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    • 1. 发明授权
    • Urethane acrylate compositions
    • 聚氨酯丙烯酸酯组合物
    • US4507458A
    • 1985-03-26
    • US594480
    • 1984-03-27
    • Hiroyuki ShirakiTetsuro Abe
    • Hiroyuki ShirakiTetsuro Abe
    • C08G18/67C08G18/75C09D175/16C08G18/32
    • C09D175/16C08G18/672C08G18/758Y10S428/90Y10T428/31551
    • A urethane acrylate resin obtained by reacting a polyisocyanate with a polyester polyol having a molecular weight of 500 to 3,000, a low-molecular-weight polyol having a molecular weight of 60 to 400 and a hydroxyalkyl acrylate containing at least 70 mole % of a monohydroxyalkyl acrylate at an NCO/OH equivalent ratio in the range of 0.7 to 1.20.The composition comprising the above urethane acrylate resin affords crosslinked products having extremely excellent, tough physical properties, and can therefore be advantageously employed, for example, for base coatings for paper and polyethylene films prior to vacuum metallizing, protective coatings after vacuum metallizing, covering materials for electromagnetic tapes and floppy discs, vehicles for printing ink, adhesives, etc.
    • 通过使多异氰酸酯与分子量为500〜3000的聚酯多元醇,分子量为60〜400的低分子量多元醇和含有至少70摩尔%的单羟基烷基的丙烯酸羟烷基酯反应得到的聚氨酯丙烯酸酯树脂 丙烯酸酯,其NCO / OH当量比在0.7至1.20的范围内。 包含上述聚氨酯丙烯酸酯树脂的组合物提供具有非常优异的韧性物理性能的交联产物,因此可以有利地用于例如真空金属化之前的纸和聚乙烯薄膜的基底涂层,真空金属化后的保护涂层,覆盖材料 用于电磁磁带和软盘,用于印刷油墨,粘合剂等的车辆
    • 4. 发明授权
    • Method and apparatus for evaluating the quality of a semiconductor substrate
    • 用于评估半导体衬底的质量的方法和装置
    • US06534774B2
    • 2003-03-18
    • US09815208
    • 2001-03-22
    • Takeshi HasegawaTerumi ItoHiroyuki Shiraki
    • Takeshi HasegawaTerumi ItoHiroyuki Shiraki
    • G01N2164
    • G01N21/6489G01N21/6408
    • A first chopper between a laser device and a semiconductor substrate chops an excitation light at a specific frequency, and a second chopper between the first chopper and the semiconductor substrate chops the excitation light at a variable frequency higher than the first chopper. A photoluminescence light emitted by the semiconductor substrate when the semiconductor substrate is intermittently irradiated with the excitation light is introduced into a monochromator. A controller obtains the decay time constant T of the photoluminescence light from variation of the average intensity of the photoluminescence light when gradually increasing the chopping frequency of the excitation light by controlling the second chopper, and computes the life time &tgr; of the semiconductor substrate from an expression “&tgr;=T/C”, where C is a constant. An object of the invention is to accurately evaluate impurities, defects and the like in a semiconductor substrate by obtaining quantitatively the life time of the semiconductor substrate having a long life time.
