公开(公告)号：JP2007001181A

公开(公告)日：2007-01-11

申请号：JP2005185075

申请日：2005-06-24

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  AKIYAMA SHOJI ,  MINEMURA KEN ,  YAMAMOTO MASANOBU

IPC: B29C45/73 ,  B29C45/37 ,  B29C45/78 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for molding capable of molding a disc substrate having a small deformation by heat stress and molecular orientation for example and excellent in transfer property by controlling a surface region temperature of a mold stamper and cavity side. SOLUTION: Movable side heaters 41a-41c as a heating part are provided in a movable side platen 46b and stationary side heaters 51a-51c are provided in a stationary side platen 46a. This configuration enables controlling the surface region temperature of the cavity 47 side so as to lower the temperature from the inner circumference to the outer circumference. The disc substrate having a small deformation by heat stress and molecular orientation and excellent in transfer property can be molded by this control. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2006026967A

公开(公告)日：2006-02-02

申请号：JP2004205911

申请日：2004-07-13

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ARAKAWA NORIYUKI ,  AKIYAMA SHOJI

IPC: B29C45/73 ,  B29C45/17 ,  B29L17/00 ,  G11B7/24 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To form a thin cover layer by a molding method without using a film.
SOLUTION: A molding material is injected in a cavity 206 from a resin injection port 208. A stamper 205 is held in the vicinity of its outermost periphery by an outer peripheral ring 202. Temperature regulators 204 and 211 are provided for the purpose of regulating the temperature of a mold and and a fixed heater part 203 is provided between the stamper 205 and a fixed mirror mold 201 while a movable heater part 210 is provided between the cavity 206 and a movable mirror mold 212. A resin is injected in a stage that a ceramic heater is turned ON to heat the surface of the cavity 206 to a desired temperature and the ceramic heater is turned OFF to cool the surface of the cavity 206 to a predetermined temperature. The ON-OFF timing of the ceramic heater is set in connection with the movement of the molding machine.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过不使用膜的成型方法形成薄的覆盖层。 解决方案：将模制材料从树脂注入口208注入腔206.压模205通过外周环202保持在其最外周附近。为此目的提供温度调节器204和211 调节模具的温度和固定加热器部件203设置在压模205和固定镜模具201之间，同时可动加热器部件210设置在空腔206和可移动镜模具212之间。树脂被注入 将陶瓷加热器接通以将腔206的表面加热到所需温度的阶段，并且陶瓷加热器关闭以将腔206的表面冷却至预定温度。 陶瓷加热器的开 - 关定时与成型机的移动有关。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005056536A

公开(公告)日：2005-03-03

申请号：JP2003289210

申请日：2003-08-07

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ARAKAWA NORIYUKI ,  YAMAMOTO MASANOBU ,  AKIYAMA SHOJI ,  TORIMOTO MASASHI

IPC: G11B7/24 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To provide a configuration laminated with two or more layers of information recording layers having information rugged surfaces, formed with a light transmission layer 3 by a transparent thin film body on a photoirradiation side and formed with a rugged information layer on the light transmission layer itself and to manufacture the light transmission layer, i.e. the transparent thin film body having high optical property by injection molding. SOLUTION: The information recording medium disk 1 is constituted by laminating a disk substrate 2 formed with the rugged information surface constituting the information recording layer 11 on at least one major face and laminating the light transmission layer 3 consisting of the thin film body with a clamping part formed with the rugged information surface through at least a transparent intermediate layer 5 on the major face formed with the information recording layer 11 of the disk substrate 2 and forming a central hole 4. A thick-walled projecting part 3C is formed in the clamping part 31 in the central part of the light transmission layer 3 constituted by the thin film body with the clamping part, by which the injection molding of the light transmission layer 3 having mechanical strength, ease of handling and excellent optical characteristics at a good yield is made possible. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供层叠有具有信息凹凸表面的两层或更多层信息记录层的构造，在光照射侧由透明薄膜体形成有透光层3并形成有坚固的信息 并且制造透光层，即通过注射成型具有高光学特性的透明薄膜体。 解决方案：信息记录介质盘1通过将形成有构成信息记录层11的粗糙的信息表面的盘基板2层叠在至少一个主面上并层叠由薄膜体构成的光透射层3 具有通过至少在形成有盘基板2的信息记录层11的主面上的透明中间层5形成有坚固的信息表面并形成中心孔4的夹紧部分。形成厚壁的突出部分3C 在由具有夹持部的薄膜体构成的透光层3的中央部的夹持部31中，透光层3的注射成型具有机械强度，易于处理和优异的光学特性 良好的产量成为可能。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2003085831A

公开(公告)日：2003-03-20

申请号：JP2001331531

申请日：2001-10-29

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  FURUKI MOTOHIRO ,  IMANISHI SHINGO ,  TAKEDA MINORU

IPC: G11B11/105 ,  B29C35/08 ,  B29C43/02 ,  B29C43/18 ,  B29C43/20 ,  B29C45/26 ,  B29D17/00 ,  G11B7/007 ,  G11B7/26 ,  G11B9/10

Abstract: PROBLEM TO BE SOLVED: To provide a stamper of which surface roughness, thickness unevenness, the deviation in the out-of-roundness of a bore, etc., are suppressed, a method of manufacturing the same, an optical recording medium which can be manufactured by molding using this stamper and a method of manufacturing the same. SOLUTION: A resist film R is formed on a mirror finished surface of a substrate 10 consisting of silicon or glass subjected to mirror finish polishing on its surface and this resist film is exposed by a convergent electron beam or UV laser, etc., and is developed, thereby, the resist films Ra of the patterns corresponding to rugged shapes are formed. Next, the surface of the mirror finished surface of the substrate is processed to the rugged shapes (projecting parts 10a and recessed parts 10b) by dry etching, etc., using the resist films Ra as a mask, by which the stamper 10 (ST) is formed. The medium substrate is formed by injection molding using the resultant stamper and an optical recording laminate and a protective layer are formed, by which the optical recording medium is manufactured.

