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    • 21. 发明申请
    • INFORMATION RECORDING MEDIUM AND MASTER EXPOSING APPARATUS
    • 信息记录介质和主要曝光装置
    • US20100034074A1
    • 2010-02-11
    • US12515075
    • 2007-11-28
    • Hidehiro SasakiMasae KuboKenjirou Kiyono
    • Hidehiro SasakiMasae KuboKenjirou Kiyono
    • G11B7/24
    • G11B7/24079G11B7/00736G11B7/261
    • Stable focus servo and tracking servo are realized in an information recording medium having a plurality of recording regions having different track pitches and groove shapes.An information recording medium having a recording track formed by a concave-convex pattern, wherein the recording track includes a first recording region R1, a second recording region R2 and a recording region transition section Sx arranged between the first recording region R1 and the second recording region R2; a track pitch tp1, a groove width w1 and a groove depth d1 in the first recording region R1, and a track pitch tp2, a groove width w2 and a groove depth d2 in the second recording region R2 satisfy the following formula (1) and the following formulae (2) and/or (3): 0
    • 在具有不同轨道间距和凹槽形状的多个记录区域的信息记录介质中实现稳定聚焦伺服和跟踪伺服。 一种信息记录介质,具有由凹凸图案形成的记录磁道,其中记录磁道包括第一记录区域R1,第二记录区域R2和布置在第一记录区域R1和第二记录区域之间的记录区域过渡区段Sx 区R2; 第一记录区域R1中的轨道间距tp1,槽宽度w1和槽深度d1以及第二记录区域R2中的轨道间距tp2,槽宽度w2和槽深度d2满足下式(1)和 以下公式(2)和/或(3):01-tp2 | (1)01-w2 | (2)01-d2 | (3); 记录区域过渡部分Sx包括轨道间距从tp1变为tp2的轨道间距过渡部分Stp和槽宽度从w1变化到w2的槽形过渡部分Sg和/或槽深度从d1变化到 d2; 轨道间距过渡部分Stp和槽形过渡部分Sg至少部分重叠以共享区域SL。
    • 23. 发明申请
    • Composite foamed polypropylene resin molding and method of producing same
    • 复合发泡聚丙烯树脂成型及其制造方法
    • US20070026218A1
    • 2007-02-01
    • US11529209
    • 2006-09-29
    • Akinobu HiraKeiichi HashimotoHidehiro Sasaki
    • Akinobu HiraKeiichi HashimotoHidehiro Sasaki
    • B32B7/02B32B3/00B32B3/26
    • B29C44/0469B29C44/3461B29C44/445Y10T428/24992Y10T428/249953Y10T428/249971Y10T428/249977Y10T428/249981
    • A composite foamed polypropylene resin molding including a plurality of sections which are fuse-bonded to each other, at least two of which differ from each other in color, apparent density, composition and/or mechanical strengths, each of which is formed from expanded polypropylene resin beads, and each of which shows a high temperature endothermic peak in a DSC curve thereof. At least one of the sections satisfies conditions (d) to (f) at the same time: (d) to be formed from specific expanded polypropylene resin beads of a base resin having a tensile modulus of at least 1,200 MPa, (e) to have an apparent density D2 of 10-500 g/L, and (f) to have such a high temperature endothermic peak with a calorific of E2 J/g, wherein D2 and E2 have the relationship 20−0.020×D2≦E2≦65−0.100×D2. The composite molding may be prepared by filling expanded polypropylene resin beads in each of a plurality of contiguous spaces defined in a mold cavity and heating the expanded beads to fuse-bond respective expanded beads together into a unitary body. At least one of the spaces is filled with the specific expanded polypropylene resin beads.
    • 一种复合发泡聚丙烯树脂模制品,其包括彼此熔合键合的多个部分,其中至少两个在颜色,表观密度,组成和/或机械强度方面彼此不同,每个部分由发泡聚丙烯 树脂珠,其DSC曲线中都显示高温吸热峰。 至少一个部分同时满足条件(d)至(f):(d)由具有至少1200MPa的拉伸模量的基础树脂的特定发泡聚丙烯树脂珠粒形成,(e)至 具有10-500g / L的表观密度D2和(f)具有发热量为E2J / g的这样的高温吸热峰,其中D2和E2具有20-0.020xD2 <= E2 <= 65-0.100xD2。 可以通过将限定在模腔中的多个连续空间中的每一个中填充发泡聚丙烯树脂珠并加热发泡珠以将相应的发泡珠熔合到一体中来制备复合模制品。 至少一个空间用特定的发泡聚丙烯树脂珠填充。