JPH01286157A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPH01286157A JPH01286157A JP11553588A JP11553588A JPH01286157A JP H01286157 A JPH01286157 A JP H01286157A JP 11553588 A JP11553588 A JP 11553588A JP 11553588 A JP11553588 A JP 11553588A JP H01286157 A JPH01286157 A JP H01286157A
- Authority
- JP
- Japan
- Prior art keywords
- information
- recording medium
- recording
- recorded
- information recording
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 21
- 239000003381 stabilizer Substances 0.000 abstract description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- -1 ethylene, ethylene vinyl Chemical group 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- HNPDNOZNULJJDL-UHFFFAOYSA-N ethyl n-ethenylcarbamate Chemical compound CCOC(=O)NC=C HNPDNOZNULJJDL-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229920002601 oligoester Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- ZTGSNOLGYUVZDM-UHFFFAOYSA-N propan-2-one;1,1,2-trichloro-1,2,2-trifluoroethane Chemical compound CC(C)=O.FC(F)(Cl)C(F)(Cl)Cl ZTGSNOLGYUVZDM-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はディスク型の情報記録媒体に関し特に情報記録
媒体の両面にそれぞれ異なる記録及び／又は再生手段に
よる記録層を設けた情報記録媒体に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk-type information recording medium, and particularly to an information recording medium in which recording layers formed by different recording and/or reproducing means are provided on both sides of the information recording medium.
［従来の技術］
現在光記録媒体として実用化されているものとしては、
音や画像を記録したコンパクトディスクやレーザーディ
スク等に代表される読み出しのみのＲＯＭ型や文書ファ
イルやコンピューター情報の記録などに用いられる１回
だけ書き込めて、書き換えのできない追記型のものがあ
る。これらの光記録媒体は従来の半導体メモリーや磁気
記録メモリーにない高密度記録ができるのが特徴である
。[Prior art] The optical recording media currently in practical use are:
There are read-only ROM types such as compact discs and laser discs that record sound and images, and write-once types that can be written only once and cannot be rewritten, which are used to record document files and computer information. These optical recording media are characterized by the ability to perform high-density recording, which is not possible with conventional semiconductor memories or magnetic recording memories.
しかし上述したこれらの光記録媒体の最大の問題点は記
録情報の書き換え、変更等ができないことにある。However, the biggest problem with these optical recording media mentioned above is that the recorded information cannot be rewritten or changed.
上述した様な光記録媒体のうち記録した情報の検索や管
理には通常の磁気記録媒体であるフロラ（−ディスク等
が用いられている。For searching and managing information recorded in the above-mentioned optical recording media, ordinary magnetic recording media such as Flora disks are used.
この様な方式では記録情報と管理情報とが別の記録媒体
に入っている為そのシステムが繁雑となる。In such a system, the recorded information and management information are stored in separate recording media, making the system complicated.
これらの問題の解決策として特開昭
５６−１６３５３６公報や特開昭５７−６４４６に示さ
れるような一面に光記録層や他面に磁気記録層を備えた
光兼磁気記録媒体が提案されている。As a solution to these problems, optical/magnetic recording media having an optical recording layer on one side and a magnetic recording layer on the other side have been proposed, as shown in Japanese Patent Application Laid-open No. 56-163536 and Japanese Patent Laid-open No. 57-6446. There is.
しかしこの様な形態では複数以上の光兼磁気記録媒体の
光記録面に記録された光情報を同一の磁気記録情報で検
索、管理を行なう場合、個々の記録媒体の磁気記録層に
同一の情報を書き込まなければならない。However, in this form, when searching and managing optical information recorded on the optical recording surface of multiple optical and magnetic recording media using the same magnetic recording information, the same information is stored on the magnetic recording layer of each recording medium. must be written.
