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    • 1. 发明授权
    • Optical telephone using optical modulator
    • 光电话使用光调制器
    • US5357362A
    • 1994-10-18
    • US59467
    • 1993-05-07
    • Yuji AzumaYoshihiro ShibataShinji TamuraNobuo KuwakiNobuhiro IkawaAkira FukudaAkio Kuwahara
    • Yuji AzumaYoshihiro ShibataShinji TamuraNobuo KuwakiNobuhiro IkawaAkira FukudaAkio Kuwahara
    • G02B6/28G02B26/02H04B10/155H04B10/213H04B10/12G02B6/26H04B10/04
    • H04B10/505G02B26/02G02B6/2852
    • An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center. An optical telephone uses an optical modulator including an optical fiber having a U-shaped bending region and a transducer for vibrating one straight portion of the optical fiber.
    • 一种光学调制方法,其在使用光纤的光传输路径中可操作,其中通过将所述光纤的一部分弯曲成具有预定弯曲宽度的U形形成光纤弯曲区域。 弯曲宽度设定点对应于表示在所述光纤弯曲区域中传播的光的插入损耗相对于其弯曲宽度的依赖比的特性曲线的预定倾斜部分,所述特征曲线的所述预定倾斜部分为 位于其预定的最大和最小部分之间。 通过以相对于弯曲宽度设定点为中心的要发送的信号调整光纤弯曲区域的弯曲宽度,通过使用要发送的信号来进行在光纤中传播的光的强度调制。 光电话机使用包括具有U形弯曲区域的光纤的光学调制器和用于振动光纤的一个直线部分的换能器。
    • 6. 发明申请
    • MONOAZO METAL COMPLEX, AZO-TYPE PIGMENT DISPERSANT, AND PIGMENT COMPOSITION COMPRISING THE AZO-TYPE PIGMENT DISPERSANT
    • MONOAZO金属复合物,AZO型颜料分散剂和包含AZO型颜料分散剂的颜料组合物
    • US20100120951A1
    • 2010-05-13
    • US12450850
    • 2008-04-22
    • Shinjirou TakahashiAkio Kuwahara
    • Shinjirou TakahashiAkio Kuwahara
    • C08K5/3462C09B45/00
    • C09B45/18C09B45/14C09B45/20C09B45/22C09B63/005C09B67/0041C09B67/0086C09B69/045G02B5/223
    • [Problems] To microparticulate a yellow pigment having a structure derived from barbituric acid (e.g., C. I. Pigment Yellow 150) and increase the concentration of the pigment in a pigment composition comprising the pigment without increasing the viscosity of the composition after dispersion of the pigment, flocculation or precipitation in the composition, or increasing the viscosity of the composition over time; and to provide a stable pigment composition which can be used as a coloring agent for a color filter resist or a ink-jet ink. [Means for Solving Problems] Disclosed is a monoazo metal complex represented by the formula (1) wherein R1 represents a hydrogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a chlorine atom, a bromine atom or a nitro group; M represents a hydrogen atom, a sodium, a potassium, a magnesium, a calcium, a barium or an aluminum; Mn+ represents a n-valent cation; Metal represents Ni, Fe, Cu, Co or Al; m represents an integer of 1 or 2; and n represents an integer of 1, 2 or 3.
    • [问题]为了使具有来源于巴比妥酸的结构的黄色颜料(例如,CI颜料黄150)微粒化,并且增加颜料在颜料组合物中的浓度,而不增加颜料分散后的组合物的粘度, 组合物中的絮凝或沉淀,或随时间增加组合物的粘度; 并提供可用作滤色器抗蚀剂或喷墨油墨着色剂的稳定颜料组合物。 [解决问题的方法]公开了式(1)表示的单偶氮金属络合物,其中R1表示氢原子,C1-C4烷基,C1-C4烷氧基,氯原子,溴原子或硝基 组; M表示氢原子,钠,钾,镁,钙,钡或铝; Mn +表示n价阳离子; 金属表示Ni,Fe,Cu,Co或Al; m表示1或2的整数; n表示1,2或3的整数。