公开(公告)号：US06614976B2

公开(公告)日：2003-09-02

申请号：US10036372

申请日：2002-01-07

申请人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

发明人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

IPC分类号： G02B618

CPC分类号： G02B6/02014 ,  G02B6/02266 ,  G02B6/0283 ,  G02B6/03611 ,  G02B6/03627

摘要： The present invention relates to an optical fiber having a large positive dispersion in a wavelength band of 1.55 &mgr;m in order to compensate for a negative dispersion inherent in an NZ-DSF in the wavelength band of 1.55 &mgr;m. This optical fiber comprises a depressed cladding structure constituted by a core region; an inner cladding, disposed at the outer periphery of the core region, having a lower refractive index; and an outer cladding having a higher refractive index. In this optical fiber, the relative refractive index difference of the core region with respect to the outer cladding is at least 0.30% but not greater than 0.50%, and the relative refractive index difference of the inner cladding with respect to the outer cladding is at least −0.50% but not greater than −0.02%. Also, the optical fiber has a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 &mgr;m, and an effective cross-sectional area Aeff of at least 70 &mgr;m2 at the wavelength of 1.55 &mgr;m.

摘要翻译： 本发明涉及一种在1.55μm波长带中具有大的正色散的光纤，以便补偿N​​Z-DSF在1.55μm波长带内固有的负色散。 该光纤包括由芯区域构成的凹陷包层结构; 设置在芯区域的外周的具有较低折射率的内包层; 以及具有较高折射率的外包层。 在该光纤中，芯区域相对于外包层的相对折射率差为0.30％以上且0.50％以下，内包层相对于外包层的相对折射率差为 至少-0.50％但不大于-0.02％。 此外，光纤的波长为1.55μm时的色散大于18ps / nm / km，波长1.55μm的有效截面积Aeff为70mum2以上。

公开(公告)号：US06337942B1

公开(公告)日：2002-01-08

申请号：US09441550

申请日：1999-11-17

申请人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

发明人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

IPC分类号： G02B622

CPC分类号： G02B6/02014 ,  G02B6/02266 ,  G02B6/03611 ,  G02B6/03627

摘要： The present invention relates to an optical fiber having a large positive dispersion in a wavelength band of 1.55 &mgr;m in order to compensate for a negative dispersion inherent in an NZ-DSF in the wavelength band of 1.55 &mgr;m. This optical fiber comprises a depressed cladding structure constituted by a core region; an inner cladding, disposed at the outer periphery of the core region, having a lower refractive index; and an outer cladding having a higher refractive index. In this optical fiber, the relative refractive index difference of the core region with respect to the outer cladding is at least 0.30% but not greater than 0.50%, and the relative refractive index difference of the inner cladding with respect to the outer cladding is at least −0.50% but not greater than −0.02%. Also, the optical fiber has a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 &mgr;m, and an effective cross-sectional area Aeff of at least 70 &mgr;m2 at the wavelength of 1.55 &mgr;m.

公开(公告)号：US06731847B1

公开(公告)日：2004-05-04

申请号：US09556776

申请日：2000-04-25

申请人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

发明人： Takatoshi Kato ,  Kazuhiro Okamoto ,  Mitsuomi Hada ,  Shinjiro Hagihara ,  Morio Watanabe ,  Kohei Kobayashi

IPC分类号： G02B602

CPC分类号： G02B6/02014 ,  G02B6/02266 ,  G02B6/0283 ,  G02B6/03611 ,  G02B6/03627

摘要： The present invention relates to an optical fiber having a large positive dispersion in a wavelength band of 1.55 &mgr;m in order to compensate for a negative dispersion inherent in an NZ-DSF in the wavelength band of 1.55 &mgr;m. This optical fiber comprises a depressed cladding structure constituted by a core region; an inner cladding, provided on the outer periphery of the core region, having a lower refractive index; and an outer cladding having a higher refractive index. In this optical fiber, the relative refractive index difference of the core region with respect to the outer cladding is 0.30% or more but 0.50% or less, and the relative refractive index difference of the inner cladding with respect to the outer cladding is −0.50% or more but −0.02% or less. Also, the optical fiber has a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 &mgr;m, and an effective area of 70 &mgr;m2 or more at the wavelength of 1.55 &mgr;m.

