JPS63269301A - Transfer method - Google Patents
- ️Mon Nov 07 1988
JPS63269301A - Transfer method - Google Patents
Transfer methodInfo
-
Publication number
- JPS63269301A JPS63269301A JP10200287A JP10200287A JPS63269301A JP S63269301 A JPS63269301 A JP S63269301A JP 10200287 A JP10200287 A JP 10200287A JP 10200287 A JP10200287 A JP 10200287A JP S63269301 A JPS63269301 A JP S63269301A Authority
- JP
- Japan Prior art keywords
- substrate
- stamper
- ultraviolet
- ultraviolet curing
- curing resin Prior art date
- 1987-04-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 239000011347 resin Substances 0.000 claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 abstract description 5
- 238000007654 immersion Methods 0.000 abstract 1
- 230000009545 invasion Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE:To prevent the immersion of bubble to ultraviolet curing resin from occurring and to realize the mass production of a disk, by curving a substrate, and pressurizing the substrate contact with a roll so as to be pressed on a stamper keeping a curved state. CONSTITUTION:Since the end part of the substrate 2 on a downstream side is pressed downward by descending the arm 10 of a pressing mechanism 9, the end part on the downstream side is separated from the stamper 1, and the substrate 2 is curved in a circular arc shape by elasticity. Next, a pressurizing roller 12 is moved horizontally in the direction of the downstream, and is connected rotatably so as to press the lower plane of the substrate 2 on the stamper 1. Also, since the pressing mechanism 9 is ascended gradually as pressing the substrate 2 downward following the movement of the pressuring roller 12, the substrate 2 is pressed on the lower plane of the stamper 1 keeping the curved state. And the ultraviolet curing resin on an upper plane bites at the stamper 1, and next, an ultraviolet ray illuminator 14 advances underneath the substrate 2. In such a way, the invasion of the air in the ultraviolet curing resin can be prevented from occurring, and signal noise due to the bubble is eliminated, then, continuous transfer can be performed and a method suitable for the mass production can be realized.
Description
【発明の詳細な説明】
〔産業上の利用分臂〕
本発明はコンパクトディスク(CD)、ビデオディスク
などのように情報が凹凸状信号として記憶されているデ
ィスクの製造のため、信号を基板に成形させる転写方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention is for manufacturing discs such as compact discs (CDs) and video discs in which information is stored as uneven signals. This invention relates to a transfer method for molding.
上記のようなディスクの製造では、記憶情報としての信
号をディスクの素材となる基板に転写する必要があるが
、その信号の高密度性に対応するため紫外線硬化樹脂に
信号を転写することが行われている。かかる紫外線硬化
IiMガaを使用した従来の転写方法は、透光性の基板
に紫外線硬化樹脂を塗布し、この紫外線硬化樹脂に金型
となるスタンパを圧着し、圧着状態で紫外線硬化樹脂に
紫外線を照射して硬化し、樹脂の硬化後に基板をスタン
パから剥離することが行われている。In manufacturing the above-mentioned disks, it is necessary to transfer signals as stored information to the substrate that is the material of the disk, but in order to cope with the high density of the signals, it is possible to transfer the signals to ultraviolet curing resin. It is being said. In the conventional transfer method using such UV-curable IiM Ga, a UV-curable resin is applied to a transparent substrate, a stamper serving as a mold is crimped onto the UV-curable resin, and the UV-curable resin is exposed to UV rays while being crimped. The method is to irradiate the resin to cure it, and after the resin is cured, the substrate is peeled off from the stamper.
しかしながら、従来方法ではスタンパの圧着時に紫外線
硬化樹脂に空気が入り込み、この気泡が転写される信号
以外の凹凸としてディスク面に残って読取りヘッドに読
取られるため、再生時の雑音を生じる。又、1回の転写
では−のディスクを形yλするように行われるため大量
生産ができない問題点を有している。However, in the conventional method, air enters the ultraviolet curable resin when the stamper is pressed, and these air bubbles remain on the disk surface as irregularities other than the transferred signals and are read by the reading head, resulting in noise during playback. In addition, since one transfer is performed in such a way that a - disk is shaped like yλ, there is a problem that mass production is not possible.
本発明は上記事情を考慮してなされ、紫外線硬化樹脂へ
の気泡の侵入を防止すると共にディスクの大量生産に適
した転写方法を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a transfer method that prevents air bubbles from entering an ultraviolet curable resin and is suitable for mass production of disks.