公开(公告)号：JP2001338446A

公开(公告)日：2001-12-07

申请号：JP2000157991

申请日：2000-05-24

Applicant: SONY CORP

Inventor： NIHEI YASUTOKI ,  ARAKAWA NORIYUKI ,  KAWASE HIROSHI ,  MINEMURA KEN ,  TOBIYAMA TAKEO ,  EJIMA KAZUYUKI

IPC: B29C33/02 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for manufacturing an optical recording medium, by which the productivity of the optical recording medium can be enhanced by rapidly heating a stamper and rapidly cooling the stamper until the prescribed temperature. SOLUTION: This device 100 for manufacturing the optical recording medium is provided with a resin substrate 200, the stamper 120 for transferring the prescribed pattern 122 to the resin substrate 200, a heating means 140 for heating the stamper and a cooling means 160 for cooling the stamper so that the means 140 and 160 are made to retreat independently with respect to the stamper.

公开(公告)号：JP2001189034A

公开(公告)日：2001-07-10

申请号：JP37533899

申请日：1999-12-28

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI

IPC: B29D17/00 ,  G11B7/24 ,  G11B7/257 ,  G11B7/26 ,  G11B11/105

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium having sufficient rotational performance without deformation such as a warp or a sink and capable of sufficiently meeting a trend toward the higher recording density. SOLUTION: A substrate 2 of the optical recording medium has an intermediate layer 8 having a rigidity imparting material and a surface layer 9 formed on at least one principal surface of the intermediate layer 8 and having a rugged pattern 10 formed thereon.

公开(公告)号：JP2000113509A

公开(公告)日：2000-04-21

申请号：JP28438198

申请日：1998-10-06

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  YAMAMOTO MASANOBU ,  WATANABE TOSHIO ,  AOKI SADATAKA

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium capable of maintaining rigidity and attaining lightweight. SOLUTION: This is an information recording medium 1 for recording and reproducing information signals, on a disk like substrate 2, at least a recording layer 4 for recording the information signals and a light transmitting layer 5 are successively formed, the medium is provided with a chucking part 6 for chucking in the center and the side of the substrate 2 opposite to the side where the recording layer 4 on which light from the light transmitting layer 5 is made incident for recording/reproducing the information signals, is formed, is formed in a tapered shape so that it gradually becomes thinner from the end of the chucking part 6 toward the outer circumferential part of the disk-like substrate 2.

公开(公告)号：JP2000082243A

公开(公告)日：2000-03-21

申请号：JP25134798

申请日：1998-09-04

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  YAMAMOTO MASANOBU ,  MASUHARA SHIN ,  FURUKI MOTOHIRO

IPC: G11B7/26 ,  B29C45/26

Abstract: PROBLEM TO BE SOLVED: To make it possible to produce a superflat disk having decreased noises, such as focus errors, by utilizing a sheet stamper obtd. by using a mastering process generally used for optical disks as it is. SOLUTION: This apparatus 10 for production produces the disk-like information recording medium 2 having information recording parts by injection molding in metal molds. The apparatus has the stamper 22 of the thin type metal formed with rugged signals by the mastering process and a reinforcing disk 1 for reinforcing the stamper 22 joined by a low melting alloy to the stamper 22.

公开(公告)号：JPH10289489A

公开(公告)日：1998-10-27

申请号：JP12983697

申请日：1997-05-20

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  KASHIWAGI TOSHIYUKI ,  NAITO MITSUO

IPC: G11B5/842 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To uniformalize the thickness of a light transmissive layer and to make recording high dense by applying an photosetting resin from the center part of rotation, spreading by the rotation and photosetting on a surface made flat by embedding a plugging plate in a center hole and a recessed part of the center part of a substrate. SOLUTION: The substrate 10 is molded by injection-molding a polycarbonate and simultaneously fine ruggedness 12 and the circuit recessed part 20 of the substrate are formed. The recessed part 20 is set to, for example, 30 mm diameter and 0.3 mm depth. An information recording layer 15 is formed by adhering a reflecting layer 14 on the fine ruggedness by Al vapor deposition. The plugging plate 21 composed of the polycarbonate is inserted into the recessed part 20. In such a case, the thickness of the plugging plate 21 is set so that the upper surface of the inserted plugging plate 21 is leveled with the substrate or slightly projected over the substrate 10. The liquid photosetting resin is dropped on the center of the plugging plate 21 and is spread by the high speed rotation of the substrate 10. At the same time, the light transmissive layer 18 is formed by irradiating with ultraviolet ray and photosetting. The center hole 10h of the substrate is formed by punching the center part of the plugging plate 21.

公开(公告)号：JPH08306086A

公开(公告)日：1996-11-22

申请号：JP12925995

申请日：1995-04-28

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  MASUHARA SHIN ,  NAKAO ISAMU

IPC: G11B11/10 ,  B82B1/00 ,  G11B7/26 ,  G11B11/105

Abstract: PURPOSE: To produce an information recording medium (e.g. an optical disk) ensuring a satisfactory transferred state of a recording face even in the case of a narrowed track pitch, well adaptable to high density recording and facilitating reproduction. CONSTITUTION: The molding face of a stamper 12 as a molding tool is transferred to a resin as a molding material to form the recording face 3 of an information recording medium, e.g. an optical disk 1. At this time, the molding tool is kept at a temp. between (Tg--25 deg.C) and Tg (Tg is the glass transition temp. of the molding material).