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公开(公告)号：JP2007287329A
公开(公告)日：2007-11-01
申请号：JP2007204633
申请日：2007-08-06
Inventor： KASHIWAGI TOSHIYUKI , ARAKAWA NORIYUKI , YAMAZAKI TAKESHI , YUKIMOTO TOMOMI , FURUKI MOTOHIRO
Abstract: PROBLEM TO BE SOLVED: To easily manufacture an optical disk of a large capacity wherein recording and/or reproduction of information is performed by irradiating information signal parts with a laser beam from a side of a light transmission layer having a thin and uniform thickness. SOLUTION: A substrate formed with the information signal parts is prepared and after adhesive layers are formed on the information signal parts of this substrate by applying an adhesive or tacky adhesive thereon at an approximately uniform film thickness, a transparent plastic film is press-bonded onto the adhesive layers while the film is kept tense. The transparent plastic film previously formed with the adhesive layers by applying the adhesive or tacky adhesive at an approximately uniform film thickness may be press-bonded to the information signal parts of the substrate thereon while the transparent plastic film is kept tense. The base previously formed with the adhesive layers by applying the adhesive or tacky adhesive at the approximately uniform film thickness may be press-bonded to the information signal parts of the substrate thereon while the base is kept tense and thereafter the base is peeled and removed from the adhesive layers and the remaining adhesive layers are used as light transparent layers. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：为了容易地制造大容量的光盘，其中通过用具有薄且均匀的光透射层的侧面的激光束照射信息信号部分来进行信息的记录和/或再现 厚度。 解决方案：制备形成有信息信号部件的基板，并且通过在其上以大致均匀的膜厚施加粘合剂或粘性粘合剂而在该基板的信息信号部分上形成粘合剂层之后，压制透明塑料膜 粘合到粘合剂层上，同时膜保持紧张。 通过以大致均匀的膜厚施加粘合剂或粘性粘合剂，预先形成有粘合剂层的透明塑料膜可以在透明塑料膜保持紧张的状态下被压接到基板的信息信号部分上。 通过以大致均匀的膜厚度施加粘合剂或粘性粘合剂，预先形成有粘合剂层的基底可以在基体保持紧密的同时将其压合到基底的信息信号部分上，然后剥离基底 粘合剂层和其余粘合剂层用作透光层。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2001250267A
公开(公告)日：2001-09-14
申请号：JP2000063382
申请日：2000-03-03
Applicant: SONY CORP , TEIJIN CHEMICALS LTD
Inventor： ARAKAWA NORIYUKI , ISHIHATA KOJI
Abstract: PROBLEM TO BE SOLVED: To ensure the transferability of a micro-signal and resonance characteristics and rigidity as characteristics contradictory to the transferability. SOLUTION: At least a recording layer and a light transmissive layer are successively formed on a substrate to obtain the objective optical recording medium which is irradiated with light from the light transmissive layer side to carry out the recording or reproduction of an information signal. The substrate has a core layer comprising a resin composition prepared by mixing two or more resins. The tan δ of the resin composition as an index showing internal loss is >=0.015 on the whole. The resin composition is an incompatible resin composite having a sea-island structure.
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公开(公告)号：JP2001167480A
公开(公告)日：2001-06-22
申请号：JP34939299
申请日：1999-12-08
Applicant: SONY CORP
Inventor： KASHIWAGI TOSHIYUKI , ARAKAWA NORIYUKI
IPC: G11B7/26
Abstract: PROBLEM TO BE SOLVED: To form a substrate having an irregular pattern finer than that formed in a master stamper manufacturing stage. SOLUTION: The method for manufacturing an optical recording medium includes a first stage S1 for manufacturing a master stamper having a first irregular pattern formed on at least one principal plane of the master stamper, a second stage S2 for manufacturing a transferred body having a first transferred irregular pattern formed by transferring the first irregular pattern of the master stamper by using a hardening-shrinkable resin material, a third stage S3 for manufacturing a duplicate stamper having a second irregular pattern formed by transferring the first transferred irregular pattern of the transferred body and a fourth stage S4 for manufacturing the substrate having a second transferred irregular pattern formed by transferring the second irregular pattern of the duplicate stamper.
