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    • 3. 发明授权
    • Process for preparation of oxyglutaric acid ester derivatives
    • 氧戊二酸酯衍生物的制备方法
    • US5717124A
    • 1998-02-10
    • US539173
    • 1995-10-04
    • Katsumasa HaradaAkio MatsushitaHiroshi SasakiYasuhiro Kawachi
    • Katsumasa HaradaAkio MatsushitaHiroshi SasakiYasuhiro Kawachi
    • C07F9/40C07F9/53C07F7/08
    • C07F9/4006C07F9/5304Y02P20/55
    • A process for preparing an oxyglutaric acid ester derivative of the formula: ##STR1## in which each of R.sup.1 and R.sup.2 is C.sub.1-5 alkoxy, C.sub.1-7 aralkyloxy, C.sub.7-9 halogenated aralkyloxy or phenyl, R.sup.4 is a hydroxyl-protecting group, and R.sup.5 is C.sub.1-10 alkyl which may have a substituent, comprises the steps of reacting a methyl phosphonate derivative or methyl phosphine oxide derivative with an oxyglutaric acid mono-ester to give a reaction product which comprises an oxyglutaric acid derivative having a phosphorus-containing group and a pentenedioic acid mono-ester (by-product), removing the pendenedioic acid mono-ester from the reaction product to isolate the oxyglutaric acid derivative, and converting the isolated oxyglutaric acid derivative into the oxyglutaric acid ester derivative. A process for obtaining an optically active oxyglutaric acid ester derivative is also disclosed.
    • 制备下式的其中R 1和R 2各自为C 1-5烷氧基,C 1-7芳烷氧基,C 7-9卤代芳烷基氧基或苯基的下式的下式的下列通式: R5是可以具有取代基的C1-10烷基,包括使甲基膦酸酯衍生物或甲基氧化膦衍生物与羟基戊二酸单酯反应,得到含有含磷的羟基戊二酸衍生物的反应产物 基和戊烯二酸单酯(副产物),从反应产物中除去邻苯二甲酸单酯以分离出氧戊二酸衍生物,并将分离的羟基戊二酸衍生物转化为羟基戊二酸酯衍生物。 还公开了获得光学活性的羟基戊二酸酯衍生物的方法。
    • 7. 发明授权
    • Endoscope system, imaging apparatus, and control method
    • 内窥镜系统,成像装置和控制方法
    • US08723937B2
    • 2014-05-13
    • US13049055
    • 2011-03-16
    • Hiroshi Sasaki
    • Hiroshi Sasaki
    • H04N7/18A62B1/04
    • A61B1/00096A61B1/00009A61B1/00188A61B1/05G02B23/2407
    • An endoscope system includes an imaging section that includes an optical system and an imaging element, an observation mode setting section that sets an object observation mode, a diaphragm control section that selects a diaphragm state based on the observation mode, and an image processing section that processes an image acquired by the imaging section. The diaphragm control section selecting a first diaphragm state when the observation mode is a first observation mode. The first diaphragm state being a state in which a resolution determined by a diffraction limit based on a diaphragm of the optical system is lower than a resolution determined by the imaging element. The diaphragm control section selecting a second diaphragm state when the observation mode is a second observation mode. The second diaphragm state being a state in which the resolution determined by the diffraction limit based on the diaphragm of the optical system is equal to or higher than the resolution determined by the imaging element.
    • 一种内窥镜系统,包括:摄像部,其具备光学系统和摄像元件,设定被摄体观察模式的观察模式设定部,基于观察模式选择光阑状态的光圈控制部;以及图像处理部, 处理由成像部获取的图像。 当观察模式是第一观察模式时,光圈控制部分选择第一光阑状态。 第一光阑状态是其中由基于光学系统的光阑的衍射极限决定的分辨率低于由成像元件确定的分辨率的状态。 当观察模式是第二观察模式时,光圈控制部分选择第二光阑状态。 第二光阑状态是基于光学系统的光阑的由衍射极限决定的分辨率等于或高于由成像元件确定的分辨率的状态。
    • 9. 发明申请
    • CALCULATING DEVICE AND FLOW METER EQUIPPED WITH CALCULATING DEVICE
    • 计算装置和流量计与计算装置配套
    • US20110218742A1
    • 2011-09-08
    • US12943276
    • 2010-11-10
    • Hiroshi Sasaki
    • Hiroshi Sasaki
    • G06F19/00G01F1/00
    • G01F1/00G06F19/00
    • The calculating device has first and second Fourier transform portions performing Fourier transforms on two respective inputted signals; a complex conjugate deriving portion deriving a complex conjugate of a value outputted from the first Fourier transform portion; a multiplier multiplying the complex conjugate with the value outputted from the second Fourier transform portion, and outputting the value after the multiplication; a Hilbert transform portion performing a Hilbert transform on the value after multiplication; first and second inverse Fourier transform portions performing respective inverse Fourier transforms on the value after multiplication and the value outputted from the Hilbert transform portion; a phase relationship deriving portion deriving a phase relationship between the two inputted signals based on the values outputted from the first and second inverse Fourier transform portions; and a time difference deriving portion deriving a time difference between the two inputted signals based on the phase relationship.
    • 计算装置具有对两个相应的输入信号进行傅立叶变换的第一和第二傅里叶变换部分; 导出从第一傅里叶变换部分输出的值的复共轭的复共轭导出部分; 乘法器,将复共轭与从第二傅立叶变换部分输出的值相乘,并输出乘法后的值; Hilbert变换部分对乘法后的值执行希尔伯特变换; 第一和第二逆傅里叶变换部分对乘法后的值执行各自的傅立叶逆变换和从希尔伯特变换部分输出的值; 相位关系导出部,基于从第一和第二傅里叶逆变换部输出的值,导出两个输入信号之间的相位关系; 以及基于相位关系导出两个输入信号之间的时间差的时差导出部分。