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    • 72. 发明授权
    • Optical transmission line, method of making optical transmission line, and optical transmission system
    • 光传输线,制造光传输线路的方法和光传输系统
    • US07085040B2
    • 2006-08-01
    • US10834189
    • 2004-04-29
    • Toshiaki OkunoMasayuki Nishimura
    • Toshiaki OkunoMasayuki Nishimura
    • H04B10/13H04B10/17
    • H01S3/22H01S3/06754H01S3/094011H01S3/107H01S3/30H01S3/302
    • The present invention relates to an optical transmission line enabling Raman amplification of an optical signal when pumping light is supplied thereto, a method of making this optical transmission line, and an optical transmission system using this optical transmission line. This optical transmission line is an optical transmission line enabling Raman amplification of an optical signal when pumping light is supplied thereto, wherein a region yielding the maximum value of Raman gain coefficient is separated from an end portion where the pumping light is supplied by a predetermined distance along a direction in which the pumping light advances. This optical transmission line can restrain the power of optical signal, at any point of the optical transmission line, from increasing to such an extent that optical Kerr effects occurs remarkably and from decreasing to such an extent that the SN ratio deteriorates greatly, and can fully secure the power of optical signal at the end point of the optical transmission line.
    • 本发明涉及一种能够提供泵浦光时能够进行光信号的拉曼放大的光传输线路,制造该光传输线路的方法以及使用该光传输线路的光传输系统。 该光传输线是当向其提供泵浦光时能够对光信号进行拉曼放大的光传输线,其中产生拉曼增益系数的最大值的区域与泵送光被提供预定距离的端部分离 沿着泵浦光前进的方向。 该光传输线可以抑制在光传输线的任何点的光信号的功率增加到光学克尔效应显着地发生并且从降低到使SN比大大降低的程度的程度,并且可以完全 在光传输线路的终点处确保光信号的功率。
    • 74. 发明授权
    • Variable dispersion compensator and optical transmission system
    • 可变色散补偿器和光传输系统
    • US06892003B2
    • 2005-05-10
    • US10114321
    • 2002-04-03
    • Makoto KatayamaToshiaki OkunoMasayuki NishimuraTomomi SanoMasakazu ShigeharaHiroshi SuganumaToru IwashimaTomohiko Kanie
    • Makoto KatayamaToshiaki OkunoMasayuki NishimuraTomomi SanoMasakazu ShigeharaHiroshi SuganumaToru IwashimaTomohiko Kanie
    • H04B10/18G02B6/26G02B6/35H04J14/02
    • H04B10/25133
    • An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit 2, and each frequency component of the optical signal that is split is reflected by the corresponding reflective mirror 30 included in reflective mirror group 3 to apply a predetermined phase shift to the respective frequency components Each reflected frequency component is then combined using optical combining/splitting unit 2, to give dispersion compensated optical signal Furthermore, in regards to reflective mirror group 3, which is used to apply phase shift to each frequency component of an optical signal, each of the respective plurality of reflective mirrors 30 is made a movable mirror having a movable reflection position that reflects the frequency components. Through this, dispersion that develops in an optical signal may be compensated with favorable controllability and high accuracy. Therefore, the precision and controllability of dispersion compensation will become superior, and realized is a variable dispersion compensator having a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator,
