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    • 71. 发明授权
    • Optical pickup device
    • 光学拾取装置
    • US06730896B1
    • 2004-05-04
    • US09577905
    • 2000-05-24
    • Eiji Yamada
    • Eiji Yamada
    • G02B900
    • G11B7/13927G02B27/0068G11B7/1374G11B2007/13727
    • In an optical pickup device, an objective lens unit includes a first lens, a second lens for converging a light beam which passed through the first lens on an information recording layer of a recording medium, and a second-lens-driving-use actuator for adjusting the distance between the first and second lenses. The second lens has a reflecting section for reflecting an outer part of the light beam which passed through the first lens and reached the second lens. Moreover, the optical pickup device includes a condenser lens, a cylindrical lens and a light receiving element for detecting a reflected light beam reflected by the reflecting section, and a control device for detecting the distance between the first and second lenses according to the result of detection and for controlling the second-lens-driving-use actuator according to the result of detection. With this structure, the occurrence of spherical aberration due to an error in the thickness of a cover glass of the recording medium and variations in the thickness of the objective lens is limited.
    • 在光学拾取装置中,物镜单元包括第一透镜,用于将通过第一透镜的光束会聚在记录介质的信息记录层上的第二透镜,以及第二透镜驱动用致动器 调整第一和第二透镜之间的距离。 第二透镜具有用于反射穿过第一透镜并到达第二透镜的光束的外部的反射部分。 此外,光拾取装置包括聚光透镜,柱面透镜和用于检测由反射部反射的反射光束的光接收元件,以及用于根据第一和第二透镜的结果来检测第一和第二透镜之间的距离的控制装置 检测和根据检测结果控制第二透镜驱动用致动器。 利用这种结构,由于记录介质的盖玻片的厚度误差和物镜的厚度的变化引起的球面像差的发生受到限制。
    • 72. 发明授权
    • Operating circuit for galois field
    • 伽罗瓦域工作电路
    • US5414719A
    • 1995-05-09
    • US46853
    • 1993-04-15
    • Tetsuo IwakiToshihisa TanakaEiji Yamada
    • Tetsuo IwakiToshihisa TanakaEiji Yamada
    • G06F7/72G06F11/10H03M13/01H03M13/15
    • G06F7/724G06F11/10H03M13/01H03M13/151
    • An operating circuit of a Galois Field for executing an operation of the Galois field efficiently and rapidly includes an operating circuit (11) for receiving two elements of a Galois field, for performing an addition or a multiplication of the two elements, and for outputting a first operational result, an operating circuit (12) for receiving another two elements of the Galois field, for performing an addition or a multiplication of another two elements, and for outputting a second operational result, an operating circuit (13) for performing an addition of the first operational result and the second operational result on the Galois field, and for outputting a third operational result, a multiplexer (14) for selecting and one of the first operational result and the third operational result, and for outputting a selected result, a multiplexer (15) for selecting any one of the second operational result and the third operational result, and for outputting the selected result, a flag-decision circuit (18) for determining the first operational result and the second operational result as well as the third operational result.
    • 用于高效地和快速地执行Galois场的操作的伽罗瓦域的操作电路包括用于接收Galois域的两个元件的操作电路(11),用于执行两个元件的相加或相乘,并且用于输出 第一操作结果,用于接收伽罗瓦域的另外两个元件的操作电路(12),用于执行另外两个元件的相加或乘法,并且用于输出第二操作结果;用于执行加法的操作电路(13) 的第一操作结果和第二操作结果,并且用于输出第三操作结果;多路复用器(14),用于选择第一操作结果和第一操作结果和第三操作结果之一,并且用于输出所选择的结果; 用于选择第二操作结果和第三操作结果中的任何一个的多路复用器(15),并且用于输出所选择的结果,标志判定 离子电路(18),用于确定第一操作结果和第二操作结果以及第三操作结果。
    • 76. 发明申请
    • ROTOR FOR ROTARY ELECTRIC MACHINE, AND ROTARY ELECTRIC MACHINE PROVIDED WITH THE ROTOR
    • 旋转电机转子,旋转电机,旋转电机
    • US20140354091A1
    • 2014-12-04
    • US14360811
    • 2011-11-28
    • Eiji Yamada
    • Eiji Yamada
    • H02K11/04H02K9/19
    • H02K11/044H02K9/19H02K11/042H02K19/12H02K19/28
    • In a rotor for a rotary electric machine including an electronic device, such as a diode, around which a coil is wound and which is connected to the coil via a lead wire, poor connection between the coil and the electronic device caused by a centrifugal force is prevented. A rotary electric machine includes: a shaft that is rotatably supported; a rotor core that is fixed to the shaft and around which the coil is wound; and the electronic device that is provided non-parallel to the shaft so as to rotate together with the rotor core, that has a main body having a rectifying function and a terminal section electrically connected to the main body, and in which the lead wire extending from the coil is connected to the terminal section. A connection section between the lead wire and the terminal section of the electronic device is provided on an inner diameter side of the main body of the electronic device in a radial direction of the rotor core.
    • 在用于旋转电机的转子中,包括诸如二极管的电子装置,线圈缠绕在该电子装置上,并通过引线与线圈相连,由离心力引起的线圈与电子装置之间的连接不良 被阻止 旋转电机包括:可旋转地支撑的轴; 转子芯,其固定在所述轴上并且所述线圈绕过所述转子芯; 所述电子设备与所述轴不平行地设置成与所述转子铁芯一起旋转,所述转子铁心具有具有整流功能的主体和与所述主体电连接的端子部分,所述导线延伸 从线圈连接到终端部分。 电子设备的引线和端子部之间的连接部分沿着转子芯的径向方向设置在电子设备的主体的内径侧上。
    • 77. 发明授权
    • Nitride semiconductor light-emitting element and method for producing same
    • 氮化物半导体发光元件及其制造方法
    • US08742440B2
    • 2014-06-03
    • US13579174
    • 2011-02-17
    • Mayuko FudetaEiji Yamada
    • Mayuko FudetaEiji Yamada
    • H01L33/00H01L33/12H01L33/20
    • H01L33/32H01L33/007H01L33/0075H01L33/025H01L33/04H01L33/12H01L33/20
    • Disclosed is a nitride semiconductor light-emitting element comprising a p-type nitride semiconductor layer 1, a p-type nitride semiconductor layer 2, and a p-type nitride semiconductor layer 3 placed in order above a nitride semiconductor active layer, wherein the p-type nitride semiconductor layer 1 and p-type nitride semiconductor layer 2 each contain Al, the average Al composition of the p-type nitride semiconductor layer 1 is equivalent to the average Al composition of the p-type nitride semiconductor layer 2, the p-type nitride semiconductor layer 3 has a smaller band gap than the p-type nitride semiconductor layer 2, the p-type impurity concentration of the p-type nitride semiconductor layer 2 and the p-type impurity concentration of the p-type nitride semiconductor layer 3 are both lower than the p-type impurity concentration of the p-type nitride semiconductor layer 1, and a method for producing same.
    • 公开了一种氮化物半导体发光元件,其包括在氮化物半导体有源层上顺序放置的p型氮化物半导体层1,p型氮化物半导体层2和p型氮化物半导体层3,其中p p型氮化物半导体层1和p型氮化物半导体层2各自含有Al,p型氮化物半导体层1的平均Al组成等价于p型氮化物半导体层2的平均Al组成,p 型氮化物半导体层3具有比p型氮化物半导体层2更小的带隙,p型氮化物半导体层2的p型杂质浓度和p型氮化物半导体的p型杂质浓度 层3都低于p型氮化物半导体层1的p型杂质浓度,及其制造方法。