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    • 91. 发明授权
    • Dielectric ceramic composition and monolithic ceramic capacitor
    • 介电陶瓷组合物和单片陶瓷电容器
    • US06346497B1
    • 2002-02-12
    • US09388173
    • 1999-09-01
    • Tomoyuki NakamuraShinobu MizunoHarunobu Sano
    • Tomoyuki NakamuraShinobu MizunoHarunobu Sano
    • C04B35468
    • C04B35/4682H01G4/1227
    • A dielectric ceramic composition exhibiting a firing temperature of 1300° C. or less, a dielectric constant of 200 or more, a low loss under a high-frequency-high-voltage alternating current, high insulation resistance at high electric field strength, characteristics satisfying the B and X7R characteristics, and excellent high-temperature load properties. It contains a barium titanate solid solution and additive components, and is represented by the formula, ABO3+aR and bM, wherein ABO3 represents the barium titanate solid solution having a perovskite structure; R represents an oxide of at least one metal, M represents an oxide of at least one other metal, a and b respectively represent the molar ratios of single metal oxides and a sintering additive, wherein 0.950≦A/B (molar ratio)≦1.050, 0.12
    • 显示烧成温度为1300℃以下,介电常数为200以上的介电陶瓷组合物,高频高交流电时的低损耗,高电场强度下的高绝缘电阻,满足 B和X7R特性,以及优异的高温负载特性。 它含有钛酸钡固溶体和添加剂组分,由式ABO 3 + aR和bM表示,其中ABO 3表示具有钙钛矿结构的钛酸钡固溶体; R表示至少一种金属的氧化物,M表示至少一种其它金属的氧化物,a和b分别表示单一金属氧化物和烧结添加剂的摩尔比,其中0.950≤A/ B(摩尔比) = 1.050,0.12
    • 93. 发明授权
    • Method of polymerizing vinyl chloride
    • 聚合氯乙烯的方法
    • US5066744A
    • 1991-11-19
    • US448637
    • 1989-12-11
    • Shuji SuyamaTomoyuki Nakamura
    • Shuji SuyamaTomoyuki Nakamura
    • C08F4/28C08F4/36C08F14/00C08F14/06
    • C08F14/06
    • A polyvinyl chloride polymer or copolymer having excellent thermal resistance and being free from FEs and offensive smell can be obtained in a high yield through a polymerization reaction of vinyl chloride monomer alone or together with a vinyl monomer copolymerizable therewith by the use of a combination system polymerization initiator consisting of (A) .alpha.,.alpha.'-bis(neodecanoylperoxy)-diisopropylbenzene, and (B) at least one of peroxy ester, diacyl peroxide and peroxy dicarbonate, each of which has a 10-hour half-life period temperature within the range of 40.degree.-65.degree. C. in its 0.1 mol concentration solution in benzene.
    • 通过单独的氯乙烯单体或与其共聚的乙烯基单体的聚合反应,可以通过使用组合体系聚合法获得具有优异耐热性且不含有FE和异味的聚氯乙烯聚合物或共聚物 由(A)α,α'-双(新癸酰过氧基) - 二异丙基苯和(B)过氧酯,二酰基过氧化物和过氧化二碳酸酯中的至少一种引发剂组成的引发剂,其中每一个在其内具有10小时的半衰期温度 范围为40°-65℃,在其0.1mol浓度的苯溶液中。
    • 98. 发明授权
    • Zoom lens and image pickup apparatus including the same
    • 缩放透镜和包括其的图像拾取装置
    • US08593736B2
    • 2013-11-26
    • US13438888
    • 2012-04-04
    • Tomoyuki Nakamura
    • Tomoyuki Nakamura
    • G02B15/14
    • G02B15/173
    • A zoom lens includes, in order from an object side: a first lens unit having a positive refractive power which does not move for varying magnification; a second lens unit having a negative refractive power which moves for varying magnification; a third lens unit having a positive refractive power which moves for varying magnification; and a fourth lens unit having a positive refractive power which does not move for varying magnification, in which: the first lens unit includes a first sub lens unit which does not move for focusing and a second sub lens unit having a positive refractive power which moves for focusing; the first sub lens unit includes three lenses having negative, positive, and positive refractive powers; and each of the elements is appropriately set.