［発明が解決しようとしている問題点］本発明は上述の
問題点を解決したものであり、両面に記録層を有する情
報記録媒体において、片面の書き換え可能な記録層に記
録された、もう一方の書換え不可能な記録層に記録され
た情報を検索・管理するための情報を他の書き換え不可
能な記録層に記録された情報の検索・管理にも用いるこ
とができる情報記録媒体を提供することを目的とするも
のである。[Problems to be Solved by the Invention] The present invention solves the above-mentioned problems. To provide an information recording medium in which information for searching and managing information recorded on a non-rewritable recording layer can also be used for searching and managing information recorded on other non-rewritable recording layers. The purpose is to
［問題点を解決する為の手段］
本発明の情報記録媒体は両面に情報の記録層を有する情
報記録媒体であって、その２つの記録層が異なる基板上
に設けられていて、該記録層が着脱自在に接合されてな
ることを特徴とするものである。[Means for solving the problems] The information recording medium of the present invention is an information recording medium having information recording layers on both sides, the two recording layers are provided on different substrates, and the recording layer It is characterized by being removably joined.
即ち１本発明の情報記録媒体は２つの記録層が着脱自在
に構成されているため、一方の書き換え可能な記録層例
えば磁気記録情報に記録された書き換え不可能な記録層
、例えば光記録層に記録された情報を管理・検索する為
の情報を他の情報記録媒体の光記録層に記録された情報
の同一の管理・検索に用いることができる。Namely, since the information recording medium of the present invention has two removable recording layers, one of the rewritable recording layers, such as a non-rewritable recording layer, such as an optical recording layer, in which magnetic recording information is recorded, has two removable recording layers. Information for managing and searching recorded information can be used for the same management and searching of information recorded on the optical recording layer of another information recording medium.
［実施例］ 次に本発明の詳細な説明する。[Example] Next, the present invention will be explained in detail.
本発明による情報記１１１１体に於て、両面にある情報
記録層のうち一方の面は光ビームによって記録及び再生
又は再生される記録層であって、比較的大容量の情報が
記録できる又は記録されていることが望ましい。このと
きの記録層としては読Ｉｉ）ｍりのみの所謂ＲＯＭ型で
も。In the information recording body 1111 according to the present invention, one side of the information recording layers on both sides is a recording layer that is recorded and reproduced or reproduced by a light beam, and is capable of recording or recording a relatively large amount of information. It is desirable that the In this case, the recording layer may be a so-called ROM type, which has only the reading Ii)m.
１回だけ書き込みのできる、追記型でもよい。It may be a write-once type that can be written only once.
即ち、例えばコンパクトディスクの様に追加の書き込み
ができないような記録層でも、ＴｅやＢｉ等の低融点金
属や、ポリメチン系等の染料を基板上に塗布又は蒸着し
、光ビームの照射によってピットが形成されることによ
り情報が記録される、１回だけ書き込みのできる記録層
でもよい。That is, even in a recording layer where additional writing is not possible, such as in a compact disc, a low melting point metal such as Te or Bi or a dye such as polymethine is coated or vapor deposited on the substrate, and pits are formed by irradiation with a light beam. It may be a recording layer that can be written only once, in which information is recorded by being formed.
他方の面は記録情報の消去や書き換えが行なえる様な記
録方法か可能である記録層が望ましく特に磁気記録層や
光磁気記録層、即ち例えばｙ−Ｆｅ２０３やＭｎＣｕＢ
１などの磁性材料の塗布や蒸着によって形成される磁性
膜が好ましい。On the other side, it is desirable to use a recording layer that can be recorded using a recording method that allows erasing and rewriting of recorded information, particularly a magnetic recording layer or a magneto-optical recording layer, such as y-Fe203 or MnCuB.
A magnetic film formed by coating or vapor deposition of a magnetic material such as No. 1 is preferable.
第１図、第２図は本発明に係る情報記ａｍ体の１つの実
施態様を示したものである。FIGS. 1 and 2 show one embodiment of an information storage medium according to the present invention.
第１図は磁気記録層側に光記録層を有する基板のセンタ
ーホールに係合可能なスピンドルを有するものである。FIG. 1 shows a spindle that can be engaged with a center hole of a substrate having an optical recording layer on the side of the magnetic recording layer.
光記録層は磁気記録媒体の′ａｉ気記録面が形成されて
いない側に第１図（ｂ）のように載置され、スタビライ
ザー３で固定される。The optical recording layer is placed on the side of the magnetic recording medium where the optical recording surface is not formed, as shown in FIG. 1(b), and is fixed by a stabilizer 3.
