会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Magnetic recording medium having an upper magnetic layer and a lower
magnetic layer comprising ferromagnetic powder, carbon black and a
specified polyurethane binder
    • 具有上磁性层和下磁性层的磁记录介质包括铁磁粉末,炭黑和特定的聚氨酯粘合剂
    • US5536567A
    • 1996-07-16
    • US412588
    • 1995-03-29
    • Atsushi KatoYuji KatoHaruo IshizakiTakahiro Takayama
    • Atsushi KatoYuji KatoHaruo IshizakiTakahiro Takayama
    • C09D5/23C09D175/00C09D175/04G11B5/702G11B5/708G11B5/716G11B5/842G11B5/00
    • G11B5/7022G11B5/708G11B5/716Y10S428/90Y10T428/25Y10T428/265Y10T428/31609Y10T428/31935
    • Disclosed is a magnetic recording medium having a first magnetic layer 2 and a second magnetic layer 4 laminated on a non-magnetic support in this order, wherein the binder in the lower first magnetic layer 2 comprises only polyurethane resin(s) having tertiary amines as polar groups or only said polyurethane resin(s) and a curing agent or comprises a mixed system composed of polyurethane resin(s) having tertiary amines as polar groups and amine-modified vinyl chloride-based resin(s) or of these resins and a curing agent. The first magnetic layer 2 may contain carbon black having a specifically-defined mean particle size. The coatability of the magnetic coating compositions is improved. The electromagnetic conversion characteristics (especially, video S/N, chroma output power, chroma S/N) of the medium are improved. Since the crosslinking of the components constituting the lower magnetic layer is improved, the dropout of the medium is not increased even after stored. This invention provides a magnetic recording medium capable of being subjected to long-sustained, high-quality recording and reproduction in severe conditions. The medium has high electric resistance, high light transmittance and good running durability, even though not having a back coat layer.
    • 公开了一种磁记录介质,其具有依次层叠在非磁性载体上的第一磁性层2和第二磁性层4,其中下部第一磁性层2中的粘合剂仅包含具有叔胺的聚氨酯树脂 极性基团或只有所述聚氨酯树脂和固化剂,或包含由具有叔胺作为极性基团的聚氨酯树脂和胺改性的氯乙烯类树脂或这些树脂组成的混合体系,以及 固化剂。 第一磁性层2可以含有具有特定的平均粒径的炭黑。 提高了磁性涂料组合物的涂布性。 介质的电磁转换特性(特别是视频S / N,色度输出功率,色度S / N)得到改善。 由于构成下部磁性层的成分的交联得到改善,所以即使在保存后也不会使介质的脱落增加。 本发明提供一种能够在恶劣条件下经受长时间,高质量记录和再现的磁记录介质。 该介质具有高电阻,高透光率和良好的运行耐久性,即使不具有背涂层。
    • 19. 发明授权
    • Transfer device and image forming apparatus including same
    • 转印装置和包括其的图像形成装置
    • US09348271B2
    • 2016-05-24
    • US14712204
    • 2015-05-14
    • Yuji KatoShinya Tanaka
    • Yuji KatoShinya Tanaka
    • G03G15/16G03G15/01
    • G03G15/1665G03G15/0136G03G15/1675
    • A transfer device includes an image bearer to bear a toner image, a nip forming device to contact the image bearer to form a transfer nip, a transfer bias power source including a direct current (DC) power source and an alternating current (AC) power source electrically connected to each other to output a transfer bias including at least one of a DC bias and a superimposed bias to transfer the toner image from the image bearer onto a recording medium interposed in the transfer nip, a contact-and-separation device to cause the image bearer and the nip forming device to contact and separate from each other, and a controller to control the contact-and-separation device to increase a size of a space between the image bearer and the nip forming device upon transfer using the superimposed bias such that the space is larger than the space upon transfer using the DC bias.
    • 转印装置包括承载调色剂图像的图像载体,与图像载体接触以形成转印夹持部的夹持形成装置,包括直流(DC)电源和交流(AC)功率的转印偏压电源 源极彼此电连接以输出包括DC偏压和叠加偏压中的至少一个的转印偏压,以将调色剂图像从图像载体转印到介于转印辊隙中的记录介质上;接触 - 分离装置, 导致图像载体和压区形成装置彼此接触和分离;以及控制器,用于控制接触分离装置,以使用叠加的图像载体和夹持形成装置之间的空间的尺寸增大 偏置,使得空间比使用DC偏压的转移时的空间大。