上記口約を達成するため本発明に係る転写方法は、紫外
線硬化樹脂が塗布された透光性の基板をスタンバ下方に
供給し、この供給方向の一端側が前記スタンパから離れ
るように基板を弯曲させ、弯曲状態を維持した状態で供
給方向他端側から一端側に向って基板を前記スタンパに
押し付けるようにロール圧着した後、前記基板に紫外線
を照射して紫外線硬化樹脂を硬化させることを特徴とす
る。In order to achieve the above-mentioned requirements, the transfer method according to the present invention supplies a transparent substrate coated with an ultraviolet curable resin below the stamper, and curves the substrate so that one end side in the supply direction is away from the stamper. , the substrate is roll-pressed against the stamper from the other end toward the one end in the supply direction while maintaining the curved state, and then the substrate is irradiated with ultraviolet rays to cure the ultraviolet curing resin. do.
弯曲した基板を他端側から一端側に向って押圧すると、
紫外線硬化樹脂とスタンパとの間の空気を押し出すよう
に基板は徐々にスタンパに圧着し、紫外線硬化樹脂内へ
の空気の侵入がなくなる。又、同時に、前記圧着ロール
を逆方向に動作させることにより、スタンパからの離型
が容易に行え、スタンパに無理な応力をかけないため、
歪を生じさせず、スタンパの寿命を長くできる。When a curved board is pressed from the other end toward one end,
The substrate is gradually pressed against the stamper so as to push out the air between the ultraviolet curable resin and the stamper, thereby eliminating air intrusion into the ultraviolet curable resin. Moreover, at the same time, by moving the pressure roll in the opposite direction, the mold can be easily released from the stamper and no undue stress is applied to the stamper.
It does not cause distortion and can extend the life of the stamper.
以下、本発明を図示する実施例を参照して、具体的に説
明する。Hereinafter, the present invention will be specifically described with reference to illustrative embodiments.
図面は本発明の転写工程を示す側面図である。The drawing is a side view showing the transfer process of the present invention.
これら図面において、laはベースとなるホルダであり
、下面には記憶情報信号と逆の凹凸の信号からなるスタ
ンパ1が取り付けられている。この場合、本発明は後述
するように大量転写が可能なところから、スタンパ1は
ホルダ1aの長手方向に少なくとも2以上、列設されて
いる。2ばディスクの素材となる基板であり、大量転写
を可能とするため長尺な板体となっている。基板2は少
なくとも紫外線が透過可能な透光性プラスチックからな
ると共に、復元可能な弾性を有する厚さに成形されてい
る。この基板2はスタンバ1下方に供給されるが、供給
に先立って上面には紫外線硬化樹脂3が塗布される。4
はかかる塗布を行う塗布機構であり、液状の紫外線硬化
樹脂2が充填されたトレイ5と、トレイ5内の紫外線硬
化11183に下部が浸漬された給液ローラ6と、給液
ローラ6と直接又は間接的に接しながら基板2上を転接
する塗布ローラ7とからなっている。塗布ローラ7の外
面は一部が凹まれた凹溝7aが形成されている。この凹
溝78は第3図のように、基板2上に紫外線硬化樹脂の
塗布面2aと未塗布面2bとを交互に連続的に形成する
ために設けられるものであり、塗布ローラ7の外面に少
なくとも1条が形成される。8は基板2を上流側(図示
の例では右端側)から下流側(図示の例では左端側)に
供給するフィードローラである。又、基板2の供給方向
下流側にはスタンパ1に対して上下動する抑圧機構9が
設けられている。抑圧機構9はシリンダ。In these drawings, la is a holder serving as a base, and a stamper 1 having a concave and convex signal having a concavity and convexity opposite to that of the stored information signal is attached to the bottom surface. In this case, at least two stampers 1 are arranged in a row in the longitudinal direction of the holder 1a because the present invention enables large-scale transfer as described later. 2 is the substrate that is the raw material for the disk, and is a long plate to enable large-scale transfer. The substrate 2 is made of translucent plastic through which at least ultraviolet rays can pass, and is molded to have a thickness that allows it to recover its elasticity. This substrate 2 is supplied below the standber 1, but prior to supply, an ultraviolet curing resin 3 is applied to the upper surface. 4
is a coating mechanism that performs such coating, and includes a tray 5 filled with liquid ultraviolet curing resin 2, a liquid supply roller 6 whose lower part is immersed in ultraviolet curing 11183 in the tray 5, and a liquid supply roller 6 directly or It consists of a coating roller 7 that rolls over the substrate 2 while making indirect contact with it. The outer surface of the application roller 7 is formed with a partially recessed groove 7a. As shown in FIG. 3, this groove 78 is provided to alternately and continuously form a coated surface 2a and an uncoated surface 2b of the ultraviolet curable resin on the substrate 2. At least one line is formed in the area. A feed roller 8 supplies the substrate 2 from the upstream side (the right end side in the illustrated example) to the downstream side (the left end side in the illustrated example). Further, a suppression mechanism 9 that moves up and down with respect to the stamper 1 is provided on the downstream side of the substrate 2 in the supply direction. The suppression mechanism 9 is a cylinder.