このとき磁気記録媒体側に設けられるスピンドルは、磁
気記録面が形成されていない側に突出している。又光記
録媒体には既に情報が書き込まれていてもよく、従来の
読み出しのみの光ディスクを用いることもできる。磁気
記録媒体の直径は１２０ｍｍ〜１３０ｍｍが好ましい。At this time, the spindle provided on the magnetic recording medium side protrudes to the side where the magnetic recording surface is not formed. Further, information may already be written on the optical recording medium, and a conventional read-only optical disc may also be used. The diameter of the magnetic recording medium is preferably 120 mm to 130 mm.
又スタビライザーの直径は３０ｍｍ〜６０■ｌが好まし
く、又スタビライザーの内周部及びスピンドルの外周部
には相互に保合可能なネジがきっである。The diameter of the stabilizer is preferably 30 mm to 60 l, and the inner circumference of the stabilizer and the outer circumference of the spindle are preferably provided with screws that can be secured to each other.
第２図は本発明に係る別の実施態様を示したものである
。磁気記録媒体は凹状に形成されている。光記録媒体は
この凹部に入れその上部からスタビライザーで固定する
ことにより本発明の情報記録媒体を得られる。FIG. 2 shows another embodiment of the invention. The magnetic recording medium is formed in a concave shape. The information recording medium of the present invention can be obtained by inserting the optical recording medium into this recess and fixing it from above with a stabilizer.
本実施態様においては、磁気記録媒体の直径は１３５ｍ
−〜１５０＋ｓ■、内径は１２０ｍ−〜１４０ｓ＋ａ、
スタビライザーの内径は１１０ｍｍ〜１２０ｍｍが好ま
しい。In this embodiment, the diameter of the magnetic recording medium is 135 m.
-~150+s■, inner diameter is 120m-~140s+a,
The inner diameter of the stabilizer is preferably 110 mm to 120 mm.
更にそれぞれの基板の記録面とは反対側の面同志を剥離
可能な接着剤で接着した構成も有効である。Furthermore, it is also effective to adhere the surfaces of each substrate opposite to the recording surface with a removable adhesive.
ここで用いられる接着剤としては、例えば酢酸ビニル系
、酢酸ビニルアクリル系、酢酸ビニル共重合系、酢酸ビ
ニルエマルジョン系、アクリル系、アクリレート系、ア
クリル共重合系、エチレン系、エチレン酢酸ビニル系、
エチレン酢酸ビニル共重合系、ポリエチレン系、塩化メ
チレン系、ポリアミド系、ポリアミド−アミン系、ポリ
イミド系、ユリア系、エポキシ系、エポキシウレタン系
、エポキシアクリレート系、ウレタンアクリレート系、
ポリエステル系、クロロプレン系、クロロプレンゴム系
、ニトリル系、ニトリルゴム系、ウレタン系、ビニルウ
レタン系、ポリウレタン系、オレフィン系、シアノアク
リレート系、アルキルアクリレート系、塩化ビニル系、
フェノール系、ＳＢＲ系（スチレンブタジェンゴム）、
ポリオール系、シリカアルミナ系１合成ゴム系、エマル
ジョン系、オリゴエステル系、セルロース系、ホルムア
ルデヒド系、紫外線硬化型、有機溶剤、スチレンブタジ
ェン系、フレオンＴＡ系等が利用できる。Examples of adhesives used here include vinyl acetate, vinyl acetate acrylic, vinyl acetate copolymer, vinyl acetate emulsion, acrylic, acrylate, acrylic copolymer, ethylene, ethylene vinyl acetate,
Ethylene vinyl acetate copolymer, polyethylene, methylene chloride, polyamide, polyamide-amine, polyimide, urea, epoxy, epoxyurethane, epoxy acrylate, urethane acrylate,
Polyester type, chloroprene type, chloroprene rubber type, nitrile type, nitrile rubber type, urethane type, vinyl urethane type, polyurethane type, olefin type, cyanoacrylate type, alkyl acrylate type, vinyl chloride type,
Phenol type, SBR type (styrene butadiene rubber),
Polyol type, silica alumina type 1 synthetic rubber type, emulsion type, oligoester type, cellulose type, formaldehyde type, ultraviolet curing type, organic solvent type, styrene butadiene type, Freon TA type, etc. can be used.
