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    • 22. 发明授权
    • Polymerized toner
    • 聚合调色剂
    • US6136490A
    • 2000-10-24
    • US985215
    • 1997-12-04
    • Tokudai OgawaJun SakaiJun Hasegawa
    • Tokudai OgawaJun SakaiJun Hasegawa
    • G03G9/093
    • G03G9/09321G03G9/09392
    • A monomer for a shell or a mixture of at least two monomers for a shell was suspension polymerized in the presence of core particles and a polymerization initiator to obtain polymer particles, wherein said core particles are formed of a polymer obtained by polymerization of a monomer for a core or a mixture of at least two monomers for a core and containing a colorant, wherein said monomer for a shell or mixture of monomers for a shell is one which gives upon polymerization a polymer having a glass transition temperature higher than that of the polymer forming the core particle, and wherein said polymerization initiator is represented by the following formula 1: ##STR1## wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4 independently represent oxygen atom, sulfur atom, >NR (wherein R is hydrogen atom, alkyl group, or group); R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently represent alkyl group, aryl group, or alkyl or aryl group having at least one substituent which is --OR, --OH, --NHR, or --NR.sub.2 (wherein R is alkyl group or aryl group), and n and m independently represent an integer of 1 to 10. An outer additive was applied on the polymer particle to obtain a polymerized toner. This polymerized toner has low fixing temperature, excellent overhead projector transparency, good shelf stability, and exhibiting a less pronounced reduction in electric charge under conditions of high humidity and high temperature.
    • 用于壳的单体或至少两种用于壳的单体的混合物在芯颗粒和聚合引发剂的存在下悬浮聚合以获得聚合物颗粒,其中所述芯颗粒由聚合物形成,所述聚合物通过将 用于核心并含有着色剂的核心或至少两种单体的混合物,其中所述用于壳的壳或壳单体混合物的单体是聚合时具有玻璃化转变温度高于聚合物的聚合物的聚合物 形成核心颗粒,其中所述聚合引发剂由下式1表示:其中X1,X2,X3和X4独立地表示氧原子,硫原子,> NR(其中R是氢原子,烷基或基团)。 R1,R2,R3,R4,R5和R6独立地表示烷基,芳基或具有至少一个取代基的-OR,-OH,-NHR或-NR2的烷基或芳基(其中R是烷基或 芳基),n和m独立地表示1〜10的整数。将外添加剂涂布在聚合物粒子上,得到聚合调色剂。 该聚合调色剂具有低定影温度,优异的高架投影仪透明度,良好的储存稳定性,并且在高湿度和高温条件下表现出不太显着的电荷减少。
    • 26. 发明授权
    • Image reading apparatus
    • 图像读取装置
    • US5805306A
    • 1998-09-08
    • US681089
    • 1996-07-22
    • Eiji KitsutakaJun Hasegawa
    • Eiji KitsutakaJun Hasegawa
    • G06K9/32G06T1/00G06T3/60H04N1/00H04N1/04H04N1/12H04N1/21H04N1/38H04N1/387H04N1/40
    • H04N1/00681H04N1/00718H04N1/00737H04N1/00745H04N1/00766H04N1/38H04N1/387H04N1/12
    • An image reading apparatus for approximately obtaining an image signal which might have been obtained if scanned in a second direction using an image signal obtained by scanning in a first direction. The image apparatus includes a conveyer for conveying a document, a detector for detecting the inclination of the conveyed document, and a window generator for generating a window signal. Also included is an image reader for reading an image by scanning the document in a first direction at a width broader than the width of the document and reading the scanned image only when the window signal is present to produce an issuing image signal. Also included is a first corrector for adjusting the start timing of the window signal so that the window signal may be started when the scanning passes through the beginning end of the document by reference to the inclination angle of the document. Also included is a second corrector for dividing the image signal of each sweep for the first direction after the first correction into a plurality of image signal blocks linking a plurality of the image signal blocks and approximate image signal which might have been obtained if scanned in the second direction.
    • 一种图像读取装置,用于近似获得如果使用通过沿第一方向进行扫描获得的图像信号在第二方向上扫描的图像信号。 图像装置包括用于传送文件的传送器,用于检测所传送文件的倾斜度的检测器,以及用于产生窗口信号的窗口发生器。 还包括图像读取器,用于通过以比文件宽度更宽的宽度沿第一方向扫描原稿并仅在存在窗口信号以产生发出图像信号时读取扫描图像来读取图像。 还包括第一校正器,用于调整窗口信号的开始定时,使得当扫描通过参考文档的倾斜角度的扫描通过文档的开始端时可以开始窗口信号。 还包括第二校正器,用于将在第一校正之后的第一方向的每个扫描的图像信号分割成链接多个图像信号块的多个图像信号块以及如果在 第二个方向
    • 27. 发明授权
    • Phase difference detection type rangefinder and method of measuring
subject distance
    • 相位差检测型测距仪及测距距离测量方法
    • US5568249A
    • 1996-10-22
    • US229818
    • 1994-04-19
    • Kazuo KawamuraJun HasegawaTakashi Miida
    • Kazuo KawamuraJun HasegawaTakashi Miida
    • G01C3/06G01S11/12G02B7/32G02B7/34G06T7/60G01C3/08
    • G01S11/12G02B7/32
    • A phase difference detection type rangefinder is provided which calculates a distance value of each subject of two or more subjects at different distances. The rangefinder has a correlation calculation unit for calculating a correlation factor between images of a same subject focussed on a base photosensor and a reference photosensor, a second order differentiation unit for calculating second order differential values of correlation factors calculated by the correlation calculation unit, a second order differential value comparison unit for selecting a maximum second order differential value from the second order differential values calculated by the second order differentiation unit, a three-point interpolation unit for calculating an interpolation value through three-point interpolation using the maximum second order differential value and two second order differential values having the phases before and after the phase of the maximum second order differential value, and a distance value calculation unit for calculating a distance value from the phase of the maximum second order differential value and the interpolation value.
    • 提供一种相位差检测型测距仪,其计算不同距离的两个或更多个被摄体的每个被摄体的距离值。 测距仪具有相关计算单元,用于计算聚焦在基础光电传感器上的相同对象的图像与参考光电传感器之间的相关因子;二阶微分单元,用于计算由相关计算单元计算的相关因子的二阶微分值, 二阶微分值比较单元,用于从由二阶微分单元计算的二阶微分值中选择最大二阶微分值;三点插值单元,用于通过使用最大二阶微分的三点插值来计算插补值 以及具有在最大二阶微分值的相位之前和之后的相位的两个二阶微分值,以及距离值计算单元,用于根据最大二阶微分值和内插值的相位来计算距离值。