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    • 22. 发明授权
    • Image forming apparatus having data compression/decompression system
    • 具有数据压缩/解压缩系统的图像形成装置
    • US06741367B1
    • 2004-05-25
    • US09536909
    • 2000-03-28
    • Takeo Watanabe
    • Takeo Watanabe
    • G06F312
    • G06K15/00G06K2215/0002G06K2215/0014G06K2215/0071
    • A PC supplies previously compressed print data to a printer. In the printer, image data are generated based on the supplied print data, and the generated image data are developed in an image memory. Since the print data are compressed, a compressor/decompressor decompresses the print data. If available free area in the image memory is insufficient for developing the image data, the compressor/decompressor compresses the image data previously stored in the image memory, and the image memory is refreshed with the compressed image data. The compressed image data are decompressed by the compressor/decompressor before output to a printer engine. The compressor/decompressor is available for decompressing the print data during a period since the data reception from the PC until a sheet of paper onto which an image is formed reaches a predetermined position. When the sheet of the paper reaches the predetermined position, the compressor/decompressor is switched to decompress only the image data in the image memory.
    • PC将以前压缩的打印数据提供给打印机。 在打印机中,基于所提供的打印数据生成图像数据,并且生成的图像数据被显影在图像存储器中。 由于打印数据被压缩,压缩器/解压缩器解压缩打印数据。 如果图像存储器中的可用空闲区域不足以显影图像数据,则压缩器/解压缩器压缩先前存储在图像存储器中的图像数据,并且利用压缩图像数据刷新图像存储器。 在输出到打印机引擎之前,压缩器/解压缩器对压缩的图像数据进行解压缩。 压缩/解压缩器可用于在从PC的数据接收到形成图像的纸张到达预定位置之前的一段时间期间对打印数据进行解压缩。 当纸张的纸张到达预定位置时,压缩机/解压缩器被切换以仅对图像存储器中的图像数据进行解压缩。
    • 29. 发明授权
    • Photocurable composition
    • 可光固化组合物
    • US06486225B1
    • 2002-11-26
    • US09441954
    • 1999-11-17
    • Hirotoshi KamataTakeo WatanabeKazuhiko OogaToshio Koshikawa
    • Hirotoshi KamataTakeo WatanabeKazuhiko OogaToshio Koshikawa
    • C08F248
    • C09D175/16C08G18/672C08G18/673C08G18/6795C08G18/792C08K5/0041C08K5/55C08G18/48C08L75/16
    • A photocurable composition comprising (A) 100 parts by weight of a compound having an ethylenically unsaturated group, (B) from 0.001 to 5 parts by weight of a cationic dye having an absorption maximum wavelength in the wavelength region of from 400 to 1,200 nm represented by formula (1: D+·A1−  (1) wherein D+ represents a cation having an absorption maximum wavelength in the wavelength region of from 400 to 1,200 nm, and A1 31 represents an anion, and (C) from 0.005 to 10 parts by weight of a quaternary borate-type compound represented by formula (2): wherein R1, R2, R3 and R4 each independently represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, an alkynyl group, a silyl group, a heterocyclic group or a halogen atom, and Z+ represents a cation, wherein from 5 to 95 wt % of (A) the compound having an ethylenically unsaturated group is a urethane (meth)acrylate oligomer obtained by the reaction of a polyisocyanate having three or more isocyanate groups within one molecule with a hydroxyl group-containing (meth)acrylic acid ester.
    • 一种可光固化组合物,其包含(A)100重量份具有烯键式不饱和基团的化合物,(B)0.001至5重量份在波长范围为400至1200nm的吸收最大波长的阳离子染料, (1)其中D +表示波长范围为400〜1200nm的吸收最大波长的阳离子,A131表示阴离子,(C)0.005〜10重量份的季硼酸盐型 由式(2)表示的化合物:其中R1,R2,R3和R4各自独立地表示烷基,芳基,芳烷基,烯基,炔基,甲硅烷基,杂环基或卤素原子 ,Z +表示阳离子,其中,(A)具有烯键式不饱和基团的化合物的5〜95重量%是通过在1分子w内具有3个以上异氰酸酯基的多异氰酸酯反应得到的聚氨酯(甲基)丙烯酸酯低聚物 具有羟基的(甲基)丙烯酸酯。