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    • 133. 发明申请
    • Microcapsule-Based Hardener for Epoxy Resin, Masterbatch-Based Hardener Composition for Epoxy Resin, One-Part Epoxy Resin Composition, and Processed Good
    • 用于环氧树脂的微胶囊基固化剂,环氧树脂的母料基固化剂组合物,单组分环氧树脂组合物和加工良好
    • US20090186962A1
    • 2009-07-23
    • US12223523
    • 2007-01-31
    • Yoshikimi KondoHiroshi UchidaKazuhiro Daikai
    • Yoshikimi KondoHiroshi UchidaKazuhiro Daikai
    • C08L63/00C08J3/22
    • C08G59/184C08G59/188Y10T428/2989
    • Provided is a microcapsule-based hardener for an epoxy resin, which have a core (C) formed using a hardener (H) for the epoxy resin as a starting material and a shell (S) for covering the core (C) therewith. Since it is characterized in that the hardener (H) for the epoxy resin has an average particle size exceeding 0.3 μm and not greater than 12 μm; a content of a small-particle-size hardener for epoxy resin defined to have a particle size 0.5 time or less of the average particle size of the hardener (H) for the epoxy resin is from 0.1 to 15%; and the shell (S) has, on the surface thereof, a binding group (x) capable of absorbing infrared rays having a wave number of from 1630 to 1680 cm−1, a binding group (y) capable of absorbing infrared rays having a wave number of from 1680 to 1725 cm−1, and a binding group (z) capable of absorbing infrared rays having a wave number of from 1730 to 1755 cm−1, it is excellent in storage stability and at the same time, in reaction rapidity.
    • 本发明提供一种环氧树脂微胶囊型固化剂,其具有使用环氧树脂作为原料的固化剂(H)形成的芯(C)和用于覆盖芯(C)的壳(S)。 由于其特征在于环氧树脂的硬化剂(H)的平均粒径超过0.3μm且不大于12μm; 用于环氧树脂的小粒径固化剂的含量为环氧树脂的固化剂(H)的平均粒径的0.5倍以下的粒径为0.1〜15% 壳体(S)的表面上具有能够吸收波数为1630〜1680cm -1的红外线的结合组(x),能够吸收红外线的结合基(y)具有 1680〜1725cm -1的波数和能够吸收1730〜1755cm -1的波数的红外线的结合基(z),其保存稳定性优异,同时在反应中 速度快
    • 134. 发明授权
    • Magnetic disk drive and a loading/unloading method
    • 磁盘驱动器和装载/卸载方法
    • US07558017B2
    • 2009-07-07
    • US11789770
    • 2007-04-24
    • Isao YonedaKazuyuki IshibashiTakeshi ChawanyaHiroshi Uchida
    • Isao YonedaKazuyuki IshibashiTakeshi ChawanyaHiroshi Uchida
    • G11B21/02G11B5/596
    • G11B5/5526G11B21/12
    • Embodiments in accordance with the present invention provide a magnetic disk drive with sufficiently low noise. A digital/analog converter supplies to a voice coil motor (VCM) driver a control voltage comprising a first preset voltage value, a second preset voltage value, and a transition voltage value of a substantially cosine wave that interconnects the first preset voltage value and the second preset voltage value. A driving current is supplied from the VCM driver to a voice coil of an actuator assembly. Since a current not containing higher-harmonic components in a transition period flows as a VCM current that flows into the voice coil, vibromotive force can be easily suppressed by shifting a structural resonance point of the entire disk drive including the actuator assembly. In addition, since the back electromotive force occurring in an inductance element is cleared to zero during a half wavelength of period of the cosine wave, speed electromotive force can be measured by immediate shifting from a setting period to a measuring period.
    • 根据本发明的实施例提供具有足够低噪声的磁盘驱动器。 数字/模拟转换器向音圈电机(VCM)驱动器提供包括第一预设电压值,第二预设电压值和互连第一预设电压值和基本上余弦波的转换电压值的控制电压, 第二预设电压值。 驱动电流从VCM驱动器提供给致动器组件的音圈。 由于在过渡期间不包含高次谐波分量的电流作为流入音圈的VCM电流流动,所以通过移动包括致动器组件在内的整个磁盘驱动器的结构共振点,可以容易地抑制振动力。 此外,由于在余弦波的周期的半波长期间,电感元件中产生的反电动势被清零,所以可以通过立即从设定周期向测量周期移动来测量速度电动势。
    • 138. 发明申请
    • THERMOSETTING RESIN COMPOSITION AND USES THEREOF
    • 热固性树脂组合物及其用途
    • US20090008138A1
    • 2009-01-08
    • US12281274
    • 2007-03-08
    • Hiroshi UchidaTomokazu Umezawa
    • Hiroshi UchidaTomokazu Umezawa
    • H05K1/03C08K5/5313
    • C08G18/758C08G18/0823C08G18/44C08G18/6576C08G18/6659C08G59/4269C08K3/016C08K5/5313C08L63/00C08L75/04H05K3/285H05K2201/012H05K2201/0212C08L2666/14C08L2666/22
    • The thermosetting resin composition and the solder resist ink according to the present invention are characterized by comprising: a thermosetting resin (A) comprising (A1) a compound containing an acid anhydride group and/or a carboxyl group and (A2) a compound having a functional group which reacts with (A1) described above and an organic filler (B) containing a phosphorus atom, wherein the organic filler (B) containing a phosphorus atom has an average particle diameter of 50 Êm or less. According to the present invention, capable of being provided at a low cost and a good productivity are an excellent thermosetting resin composition and solder resist ink capable of forming a cured material which achieves an adhesion to a substrate, a low warping property, a flexibility, a plating resistance, a solder heat resistance and a long term reliability as well as a flame retardancy, and a cured material and a protective film which are excellent in the above characteristics. Further, electronic parts having a protective film which is excellent in a flame retardancy and which has a high reliability can be provided.
    • 根据本发明的热固性树脂组合物和阻焊油墨的特征在于包括:包含(A1)含有酸酐基和/或羧基的化合物的热固性树脂(A)和(A2)具有 与上述(A1)反应的官能团和含有磷原子的有机填料(B),其中,含有磷原子的有机填料(B)的平均粒径为50μm以下。 根据本发明,能够以低成本和高生产率提供的是具有能够形成固化材料的优异的热固性树脂组合物和阻焊油墨,其能够实现与基材的粘合性,低翘曲性,柔软性, 电镀电阻,焊料耐热性和长期可靠性以及阻燃性,以及上述特性优异的固化材料和保护膜。 此外,可以提供具有阻燃性优异且可靠性高的保护膜的电子部件。