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    • 2. 发明申请
    • METHOD FOR PRODUCING OPTICALLY ACTIVE a-IONONE
    • 用于生产光学活性α-离子的方法
    • US20110118500A1
    • 2011-05-19
    • US13012199
    • 2011-01-24
    • Tetsuya YamamotoKenji YagiKenya Ishida
    • Tetsuya YamamotoKenji YagiKenya Ishida
    • C07C69/78C07C69/533C07C69/63C07C69/24C07C69/708
    • C12P7/26A23L2/56A23L27/204A61K8/37A61Q11/00A61Q13/00C07B53/00C07B2200/07C07C403/08C07C403/12C07C403/14C07C2601/16C12G3/06C12P41/004
    • Provided that a method for inexpensively producing optically active α-ionone with a high yield and a high asymmetric yield and with good workability in a short process, and a perfume composition comprising the optically active α-ionone obtained by the aforementioned method. A method for producing optically active α-ionone, comprising allowing α-ionone as a mixture of optical isomers to react with an esterification agent, and hydrolyzing the obtained α-ionone enol ester; a method for producing optically active α-ionone comprising subjecting α-ionone as a mixture of optical isomers to an asymmetric reduction, allowing the obtained optically active α-ionol to react with an esterification agent to give an optically active α-ionol ester, hydrolyzing the obtained optically active α-ionol ester after purification as necessary, and then oxidizing the obtained optically active α-ionol; and a perfume composition comprising thus obtained optically active α-ionone.
    • 本发明提供了一种低成本地生产光学活性α-紫罗兰酮的方法,其具有高产率和高不对称产率,并且在短时间内具有良好的可加工性,以及包含通过上述方法获得的光学活性α-紫罗兰酮的香料组合物。 一种光学活性α-紫罗兰酮的制造方法,其特征在于,使作为旋光异构体的混合物的α-紫罗烯酮与酯化反应,水解得到的α-紫罗烯酮烯醇酯; 一种光学活性α-紫罗兰酮的制造方法,其特征在于,将α-紫罗烯酮作为光学异构体的混合物进行不对称还原,使得所得光学活性α-离子酚与酯化反应,得到光学活性α-离子醇酯,水解 根据需要纯化后得到的光学活性α-离子醇酯,然后氧化所得光学活性α-离子醇; 和包含这样得到的光学活性α-紫罗兰酮的香料组合物。
    • 6. 发明授权
    • Magnetic detection apparatus for detecting movement of an object having
a nonuniform system of teeth
    • 用于检测具有不均匀系统的物体的运动的磁检测装置
    • US5869962A
    • 1999-02-09
    • US628090
    • 1996-04-09
    • Shigehiro KasumiTatsuo TamuraKenji YagiIchirou Izawa
    • Shigehiro KasumiTatsuo TamuraKenji YagiIchirou Izawa
    • G01D5/14G01D5/16G01D5/244G01D5/245G01P3/488G01P13/04G01B7/30G01R33/06H01L43/08
    • G01D5/147G01D5/2457G01P13/04G01P3/488
    • A magnetic detection apparatus detects movement of an object having a nonuniform system of teeth by means of magneto-electric conversion devices, wherein technical problems such as too large an amplified output signal, a nonuniform pulse period and a complicated circuit configuration can be solved. A plurality of uniform triangular teeth are formed on the circumference of a gear at equal angular intervals, and in a predetermined region a trapezoidal tooth is formed, where the height of the trapezoidal tooth is smaller than the height of the uniform teeth but greater than half their height. The magnetized surface of a bias magnet facing the gear generates a bias magnetic field directed toward the gear. Magneto-resistive devices are provided in the bias magnetic field. Variations in state of the bias magnetic field generated by the bias magnetic magnet when the gear is rotated are converted into an output electrical signal by the magneto-resistive devices. A binary conversion circuit converts the electrical signal output into a binary signal. Receiving the binary signal, a processing circuit detects a reference position and the rotational direction of the object.
    • 磁检测装置通过磁电转换装置检测具有不均匀系统的物体的移动,其中可以解决诸如放大输出信号过大,脉冲周期不均匀和电路配置复杂的技术问题。 多个均匀的三角形齿以相等的角度间隔形成在齿轮的圆周上,并且在预定区域中形成梯形齿,其中梯形齿的高度小于均匀齿的高度但大于一半 他们的身高 面向齿轮的偏置磁体的磁化表面产生指向齿轮的偏置磁场。 在偏置磁场中设置有磁阻元件。 当齿轮旋转时由偏置磁铁产生的偏置磁场的状态的变化由磁阻装置转换成输出电信号。 二进制转换电路将电信号输出转换为二进制信号。 接收二进制信号,处理电路检测对象的基准位置和旋转方向。