公开(公告)号：US3963631A

公开(公告)日：1976-06-15

申请号：US546780

申请日：1975-02-03

申请人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

发明人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

IPC分类号： C04B35/49 ,  C04B35/46 ,  C04B35/48 ,  C04B35/493 ,  C04B35/50 ,  C04B35/51 ,  H01L41/187 ,  H01L41/39

CPC分类号： C04B35/50 ,  C04B35/46 ,  C04B35/48 ,  C04B35/51

摘要： A process for preparing strengthened ferroelectric ceramics, which comprises sintering ceramic materials and then heat treating the sintered ceramics at a temperature from about 100.degree. to about 400.degree.C lower than the final sintering temperature of ceramics, for about 1 to about 60 hrs., and then cooling at a rate from about 300.degree. to about 10.degree.C per hour. Strengthened ferroelectric ceramics are obtained among the following ferroelectric ceramic compositions:I. pb([B.sub.1 ].sub.A Ta.sub.1.sub.-A)O.sub.3 --PbTiO.sub.3 --PbZrO.sub.3, where [B.sub.1 ] is Mg, Zn, Cd, Sn, Mn, Fe, Co, and Ni when A=1/3 and [B.sub.1 ] is Li and Cu when A=1/4,Ii. pb([B.sub.2 ].sub.B Ta.sub.1.sub.-B)O.sub.3 --Pb([B.sub.3 ].sub.C Ta.sub.1.sub.-C)O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3, where [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq.[B.sub.3 ], are Mg, Zn, Cd, Sn, Mn, Fe, Co and Ni when B and C=1/3, and [B.sub.2 ] and [B.sub.3 ], [B.sub.2 .noteq.[B.sub.3 ], are Li and Cu when B and C=1/4,Iii. pb([B.sub.1 ].sub.A Ta.sub.1.sub.-A)O.sub.3 PbTiO.sub.3 --PbZrO.sub.3 with MnO.sub.2, where [B.sub.1 ] is Mg, Zn, Cd, Sn, Fe, Co and Ni when A=1/3, and [B.sub.1 ] is Li and Cu when A=1/4, andIv. pb([B.sub.2 ].sub.B Ta.sub.1.sub.-B)O.sub.3 --Pb([B.sub.3 ].sub.C Ta.sub.1.sub.-C)O.sub.3 --PbTiO.sub.3 --PbZrO.sub.3 with MnO.sub.2, where [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq. [B.sub.3 ], are Mg, Zn, Cd, Sn, Fe, Co and Ni when B and C=1/3, and [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq.[B.sub.3 ], are Li and Cu when B and C=1/4.

摘要翻译： 一种制备强化铁电陶瓷的方法，包括烧结陶瓷材料，然后在比陶瓷的最终烧结温度低约100至约400℃的温度下对烧结陶瓷进行热处理约1至约60小时， 然后以约300至约10℃/小时的速率冷却。 在以下铁电陶瓷组合物中获得强化铁电陶瓷：

公开(公告)号：US4392970A

公开(公告)日：1983-07-12

申请号：US345530

申请日：1982-02-03

申请人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

发明人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

IPC分类号： C04B35/49 ,  C04B35/46 ,  C04B35/48 ,  C04B35/50 ,  C04B35/51 ,  H01B3/12 ,  H01G7/02 ,  H01L41/18 ,  H01L41/187

CPC分类号： H01G7/026 ,  C04B35/46 ,  C04B35/48 ,  C04B35/50 ,  C04B35/51 ,  H01L41/1876

摘要： Ceramic materials within particular ranges of the ternary system Pb(Sn.sub.1/3 Sb.sub.2/3) O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3 in solid solution form exhibit high planar coupling coefficient along with high dielectric constant, and are useful in electromechanical transducers. The ceramic materials are those within the area A, B, C, D, E and F of FIG. 2.

摘要翻译： 在固溶体形式的三元体系Pb（Sn1 / 3Sb2 / 3）O3-PbTiO3-PbZrO3的特定范围内的陶瓷材料表现出高平面耦合系数以及高介电常数，并且可用于机电换能器。 陶瓷材料是图1的区域A，B，C，D，E和F中的陶瓷材料。 2。