    • 变焦透镜从物体的顺序依次包括具有正偏转光焦度的第一透镜单元,其不会为变化的倍率而移动; 具有负折射力的第二透镜单元,其以变化的倍率移动; 具有正折射力的第三透镜单元,其移动以变化放大倍数; 以及具有正折射力的第四透镜单元,其对于变化的放大倍率不移动,其中:第一透镜单元包括不移动用于聚焦的第一子透镜单元和具有正折射力的第二子透镜单元, 用于聚焦; 第一子透镜单元包括具有负的,正的和正的折射光焦度的三个透镜; 并且适当地设置每个元件。
    • 99. 发明授权
    • Autofocusing zoom lens
    • 自动对焦变焦镜头
    • US08374497B2
    • 2013-02-12
    • US13535960
    • 2012-06-28
    • Tomoyuki Nakamura
    • Tomoyuki Nakamura
    • G03B17/00
    • G03B13/36G02B7/08G02B7/282H04N5/23212
    • In an autofocusing zoom lens, a depth of focus ε is obtained based on an aperture value Fno of a variable diaphragm and a diameter of a permissible circle of confusion δ. A focal position variation amount Δsk for a predetermined positional displacement amount ΔFp0 of a focusing lens unit is obtained according to a position Fp of the focusing lens unit and a variable magnification state Zp. If a predetermined variation amount ΔFp of the focusing lens unit satisfies a first condition, the focusing lens unit is not driven. If the first condition is not satisfied and a second condition is satisfied, the focusing lens unit is driven based on a second autofocusing unit, and if the second condition is not satisfied, the focusing lens unit is driven based on a first autofocusing unit.
    • 在自动对焦变焦镜头中,焦距&egr 是基于可变隔膜的孔径值Fno和容许的混淆圈的直径δ获得的。 根据聚焦透镜单元的位置Fp和可变放大状态Zp,获得聚焦透镜单元的预定位置偏移量&Dgr; Fp0的焦点位置变化量&Dgr; sk。 如果聚焦透镜单元的预定变化量&Dgr; Fp满足第一条件,则不驱动聚焦透镜单元。 如果不满足第一条件并且满足第二条件,则基于第二自动对焦单元驱动聚焦透镜单元,并且如果不满足第二条件,则基于第一自动对焦单元来驱动聚焦透镜单元。
    • 100. 发明申请
    • AUTOFOCUSING ZOOM LENS
    • 自动对焦变焦镜头
    • US20120269500A1
    • 2012-10-25
    • US13535960
    • 2012-06-28
    • Tomoyuki Nakamura
    • Tomoyuki Nakamura
    • G03B17/00
    • G03B13/36G02B7/08G02B7/282H04N5/23212
    • In an autofocusing zoom lens, a depth of focus ε is obtained based on an aperture value Fno of a variable diaphragm and a diameter of a permissible circle of confusion δ. A focal position variation amount Δsk for a predetermined positional displacement amount ΔFp0 of a focusing lens unit is obtained according to a position Fp of the focusing lens unit and a variable magnification state Zp. If a predetermined variation amount ΔFp of the focusing lens unit satisfies a first condition, the focusing lens unit is not driven. If the first condition is not satisfied and a second condition is satisfied, the focusing lens unit is driven based on a second autofocusing unit, and if the second condition is not satisfied, the focusing lens unit is driven based on a first autofocusing unit.
    • 在自动对焦变焦镜头中,焦距&egr 是基于可变隔膜的孔径值Fno和容许的混淆圈的直径δ获得的。 根据聚焦透镜单元的位置Fp和可变放大状态Zp,获得聚焦透镜单元的预定位置偏移量&Dgr; Fp0的焦点位置变化量&Dgr; sk。 如果聚焦透镜单元的预定变化量&Dgr; Fp满足第一条件,则不驱动聚焦透镜单元。 如果不满足第一条件并且满足第二条件,则基于第二自动对焦单元驱动聚焦透镜单元,并且如果不满足第二条件,则基于第一自动对焦单元来驱动聚焦透镜单元。