML method in which a number of zero-cross portions are included in a merging path of a minimum difference metric, the quality is calculated by using only a state transition pattern in which only one zero-cross portion is included in a merging path of a non-minimum difference metric.

摘要翻译： 根据本发明的用于对信息记录介质进行评级的方法包括以下步骤：接收基于表示从信息记录介质读取的信息的模拟读取信号产生的数字读取信号，并且对波形进行整形 的数字读取信号; 对成形数字读取信号进行最大似然解码，从而生成表示最大似然解码结果的二值化信号; 并根据成形数字读取信号和二值化信号计算数字读取信号的质量。 如果通过PRML方法计算读取信号的质量，其中在最小差值度量的合并路径中包括多个零交叉部分，则仅通过仅使用一个零的状态转换模式来计算质量 - 交叉部分被包括在非最小差值度量的合并路径中。

公开(公告)号：US07965593B2

公开(公告)日：2011-06-21

申请号：US12121271

申请日：2008-05-15

申请人： Mamoru Shoji ,  Takashi Ishida ,  Kohei Nakata

发明人： Mamoru Shoji ,  Takashi Ishida ,  Kohei Nakata

IPC分类号： G11B7/00

CPC分类号： G11B7/00736 ,  G11B7/08517 ,  G11B7/0901 ,  G11B7/0945

摘要： An optical disk 101 in which information is recorded on a groove track, and an optical disk 107 in which information is recorded on a land track. The optical disk 101 has a control data area 102, and a data recording area 103 in which user data is recorded. The optical disk 107 has a control data area 108, and a data recording area 109 in which user data is recorded. A code for indicating the groove track or the land track onto which a tracking servo control is to be executed is provided both in the control data area 102 of the optical disk 101, and in the control data area 108 of the optical disk 107.

公开(公告)号：US20110122749A1

公开(公告)日：2011-05-26

申请号：US13014923

申请日：2011-01-27

申请人： Kohei Nakata ,  Naohiro Kimura ,  Harumitsu Miyashita ,  Hiroshi Ueda ,  Yoshikazu Yamamoto

发明人： Kohei Nakata ,  Naohiro Kimura ,  Harumitsu Miyashita ,  Hiroshi Ueda ,  Yoshikazu Yamamoto

IPC分类号： G11B20/00 ,  G11B7/24

CPC分类号： G11B7/00745 ,  G11B20/1217 ,  G11B27/3027 ,  G11B2020/1221 ,  G11B2020/1227 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1268 ,  G11B2020/1278 ,  G11B2020/1292 ,  G11B2220/235 ,  G11B2220/2541

摘要： An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address.

摘要翻译： 提供了用于适当地控制记录线密度和信息记录层数的地址格式，以便在诸如光盘等的信息记录介质的记录容量在必要的S / N比 可以保证。 光盘包括具有同心或螺旋形轨道的信息记录层，并且具有用于描述轨道地址的格式，其被预先记录在轨道上或被添加到待记录在信息记录层上的数据 。 该格式包括关于信息记录层的层信息和关于轨道地址的地址信息。

公开(公告)号：US20100149940A1

公开(公告)日：2010-06-17

申请号：US12067902

申请日：2006-09-27

申请人： Kohei Nakata ,  Harumitsu Miyashita ,  Takeshi Nakajima

发明人： Kohei Nakata ,  Harumitsu Miyashita ,  Takeshi Nakajima

IPC分类号： G11B20/18

CPC分类号： H03L7/087 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10212 ,  G11B20/10222 ,  G11B20/1217 ,  G11B20/14 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1274 ,  G11B2020/1287 ,  H03L7/07 ,  H03L7/091

摘要： A clock signal generator according to the present invention includes: a wobble phase error detecting section for detecting a wobble phase error that is a difference in phase between a wobble signal, representing a wobbled shape of a track on an optical disk medium, and a clock signal; a data phase error detecting section for detecting a data phase error that is a difference in phase between a data signal, representing data that has been written on the optical disk medium, and the clock signal; a frequency control section for generating a frequency control signal to control the frequency of the clock signal based on the wobble phase error and the data phase error; and a clock oscillation section for generating the clock signal with its frequency controlled in accordance with the frequency control signal.

摘要翻译： 根据本发明的时钟信号发生器包括：摆动相位误差检测部分，用于检测作为表示光盘介质上的轨道的摆动形状的摆动信号与时钟之间的相位差的摆动相位误差 信号; 数据相位误差检测部分，用于检测表示已经写在光盘介质上的数据的数据信号与时钟信号之间的相位差的数据相位误差; 频率控制部分，用于基于摆动相位误差和数据相位误差产生频率控制信号以控制时钟信号的频率; 以及时钟振荡部分，用于产生其频率根据频率控制信号而被控制的时钟信号。