    • 要成为色散补偿的对象的光信号被光学合成/分离单元2分离,并且被分离的光信号的每个频率分量被包括在反射镜组3中的相应的反射镜30反射到 对相应的频率分量施加预定的相移。然后使用光学合成/分离单元2组合每个反射频率分量,以产生色散补偿的光信号。此外,关于反射镜组3,其用于将相移施加到每个 光信号的频率分量,各个反射镜30中的每一个被制成具有反映频率分量的可移动反射位置的可移动反射镜。 由此,可以以良好的可控性和高精度补偿在光信号中产生的色散。 因此,色散补偿的精度和可控性将变得更好,并且实现了具有小型化光电路的可变色散补偿器和包括这种可变色散补偿器的光传输系统,
    • 75. 发明授权
    • Optical transmission line, method of making optical transmission line, and optical transmission system
    • 光传输线,制造光传输线路的方法和光传输系统
    • US06795235B1
    • 2004-09-21
    • US09635900
    • 2000-08-11
    • Toshiaki OkunoMasayuki Nishimura
    • Toshiaki OkunoMasayuki Nishimura
    • H01S330
    • H01S3/22H01S3/06754H01S3/094011H01S3/107H01S3/30H01S3/302
    • The present invention relates to an optical transmission line enabling Raman amplification of an optical signal when pumping light is supplied thereto, a method of making this optical transmission line, and an optical transmission system using this optical transmission line. This optical transmission line is an optical transmission line enabling Raman amplification of an optical signal when pumping light is supplied thereto, wherein a region yielding the maximum value of Raman gain coefficient is separated from an end portion where the pumping light is supplied by a predetermined distance along a direction in which the pumping light advances. This optical transmission line can restrain the power of optical signal, at any point of the optical transmission line, from increasing to such an extent that optical Kerr effects occurs remarkably and from decreasing to such an extent that the SN ratio deteriorates greatly, and can fully secure the power of optical signal at the end point of the optical transmission line.
    • 本发明涉及一种能够提供泵浦光时能够进行光信号的拉曼放大的光传输线路,制造该光传输线路的方法以及使用该光传输线路的光传输系统。 该光传输线是当向其提供泵浦光时能够对光信号进行拉曼放大的光传输线,其中产生拉曼增益系数的最大值的区域与泵送光被提供预定距离的端部分离 沿着泵浦光前进的方向。 该光传输线可以抑制在光传输线的任何点的光信号的功率增加到光学克尔效应显着地发生并且从降低到使SN比大大降低的程度的程度,并且可以完全 在光传输线路的终点处确保光信号的功率。
    • 76. 发明授权
    • Optical fiber composite and optical fiber cable and production method thereof
    • 光纤复合光纤电缆及其制造方法
    • US06769822B2
    • 2004-08-03
    • US10041585
    • 2002-01-10
    • Masayuki NishimuraShigeru Tanaka
    • Masayuki NishimuraShigeru Tanaka
    • G02B6255
    • G02B6/02247G02B6/02004G02B6/02261G02B6/02266G02B6/29377H04B10/25253
    • An optical fiber composite that can easily have a desired mean transmission property as a whole even after a length of optical fiber is cut off from one end or both ends, a cable comprising the composites, and methods for producing the composite and cable. An optical fiber composite 10 is produced by splicing a first optical fiber 11, a second optical fiber 12, and a third optical fiber 13 in this order. The first optical fiber 11 and the third optical fiber 13 each have a first chromatic dispersion, D1, at the wavelength of a signal-carrying lightwave. The second optical fiber 12 has a second chromatic dispersion, D2, at the wavelength of the signal-carrying lightwave. The third optical fiber has a length, L3, shorter than the length, L1, of the first optical fiber. It is desirable that the ratio L3/L1 be at most 0.1.