モータなどの上下動源(図示せず)に接続されたアーム
10と、アーム10下端部に取り付けられた抑圧ローラ
11とからなっている。さらに、スタンパ1下方にはス
タンパ1の長手方向、すなわち基板2の長手方向に移動
する圧着ローラ12が設けられている。この圧着ローラ
12は上下移動可能にも支持されており、その上動によ
って基板2をスタンパエに押し付けるように作用する。It consists of an arm 10 connected to a vertical motion source (not shown) such as a motor, and a suppression roller 11 attached to the lower end of the arm 10. Furthermore, a pressure roller 12 that moves in the longitudinal direction of the stamper 1, that is, in the longitudinal direction of the substrate 2, is provided below the stamper 1. The pressure roller 12 is also supported so as to be movable up and down, and its upward movement acts to press the substrate 2 against the stamper pane.
なお、圧着ローラ12の摺動は基板2の供給方向上流側
から下流側に向って行われる。13は基板2をチャッキ
ングするクランパであり、スタンパ1の上流側に設けら
れている。又、第6図中、14は紫外線照射装置であり
、スタンパ1の下方にスライド移動可能に設けられてい
る。紫外線照射装置14は上方が開放された反射箱15
内に、紫外線ランプ16が取り付けられており、台車、
レールなどの移動手段によってスタンパ1下方に進出あ
るいは退出するように制御されている。Note that the pressure roller 12 slides from the upstream side to the downstream side in the supply direction of the substrate 2. 13 is a clamper for chucking the substrate 2, and is provided upstream of the stamper 1. Further, in FIG. 6, reference numeral 14 denotes an ultraviolet irradiation device, which is slidably provided below the stamper 1. The ultraviolet irradiation device 14 is a reflection box 15 whose top is open.
An ultraviolet lamp 16 is installed inside, and the trolley,
The stamper 1 is controlled to advance or retreat downward by a moving means such as a rail.
次に以上の装置を使用した本発明を説明する。Next, the present invention using the above device will be explained.
スタンパ1は所定位置に固定されており、このスタンパ
1に対して基板2が供給される(第1図)。A stamper 1 is fixed at a predetermined position, and a substrate 2 is supplied to the stamper 1 (FIG. 1).
基板2はスタンパ1の右端側から左端側に供給されるが
、この供給に際し上面には前記塗布機構4により紫外線
硬化側ll193が塗布される。紫外線硬化側nN 3
が塗布された基板2はフィードローラ8によってスタン
パ1下方に供給され、その先端がホルダ1aの終端部(
図示の例では左端部)に達すると、フィードローラ8が
停止し、同時にクランパエ3によってチャッキングされ
て供給が停止する。これにより転写のための準備が終了
するが、この状態で(よ圧着ローラ12はフィードロー
ラ8側、すなわち基板2の供給方向上流側に位置してお
り、その停止位置から上昇して基板2の上流側端部をス
タンバ1下面に押し付ける(第2図)。The substrate 2 is fed from the right end side to the left end side of the stamper 1, and during this feeding, an ultraviolet curing layer 1193 is applied to the upper surface by the coating mechanism 4. UV curing side nN 3
The substrate 2 coated with
When the feed roller 8 reaches the left end (in the illustrated example), the feed roller 8 stops and is simultaneously chucked by the clamper 3 to stop the supply. This completes the preparation for transfer, but in this state (the pressure roller 12 is located on the feed roller 8 side, that is, on the upstream side in the feeding direction of the substrate 2, and rises from its stop position to transfer the substrate 2). Press the upstream end against the lower surface of the stand bar 1 (Fig. 2).
