JPH1158467A - Disc molding die - Google Patents
Disc molding dieInfo
- Publication number
- JPH1158467A JPH1158467A JP24177997A JP24177997A JPH1158467A JP H1158467 A JPH1158467 A JP H1158467A JP 24177997 A JP24177997 A JP 24177997A JP 24177997 A JP24177997 A JP 24177997A JP H1158467 A JPH1158467 A JP H1158467A
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- gap
- cavity
- outer periphery
- mold
- Prior art date
- 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.)
- Granted
Links
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＣＤやＤＶＤのよ
うなディスク基板を成形するための金型であって、さら
に詳しくは、ディスクを金型から離型させるための新規
な構成に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for molding a disk substrate such as a CD or DVD, and more particularly to a novel structure for releasing a disk from the mold. is there.
【０００２】[0002]
【従来の技術】図３は従来のディスク金型の要部を示す
断面図であり、実開平４−６０４１４に開示している。
金型は固定金型３０と可動金型３１からなり、固定金型
３０は、鏡面板１と、鏡面板１の中心開口に嵌挿したメ
スカッタ１１と、メスカッタ１１の中心開口に嵌挿した
スプルブッシュ１０等からなり、鏡面板１とメスカッタ
１１との嵌合面に設けた間隙からキャビティ３へ内周離
型エアを吹き出すための圧空通路２０が設けてある。可
動金型３１は、鏡面板２と、鏡面板２の外周に外嵌した
スタンパ外周ホルダ４と、鏡面板２の中心開口に順次嵌
挿したスタンパ内周ホルダ９、スペーサ８、エジェクタ
スリーブ７およびオスカッタ６等よりなり、鏡面板２の
表面にはスタンパ内周ホルダ９とスタンパ外周ホルダ４
により保持されたスタンパ５が配置してある。固定金型
３０と可動金型３１が衝合してキャビティ３が形成され
るのである。そして、圧空通路２３から前記スペーサ８
とスタンパ内周ホルダ９との間に設けた溝を通ってキャ
ビティ３へ内周離型エアを吹き出すようになっている。
また、前記スタンパ外周ホルダ４と鏡面板２によって形
成される環状空所１２へは圧空通路２１が連通してお
り、スタンパ外周ホルダ４の内周端であるスタンパ５の
保持部に設けた間隙から外周離型エアを吹き出す。２２
は真空通路であり、環状溝１５に連通することにより、
鏡面板２に配置したスタンパ５の裏面を吸引保持する。2. Description of the Related Art FIG. 3 is a sectional view showing a main part of a conventional disk mold, which is disclosed in Japanese Utility Model Laid-Open No. 4-60414.
The mold is composed of a fixed mold 30 and a movable mold 31. The fixed mold 30 includes a mirror plate 1, a mess cutter 11 inserted into the center opening of the mirror plate 1, and a sprue inserted into the center opening of the mess cutter 11. A pressurized air passage 20 is formed of a bush 10 and the like, and blows out the inner circumferential release air to the cavity 3 from a gap provided in the fitting surface between the mirror plate 1 and the mess cutter 11. The movable mold 31 includes a mirror plate 2, a stamper outer circumferential holder 4 fitted on the outer periphery of the mirror plate 2, a stamper inner circumferential holder 9, a spacer 8, an ejector sleeve 7, which is sequentially fitted into a center opening of the mirror plate 2. Oscutter 6 and the like, and stamper inner circumference holder 9 and stamper outer circumference holder 4
Are disposed. The cavity 3 is formed by abutment of the fixed mold 30 and the movable mold 31. Then, the spacer 8
The inner peripheral mold release air is blown out to the cavity 3 through a groove provided between the cavity 3 and the stamper inner peripheral holder 9.
A pressurized air passage 21 communicates with an annular space 12 formed by the stamper outer peripheral holder 4 and the mirror surface plate 2, and through a gap provided in a holding portion of the stamper 5 which is an inner peripheral end of the stamper outer holder 4. Blow out the outer mold release air. 22
Is a vacuum passage, and by communicating with the annular groove 15,
The back surface of the stamper 5 placed on the mirror plate 2 is held by suction.