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公开(公告)号：JP2000298879A
公开(公告)日：2000-10-24
申请号：JP10596799
申请日：1999-04-13
Applicant: SONY CORP
Inventor： KASHIWAGI TOSHIYUKI , ARAKAWA NORIYUKI , YAMAZAKI TAKESHI , YUKIMOTO TOMOMI
Abstract: PROBLEM TO BE SOLVED: To accurately laminate a substrate and an optical transmission member and at the same time uniformly maintain the gap between them. SOLUTION: An optical disk 1 is provided with a signal-recording region 8 where a recording layer 4 is formed on a main surface, a non-signal recording region 9 where no recording layer 4 is formed at the inner-periphery side of the signal-recording region 8, and a chucking region 10 with a central hole 2 as a center at further inner-periphery side. On a substrate 3, a first level difference part 11 where the non-signal recording region 9 is allowed to project from the signal-recording region 9, and a second level difference part 12 where the chucking region 10 is allowed to project from the non-signal recording region 9, are formed. As a result, the substrate 3 is formed so that the non- signal recording region 9 is thicker than the signal-recording region 8, and the chucking region 10 is thicker than the non-signal recording region 9. A sheet 6 that becomes a light-transmission layer 7 is laminated onto the first level difference part 11 via an adhesive layer 5, namely onto a surface where the non-signal recording region 9 is formed. The adhesive layer 5 is formed between the signal-recording region 8 of the substrate 3 and a sheet 6.
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公开(公告)号：JPH11242829A
公开(公告)日：1999-09-07
申请号：JP12233398
申请日：1998-05-01
Applicant: SONY CORP
Inventor： ARAKAWA NORIYUKI , AKIYAMA YUJI , KASHIWAGI TOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a photorecord medium which has sufficient strength, no deformation such as curvature, and superior durability and is sufficiently adaptive to high-density recording and its manufacture. SOLUTION: An optical disk 1 has at least a recording layer 4 and a light transmission layer 5 formed on a substrate 2 in order and light is made incident from the side of the light transmission layer 5 to record and/or reproduce an information signal. The substrate 2 has a 1st resin layer 7 forming the surface of the side where the recording layer 4 is formed and a 2nd resin layer 6 which is stacked on the 1st resin layer 7 and formed of a resin material having a larger modulus of bending elasticity than the resin material forming the 1st resin layer 7.
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Patent Agency Ranking
公开(公告)号：JPH11126377A
公开(公告)日：1999-05-11
申请号：JP981998
申请日：1998-01-21
Applicant: SONY CORP
Inventor： KASHIWAGI TOSHIYUKI , ARAKAWA NORIYUKI , YAMAZAKI TAKESHI , YUKIMOTO TOMOMI , FURUKI MOTOHIRO
IPC: G11B7/26
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing an optical disk capable of form a light transparent layer of a small thickness and uniform thickness and easily producing the optical disk of a large capacity. SOLUTION: A substrate 101 formed with information signal parts is prepd. and after adhesive layers are formed on the information signal parts of this substrate 101 by applying an adhesive or tacky adhesive thereon at an approximately uniform film thickness, a transparent plastic film 112 is press-fixed in superposition onto these adhesive layers while this film is held tense. The transparent plastic film 112 previously formed with the adhesive layers by applying the adhesive or tacky adhesive at an approximately uniform film thickness is otherwise press-fixed to the information signal parts of the substrate 101 in superposition thereon while the transparent plastic film is held tense. The base previously formed with the adhesive layers by applying the adhesive or tacky adhesive at the approximately uniform film thickness is otherwise press-fixed to the information signal parts of the substrate in superposition thereon while the base is held tense and thereafter the base is peeled and removed from the adhesive layers and the remaining adhesive layers are formed as light transparent layers. The optical disk which is provided with the light transparent layers consisting of the transparent plastic film 112 on the substrate 101 formed with the information signal parts and with which the recording and/or reproducing of the information is executed by irradiating the information signal parts with a laser beam from this light transparent layer side is thus produced.
