Optical disk apparatus and method for recording and reproducing an optical disk
    61.
    发明授权
    Optical disk apparatus and method for recording and reproducing an optical disk 有权
    用于记录和再现光盘的光盘装置和方法

    公开(公告)号:US07307927B2

    公开(公告)日:2007-12-11

    申请号:US10879779

    申请日:2004-06-30

    IPC分类号: G11B7/00

    摘要: A method and an optical disk apparatus that can accurately and stably correct the spherical aberration even for a blank write-once optical disk and can detect a spherical aberration error signal with a simple construction of parts in real time. In a blank write-once disk 20, the tracking servo is switched to an inoperative state, push-pull signals from outputs of the photodetector 12 are detected in a state of “in focus” and in a state of “out focus,” respectively, by a push-pull signal generation circuit 34, and.the amplitudes of these push-pull signals are subjected to difference calculation in a spherical aberration error detector 31 to obtain a spherical aberration error signal A. Then, the spherical aberration is corrected with this spherical aberration error signal A, and subsequently a specific pattern signal is recorded in a trial writing area, this signal is reproduced in the state of “in focus” and in the state of “out focus,” respectively, the amplitude of each reproduced signal is acquired by a reproduced signal generation circuit 32, these amplitudes are subjected to difference calculation in the spherical aberration error detector 31 to obtain a spherical aberration error signal B. The spherical aberration is corrected with this.

    摘要翻译: 一种方法和光盘装置,即使对于空白一次写入光盘也能够准确且稳定地校正球面像差,并且可以实时地以简单的部件构造来检测球面像差误差信号。 在空白的一次写入盘20中,跟踪伺服被切换到不工作状态,在“对焦”的状态下分别检测来自光检测器12的输出的推挽信号,处于“熄焦”的状态 通过推挽信号发生电路34,并且在球面像差误差检测器31中对这些推挽信号的振幅进行差分计算,以获得球面像差误差信号A.然后,用 该球面像差误差信号A以及随后的特定图案信号被记录在试写区域中,该信号分别以“对焦”的状态再现,并且在“对焦”的状态下分别再现 信号由再现信号生成电路32获取,这些幅度在球面像差误差检测器31中进行差分计算,以获得球面像差误差信号B.球面像差为 用此修正。

    Rolling bearing
    62.
    发明申请
    Rolling bearing 有权
    滚动轴承

    公开(公告)号:US20070151634A1

    公开(公告)日:2007-07-05

    申请号:US10586851

    申请日:2005-01-18

    申请人: Shinji Fujita

    发明人: Shinji Fujita

    IPC分类号: C23C8/32 C23C8/26

    摘要: A rolling bearing comprises an outer ring, an inner ring and rolling elements rotatably disposed between the outer and inner rings. At least a member selected from the outer ring, inner ring and rolling elements has C content of 0.2 or more and 0.6 or less wt %, Cr content of 2.5 or more and 7.0 or less wt %, Mn content of 0.5 or more and 2.0 or less wt %, Si content of 0.1 wt % or more and 1.5 or less wt %, and Mo content of 0.5 or more and 3.0 or less wt %. Further, a carburizing or carbo-nitriding treatment, a quenching treatment and a tempering treatment are applied to the selected member. Furthermore, retained austenite on a surface thereof is 15 % or more and 45 % or less vol. %, and the surface hardness thereof is HRC60 or more.

    摘要翻译: 滚动轴承包括外圈,内圈和可旋转地设置在外圈和内圈之间的滚动元件。 从外圈,内圈和滚动体中选择的至少一种元素的C含量为0.2以上且0.6以下,Cr含量为2.5以上且7.0以下,Mn含量为0.5以上且2.0以下 或更少重量%,Si含量为0.1重量%以上且1.5重量%以下,Mo含量为0.5以上且3.0以下wt%以下。 此外,对所选择的构件施加渗碳或碳氮化处理,淬火处理和回火处理。 此外,其表面上的残留奥氏体为15%以上且45%以下。 %,其表面硬度为HRC60以上。

    Polyester film for forming
    64.
    发明申请
    Polyester film for forming 有权
    聚酯薄膜成型

    公开(公告)号:US20060280959A1

    公开(公告)日:2006-12-14

    申请号:US10570162

    申请日:2004-08-30

    IPC分类号: C08J5/18 C08L67/02

    摘要: A polyester film for forming which is excellent in formability especially at low temperatures and low pressures and in solvent resistance and heat resistance and is reduced in environmental burden. The polyester film for forming is a biaxially oriented polyester film comprising a copolyester as a component, and is characterize in that (1) the stress at 100% elongation of the film in each of the machine direction and the transverse direction is 10 to 1,000 MPa at 25° C. and is 1 to 100 MPa at 100° C.; (2) the storage viscoelasticity (E′) of the film in each of the machine direction and the transverse direction is 10 to 1,000 MPa at 100° C. and is 5 to 40 MPa at 180° C.; and (3) the degree of heat distortion (initial load, 49 mN) of the film in the machine direction is −3% to +3% at 175° C.

    摘要翻译: 一种成型性优异的成型性聚酯膜,特别是在低温低压,耐溶剂性,耐热性方面,降低了环境负荷。 作为成型用聚酯膜是以共聚酯为成分的双轴取向聚酯膜,其特征在于,(1)在纵向和横向上的膜的伸长率为100%时的应力为10〜1000MPa 在25℃下,在100℃下为1〜100MPa。 (2)薄膜在机器方向和横向方向上的储存粘弹性(E')在100℃下为10〜1000MPa,在180℃下为5〜40MPa。 和(3)在175℃下,膜的纵向热变形程度(初始载荷49mN)为-3%〜+ 3%

    Polyester films
    66.
    发明申请
    Polyester films 有权
    聚酯薄膜

    公开(公告)号:US20050118442A1

    公开(公告)日:2005-06-02

    申请号:US10501092

    申请日:2003-01-09

    摘要: The present invention is a polyester film obtained by blending 10-90 wt % of polyester (A) containing ethylene terephthalate as a main constituent component and 90-10 wt % of crystalline polyester (B) different from this polyester (A), which has a half value width of a recrystallization peak obtained by a differential scanning calorimeter (DSC) by lowering temperature of not more than 0.25. The crystalline polyester (B) is preferably a polyester selected from polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT) and polyethylene 2,6 naphthalate (PEN). According to the polyester of the present invention, a polyester film superior in mechanical characteristic and design property and having high crystallinity, which can be used alone or adhered to a metal sheet and which is free of whitening even when the film is heat treated at near or not lower than the melting point can be obtained, and further, a polyester film having such superior resistance to whitening (design property), which is not easily damaged, can be obtained.

    摘要翻译: 本发明是将10-90重量%的含有对苯二甲酸乙二醇酯作为主要成分的聚酯(A)和不同于该聚酯(A)的90〜10重量%的结晶性聚酯(B) 通过差示扫描量热计(DSC)通过降低温度不大于0.25获得的再结晶峰的半值宽度。 结晶性聚酯(B)优选为选自聚对苯二甲酸丁二醇酯(PBT),聚对苯二甲酸丙二醇酯(PTT),聚萘二甲酸乙二醇酯(PEN)等的聚酯。 根据本发明的聚酯,具有机械特性和设计性能优异且结晶性高的聚酯膜,其可以单独使用或粘附到金属片上,即使在近乎热处理的情况下也不会发白 或不低于熔点,此外,可以获得不易损坏的耐美白性(设计性)优异的聚酯膜。