    • 激光装置与半导体基板之间的第一斩波器以特定频率切断激励光,第一斩波器与半导体基板之间的第二斩波器以比第一斩波器高的可变频率对激发光进行斩波。 当半导体衬底间歇地用激发光照射时,由半导体衬底发射的光致发光被引入到单色器中。 控制器通过控制第二斩波器逐渐增加激发光的斩波频率,从光致发光光的平均强度的变化中获得光致发光光的衰减时间常数T,并计算半导体衬底的寿命τ 表达式“tau = T / C”,其中C是常数。 本发明的目的是通过定量地获得具有长寿命的半导体衬底的寿命来准确地评估半导体衬底中的杂质,缺陷等。
    • 8. 发明授权
    • Epitaxial wafer and a method for manufacturing the same
    • 外延晶片及其制造方法
    • US06547875B1
    • 2003-04-15
    • US09668850
    • 2000-09-25
    • Ken NakajimaTamiya KarashimaHiroyuki Shiraki
    • Ken NakajimaTamiya KarashimaHiroyuki Shiraki
    • C30B1520
    • C30B29/06C30B15/203C30B25/20H01L21/3225
    • A wafer of the invention is a silicon wafer of 0.02 &OHgr;cm or less in resistivity for deposition of an epitaxial layer, and the number of crystal originated particles (COP) and the number of interstitial-type large dislocation loops (L/D) are respectively 0 to 10 per wafer. A wafer of the invention is an epitaxial wafer having an epitaxial layer being 0.1 &OHgr;cm or more in resistivity and 0.5 to 5 &mgr;m in thickness formed on this wafer by means of a CVD method. A wafer of the invention is OSF-free and hardly makes traces of COP and L/D appear on the surface of an epitaxial layer when the epitaxial layer is formed. By heat treatment in a semiconductor device manufacturing process after the epitaxial layer is formed, BMDs occur uniformly and highly in density in the wafer and a uniform IG effect can be obtained in the wafer.
    • 本发明的晶片是用于沉积外延层的电阻率为0.02欧姆·厘米或更小的硅晶片,并且晶体起始粒子(COP)的数量和间隙型大位错环(L / D)的数量分别为 每片晶片为0〜10。 本发明的晶片是通过CVD法在该晶片上形成的外延层的外延层的电阻率为0.1Ω/ cm以上,厚度为0.5〜5μm的外延层。 当形成外延层时,本发明的晶片是无OSF的,并且几乎不产生COP和L / D的痕迹出现在外延层的表面上。 通过在形成外延层之后的半导体器件制造工艺中的热处理,BMD在晶片中的密度均匀且高度地发生,并且可以在晶片中获得均匀的IG效应。
    • 9. 发明授权
    • Powder coating composition
    • 粉末涂料组合物
    • US06239215B1
    • 2001-05-29
    • US09274337
    • 1999-03-23
    • Hirokazu MoritaTatsuo FujiiHiroyuki Shiraki
    • Hirokazu MoritaTatsuo FujiiHiroyuki Shiraki
    • C09D503
    • C09D5/03C09D5/031
    • A powder coating composition comprising a multilayer polymer particle, in which at least one inner layer is a polymer layer having a glass transition temperature (Tg) of not over 20° C. and the outermost layer is a polymer layer having a Tg of not less than 60° C. and, the monomer components forming the polymer layer having a Tg of not over 20° C. are those having an unsaturated double bond in the molecule, and among the monomer components, a crosslinking monomer and a grafting monomer are used, respectively, within the ranges of 0.3 to 5 weight % and of 1 to 10 weight %, is dispersed in an amount of 1 to 30 parts by weight per 100 parts by weight of the total components other than the multilayer polymer particle can show excellent dispersibility to various powder coatings and can improve workability and impact resistance of a coat film while maintaining inherent characteristics of a powder coating such as appearance of a coat film and an anti-blocking property.
    • 一种粉末涂料组合物,其包含多层聚合物颗粒,其中至少一层内层是玻璃化转变温度(Tg)不超过20℃的聚合物层,最外层是Tg不低于 60℃以上,形成Tg不高于20℃的聚合物层的单体成分是分子中具有不饱和双键的单体成分,单体成分中使用交联单体和接枝单体 分别在0.3〜5重量%和1〜10重量%的范围内,相对于多层聚合物粒子以外的总成分100重量份,以1〜30重量份的量分散,能够显示优异的 可分散到各种粉末涂料中,并且可以提高涂膜的可加工性和抗冲击性,同时保持涂层的外观和防粘连性等粉末涂料的固有特性。