【０００３】このような従来金型におけるディスクの、
金型からのエア吹き出しによる離型方法を説明する。射
出充填と冷却が完了後、可動金型３１を固定金型３０か
ら離間させて型開する際、可動金型３１が離間する所定
時間前から圧空通路２０、２１および２３に同時に圧縮
空気を供給しておく。こうして、型開直後にディスクを
鏡面１３とスタンパ表面１４からほぼ同時に瞬時に離型
せしめ、ＣＤにおいては剥離むらを、ＤＶＤにおいては
変形（チルト不良）を防止する。このとき、もし離型が
瞬時に行われないとすると、ＣＤでは速く離型した部分
と遅く離型した部分の境界が線状にむらとなって現れ、
ＤＶＤでは遅く剥離する部分が引っ張られたようにな
り、変形するのである。[0003] The disc of such a conventional mold is
A method of releasing air by blowing air from a mold will be described. After the injection filling and cooling are completed, when the movable mold 31 is separated from the fixed mold 30 to open the mold, compressed air is simultaneously supplied to the compressed air passages 20, 21 and 23 a predetermined time before the movable mold 31 is separated. Keep it. In this way, immediately after the mold is opened, the disk is instantaneously released from the mirror surface 13 and the stamper surface 14 almost instantaneously, thereby preventing peeling unevenness in a CD and deformation (tilt failure) in a DVD. At this time, if the mold release is not performed instantaneously, the boundary between the fast-released part and the slow-released part appears on the CD as a linear unevenness.
In a DVD, the part that peels off late is pulled and deformed.
【０００４】[0004]
【発明が解決しようとする課題】上記のように、図３の
従来のディスク金型では、スタンパ表面１４の離型エア
は内周・外周共に備えているが、鏡面１３側の離型エア
は内周のみ備えているに過ぎない。そのため、ディスク
を鏡面１３とスタンパ表面１４から略同時に瞬時に離型
せしめるためには、圧空通路２０、２１および２３に供
給する圧縮空気の圧力や流量を相互に微妙に調節しなけ
ればならなかった。As described above, in the conventional disk mold shown in FIG. 3, the release air on the stamper surface 14 is provided on both the inner circumference and the outer circumference. It only has an inner circumference. Therefore, in order to instantaneously release the disk from the mirror surface 13 and the stamper surface 14 almost simultaneously, the pressure and flow rate of the compressed air supplied to the compressed air passages 20, 21 and 23 must be finely adjusted with respect to each other. .
【０００５】[0005]
【課題を解決するための手段】そこで、キャビティの外
周端部を形成するスタンパ外周ホルダの内周面に、射出
充填完了時はキャビティに連通せず僅か型開したとき連
通する環状空隙を設け、該環状空隙に圧空通路を連通
し、さらに、射出充填完了時、前記環状空隙のキャビテ
ィ側におけるスタンパ外周ホルダと鏡面板外周との間隙
が、前記環状空隙の反キャビティ側におけるスタンパ外
周ホルダと鏡面板外周との間隙よりも広くして、鏡面１
３側の離型エアをディスクの外周からも吹き出すように
したのである。In view of the above, there is provided an annular space on the inner peripheral surface of the stamper outer peripheral holder forming the outer peripheral end of the cavity, which does not communicate with the cavity when the injection filling is completed, but communicates when the mold is slightly opened, A pressurized air passage communicates with the annular gap, and when the injection filling is completed, the gap between the outer periphery of the stamper and the mirror plate on the cavity side of the annular gap is different from the outer periphery of the stamper on the cavity side opposite to the annular gap. Make the mirror surface 1 wider than the gap with the outer circumference.
The release air on the third side is also blown from the outer periphery of the disk.