公开(公告)号：US20100081561A1

公开(公告)日：2010-04-01

申请号：US12551822

申请日：2009-09-01

申请人： Kohei Nakata ,  Michio Endo ,  Kentaro Doguchi ,  Shigeru Fujino

发明人： Kohei Nakata ,  Michio Endo ,  Kentaro Doguchi ,  Shigeru Fujino

IPC分类号： C04B35/50

CPC分类号： C04B35/44 ,  C04B35/62665 ,  C04B35/62813 ,  C04B35/62884 ,  C04B35/62897 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/528 ,  C04B2235/5436 ,  C04B2235/604 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/9646 ,  G02B1/00 ,  Y10T428/252 ,  Y10T428/2993

摘要： Provided is an optical element, which is formed by vacuum-sintering a molded body of ceramic particles having an average particle diameter of 1 μm or more and 10 μm or less and including LnxAlyO[x+y]×1.5 (Ln represents a rare-earth element, x represents 1≦x≦10, and y represents 1≦y≦5). Ln preferably includes at least one kind selected from La, Gd, Yb, and Lu. The optical element preferably has a refractive index of 1.85 or more and 2.06 μm or less, and an Abbe number of 48 or more and 65 or less. The optical element having optical properties of high refractive index and low dispersibility is obtained.

摘要翻译： 提供一种光学元件，其通过真空烧结平均粒径为1μm以上且10μm以下的陶瓷粒子的成型体而形成，并且包括LnxAlyO [x + y]×1.5（Ln表示稀土元素， x元素，x表示1＆nlE; x＆nlE; 10，y表示1＆nlE; y＆nlE; 5）。 Ln优选包括选自La，Gd，Yb和Lu中的至少一种。 光学元件的折射率优选为1.85以上且2.06μm以下，阿贝数为48以上且65以下。 获得具有高折射率和低分散性的光学性质的光学元件。

公开(公告)号：US07511408B2

公开(公告)日：2009-03-31

申请号：US11222850

申请日：2005-09-12

申请人： Kohei Nakata

发明人： Kohei Nakata

IPC分类号： H01J19/42

CPC分类号： H01J11/10 ,  C03C3/064 ,  H01J9/244 ,  H01J11/36 ,  H01J29/864 ,  H01J31/127 ,  H01J2217/49271 ,  H01J2329/8635 ,  H01J2329/864 ,  H01J2329/8645

摘要： A spacer for an image display apparatus includes a glass base member which contains SiO2 by 10 to 35 wt %, RO (R representing an alkali earth metal) by 20 to 60 wt %, B2O3 by 9 to 30 wt % and Sb2O3 by 0.01 to 5 wt %.

摘要翻译： 用于图像显示装置的间隔件包括玻璃基底构件，其包含SiO 2为10〜35重量％，RO（R表示碱土金属）为20〜60重量％，B 2 O 3为9〜30重量％，Sb 2 O 3为0.01〜 5重量％。

公开(公告)号：US07152433B2

公开(公告)日：2006-12-26

申请号：US10212098

申请日：2002-08-06

申请人： Kohei Nakata

发明人： Kohei Nakata

IPC分类号： C03C27/10

CPC分类号： C03C27/10 ,  H01J9/241 ,  H01J9/242 ,  H01J2329/864 ,  H01J2329/8645 ,  H01J2329/8655 ,  H01J2329/866

摘要： A method of manufacturing an image display apparatus is provided and includes the steps of bringing panel members that constitute a display panel of the image display apparatus into a bake processing chamber, subjecting to bake processing the display panel members, lowering a temperature of the display panel members, and bringing the display panel members into a seal-bonding processing chamber. Seal-bonding processing is conducted by local heating to a seal-bonding portion.

摘要翻译： 提供一种制造图像显示装置的方法，包括以下步骤：将构成图像显示装置的显示面板的面板构件放入烘烤处理室，对显示面板构件进行烘烤处理，降低显示面板的温度 并将显示面板构件带入密封接合处理室。 通过局部加热对密封接合部进行密封接合处理。

公开(公告)号：US06905384B2

公开(公告)日：2005-06-14

申请号：US09781305

申请日：2001-02-13

申请人： Toshihiko Miyazaki ,  Kohei Nakata ,  Tetsuya Kaneko

发明人： Toshihiko Miyazaki ,  Kohei Nakata ,  Tetsuya Kaneko

IPC分类号： H01J9/39 ,  H01J9/18 ,  H01J9/26 ,  H01J9/38 ,  H01J9/40 ,  H01J9/46 ,  H01J9/48 ,  H01J9/00

CPC分类号： H01J9/46 ,  H01J9/18 ,  H01J9/38 ,  H01J9/48 ,  H01J2329/00

摘要： A method and an apparatus for manufacturing an image displaying apparatus having a display panel. A first substrate of the display panel on which a phosphor exciter is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciter is provided, are prepared under a vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.

摘要翻译： 一种用于制造具有显示面板的图像显示装置的方法和装置。 在真空气氛下制备其上设置有荧光体激发器的显示面板的第一基板和设置有由荧光体激发器发光的荧光体的显示面板的第二基板。 然后，将第一和第二基板载带在吸气处理室或烘烤处理室中，并在真空环境下对其进行吸气处理或烘烤处理。 在处理之后，第一和第二基板被携带在密封处理室中，其中基板在真空气氛下被热密封。 因此，在制造图像显示装置中实现真空排气时间的减少和真空度的提高，并且提高了制造效率。