この押し付けの後、前記押圧機構9のアーム10が下降
し、基板2の下流側端部を下方に押圧する(第4図)。After this pressing, the arm 10 of the pressing mechanism 9 descends and presses the downstream end of the substrate 2 downward (FIG. 4).
これにより基板2の下流側端部はスタンパ1から離れ、
基板2はその弾性によってスタンバ1下方で円弧状に弯
曲する。次に圧着ローラ】2が下m側に向って水平方向
に移動し、基板2下面をスタンパ1に押し付けるように
転接する(第5図)。かかる圧着ローラ12の移動によ
り基板2は上流側から下流側に向って徐々にスタンパ1
に押し付けられて、上面の紫外線硬化樹脂3がスタンパ
1に押圧され、IfM脂3に凹凸信号が形成される。こ
の場合、基板2はその長手方向に沿って順にスタンパ1
に押し付けられるから、基板2とスタンパ1との間に介
在する空気は順に、外部に排出されて樹脂3内に侵入す
ることがない。As a result, the downstream end of the substrate 2 is separated from the stamper 1, and
The substrate 2 curves in an arc shape below the stand bar 1 due to its elasticity. Next, the pressure roller 2 moves horizontally toward the lower m side, and rolls into contact with the lower surface of the substrate 2 so as to press it against the stamper 1 (FIG. 5). Due to the movement of the pressure roller 12, the substrate 2 is gradually pressed against the stamper 1 from the upstream side to the downstream side.
The ultraviolet curing resin 3 on the upper surface is pressed against the stamper 1, and an uneven signal is formed on the IfM resin 3. In this case, the stamper 1 is placed on the substrate 2 in order along its longitudinal direction.
Since the substrate 2 and the stamper 1 are pressed against each other, the air present between the substrate 2 and the stamper 1 is exhausted to the outside and does not enter the resin 3.
従って、樹脂3に気泡が生じないから樹脂3には正確な
凹凸信号が形成され、再生時の雑音がなくなる。なお、
圧着ローラ12の移動に追随して押圧機HIt9ば基板
2を下方に押圧しながら徐々に上昇する。従って、基板
2は弯曲状態を維持された状態でスタンパ1下面に押し
付けられる。圧着ローラ12が基板2の供給方向下流端
に達すると、基板2全体がスタンパ1に押し付けられ、
これにより上面の紫外線硬化樹脂3がスタンパ1に喰い
込む。この状態は圧着ローラ12が基板2の供給先A1
部に停止することによって維持されており、次に、紫外
線照射装置14が基板2下方に進出する(第6図)。圧
着ローラ12と紫外線照射装置14は一体的に動作して
もよい。紫外線ランプ16からの紫外線は透光性の基板
を透過して紫外線硬化tM脂3に達して吸収される。こ
れによりスタンパに喰い込んだ状態で樹脂3が硬化する
から凹凸信号が硬化成型される。この樹脂3の硬化の後
、基板2をスタンパ1から剥離するが、かかる剥離は基
板2を下方に押圧すると同時にローラを逆方向に進めろ
ことでスムースに行うことができる。Therefore, since no air bubbles are generated in the resin 3, an accurate concavo-convex signal is formed in the resin 3, and noise during reproduction is eliminated. In addition,
Following the movement of the pressure roller 12, the presser HIt9 gradually ascends while pressing the substrate 2 downward. Therefore, the substrate 2 is pressed against the lower surface of the stamper 1 while being maintained in a curved state. When the pressure roller 12 reaches the downstream end of the substrate 2 in the feeding direction, the entire substrate 2 is pressed against the stamper 1,
As a result, the ultraviolet curing resin 3 on the upper surface bites into the stamper 1. In this state, the pressure roller 12 is at the supply destination A1 of the substrate 2.
Then, the ultraviolet irradiation device 14 advances below the substrate 2 (FIG. 6). The pressure roller 12 and the ultraviolet irradiation device 14 may operate integrally. The ultraviolet light from the ultraviolet lamp 16 passes through the transparent substrate, reaches the ultraviolet curing tM resin 3, and is absorbed. As a result, the resin 3 is hardened while being bitten into the stamper, so that the concavo-convex signal is hardened and molded. After the resin 3 has hardened, the substrate 2 is peeled off from the stamper 1, and this peeling can be done smoothly by pushing the substrate 2 downward and moving the roller in the opposite direction at the same time.