【０００６】[0006]
【発明の実施の形態】図１および図２は本発明の実施の
形態を示すディスク金型の部分断面図であり、図３の従
来のディスク金型におけるＡに相当する部分の拡大図と
なっている。したがって本発明のディスク金型のＡ部以
外は図３と同一であり、図１および図２における図３と
同一符号は、同一または相当する部材を示すものであ
る。1 and 2 are partial sectional views of a disk mold showing an embodiment of the present invention, and are enlarged views of a portion corresponding to A in the conventional disk mold of FIG. ing. Therefore, components other than the portion A of the disk mold of the present invention are the same as those in FIG. 3, and the same reference numerals in FIGS. 1 and 2 as those in FIG. 3 indicate the same or corresponding members.
【０００７】図１の実施例において、スタンパ外周ホル
ダ４ａの内周面には段部１６を備え、鏡面板１ａの外周
には段部１７を備えている。鏡面板１ａの射出充填完了
時の位置は二点鎖線Ｆで示し、このときキャビティ３が
段部１６と段部１７により形成される環状空隙１８に連
通せず、微小間隙Ｂが存在するように段部１６および段
部１７の位置が決定されている。スタンパ外周ホルダ４
ａの大径内周面２５と鏡面板１ａの大径外周面２６との
間には微小間隙Ｃを有し、微小間隙Ｃは前記微小間隙Ｂ
より小とするのが好ましい。具体的には、微小間隙Ｂは
１０〜２５μｍ、微小間隙Ｃは５〜１０μｍであり、環
状空隙１８の高さ即ち段部の高さと微小間隙の和は１〜
３ｍｍとする。なお、スタンパ外周ホルダ４ａ内周のキ
ャビティ部分に設けた段部１９は、環状空所１２から吹
き出すスタンパ表面１４からディスクを剥離する離型エ
アがスタンパ外周ホルダ４ａの内周方向へ漏洩するのを
防ぎ、スタンパ表面１４側へ有効に吹き出すようにする
ためのものである。In the embodiment of FIG. 1, a step 16 is provided on the inner peripheral surface of the stamper outer holder 4a, and a step 17 is provided on the outer periphery of the mirror plate 1a. The position of the mirror surface plate 1a at the time of completion of the injection filling is indicated by a two-dot chain line F. At this time, the cavity 3 does not communicate with the annular space 18 formed by the step portions 16 and 17 so that the minute gap B exists. The positions of the steps 16 and 17 are determined. Stamper outer peripheral holder 4
a between the large-diameter inner peripheral surface 25 and the large-diameter outer surface 26 of the mirror surface plate 1a.
Preferably it is smaller. Specifically, the minute gap B is 10 to 25 μm, the minute gap C is 5 to 10 μm, and the height of the annular gap 18, that is, the sum of the height of the step portion and the minute gap, is 1 to
3 mm. The step 19 provided in the cavity part on the inner periphery of the stamper outer peripheral holder 4a prevents the release air separating the disk from the stamper surface 14 blown out from the annular cavity 12 from leaking in the inner peripheral direction of the stamper outer holder 4a. This is intended to prevent the air flow and blow out to the stamper surface 14 side effectively.
【０００８】環状空隙１８に連通する圧空通路２４は、
圧空通路２１に接続されているが、圧空通路２４を単独
に圧縮空気源に接続するようにしてもよい。そうするこ
とにより、鏡面１３からの離型エアの吹き出し時期、圧
力または流量が単独にかつ任意に設定可能となり、より
効果的な離型が容易に実現出来る。The compressed air passage 24 communicating with the annular space 18 is
Although connected to the compressed air passage 21, the compressed air passage 24 may be connected to the compressed air source alone. By doing so, the release timing, pressure or flow rate of the release air from the mirror surface 13 can be set independently and arbitrarily, and more effective release can be easily realized.