摘要翻译： 本发明涉及一种在1.55μm波长带上具有大的正色散的光纤，以补偿NZ-DSF在1.55μm波长带内固有的负色散。 该光纤包括由芯区域构成的凹陷包层结构; 设置在芯区域的外周上的具有较低折射率的内包层; 以及具有较高折射率的外包层。 在该光纤中，芯区域相对于外包层的相对折射率差为0.30％以上且0.50％以下，内包层相对于外包层的相对折射率差为-0.50 ％以上但为-0.02％以下。 此外，光纤的波长为1.55μm时的色散大于18ps / nm / km，波长1.55μm的有效面积为70m 2以上。

公开(公告)号：US07233216B2

公开(公告)日：2007-06-19

申请号：US10534460

申请日：2004-06-30

申请人： Takatoshi Kato ,  Atsushi Saitoh

发明人： Takatoshi Kato ,  Atsushi Saitoh

IPC分类号： H01P5/107

CPC分类号： H01P5/107 ,  Y10T29/49163 ,  Y10T29/49165 ,  Y10T29/49798

摘要： The present invention provides a line transition and a method for manufacturing the same. The line transition is constructed such that a planar circuit can be arranged in the direction parallel to the propagation direction of electromagnetic waves propagating through a solid waveguide, the coupling characteristics of the solid waveguide with the planar circuit formed on a dielectric substrate are not influenced by the assembly precision of the waveguide and the circuit, and the line transition characteristics are not affected by a variation in manufacturing the dielectric substrate. Notches are formed at the edges of the dielectric substrate in the vicinities of coupled-line pattern segments formed on a dielectric substrate. The notches are formed by punching through holes in a ceramic green sheet serving as a motherboard, firing the motherboard, and cutting the motherboard using dicing lines passing through the through holes.

摘要翻译： 本发明提供线路转换及其制造方法。 线路转换被构造成使得平面电路可以在平行于通过固体波导传播的电磁波的传播方向的方向上布置，固体波导与形成在电介质基板上的平面电路的耦合特性不受 波导和电路的组装精度以及线路转换特性不受制造电介质基片的变化的影响。 在电介质基板上形成的耦合线图案段附近，在电介质基板的边缘处形成凹口。 通过冲孔穿过用作母板的陶瓷生片中的孔，烧制母板，并使用穿过通孔的切割线切割主板，形成切口。

公开(公告)号：US20070073729A1

公开(公告)日：2007-03-29

申请号：US11502600

申请日：2006-08-11

申请人： Takashi Tsunehiro ,  Satoshi Kikuchi ,  Shinji Kimura ,  Takatoshi Kato

发明人： Takashi Tsunehiro ,  Satoshi Kikuchi ,  Shinji Kimura ,  Takatoshi Kato

IPC分类号： G06F17/30

CPC分类号： H04L41/00

摘要： A invented computer system has a plurality of computer boards; a plurality of terminals, each of which is coupled to each of the computer boards respectively via a network; a storage device having a plurality of storage areas, which is coupled to each of the computer boards; and a management computer; and wherein the management computer manages a correspondence between a user information and the storage area, and when a use request of the computer board is transmitted from a terminal, the management computer selects a usable computer board to turn on a power, reads information necessary to start the computer board from the storage corresponding to the transmitted user information, allows the computer board to start based on the read information, and notifies the terminal of information on the started computer board and identification information on the network allocated to the started computer board.

摘要翻译： 本发明的计算机系统具有多个计算机板; 多个终端，每个终端分别经由网络耦合到每个计算机板; 具有多个存储区域的存储装置，其耦合到每个所述计算机板; 和管理电脑; 并且其中所述管理计算机管理用户信息与所述存储区域之间的对应关系，并且当从终端发送所述计算机板的使用请求时，所述管理计算机选择可用的计算机板来接通电力，读取所需的信息 从与所发送的用户信息相对应的存储器启动计算机板，允许基于读取信息启动计算机板，并且向终端通知已启动的计算机板上的信息和分配给启动的计算机板的网络上的识别信息。

