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    • 72. 发明授权
    • Image forming apparatus which modifies image forming condition depending
on the number of photosensitive drums used for a particular image
formation
    • 图像形成装置,其根据用于特定图像形成的感光鼓的数量来修改图像形成条件
    • US6061542A
    • 2000-05-09
    • US137151
    • 1998-08-20
    • Takeshi MinamiToru KasamatsuTakeshi SatakeSatoru Kawata
    • Takeshi MinamiToru KasamatsuTakeshi SatakeSatoru Kawata
    • G03G15/01G03G15/16
    • G03G15/0131G03G15/01G03G2215/0119
    • An image forming apparatus is composed of an image holding component for holding an image, a first image forming device and a second image forming device for respectively forming a first image and a second image on a surface of the image holding component, a switching unit for switching a mode between a first mode and a second mode, the first mode being where the first image forming device and the second image forming device come into contact with the image holding component and the second mode being where the second image forming device and the image holding component do not come into contact and the first image forming device comes into contact with the image holding component, a detecting unit for detecting information concerning an image formed on the image holding component, and a modifying unit for modifying at least one of an image forming condition for the first image and an image forming condition for the second image in accordance with the information detected by the detecting unit. With this structure, the current mode is switched as necessary, so that needless wear and tear on the second image forming device is prevented. Also, the modifying unit modifies the image forming conditions as necessary, so that deterioration on a reproduced image caused by the mode switching is prevented. As a result, a high-quality image can be obtained.
    • 图像形成装置由用于保持图像的图像保持部件,第一图像形成装置和第二图像形成装置构成,用于分别在图像保持部件的表面上形成第一图像和第二图像;切换部, 在第一模式和第二模式之间切换模式,第一模式是第一图像形成装置和第二图像形成装置与图像保持部件接触的第一模式,第二模式是第二图像形成装置和图像 保持部件不接触,第一图像形成装置与图像保持部件接触,用于检测关于形成在图像保持部件上的图像的信息的检测单元,以及修改单元,用于修改图像中的至少一个图像 根据由检测信号检测到的信息,第一图像的形成条件和第二图像的图像形成条件 g单位。 利用这种结构,根据需要切换电流模式,从而防止在第二图像形成装置上不必要的磨损。 此外,修改单元根据需要修改图像形成条件,从而防止由模式切换引起的再现图像的劣化。 结果,可以获得高质量的图像。
    • 74. 发明授权
    • Transesterification with lipase immobilized on a polymer containing
epoxy and tertiary amino groups
    • 固定在含有环氧基和叔氨基的聚合物上的脂肪酶进行酯交换
    • US5569594A
    • 1996-10-29
    • US438921
    • 1995-05-10
    • Yuzo IkutaSatoshi TashiroYoshiyuki HatanoTadasu FujitaNoboru AndohSachio AsaokaHaruto KobayashiTakeshi Minami
    • Yuzo IkutaSatoshi TashiroYoshiyuki HatanoTadasu FujitaNoboru AndohSachio AsaokaHaruto KobayashiTakeshi Minami
    • C12N9/20C12N11/08C12P7/64C12N11/06C12P7/62
    • C12P7/6454C12N11/08C12N9/20C12P7/6481
    • Transesterification involving a fat, or a fat and fatty acid, or a phospholipid is carried out with a lipase or phospholipase immobilized on a polymer carrier. The transesterification is preferably carried out in a system containing a very small amount of water such as 50 to 2,000 ppm. The phospholipase can be phospholipase A.sub.2. In a first embodiment, lipase from a microorganism of the genus Rhizopus, Mucor, Alcaligenes or Candida is immobilized on the surface of a hydrophobic, insoluble organic polymer carrier having pores of an average diameter of 10 nm or larger and having on the surface epoxy groups capable of covalently binding lipase. The immobilized lipase is dried under reduced pressure. In a second embodiment, lipase is immobilized on the surface of a polymer carrier such as a hydrophobic, insoluble organic polymer carrier having a pore diameter of 5 to 1,000 nm and having on the surface a functional group capable of binding lipase and an anion-exchange group. Preferably, the functional group is an epoxy group and the anion-exchange group is a tertiary amino group. The lipase may be obtained from the same microorganism as in the first embodiment or from another lipase-producing microorganism. Iramobilization can be carried out as in the first embodiment. It is preferred to contact a solution of lipase with the polymer carrier in the presence of a fatty acid or derivative thereof for 10 minutes to 10 hours to covalently bond the lipase to the polymer carrier.
    • 涉及脂肪或脂肪和脂肪酸或磷脂的酯交换是用固定在聚合物载体上的脂肪酶或磷脂酶进行的。 酯交换优选在含有非常少量的水如50-2000ppm的体系中进行。 磷脂酶可以是磷脂酶A2。 在第一实施方案中,将来自根霉属,毛霉属,产碱杆菌属或假丝酵母属的微生物的脂肪酶固定在具有平均直径为10nm以上的孔的疏水性不溶性有机聚合物载体的表面,并且在表面具有环氧基 能够共价结合脂肪酶。 将固定的脂肪酶在减压下干燥。 在第二实施方案中,将脂肪酶固定在聚合物载体的表面上,例如孔径为5至1000nm的疏水性不溶性有机聚合物载体,并且在表面上具有能够结合脂肪酶和阴离子交换的官能团 组。 优选地,官能团是环氧基团,阴离子交换基团是叔氨基。 脂肪酶可以从与第一实施方案相同的微生物获得,或从另一种脂肪酶生产微生物获得。 可以如第一实施方案那样进行消毒。 优选在脂肪酸或其衍生物的存在下将脂肪酶与聚合物载体接触10分钟至10小时以将脂肪酶共价结合到聚合物载体上。