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    • 43. 发明授权
    • Optical glass and optical element
    • 光学玻璃和光学元件
    • US08835334B2
    • 2014-09-16
    • US13703048
    • 2011-09-12
    • Takahiro MatanoFumio Sato
    • Takahiro MatanoFumio Sato
    • C03C3/064C03C3/14C03C3/066C03C3/15C03C3/145C03C3/068C03C3/155C03C4/02
    • C03C4/02C03C3/064C03C3/066C03C3/068C03C3/14C03C3/145C03C3/15C03C3/155
    • Provided is an optical glass which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having a superior visible light transmittance; and (5) it has superior resistance to devitrification during preparation of a preform. The optical glass has a refractive index nd of 2.0 or more, an Abbe's number νd of 20 or less, a glass transition point of 450° C. or below, and a glass composition, in % by mass, of 70 to 90% Bi2O2, 4 to 29.9% B2O2, 0.1 to 10% Li2O+Na2O+K2O, and 0 to 2.5% SiO2+Al2O2 and is substantially free of lead component, arsenic component, F component, TeO2, and GeO2.
    • 提供可以满足以下所有要求的光学玻璃:(1)不含有环境不良成分; (2)可以轻松实现低玻璃化转变点; (3)折射率高,色散高; (4)可以容易地提供具有优异的可见光透射率的玻璃; 和(5)在制备预成型品时具有优异的抗失透性。 光学玻璃的折射率nd为2.0以上,阿贝数n为20以下,玻璃化转变温度为450℃以下,玻璃组合物的质量%为70〜90 4%〜29.9%的B 2 O 2,0.1〜10%的Li 2 O + Na 2 O + K 2 O,0〜2.5%的SiO 2 + Al 2 O 2,并且基本上不含铅成分,砷成分,F成分,TeO 2和GeO 2。
    • 45. 发明申请
    • OPTICAL GLASS FOR MOLD PRESS FORMING
    • 用于模压成型的光学玻璃
    • US20120065051A1
    • 2012-03-15
    • US13320755
    • 2010-06-14
    • Takahiro MatanoFumio SatoYoko Usui
    • Takahiro MatanoFumio SatoYoko Usui
    • C03C3/253C03C3/064C03C3/155C03C3/14
    • C03C4/02C03C3/14C03C3/15C03C3/155C03C3/253
    • The invention provides an optical glass for press molding which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having an excellent visible light transmittance; and (5) it has excellent resistance to devitrification during preparation of a preform. The optical glass for press molding has a refractive index nd of 1.925 or more, an Abbe's number νd of 10 to 30, and a glass composition, in % by mass, of 20 to 80% Bi2O3, 10 to 30% B2O3, and 0 to 5.5% GeO2 and is substantially free of lead component, arsenic component, and F component.
    • 本发明提供了一种用于压制成型的光学玻璃,其可以满足以下所有要求:(1)其不含环境不理想的组分; (2)可以轻松实现低玻璃化转变点; (3)折射率高,色散高; (4)可以容易地提供具有优异的可见光透射率的玻璃; 和(5)在制备预成型件时具有优异的耐失透性。 用于压制成形的光学玻璃的折射率nd为1.925以上,阿贝数n为10〜30,玻璃组合物的质量%为20〜80%Bi 2 O 3,10〜30%B 2 O 3, 和0〜5.5%的GeO 2,并且基本上不含铅成分,砷成分和F成分。
    • 46. 发明申请
    • ABRASIVE GRAINS CLASSIFYING APPARATUS
    • 磨砂颗粒分级装置
    • US20100243540A1
    • 2010-09-30
    • US12749774
    • 2010-03-30
    • Fumio SatoTakashi YoshidaToshiya HirataKoji Saito
    • Fumio SatoTakashi YoshidaToshiya HirataKoji Saito
    • B07B1/00
    • B07B1/14B07B2201/04B24B57/00
    • An abrasive grains classifying apparatus is used to classify abrasive grains based on their sizes that can be determined by distances between mutually opposed surfaces of the respective abrasive grains. The abrasive grains classifying apparatus is provided with: a first gap portion 35 which includes two rollers 24 and 32 disposed at a predetermined distance L2 from each other and also which classifies the abrasive grains 60 into first abrasive grains 60b and 60c capable of passing through between the rollers 24 and 32 and second abrasive grains 60a incapable of passing through between the two rollers 24 and 32; and a second gap portion 54 which includes two rollers 54 and 69 disposed at a distance L3 smaller than the distance L2 in the first gap portion 35 from each other.
    • 磨粒分级装置用于根据其各自的磨粒相互相对的表面之间的距离可确定的尺寸对磨粒进行分类。 磨粒分级装置设置有:第一间隙部分35,其包括彼此以预定距离L2设置的两个辊24和32,并且还将磨粒60分类成能够穿过第二磨粒60b和60c之间的第一磨粒60b和60c 辊24和32以及不能穿过两个辊24和32之间的第二磨料颗粒60a; 以及第二间隙部分54,其包括设置在比第一间隙部分35中的距离L2小的距离L3处的彼此相对的两个辊54和69。
    • 50. 发明授权
    • Methacrylic resin composition for optical discs
    • 用于光盘的甲基丙烯酸树脂组合物
    • US5252440A
    • 1993-10-12
    • US866303
    • 1992-04-13
    • Fumio SatoYasunori ShimomuraMasaaki Kishimura
    • Fumio SatoYasunori ShimomuraMasaaki Kishimura
    • C08K5/101G03C1/00
    • C08K5/101Y10S430/146
    • A methacrylic resin composition for optical discs comprising 100 parts by weight of a copolymer composed of from 95 to 99.7% by weight of methyl methacrylate (A) and from 0.3 to 5% by weight of at least one monomer (B) selected from the group consisting of methyl acrylate, ethyl acrylate and butyl acrylate, and having a heat distortion temperature of at least 95.degree. C., a melt flow rate of from 1.0 to 10.0 g/10 min and a tensile strength of at least 660 kg/cm.sup.2, and from 0.05 to 2.0 parts by weight of at least one releasing agent (C) selected from the group consisting of a fatty acid alkyl ester of the formula R.sub.1 COOR.sub.2 wherein each of R.sub.1 and R.sub.2 is an alkyl group having from 5 to 20 carbon atoms, cetanol and a stearic acid glycerol ester.
    • 一种用于光盘的甲基丙烯酸树脂组合物,包括100重量份由95至99.7重量%的甲基丙烯酸甲酯(A)和0.3至5重量%的至少一种选自以下的单体(B)的共聚物 由丙烯酸甲酯,丙烯酸乙酯和丙烯酸丁酯组成,热变形温度为95℃以上,熔体流动速率为1.0〜10.0g / 10min,拉伸强度为660kg / cm 2以上, 和0.05〜2.0重量份的选自由式R 1 COOR 2的脂肪酸烷基酯组成的组中的至少一种脱模剂(C),其中R1和R2各自为具有5至20个碳原子的烷基, 鲸蜡醇和硬脂酸甘油酯。