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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
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.
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公开(公告)号：JPH10283680A
公开(公告)日：1998-10-23
申请号：JP8400897
申请日：1997-04-02
Applicant: SONY CORP
Inventor： ARAKAWA NORIYUKI
Abstract: PROBLEM TO BE SOLVED: To avoid the deformation of a substrate and the occurrence of resin sink during an injection molding by employing the two step injection in which the translucent resin, that is equivalent to the amount of cooling contraction, is further injected after optically transmissive resin is injected and kept under a pressure. SOLUTION: In a first injection process, a screw 40s is rotated and moved to send melted and optically transmissive resin into a cavity 20 of a metallic mold 23 and the screw 40s is stopped at a beforehand set position. After applying a pressure, the screw 40s is again rotated and moved within 0.5 to 1.5 seconds so that the resin is not hardened and residual resin is injected into the cavity 20 so as to avoid the occurrence of the sink of the middle thickness section of the substrate caused by the cooling and the contraction. After cooling the resin, which is completely hardened in the cavity 20, the substrate is removed from the device 23. Note that the adjustment of the amount of the injection of the melted optically transmissive resin in the first injection process is also accomplished by detecting the pressure in a cylinder 30 and controlling the position of the screw 40s.
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公开(公告)号：JPH10269621A
公开(公告)日：1998-10-09
申请号：JP7235397
申请日：1997-03-25
Applicant: SONY CORP
Inventor： ARAKAWA NORIYUKI , YAMAMOTO MASANOBU
IPC: G11B7/24 , G11B11/10 , G11B11/105 , G11B23/00
Abstract: PROBLEM TO BE SOLVED: To provide the optical disk in which the rigidity is maintained even though a use is made of a single plate, that is made thinner, a magneto-optical recording is also conducted and a conventional rotating means is also facilitated. SOLUTION: A holding section 21, in which one main surface 21a is mounted on a rotating means and used as a mounting surface, is formed in an inner peripheral side and an information recording section 22, in which one main surface 22a is set as an information recording surface, is formed in an outer peripheral side. The mounting surface and the information recording surface are not formed in a single surface. The section 21 is made thicker than the section 22. It is fine to form a groove section 25 between sections 21 and 22. It is also fine to form a projecting section 27 in the outer peripheral side of a main surface 22b. Moreover, more than one kind of functional films are formed on the surface 22b which is located on the opposite side of the information recording surface.
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10.发明专利
公开(公告)号：JPH09293279A
公开(公告)日：1997-11-11
申请号：JP10772996
申请日：1996-04-26
Applicant: SONY CORP
Inventor： ARAKAWA NORIYUKI , KASHIWAGI TOSHIYUKI , KUROUSU ASAO , AKIYAMA YUJI
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of projections on a substrate by blanking a stamper in such a manner that a flash is formed at the peripheral edge on the recording information side surface of the central hole of this stamper at the time of forming the central hole by blanking in the central part of the stamper. SOLUTION: The flash 60 is formed at the peripheral edge on the surface formed with the fine ruggedness 8s for transfer of the central hole 8h of the stamper 8 for injection molding, if the hole 8h is formed by blanking from the surface on the side opposite to the surface formed with the ruggedness 8s. The flash 60 of the stamper 8 intrudes into a light transparent resin when the first and second substrates are manufactured by injection molding using the stamper 8. If the first substrate is manufactured in such a manner, a recessed part 91 is formed at the substrate 1. The spacing between the substrates 1 and 2 is made uniform and the occurrence of deflection in the substrates is effectively prevented in the case the optical recording medium of a lamination type is formed by interposing a photosetting resin between the substrate 1 formed with the recessed part 91 and the substrate 2.
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