【０００９】図２は他の実施例であり、スタンパ外周ホ
ルダ４ｂと鏡面板１ｂには段部はなく、その代わりに環
状空隙１８ａをスタンパ外周ホルダ４ｂの内周面に設け
ており、環状空隙１８ａには圧空通路２４が連通してい
る。鏡面板１ｂの射出充填完了時の位置は二点鎖線Ｈで
示し、このときキャビティ３が環状空隙１８ａに連通せ
ず、微小間隙Ｄが存在するように環状空隙１８ａの位置
が決定されている。スタンパ外周ホルダ４ｂの内周面２
５ａの金型の軸芯に対する角度は、鏡面板１ｂの外周面
２６ａの金型の軸芯に対する角度より小さくなってい
る。即ち、微小間隙Ｄは微小間隙Ｅより大であり、具体
的には、微小間隙Ｄは１０〜２５μｍ、微小間隙Ｅは５
〜１０μｍである。FIG. 2 shows another embodiment, in which the stamper outer peripheral holder 4b and the mirror plate 1b have no step, but instead have an annular gap 18a provided on the inner peripheral surface of the stamper outer holder 4b. A compressed air passage 24 communicates with 18a. The position of the mirror plate 1b at the time of completion of injection filling is indicated by a two-dot chain line H. At this time, the position of the annular gap 18a is determined so that the cavity 3 does not communicate with the annular gap 18a and the minute gap D exists. Inner peripheral surface 2 of stamper outer holder 4b
The angle of the mold 5a with respect to the axis of the mold is smaller than the angle of the outer peripheral surface 26a of the mirror plate 1b with respect to the axis of the mold. That is, the minute gap D is larger than the minute gap E. Specifically, the minute gap D is 10 to 25 μm, and the minute gap E is 5 μm.
〜１０10 μm.
【００１０】本発明のディスク金型によるディスクの離
型方法について説明する。射出充填完了時、溶融樹脂に
よりキャビティ３は通常最大の容積となっており（Ｆ、
Ｈ）、その後キャビティ３は圧縮されて縮小する。環状
空隙は射出充填完了時でもキャビティ３に連通しないよ
うな構成となっているので、ディスクの端部は支障なく
成形される。その後所定の冷却時間を経て実際に型開が
行われる前に、圧空通路２１、２３および２４には所定
の圧力と流量に設定された圧縮空気が供給され、それら
の圧空通路と環状空所１２および環状空隙１８（１８
ａ）は予圧状態となっている。このとき、環状空隙の反
キャビティ側の微小間隙は噛り等を生じない最少寸法と
してあるので、圧縮空気の漏洩は問題とならない。A method for releasing a disk using the disk mold of the present invention will be described. When the injection filling is completed, the cavity 3 usually has the maximum volume due to the molten resin (F,
H) Then, the cavity 3 is compressed and reduced. Since the annular gap does not communicate with the cavity 3 even when the injection filling is completed, the end of the disk is formed without any trouble. Thereafter, before the mold is actually opened after a predetermined cooling time, compressed air set at a predetermined pressure and flow rate is supplied to the compressed air passages 21, 23 and 24, and the compressed air passages and the annular space 12 are supplied. And the annular space 18 (18
a) is in a preload state. At this time, since the minute gap on the side opposite to the cavity from the annular gap has a minimum dimension that does not cause biting or the like, leakage of compressed air does not matter.
【００１１】次に、僅か型開きした瞬間に、離型し易い
鏡面１３からディスクが剥離しはじめると環状空隙に予
圧されていた圧縮空気が微小間隙Ｂ（Ｄ）を通って離型
エアとなってディスク外周からディスクと鏡面１３の間
に瞬時に侵入すると共に、ディスク内周からも圧空通路
２０を通じて吹き込むことによりディスクの内外周同時
に瞬時に離型する。さらに型開きしてＧまたはＩの状態
となり、環状空隙がキャビティに連通すると、より強力
に離型エアがディスク表面に与えられ、ディスクの冷却
に伴う収縮のために、ディスクのスタンパ５側の離型を
も促進することになり、環状空所１２と圧空通路２３に
よるスタンパ表面１４への内外周面からの離型エアと相
まって、ディスク表裏両面とも略同時に瞬時に離型する
ことが出来る。Next, at the moment when the mold is slightly opened, when the disk begins to peel off from the mirror surface 13 which is easy to release, the compressed air pre-pressed in the annular gap passes through the minute gap B (D) to become release air. As a result, it instantaneously enters between the disk and the mirror surface 13 from the outer periphery of the disk, and is also blown from the inner periphery of the disk through the compressed air passage 20 to instantly release the inner and outer periphery of the disk at the same time. When the mold is further opened to be in a state of G or I, and the annular gap communicates with the cavity, mold release air is more strongly applied to the surface of the disc, and shrinkage accompanying cooling of the disc causes the separation of the disc on the stamper 5 side. The mold is also promoted, and together with the release air from the inner and outer peripheral surfaces to the stamper surface 14 by the annular cavity 12 and the compressed air passage 23, both the front and rear surfaces of the disk can be released almost instantaneously.