実際の使用に於てはこれらの中から適度な接着力をもつ
ものを選べばよい。In actual use, one may be selected from among these with appropriate adhesive strength.
［発明の効果］
以上説明したように本発明の情報記録媒体によって一方
の面に記録された、他方の面に記録されているＲＯＭ情
報の管理・検索の為の情報を、他の情報記録媒体に記録
されている同種の情報の管理・検索に用いることができ
る。[Effects of the Invention] As explained above, information for managing and searching ROM information recorded on one side of the information recording medium of the present invention and recorded on the other side can be transferred to another information recording medium. It can be used to manage and search the same type of information recorded in .
第１図、及び第２図は本発明に係る情報記録媒体の第１
及び第２の実施態様である。
ｌ・・・光記録媒体
２・・・磁気記録媒体
２（ａ）・・・磁気記録面
３・・・スタビライザー
４・・・スピンドル
５・・・センターホールFIG. 1 and FIG. 2 show a first diagram of an information recording medium according to the present invention.
and a second embodiment. l... Optical recording medium 2... Magnetic recording medium 2(a)... Magnetic recording surface 3... Stabilizer 4... Spindle 5... Center hole
Claims (1)
その２つの記録層が異なる基板上に設けられていて、該
記録層が着脱自在に接合されてなることを特徴とする情
報記録媒体。 ２）該記録層の一方は光ビームにより記録及び再生、又
は再生が行われ、他方は前者と異なる記録及び再生方法
であって消去及び／又は書き換えが可能である特許請求
の範囲第１項記載の情報記録媒体。 ３）該記録層の一方にピットによる記録が既に行なわれ
ている特許請求の範囲第２項記載の情報記録媒体。 ４）消去及び／又は書き換えが可能な記録層が磁気記録
層である特許請求の範囲第２項記載の情報記録媒体。 ５）磁気記録層が、塗布によって基板上に設けられた特
許請求の範囲第４項記載の情報記録媒体。 ６）磁気記録層が蒸着によって基板上に設けられた特許
請求の範囲第４項記載の情報記録媒体。 ７）消去及び／又は書き換え可能な記録層が光磁気記録
層である特許請求の範囲第２項記載の情報記録媒体。[Claims] 1) An information recording medium having information recording layers on both sides, in which the two recording layers are provided on different substrates, and the recording layers are removably joined. Characteristic information recording media. 2) One of the recording layers is recorded and reproduced by a light beam, and the other is erased and/or rewritable by a different recording and reproduction method from the former, according to claim 1. information recording medium. 3) The information recording medium according to claim 2, wherein recording by pits has already been performed on one of the recording layers. 4) The information recording medium according to claim 2, wherein the erasable and/or rewritable recording layer is a magnetic recording layer. 5) The information recording medium according to claim 4, wherein the magnetic recording layer is provided on the substrate by coating. 6) The information recording medium according to claim 4, wherein the magnetic recording layer is provided on the substrate by vapor deposition. 7) The information recording medium according to claim 2, wherein the erasable and/or rewritable recording layer is a magneto-optical recording layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553588A JPH01286157A (en) | 1988-05-12 | 1988-05-12 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11553588A JPH01286157A (en) | 1988-05-12 | 1988-05-12 | Information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01286157A true JPH01286157A (en) | 1989-11-17 |
Family
ID=14664940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11553588A Pending JPH01286157A (en) | 1988-05-12 | 1988-05-12 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01286157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026551A1 (en) * | 1994-03-28 | 1995-10-05 | Minnesota Mining And Manufacturing Company | Updatable optical storage medium |
-
1988
- 1988-05-12 JP JP11553588A patent/JPH01286157A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026551A1 (en) * | 1994-03-28 | 1995-10-05 | Minnesota Mining And Manufacturing Company | Updatable optical storage medium |
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