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    • 3. 发明授权
    • Pinhole video camera
    • 针孔摄像机
    • US06335759B1
    • 2002-01-01
    • US08961159
    • 1997-10-30
    • Nobuo Harada
    • Nobuo Harada
    • H04N5225
    • H04N5/2251H04N5/2254
    • A pinhole camera in which a conical lens with an apical angle of 91.13° to 91.15° is used to correct the fisheye characteristics, and ⅓-inch fixed charged coupled device and a pinhole with a diameter of 0.8 mm are adopted to obtain clear image of a subject in an range from a point closely adjacent to the camera to a point far from the camera with strong contrast. The pinhole video camera comprising: a printed circuit board to which ⅓-inch fixed coupled charged device is attached; a holder fixed so as to cover a front surface of the coupled charged device of the printed circuit board; a lens holder having a pinhole with a diameter of 0.8 mm; a conical convex lens with an apical angle of 91.13° to 91.15°, the conical convex lens fixed on a rear face side of the pinhole of the lens holder.
    • 使用针尖为91.13〜91.15的锥形透镜来校正鱼眼特性的针孔照相机,采用1/3英寸固定电荷耦合器件和直径为0.8mm的针孔,以获得被摄体的清晰图像 在从相机附近的点到远离相机的点的强烈对比度的范围内。 所述针孔摄像机包括:附接有1/3英寸固定耦合充电装置的印刷电路板; 固定以覆盖印刷电路板的耦合充电装置的前表面的保持器; 具有直径为0.8mm的针孔的透镜架; 顶角为91.13至91.15的锥形凸透镜,固定在透镜架的针孔背面侧的锥形凸透镜
    • 4. 发明授权
    • 3-amino-3-carbamoyloxyalkylacrylic acid intermediates to dihydropyridines
    • 3-氨基-3-氨基甲酰氧基烷基丙烯酸中间体转化为二氢吡啶
    • US4739106A
    • 1988-04-19
    • US865654
    • 1986-05-16
    • Tetsuji MiyanoKunio SuzukiNobuo Harada
    • Tetsuji MiyanoKunio SuzukiNobuo Harada
    • C07D211/90C07D295/205C07D211/14C07C125/073C07D209/08C07D213/75
    • C07D295/205C07D211/90
    • A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
    • 一种制备由以下通式表示的2-氨基甲酰氧基烷基-1,4-二氢吡啶衍生物的方法:(I),其包括:(a)使由以下通式表示的3-氨基-3-氨基甲酰氧基烷基丙烯酸衍生物: (II)与通式(III)表示的亚苄基化合物反应:(b)使通式II的3-氨基-3-氨基甲酰氧基烷基丙烯酸衍生物与通式 (IV)和由通式R4-CO-CH2-COOR2(V)表示的β-酮酯化合物(c)(c)使由以下通式表示的3-氨基甲酰氧基烷基丙酸衍生物反应: (VI)与通式Ⅲ的亚苄基化合物和氨或其盐; 或(d)使通式VI的3-氨基甲酰基烷基丙酸衍生物与通式IV的醛化合物,通式V的β-酮酯化合物和氨或其盐反应。