【００１２】以上述べた実施の形態は、スタンパ５を可
動金型に設けた場合について説明したが、スタンパ５を
固定金型に設けても構成を逆にすることで同様に実施可
能である。In the above-described embodiment, the case where the stamper 5 is provided on the movable mold has been described. However, the same configuration can be implemented by providing the stamper 5 on a fixed mold by reversing the configuration.
【００１３】[0013]
【発明の効果】本発明によればディスクの表裏および内
外周を略同時に瞬時にしかも容易に離型出来るので、Ｃ
Ｄにおけるしみ、むら等のディスク表面の不良を、また
ＤＶＤにおいては、変形によるチルト不良を防止するこ
とが出来る。According to the present invention, the front and back surfaces and the inner and outer peripheries of the disk can be instantaneously and easily released from the mold almost simultaneously.
D can prevent defects on the disk surface such as spots and unevenness, and DVD can prevent tilt defects due to deformation.
【図１】本発明のディスク金型を示す、スタンパ外周ホ
ルダ近傍の部分断面図である。FIG. 1 is a partial cross-sectional view showing the vicinity of a stamper outer peripheral holder, showing a disk mold according to the present invention.
【図２】本発明の他のディスク金型を示す、スタンパ外
周ホルダ近傍の部分断面図である。FIG. 2 is a partial cross-sectional view showing the vicinity of a stamper outer peripheral holder showing another disk mold according to the present invention.
【図３】従来のディスク金型の要部を示す断面図であ
る。FIG. 3 is a sectional view showing a main part of a conventional disk mold.
１、１ａ、２ ‥‥‥‥‥ 鏡面板 ３ ‥‥‥‥‥‥‥‥‥‥ キャビティ ４、４ａ、４ｂ ‥‥‥‥ スタンパ外周ホルダ ５ ‥‥‥‥‥‥‥‥‥‥ スタンパ ６ ‥‥‥‥‥‥‥‥‥‥ オスカッタ ７ ‥‥‥‥‥‥‥‥‥‥ エジェクタスリーブ ８ ‥‥‥‥‥‥‥‥‥‥ スペーサ ９ ‥‥‥‥‥‥‥‥‥‥ スタンパ内周ホルダ １０ ‥‥‥‥‥‥‥‥‥ スプルブッシュ １１ ‥‥‥‥‥‥‥‥‥ メスカッタ １２ ‥‥‥‥‥‥‥‥‥ 環状空所 １３ ‥‥‥‥‥‥‥‥‥ 鏡面 １４ ‥‥‥‥‥‥‥‥‥ スタンパ表面 １５ ‥‥‥‥‥‥‥‥‥ 環状溝 １６、１７、１９ ‥‥‥ 段部 １８、１８ａ ‥‥‥‥‥ 環状空隙 ２０、２１、２３、２４ ‥ 圧空通路 ２２ ‥‥‥‥‥‥‥‥‥ 真空通路 ２５ ‥‥‥‥‥‥‥‥‥ 大径内周面 ２５ａ ‥‥‥‥‥‥‥‥ 内周面 ２６ ‥‥‥‥‥‥‥‥‥ 大径外周面 ２６ａ ‥‥‥‥‥‥‥‥ 外周面 1, 1a, 2 {mirror surface plate 3} cavity 4, 4a, 4b {stamper outer peripheral holder 5} stamper 6} ‥‥‥‥‥‥‥‥‥ Oscutter 7 ‥‥‥‥‥‥‥‥‥‥ Ejector sleeve 8 ス ペ ー サ Spacer 9 内 Stamper inner circumference holder 10 ‥‥‥‥‥‥‥‥‥ sprue bush 11 ‥‥‥‥‥‥‥‥‥ mess cutter 12 環状 annular space 13 ‥‥‥‥‥‥‥‥‥ mirror surface 14 ‥‥表面 Stamper surface 15 ‥‥‥‥‥‥‥‥‥ Annular grooves 16, 17, 19 段 Steps 18, 18a 環状 Annular gaps 20, 21, 23, 24 圧 Compressed air Passage 22 ‥‥‥‥‥‥‥‥‥ Vacuum passage 25 ‥‥‥‥‥‥‥‥‥ Large diameter inner peripheral surface 25 a ‥‥‥‥‥‥‥ ‥ Inner peripheral surface 26 ‥‥‥‥‥‥‥‥‥ Large diameter outer peripheral surface 26a 外 周 Outer peripheral surface
Claims (2)
および可動金型と、固定金型または可動金型のいずれか
一方の鏡面上に配置されるスタンパと、スタンパの外周
を僅かな間隙を有する状態で保持するスタンパ外周ホル
ダと、スタンパ外周ホルダ内に形成される環状空所に開
口する圧空通路とを備えたディスク成形金型において、 キャビティの外周端部を形成するスタンパ外周ホルダの
内周面に、射出充填完了時はキャビティに連通せず僅か
型開したとき連通する環状空隙を設け、該環状空隙に圧