公开(公告)号：US3956150A

公开(公告)日：1976-05-11

申请号：US524940

申请日：1974-11-18

申请人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

发明人： Hiromu Ouchi ,  Masamitsu Nishida ,  Kazunori Numata

IPC分类号： C04B35/49 ,  C04B35/493 ,  H01L41/187 ,  H01L41/39 ,  C04B35/46 ,  C04B35/48

CPC分类号： H01L41/187 ,  C04B35/493

摘要： A process for preparing strengthened ferroelectric ceramics, which comprises heat treatment of sintered ceramics after sintering of ceramic materials at a temperature range from about 100.degree. to about 400.degree.C. lower than the final sintering temperature of ceramics, holding it for about 1 to about 60 hrs, and then cooling it at a cooling rate from about 300.degree. to about 10.degree.C. per hour. Strengthened ferroelectric ceramics are obtained among the following ferroelectric ceramic compositions:I. pb([B.sub.1 ].sub.A Nb.sub.1-A )O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3, where [B.sub.1 ] is Mg, Zn, Cd, Sn, Mn, Fe, Co and Ni when A=1/3 and [B.sub.1 ] is Li and Cu when A=1/4,Ii. pb([B.sub.2 ].sub.B Nb.sub.1-B )O.sub.3 -Pb([B.sub.3 ].sub.C Nb.sub.1-C )O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3, where [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq.[B.sub.3 ], are Mg, Zn, Cd, Sn, Mn, Fe, Co and Ni when B and C=1/3, and [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq.[B.sub.3 ], are Li and Cu when B and C=1.4,Iii. pb([B.sub.1 ].sub.A Nb.sub.1-A )O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3 with MnO.sub.2 where [B.sub.1 ] is Mg, Zn, Cd, Sn, Fe, Co and Ni when A=1/3, and [B.sub.1 ] is Li and Cu when A=1/4, andIv. pb([B.sub.2 ].sub.B Nb.sub.1-B )O.sub.3 -Pb([B.sub.3 ].sub.C Nb.sub.1-C )O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3 with MnO.sub.2, where [B.sub.2 ] and [B.sub.3 ], [B.sub.2 ].noteq.[B.sub.3 ], are Mg, Zn, Cd, Sn, Fe, Co and Ni when B and C=1/3, and [B.sub.2 ] and [B.sub.3 ], B.sub.2 .noteq.B.sub.3, are Li and Cu when B and C=1/4.

摘要翻译： 一种制备强化铁电陶瓷的方法，其包括在陶瓷材料烧结后在约100℃至约400℃的温度范围内对烧结陶瓷进行热处理，低于陶瓷的最终烧结温度，将其保持约1至约 60小时，然后以约300至约10℃/小时的冷却速率冷却。 在以下铁电陶瓷组合物中获得强化铁电陶瓷：

公开(公告)号：US06728494B2

公开(公告)日：2004-04-27

申请号：US09854527

申请日：2001-05-15

申请人： Kazunori Numata ,  Satoshi Furusawa ,  Susumu Morikura

发明人： Kazunori Numata ,  Satoshi Furusawa ,  Susumu Morikura

IPC分类号： H04B1004

CPC分类号： H04B10/50

摘要： A digital electrical signal Vin for transmission is supplied to a transistor Q12, a current compensation circuit 11, and a signal current source 13 to be band-compensated for generating a signal current I0. A predetermined current Id for a constant-current source 14 is subtracted from the signal current I0, and the result is an injection current Iin that drives an LED 15. The current Id is adjusted so that the injection current Iin becomes 0 at the low level. Thus, a signal-to-noise (S/N) ratio in waveform of light outputted from the LED 15 can be improved. Accordingly, the S/N ratio of the transmitted signal can be improved with band compensation.

摘要翻译： 用于传输的数字电信号Vin被提供给晶体管Q12，电流补偿电路11和信号电流源13进行带宽补偿以产生信号电流I0。 从信号电流I0减去恒定电流源14的预定电流Id，结果是驱动LED 15的注入电流Iin。调节电流Id，使得注入电流Iin在低电平为0 。 因此，可以提高从LED 15输出的光的波形中的信噪比（S / N）比。 因此，可以通过频带补偿来提高发送信号的S / N比。

公开(公告)号：US07212745B2

公开(公告)日：2007-05-01

申请号：US09988706

申请日：2001-11-20

申请人： Kazunori Numata ,  Satoshi Furusawa ,  Susumu Morikura

发明人： Kazunori Numata ,  Satoshi Furusawa ,  Susumu Morikura

IPC分类号： H04B10/00 ,  H04B10/12

CPC分类号： G02B6/4204 ,  G02B6/02 ,  G02B6/02033 ,  G02B6/14 ,  G02B6/268 ,  G02B6/32 ,  G02B6/421 ,  H04B10/2581

摘要： In an optical transmission system, a lens converges an optical signal outputted from a light emission element. The optical signal having passed .through the lens enters a multi-mode fiber (MMF). A vertex of the lens and an input plane of the MMF are at a distance. The distance is set to a value which is not equal to the distance from the vertex to a focal point of the lens. As a result, a lowcost optical transmission system can be provided in which the influence of mode dispersion is reduced.

摘要翻译： 在光传输系统中，透镜会聚从发光元件输出的光信号。 通过透镜的光信号进入多模光纤（MMF）。 透镜的顶点和MMF的输入平面距离一定。 该距离被设定为不等于从顶点到透镜焦点的距离的值。 结果，可以提供降低模式色散影响的低成本光传输系统。