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1. 发明授权

US5739943A Polarization control unit 失效
标题翻译：极化控制单元
公开(公告)号：US5739943A
公开(公告)日：1998-04-14
申请号：US697446
申请日：1996-08-23
申请人： Shigeru Ohshima , Tazuko Tomioka , Mitsuko Nakamura , Senji Shimanuki , Manish Sharma , Hiroyuki Ibe , Hitoshi Takahira , Shu Yamamoto
发明人： Shigeru Ohshima , Tazuko Tomioka , Mitsuko Nakamura , Senji Shimanuki , Manish Sharma , Hiroyuki Ibe , Hitoshi Takahira , Shu Yamamoto
IPC分类号： G02F1/01 , G02F1/03 , G02F1/035 , G02F1/09 , H04B10/135
CPC分类号： H04B10/532 , G02F1/0311 , G02F1/0353 , G02F1/093 , G02F2001/0139
摘要： Light beams emitted from an optical fiber are converted into parallel light beams by a lens, and then allowed to pass through a Faraday device, followed by being converged to an incident end of the optical fiber by a lens. The Faraday device is applied with a magnetic field in a direction of the optical axis thereof from a coil. Moreover, the Faraday device is applied with a magnetic field in a direction perpendicular to the optical axis by a pair of magnets. When an electric current flowing in a coil 74 is changed from I to -I, the direction of a synthesized magnetic field can be rotated. Therefore, by arbitrarily changing the electric current flowing in the coil, polarization of transmission light can be controlled.
摘要翻译：从光纤射出的光束被透镜转换为平行光束，然后通过法拉第装置，然后通过透镜会聚到光纤的入射端。法拉第装置从线圈沿其光轴的方向施加磁场。此外，法拉第装置通过一对磁体在垂直于光轴的方向上施加磁场。当在线圈74中流动的电流从I变为-I时，合成磁场的方向可以旋转。因此，通过任意地改变在线圈中流动的电流，可以控制透射光的极化。

2. 发明授权

US4998256A Semiconductor laser apparatus 失效
标题翻译：半导体激光装置
公开(公告)号：US4998256A
公开(公告)日：1991-03-05
申请号：US501045
申请日：1990-03-29
申请人： Shigeru Ohshima , Mitsuko Nakamura
发明人： Shigeru Ohshima , Mitsuko Nakamura
IPC分类号： G02B6/34 , G02B6/42 , H01S5/0687
CPC分类号： H01S5/0687 , G02B6/4246 , G02B6/29358 , G02B6/4207
摘要： In a semiconductor laser apparatus of the invention, a laser beam emitted from a semiconductor laser is collimated by an optical leans, and is subsequently split by a beam splitter in two directions. One split laser beam component is focused on a first photodetector through an optical lens. The other laser beam component is incident on a Fabry-Perot resonator, and is changed in intensity thereby. The laser beam component is then focused on a photodetector through an optical lens. The Fabry-Perot resonator is integrally designed such that dielectric multilayer films are respectively deposited on both the end faces of a crystalized quartz bulk, which is shaped into a columnar shape extending in the C-axis direction, so as to form a pair of reflect filters. Since the bulk is made of crystalized quartz it is not easily influenced by changes in temperature.
摘要翻译：在本发明的半导体激光装置中，从半导体激光器发射的激光束被光学折射准直，并且随后在两个方向上被分束器分开。一个分割的激光束分量通过光学透镜聚焦在第一光电检测器上。另一个激光束分量入射在法布里 - 珀罗（Fabry-Perot）谐振器上，从而改变其强度。然后将激光束分量通过光学透镜聚焦在光电检测器上。法布里 - 珀罗谐振器被一体地设计成使得电介质多层膜分别沉积在结晶化的石英体的两个端面上，该结晶化的石英体被成形为在C轴方向上延伸的柱状，以形成一对反射过滤器。由于体积是由结晶石英制成，不容易受温度变化的影响。

3. 发明授权

US4046888A Methods for catalytic reduction of nitrogen oxides 失效
标题翻译：催化还原氮氧化物的方法
公开(公告)号：US4046888A
公开(公告)日：1977-09-06
申请号：US665946
申请日：1976-03-11
申请人： Tsugio Maeshima , Eiichiroh Nishikawa , Mitsuko Nakamura
发明人： Tsugio Maeshima , Eiichiroh Nishikawa , Mitsuko Nakamura
IPC分类号： B01D53/94 , B01D53/86 , B01J29/06 , B01D53/34
CPC分类号： B01D53/8628 , B01D53/8625
摘要： Process for removing nitrogen oxides from gaseous mixtures comprising the same. Ammonia in an amount excessive over the stoichiometric amount necessary for reducing the nitrogen oxides is introduced into a reaction zone containing a catalyst. Then, ammonia in a minimum amount necessary for reduction of the nitrogen oxides is introduced into the reaction zone.
摘要翻译：从含有它们的气态混合物中除去氮氧化物的方法。将含量超过用于还原氮氧化物所需的化学计量的量的氨引入到含有催化剂的反应区中。然后，将还原氮氧化物所需的最小量的氨引入反应区。

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