公开(公告)号：US20130337216A1

公开(公告)日：2013-12-19

申请号：US13981528

申请日：2011-01-27

申请人： Yasunobu Higashika ,  Takao Tagiri

发明人： Yasunobu Higashika ,  Takao Tagiri

IPC分类号： G11B7/24038

CPC分类号： G11B7/24038 ,  G11B7/2403 ,  G11B7/24047 ,  G11B7/24097

摘要： In an optical disc including a discoid optical-disc substrate and a coating film formed on the optical-disc substrate, the optical-disc substrate includes a first region including the innermost periphery thereof and having a projection formed on the whole of the first region, and a second region located outside of the first region. The coating layer is formed on the second region. Before the coating film is formed, the thickness of the optical-disc substrate at the first region is greater than the thickness of the optical-disc substrate at the second region. After the coating film is formed, the total thickness of the optical-disc substrate at the second region and the coating film is greater than the thickness of the optical-disc substrate at the first region.

摘要翻译： 在包括盘状光盘基片和形成在光盘基片上的涂膜的光盘中，光盘基片包括一第一区域，该第一区域包括其最内周边并具有形成在整个第一区域上的突起， 以及位于所述第一区域外侧的第二区域。 涂层形成在第二区域上。 在形成涂膜之前，第一区域处的光盘基板的厚度大于第二区域处的光盘基板的厚度。 在形成涂膜之后，第二区域处的光盘基板和涂膜的总厚度大于第一区域处的光盘基板的厚度。

公开(公告)号：US06464485B1

公开(公告)日：2002-10-15

申请号：US09599615

申请日：2000-06-23

申请人： Tetsuya Iida ,  Noriyoshi Shida ,  Keiji Suga ,  Kenichi Ishiguro ,  Yasunobu Higashika ,  Atsushi Sato ,  Kunitoshi Katagiri

发明人： Tetsuya Iida ,  Noriyoshi Shida ,  Keiji Suga ,  Kenichi Ishiguro ,  Yasunobu Higashika ,  Atsushi Sato ,  Kunitoshi Katagiri

IPC分类号： B29D1700

CPC分类号： B29C45/263 ,  B29C45/568 ,  B29D17/005 ,  Y10S425/81

摘要： An ultrasonic injection mold for an optical disk includes a movable die and a fixed die; a disk molding cavity formed between the movable die and the fixed die; a stamper positioned at the bottom of the cavity for forming a pit on a surface of the disk; and an ultrasonic generation device provided on the movable die or fixed die for applying ultrasonic waves to the cavity in performing infection molding. One or more slits are formed on the movable die and the fixed die in the direction which crosses the radial direction of the cavity. The ultrasonic injection mold minimizes the amplitude of the ultrasonic transmitted in the radial direction of the cavity.

摘要翻译： 一种用于光盘的超声注射模具包括可动模和固定模; 形成在可动模和固定模之间的盘模腔; 位于所述腔的底部的压模，用于在所述盘的表面上形成凹坑; 以及设置在可动模具或固定模具上的超声波产生装置，用于在进行感染模塑时向腔体施加超声波。 在可动模具和固定模具上沿与空腔的径向交叉的方向形成一个或多个狭缝。 超声波注射模具使得在空腔的径向方向上传递的超声波的振幅最小化。