このような方法によれば、基板2を連続的にスタンパ1
下方に供給して転写が行われるから連続的な転写が可能
となり、ディスクの大量生産に適したものとなると共に
、転写時に気泡が紫外線硬化例IRt等に侵入しないか
ら、正確な凹凸信号の転写が可能となる。According to such a method, the substrate 2 is continuously stamped with the stamper 1.
Since the transfer is performed by supplying the material downward, continuous transfer is possible, making it suitable for mass production of disks, and since air bubbles do not enter the ultraviolet cured IRt etc. during transfer, accurate unevenness signal transfer is possible. becomes possible.
なお、本発明は上記実施例に限定されろことなく、種々
変形が可能である。例えば、供給方向上流側の基板を押
圧して基板を弯曲させ、圧着ローラを基板の供給方向下
流側から上流側に向って移動させてもよい。Note that the present invention is not limited to the above-mentioned embodiments, and can be modified in various ways. For example, the substrate on the upstream side in the supply direction may be pressed to curve the substrate, and the pressure roller may be moved from the downstream side to the upstream side in the supply direction of the substrate.
以上の通り本発明は、弯曲状態を維持した状態で基板を
スタンパに押し付けるようにしたから、紫外線硬化樹脂
への空気の侵入がな(なり、その気泡による信号雑音が
なくなると共に、連続的な転写が可能となり、大量生産
に適したものとすることができる、効果がある。As described above, in the present invention, since the substrate is pressed against the stamper while maintaining the curved state, air does not enter the ultraviolet curable resin, eliminating signal noise caused by air bubbles, and ensuring continuous transfer. This has the effect of making it possible to make it suitable for mass production.
第1図は本発明に使用される装置の側面図、第2図およ
び第4図ないし第6図は本発明工程の側面図、第3図は
基板の平面図である。
1・・スタンパ、2・・基板、
3・・紫外線硬化樹脂、9・・押圧機構、12 圧着ロ
ーラ、14・・紫外線照射装置。
特許出願人 鐘淵化学工業株式会社
代理人 弁理士 佐 藤 英 昭
年41コ
$414FIG. 1 is a side view of the apparatus used in the present invention, FIGS. 2 and 4 to 6 are side views of the steps of the present invention, and FIG. 3 is a plan view of the substrate. 1. Stamper, 2. Substrate, 3. Ultraviolet curing resin, 9. Pressing mechanism, 12 Pressure roller, 14. Ultraviolet irradiation device. Patent applicant Kanebuchi Chemical Industry Co., Ltd. Agent Patent attorney Hide Sato 1920 41 koen $ 414
Claims (1)
【特許請求の範囲】[Claims]
紫外線硬化樹脂が塗布された透光性の基板をスタンパ
下方に供給し、この供給方向の一端側が前記スタンパか
ら離れるように基板を弯曲させ、弯曲状態を維持した状
態で供給方向他端側から一端側に向って基板を前記スタ
ンパに押し付けるようにロール圧着した後、前記基板に
紫外線を照射して紫外線硬化樹脂を硬化させることを特
徴とする転写方法。A translucent substrate coated with an ultraviolet curable resin is supplied below the stamper, and the substrate is curved so that one end in the supply direction is away from the stamper, and while maintaining the curved state, one end is bent from the other end in the supply direction. A transfer method characterized in that after roll-pressing the substrate so as to press it against the stamper sideways, the substrate is irradiated with ultraviolet rays to cure the ultraviolet curable resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10200287A JPS63269301A (en) | 1987-04-27 | 1987-04-27 | Transfer method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10200287A JPS63269301A (en) | 1987-04-27 | 1987-04-27 | Transfer method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63269301A true JPS63269301A (en) | 1988-11-07 |
Family
ID=14315589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10200287A Pending JPS63269301A (en) | 1987-04-27 | 1987-04-27 | Transfer method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63269301A (en) |
Cited By (1)
* Cited by examiner, † Cited by third partyPublication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999054116A1 (en) * | 1998-04-23 | 1999-10-28 | Minnesota Mining And Manufacturing Company | Method and apparatus for assembling an optical recording medium |
-
1987
- 1987-04-27 JP JP10200287A patent/JPS63269301A/en active Pending
Cited By (2)
* Cited by examiner, † Cited by third partyPublication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999054116A1 (en) * | 1998-04-23 | 1999-10-28 | Minnesota Mining And Manufacturing Company | Method and apparatus for assembling an optical recording medium |
US6066218A (en) * | 1998-04-23 | 2000-05-23 | 3M Innovative Properties Company | Method and apparatus for assembling an optical recording medium |
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