空通路を連通したことを特徴とするディスク成形金型。1. A fixed mold and a movable mold that form a cavity in an abutting surface, a stamper disposed on one of the mirror surfaces of the fixed mold and the movable mold, and a small gap between the outer periphery of the stamper and the stamper. In a disk molding die provided with a stamper outer peripheral holder holding in a state having a stamper and a pressurized air passage opening to an annular space formed in the stamper outer peripheral holder, the stamper outer peripheral holder forming the outer peripheral end of the cavity is provided. A disk molding die, characterized in that an annular gap is provided on the peripheral surface, which does not communicate with the cavity when injection filling is completed, but communicates when the mold is slightly opened, and a compressed air passage communicates with the annular gap.
ティ側におけるスタンパ外周ホルダと鏡面板外周との間
隙は、前記環状空隙の反キャビティ側におけるスタンパ
外周ホルダと鏡面板外周との間隙よりも広いことを特徴
とする請求項１に記載のディスク成形金型。2. When the injection filling is completed, the gap between the outer periphery of the stamper and the outer periphery of the mirror plate on the cavity side of the annular space is wider than the gap between the outer periphery holder of the stamper and the outer periphery of the mirror plate on the side opposite to the annular cavity. The disk molding die according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24177997A JP3215657B2 (en) | 1997-08-21 | 1997-08-21 | Disc molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24177997A JP3215657B2 (en) | 1997-08-21 | 1997-08-21 | Disc molding die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1158467A true JPH1158467A (en) | 1999-03-02 |
| JP3215657B2 JP3215657B2 (en) | 2001-10-09 |
Family
ID=17079404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24177997A Expired - Fee Related JP3215657B2 (en) | 1997-08-21 | 1997-08-21 | Disc molding die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3215657B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010058298A (en) * | 2008-09-01 | 2010-03-18 | National Institute Of Advanced Industrial Science & Technology | Molding mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6935615B1 (en) * | 2019-09-30 | 2021-09-15 | 太陽インキ製造株式会社 | Hardened film |
-
1997
- 1997-08-21 JP JP24177997A patent/JP3215657B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010058298A (en) * | 2008-09-01 | 2010-03-18 | National Institute Of Advanced Industrial Science & Technology | Molding mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3215657B2 (en) | 2001-10-09 |
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