    • 即使从一端或两端切断长度的光纤,也可以容易地具有期望的平均透射特性的光纤复合体,包含该复合体的电缆以及复合电缆的制造方法。 通过按顺序拼接第一光纤11,第二光纤12和第三光纤13来制造光纤复合体10。 第一光纤11和第三光纤13在信号携带光波长的波长处都具有第一色散D1。 第二光纤12在信号携带光波长的波长处具有第二色散D2。 第三光纤具有比第一光纤的长度L1短的长度L3。 理想的是,比率L3 / L1为0.1以下。
    • 78. 发明授权
    • Apparatus for detecting gear positions of automobile transmission
    • 用于检测汽车变速器档位的装置
    • US06339325B1
    • 2002-01-15
    • US09465780
    • 1999-12-17
    • Katsushi OdaMasayuki Nishimura
    • Katsushi OdaMasayuki Nishimura
    • G01B714
    • F16H59/70H01H36/008
    • A gear position detecting apparatus includes three magnets fixed to a transmission housing for generating magnetism and three hole elements fixed to the transmission housing for detecting magnetism generated from the magnets. A magnetism shielding plate is provided between the magnets and the hall elements. The magnetism shielding plate is slidably and rotatably movable according to a shift pattern of a shift lever and has a plurality of holes and a cut-out portion. The magnetism generated from the magnets is permitted or forbidden to pass through these holes or the cut-out portion according to the movement of the magnetism shielding plate which is moved by the shift lever. The hall elements output an ON-signal when the magnetism is permitted to pass through and an OFF-signal when the magnetism is forbidden to pass through. As a result, a plurality of combinations of binary signals are produced corresponding to gear positions.
    • 齿轮位置检测装置包括固定到用于产生磁性的变速器壳体的三个磁体和固定到变速器壳体上的三个孔元件,用于检测从磁体产生的磁性。 在磁铁和霍尔元件之间设有磁屏蔽板。 磁屏蔽板可根据变速杆的换挡图形而可滑动地且可旋转地移动,并且具有多个孔和切口部分。 根据由变速杆移动的磁屏蔽板的移动,允许或禁止从磁体产生的磁通过这些孔或切口部分。 当磁性被允许通过时,霍尔元件输出ON信号,当磁性被禁止通过时,霍尔元件输出OFF信号。 结果,对应于档位产生多个二进制信号的组合。
    • 79. 发明授权
    • Cooling apparatus for outboard motor
    • 舷外马达冷却装置
    • US5904605A
    • 1999-05-18
    • US986725
    • 1997-12-08
    • Naoki KawasakiMasayuki Nishimura
    • Naoki KawasakiMasayuki Nishimura
    • B63H20/28F01N3/02F01N3/04F01N13/10F01P3/02F01P3/12F01P3/20F01P7/16F02B61/04F02B75/02F02B75/18F02B75/20B63H20/24
    • F02B61/045F01N3/046F01P3/202F02B75/20F01P2025/31F01P2060/16F02B2075/027F02B2075/1816Y02T10/20
    • A cooling apparatus for an outboard motor which is provided with a water-cooled engine in a vertical alignment in which a crank shaft is vertically disposed, the engine being composed of a cylinder block, a cylinder head and an exhaust manifold into which water jackets are formed respectively and the water jackets are supplied with cooling water from a water pump disposed below the engine in a state mounted to a hull, the cooling apparatus comprising a cylinder cooling-water passage for supplying cooling water from the water pump to the water jackets of the cylinder block and said cylinder head, an exhaust cooling-water passage for supplying cooling water from the water pump to the water jacket of the exhaust manifold, the cylinder cooling-water passage and the exhaust cooling-water passage being independently disposed from each other and being joined together at downstream portions thereof, a thermostat provided for the water jacket of the cylinder block and a sensor for detecting a temperature of a cylinder surface provided for the water jacket of the cylinder block at a portion between the water jacket thereof and the thermostat.
    • 一种用于舷外马达的冷却装置,其具有垂直配置的水冷发动机,其中曲轴竖直设置,所述发动机由气缸体,气缸盖和排气歧管组成,其中水套是 并且在安装在船体上的状态下,将水套从设置在发动机下方的水泵供给冷却水,该冷却装置包括:汽缸冷却水通道,用于将冷却水从水泵供给到水套 气缸体和气缸盖,用于将冷却水从水泵供给到排气歧管的水套的排气冷却水通道,气缸冷却水通道和排气冷却水通道彼此独立地设置 并且在其下游部分处连接在一起,设置用于气缸体的水套的恒温器和用于检测气缸体的传感器 在其水套和恒温器之间的部分处设置用于气缸体的水套的气缸表面的温度。