公开(公告)号：US20060197008A1

公开(公告)日：2006-09-07

申请号：US11354542

申请日：2006-02-14

申请人： Takatoshi Kato ,  Katsumi Uesaka

发明人： Takatoshi Kato ,  Katsumi Uesaka

IPC分类号： H01J40/14 ,  H01L31/00 ,  H03K17/78

CPC分类号： G02B6/30 ,  G02B6/264 ,  G02B2006/4297 ,  G02F1/3523 ,  H01L31/02161 ,  H01L31/107

摘要： The present invention provides a light-receiving device that may escape the device from the breakdown thereof and may suppress an optical loss. The light-receiving device of the invention includes a surface to sense the light and a thin film made of PbSe nano-particles, diameters of which are smaller than 20 nm. This thin film operates as an optical fuse, so the device may be escaped from the breakdown thereof. Moreover, the thin film is disposed directly onto the light-sensing surface of the device, the optical loss cause between the thin film and the sensing surface may be suppressed.

摘要翻译： 本发明提供一种光接收装置，其可以使装置从其击穿中脱离，并且可以抑制光损失。 本发明的光接收装置包括用于感测光的表面和由PbSe纳米颗粒制成的薄膜，其直径小于20nm。 该薄膜作为光学保险丝操作，因此该装置可以从其击穿中逃逸。 此外，薄膜直接设置在器件的感光表面上，可以抑制薄膜和感测表面之间的光学损耗。

公开(公告)号：US20060119450A1

公开(公告)日：2006-06-08

申请号：US10534460

申请日：2004-06-30

申请人： Takatoshi Kato ,  Atsushi Saitoh

发明人： Takatoshi Kato ,  Atsushi Saitoh

IPC分类号： H01P5/107

CPC分类号： H01P5/107 ,  Y10T29/49163 ,  Y10T29/49165 ,  Y10T29/49798

摘要： The present invention provides a line transition and a method for manufacturing the same. The line transition is constructed such that a planar circuit can be arranged in the direction parallel to the propagation direction of electromagnetic waves propagating through a solid waveguide, the coupling characteristics of the solid waveguide with the planar circuit formed on a dielectric substrate are not influenced by the assembly precision of the waveguide and the circuit, and the line transition characteristics are not affected by a variation in manufacturing the dielectric substrate. Notches are formed at the edges of the dielectric substrate in the vicinities of coupled-line pattern segments formed on a dielectric substrate. The notches are formed by punching through holes in a ceramic green sheet serving as a motherboard, firing the motherboard, and cutting the motherboard using dicing lines passing through the through holes.

摘要翻译： 本发明提供线路转换及其制造方法。 线路转换被构造成使得平面电路可以在平行于通过固体波导传播的电磁波的传播方向的方向上布置，固体波导与形成在电介质基板上的平面电路的耦合特性不受 波导和电路的组装精度以及线路转换特性不受制造电介质基片的变化的影响。 在电介质基板上形成的耦合线图案段附近，在电介质基板的边缘处形成凹口。 通过冲孔穿过用作母板的陶瓷生片中的孔，烧制母板，并使用穿过通孔的切割线切割主板，形成切口。

公开(公告)号：US06859595B2

公开(公告)日：2005-02-22

申请号：US10162188

申请日：2002-06-05

申请人： Takatoshi Kato ,  Eisuke Sasaoka ,  Shigeru Tanaka

发明人： Takatoshi Kato ,  Eisuke Sasaoka ,  Shigeru Tanaka

IPC分类号： G02B6/02 ,  G02B6/036 ,  H04B10/25 ,  H04B10/2507 ,  H04B10/2525 ,  H04B10/2543 ,  H04J14/00 ,  H04J14/02 ,  G02B6/16

CPC分类号： G02B6/036 ,  G02B6/02019 ,  G02B6/02223 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/0365 ,  G02B6/03666

摘要： The present invention relates to an optical fiber which enables favorable optical communications in 1.3-μm and 1.55-μm wavelength bands, and an optical transmission system including the same. The optical fiber according to the present invention has only one zero-dispersion wavelength within a wavelength range of 1.20 μm to 1.60 μm, the zero-dispersion wavelength existing within a wavelength range of 1.37 μm to 1.50 μm , and has a positive dispersion slope at the zero-dispersion wavelength, thereby enabling favorable optical communications utilizing each signal light in the 1.3-μm and 1.55-μm wavelength bands sandwiching the zero-dispersion wavelength.

