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    • 6. 发明授权
    • Communication sheet structure
    • 通讯单结构
    • US08570240B2
    • 2013-10-29
    • US12996839
    • 2008-06-27
    • Akira TanakaMachiko OouchidaHiroyuki Mori
    • Akira TanakaMachiko OouchidaHiroyuki Mori
    • H01Q1/36
    • H04B13/00
    • A communication sheet structure for transmitting electromagnetic waves, and thereby performing communication, is characterized in that the communication sheet structure includes a planar base material with a relative dielectric constant at a frequency of from 800 MHz to 10 GHz of from 1.0 to 15.0, and one side of the base material includes conductor A existing portion and non-existing portion, and the other side of the base material includes a conductor B existing over 90% or more thereof. The communication sheet structure enables communication in two dimensions, and the communication sheet structure is extremely excellent in communication performances.
    • 用于传送电磁波,从而进行通信的通信片结构的特征在于,通信片结构包括平面基底材料,其相对介电常数在800MHz至10GHz的频率范围为1.0至15.0,一个 基体材料的一侧包括导体A存在部分和不存在部分,并且基材的另一侧包括存在于其中90%以上的导体B. 通信片结构使得能够在二维方面进行通信,并且通信片结构在通信性能方面非常优异。
    • 8. 发明授权
    • Light emitting device
    • 发光装置
    • US08410473B2
    • 2013-04-02
    • US13291176
    • 2011-11-08
    • Akira Tanaka
    • Akira Tanaka
    • H01L29/06
    • H01L33/06B82Y20/00H01L33/025H01L33/32H01S5/309H01S5/34333
    • A light emitting device includes: a first layer made of a semiconductor of a first conductivity type; a second layer made of a semiconductor of a second conductivity type; an active layer including a multiple quantum well provided between the first layer and the second layer, impurity concentration of the first conductivity type in each barrier layer of the multiple quantum well having a generally flat distribution or increasing toward the second layer, average of the impurity concentration in the barrier layer on the second layer side as viewed from each well layer of the multiple quantum well being equal to or greater than average of the impurity concentration in the barrier layer on the first layer side, and average of the impurity concentration in the barrier layer nearest to the second layer being higher than average of the impurity concentration in the barrier layer nearest to the first layer.
    • 发光器件包括:由第一导电类型的半导体制成的第一层; 由第二导电类型的半导体制成的第二层; 包括设置在第一层和第二层之间的多量子阱的有源层,多量子阱的每个势垒层中的第一导电类型的杂质浓度具有大致平坦的分布或朝着第二层增加,杂质的平均值 从多量子阱的各阱层观察的第二层侧的阻挡层的浓度等于或大于第一层侧的阻挡层中的杂质浓度的平均值,以及 最靠近第二层的阻挡层高于最靠近第一层的势垒层中的杂质浓度的平均值。