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    ATS
    2.
    发明专利
    ATS 未知

    公开(公告)号：DE60133037D1

    公开(公告)日：2008-04-10

    申请号：DE60133037

    申请日：2001-12-10

    Applicant: SONY CORP

    Inventor： NAKANO JUN ,  SHIMIZU JUN ,  MINEMURA KEN

    IPC: B29C45/26 ,  B29C45/17 ,  B29C45/38 ,  B29C45/42 ,  B29D17/00 ,  G11B5/73 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00

    Abstract: It is possible to obtain a disk substrate in which an edge of a center hole is free of flash. The disk substrate (23) in which the center hole (24) is provided with a straight portion (24a) and a tapered portion (24b), and an edge on the side of a signal transfer surface (22) of the tapered portion (24b) is provided with an R surface or C surface (24c), a mold apparatus optimum for molding the disk substrate (23), and a disk taking-out apparatus.

    4.
    发明专利
    未知

    公开(公告)号：DE60133037T2

    公开(公告)日：2009-03-05

    申请号：DE60133037

    申请日：2001-12-10

    Applicant: SONY CORP

    Inventor： NAKANO JUN ,  SHIMIZU JUN ,  MINEMURA KEN

    IPC: B29C45/26 ,  B29C45/17 ,  B29C45/38 ,  B29C45/42 ,  B29D17/00 ,  G11B5/73 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00

    Abstract: It is possible to obtain a disk substrate in which an edge of a center hole is free of flash. The disk substrate (23) in which the center hole (24) is provided with a straight portion (24a) and a tapered portion (24b), and an edge on the side of a signal transfer surface (22) of the tapered portion (24b) is provided with an R surface or C surface (24c), a mold apparatus optimum for molding the disk substrate (23), and a disk taking-out apparatus.

    Method for manufacturing optical disk and method for making optical master disk
    7.
    发明专利
    Method for manufacturing optical disk and method for making optical master disk 审中-公开
    制造光盘的方法和制作光盘的方法

    公开(公告)号：JP2003317329A

    公开(公告)日：2003-11-07

    申请号：JP2002111799

    申请日：2002-04-15

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： ARAKAWA NORIYUKI ,  AKIYAMA SHOJI ,  AKIYAMA YUJI ,  MINEMURA KEN

    IPC: B29C45/26 ,  B29L17/00 ,  G11B7/26

    Abstract: PROBLEM TO BE SOLVED: To make the focus error and noise of a low-frequency region of an optical disk lower by averting the formation of rubbing flaws in injection molding.
    SOLUTION: A resin is injection molded by using molds mounted with an optical master disk formed with micro-ruggedness, by which an optical disk substrate is formed. In the injection molding, a buffer material is interposed between the molds and the optical master disk. The buffer material has a coefficient of friction below 0.2. The optical master disk consists of, for example, Si or glass. More particularly, the external diameter working of the optical master disk is performed by blowing powder thereto. The formation of the optical disk of a laminated structure by packing a UV curing resin between the molds mounted with the stamper, then irradiating the resin with UV rays to cure the UV curing resin is also possible.
    COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：通过避免注射成型中的摩擦缺陷的形成，使光盘的低频区域的聚焦误差和噪声降低。 解决方案：通过使用安装有形成有微凹凸的光学母盘的模具注塑成型树脂，通过该树脂形成光盘基板。 在注射成型中，在模具和光学母盘之间插入缓冲材料。 缓冲材料的摩擦系数低于0.2。 光学母盘由例如Si或玻璃构成。 更具体地说，光学母盘的外径加工是通过向其中吹粉而进行的。 通过在安装有压模的模具之间填充UV固化树脂，然后用紫外线照射树脂以固化UV固化树脂，形成层压结构的光盘也是可能的。 版权所有（C）2004，JPO

