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    • 4. 发明授权
    • Image processing method and image processing apparatus
    • 图像处理方法和图像处理装置
    • US07379211B2
    • 2008-05-27
    • US10393327
    • 2003-03-20
    • Akira IshiiKenji Ogi
    • Akira IshiiKenji Ogi
    • H04N1/40
    • H04N1/4055
    • An image processing method that puts input image data represented by multi-value pixels into gradation representation of dots having binary data of plural minute pixels while performing error diffusion processing. The method includes a first step that when a dot is formed which corresponds to correction image data produced by adding correction data to multi-value image data of a multi-value target pixel, only in the case where the dot is to be formed so as to be adjacent to a dot formed for a proper adjacent multi-value pixel, forms the dot even if it has less than k (2 or greater integer) number of minute pixels. In other cases, the method forms only a dot having k number of minute pixels or more.
    • 一种图像处理方法,其在执行误差扩散处理的同时,将由多值像素表示的输入图像数据放入具有多个微小像素的二进制数据的点的灰度表示中。 该方法包括第一步骤,当形成对应于通过将校正数据添加到多值目标像素的多值图像数据而产生的校正图像数据的点时,仅在要形成点的情况下 与形成为适当的相邻多值像素的点相邻,即使其小于k(2个或更大整数)个微小像素,也形成点。 在其他情况下,该方法仅形成具有k个微小像素以上的点。
    • 5. 发明授权
    • Optical scanning device
    • 光学扫描装置
    • US6104524A
    • 2000-08-15
    • US229176
    • 1999-01-13
    • Tohru HisanoAkira IshiiKoichiro Shinohara
    • Tohru HisanoAkira IshiiKoichiro Shinohara
    • B41J2/44G02B5/09G02B26/12G02B26/08
    • G02B5/09
    • A polygon mirror 36 have reflecting surfaces being arrayed such that the reflecting surfaces each having coatings 38 at both ends thereof and the reflecting surfaces having no coating are alternately arrayed. A beam width of a light beam reflected by a coating facet 36A is smaller than a beam width of a light beam by a non-coating facet 36B. Alight beam (first light beam) is deflected by the coating facet 36A, and it lands on a photoreceptor. A light beam (second light beam) is deflected by the non-coating facet 36B, and it lands on the photoreceptor. At this time, a beam diameter of the first light beam on the photoreceptor in the first scan direction is larger than that of the second light beam. When the laser beam is deflected by the non-coating facet 36B, the laser beam is modulated by image data. When it is deflected by the coating facet 36A, the laser beam is modulated by bias data. Both the laser beams are projected to over the entire surface of a projected object within the scanning area, whereby an electrostatic latent image of high contract is formed on the object surface.
    • 多面反射镜36具有排列反射面,使得其两端具有涂层38的反射面和不具有涂层的反射面交替排列。 由涂层面36A反射的光束的光束宽度小于非涂布面36B的光束的光束宽度。 光束(第一光束)被涂层小面36A偏转,并且其落在感光体上。 光束(第二光束)被非涂覆面36B偏转,并且其落在感光体上。 此时,第一扫描方向上的感光体上的第一光束的光束直径大于第二光束的光束直径。 当激光束被非涂层面36B偏转时,激光束被图像数据调制。 当被涂层面36A偏转时,激光束被偏置数据调制。 两个激光束被投射到扫描区域内的投影物体的整个表面上,由此在物体表面上形成高收缩的静电潜像。
    • 10. 发明授权
    • Method for producing aliphatic polyester having increased molecular weight
    • 具有分子量增加的脂肪族聚酯的制造方法
    • US08865081B2
    • 2014-10-21
    • US14009896
    • 2012-01-17
    • Yasushi IchikawaHideharu KimuraAkira Ishii
    • Yasushi IchikawaHideharu KimuraAkira Ishii
    • B01J19/20C08G18/42C08G63/78C08G63/91
    • C08G63/78C08G18/4238C08G18/73C08G63/916Y02P20/149
    • The problem to be solved by the present invention is to provide a method for continuously and effectively producing an aliphatic polyester having an increased molecular weight which prevents evaporation of diisocyanate at the step of mixing the diisocyanate with the aliphatic polyester prepolymer in a molten state at a temperature not lower than the melting point of the prepolymer and enables uniform mixing of the diisocyanate with the aliphatic polyester prepolymer. In order to solve this problem, the present invention provides a method for producing an aliphatic polyester having an increased molecular weight comprising the steps of: (i) quantitatively injecting a diisocyanate into an aliphatic polyester prepolymer which has a number average molecular weight of 5000 or higher and has terminal hydroxyl groups and in which at least one acid component is a succinic acid compound, in a molten state at a temperature not lower than the melting point thereof, wherein the amount of diisocyanate is equivalent to between one tenth and two times the amount of the hydroxyl groups in the aliphatic polyester prepolymer, (ii) quantitatively and continuously mixing the diisocyanate-containing aliphatic polyester prepolymer obtained at step (i) by a static mixer, discharging same from the static mixer, and then supplying same to a coupling reaction tank, and (iii) reacting the aliphatic polyester prepolymer with the diisocyanate in the coupling reaction tank.
    • 本发明要解决的问题是提供一种连续有效地制造具有增加的分子量的脂族聚酯的方法,该方法在熔融状态下将二异氰酸酯与脂族聚酯预聚物混合在一起的步骤中防止二异氰酸酯蒸发 温度不低于预聚物的熔点,可使二异氰酸酯与脂族聚酯预聚物均匀混合。 为了解决这个问题,本发明提供一种生产分子量增加的脂族聚酯的方法,包括以下步骤:(i)将二异氰酸酯定量注入数均分子量为5000的脂族聚酯预聚物或 更高且具有末端羟基,并且其中至少一种酸组分是琥珀酸化合物,在不低于其熔点的温度下处于熔融状态,其中二异氰酸酯的量等于十二分之一到二分之一 脂肪族聚酯预聚物中的羟基量,(ii)通过静态混合器将步骤(i)中获得的含二异氰酸酯的脂族聚酯预聚物定量连续混合,从静态混合器中排出,然后将其提供给偶联剂 反应罐,和(iii)在偶联反应槽中使脂族聚酯预聚物与二异氰酸酯反应。