摘要翻译： 本发明涉及能够在1.3μm和1.55μm波长带中实现良好的光通信的光纤，以及包括该光纤的光传输系统。 根据本发明的光纤在1.20μm至1.60μm的波长范围内仅具有一个零色散波长，零色散波长存在于1.37μm至1.50μm的波长范围内，并且具有正色散斜率 零色散波长，从而能够利用夹着零色散波长的1.3μm和1.55μm波长带中的每个信号光进行良好的光通信。

公开(公告)号：US06617999B2

公开(公告)日：2003-09-09

申请号：US10175078

申请日：2002-06-20

申请人： Nobuhiro Kondo ,  Yukio Takimoto ,  Takatoshi Kato

发明人： Nobuhiro Kondo ,  Yukio Takimoto ,  Takatoshi Kato

IPC分类号： G01S1373

CPC分类号： G01S7/4017 ,  G01S7/02 ,  G01S13/04 ,  G01S13/426 ,  G01S2013/9321 ,  G01S2013/9353 ,  H01Q1/3233

摘要： A radar system includes a detection-control circuit for transmitting and receiving the beam of a millimeter-wave signal for detecting a relative position and a relative speed to a target, and a scanning unit for scanning the direction of the beam over a predetermined range. The state of the scanning unit can be switched between a resting state wherein scanning is stopped and the beam is directed towards the center of the scanning range while the detection-control circuit continues detection control, and a scanning state wherein the direction of the beam is scanned over a predetermined range.

摘要翻译： 雷达系统包括用于发送和接收用于检测与目标的相对位置和相对速度的毫米波信号的波束的检测控制电路和用于在预定范围上扫描波束的方向的扫描单元。 扫描单元的状态可以在扫描停止的静止状态和检测控制电路继续检测控制之间的光束朝向扫描范围的中心的位置之间切换，并且其中光束的方向为 在预定范围内扫描。

公开(公告)号：US06535677B1

公开(公告)日：2003-03-18

申请号：US09668347

申请日：2000-09-25

申请人： Shigeru Tanaka ,  Masayuki Nishimura ,  Shinji Ishikawa ,  Eisuke Sasaoka ,  Takatoshi Kato

发明人： Shigeru Tanaka ,  Masayuki Nishimura ,  Shinji Ishikawa ,  Eisuke Sasaoka ,  Takatoshi Kato

IPC分类号： G02B602

CPC分类号： G02B6/02242 ,  C03B37/0253 ,  C03B37/027 ,  C03B37/02745 ,  C03B37/032 ,  C03B2201/31 ,  C03B2203/19 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/06 ,  C03B2205/40 ,  C03B2205/72 ,  C03C25/1062 ,  C03C25/223 ,  G02B6/02247 ,  G02B6/02257 ,  G02B6/02271 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/0365 ,  G02B6/03666 ,  G02B6/29377

摘要： The present invention relates to a dispersion-managed optical fiber which can be manufactured easily and has a structure which enables the easy connection thereof with other optical fiber and the like. The dispersion-managed optical fiber is a silica-based optical fiber ensuring its single mode at a predetermined wavelength within a signal wavelength band, in which first portions each having a positive chromatic dispersion and second portions each having a negative chromatic dispersion are arranged alternately and adjacent to each other. In the dispersion-managed optical fiber, the dopant concentration is made uniform in the longitudinal direction and, corresponding to the above-mentioned first and second portions, the refractive index of a glass layer not doped with GeO2 as a dopant is adjusted or the residual stresses in glass layers are changed.

摘要翻译： 本发明涉及一种易于制造的色散管理光纤，并且具有能够容易地与其他光纤等连接的结构。 色散管理光纤是一种二氧化硅基光纤，其确保在信号波长带内的预定波长的单模，其中每个具有正色散的第一部分和每个具有负色散的第二部分交替排列， 相邻。 在色散管理的光纤中，掺杂剂浓度在纵向上均匀，并且对应于上述第一和第二部分，调整未掺杂有GeO 2作为掺杂剂的玻璃层的折射率或残余物 玻璃层的应力发生变化。