    DISK MOLDING MACHINE
    8.
    发明专利
    DISK MOLDING MACHINE 失效

    公开(公告)号：JPH1148291A

    公开(公告)日：1999-02-23

    申请号：JP20922497

    申请日：1997-08-04

    Applicant: SONY CORP

    Inventor： ARAKAWA NORIYUKI ,  AKIYAMA YUJI ,  MINEMURA KEN

    IPC: B29C45/26 ,  G11B7/26

    Abstract: PROBLEM TO BE SOLVED: To obtain a disk molding machine for molding a disk without flash on an outer peripheral part of a disk board by reducing occurrence of a flared bulge at the peripheral part of the board to a minimum limit. SOLUTION: In the disk molding machine comprising an outer peripheral ring 6 for holding a stamper 5 for molding an outer periphery of a disk board and molding (transferring) a signal pit, a protrusion and recess surface made of a plurality of concentric lands 21 and grooves 22 is formed on a holding surface for holding the stamper 5 on the ring 6, and the outer periphery of the stamper 5 is press held by the lands 21.

    MOLD APPARATUS FOR MOLDING DISK SUBSTRATE
    9.
    发明专利
    MOLD APPARATUS FOR MOLDING DISK SUBSTRATE 失效

    公开(公告)号：JPH09136337A

    公开(公告)日：1997-05-27

    申请号：JP29525395

    申请日：1995-11-14

    Applicant: SONY CORP

    Inventor： SHIMIZU JUN ,  TOMITA TAKASHI ,  ISHIMORI HIROSHI ,  MINEMURA KEN

    IPC: B29C33/38 ,  B29C45/26 ,  G11B7/26

    Abstract: PROBLEM TO BE SOLVED: To improve the precision of disk substrate molding by forming a plated part on the surface of one cavity side of a mold. SOLUTION: A fixed mold 2 which constitutes a molding cavity 4 and a movable mold 3 which is arranged opposite to the fixed mold 2 and constitutes the cavity 4 with the fixed mold 2 are provided. On the surface 10 of the cavity 4 side of either of the fixed mold 2 or the movable mold 3 is formed a plated part which molds a reading surface of information signals on one main surface of a disk substrate.

    MOLD APPARATUS FOR MOLDING DISK-SHAPED RECORDING MEDIUM BOARD AND METHOD FOR MOLDING DISK-SHAPED RECORDING MEDIUM BOARD BY USING THE APPARATUS
    10.
    发明专利
    MOLD APPARATUS FOR MOLDING DISK-SHAPED RECORDING MEDIUM BOARD AND METHOD FOR MOLDING DISK-SHAPED RECORDING MEDIUM BOARD BY USING THE APPARATUS 失效

    公开(公告)号：JPH0994861A

    公开(公告)日：1997-04-08

    申请号：JP25425595

    申请日：1995-09-29

    Applicant: SONY CORP

    Inventor： TOMITA TAKASHI ,  MINEMURA KEN

    IPC: B29C45/26 ,  B29C45/73 ,  B29C45/78 ,  B29L17/00

    Abstract: PROBLEM TO BE SOLVED: To improve productivity and to improve transferring properties of an uneven pattern formed on a stamper by controlling the temp. by the first temp. controlling means by interlocking the first circuit for temp. conditioning with the molding cycle of a disk-shaped recording medium board. SOLUTION: A hot water for temp. conditioning is circulated and fed from the first temp. controlling machine 31 to the first circuits 21A and 21B for temp. conditioning by actuating a valve mechanism 29 to elevate the temp. of movable mold 11 and 12 to a high temp., condition. By arranging respectively the first circuits 21A and 21B for temp. conditioning so as to bring them closely to the cavity constituting parts of fixed and movable molds 11 and 12, the cavities are efficiently heated to a temp. being lower than the glass transition temp. and where the fluidity of a material resin can be sufficiently held. Therefore, as the material resin holds sufficient fluidity in the cavities held at a set temp., the resin is precisely filled into a fine uneven pattern formed on the main face of a stamper. It is possible thereby to form a board on which the uneven pattern formed on the stamper is precisely transferred.

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