JPS6030388A - Information recording member - Google Patents
Information recording memberInfo
- Publication number
- JPS6030388A JPS6030388A JP58137540A JP13754083A JPS6030388A JP S6030388 A JPS6030388 A JP S6030388A JP 58137540 A JP58137540 A JP 58137540A JP 13754083 A JP13754083 A JP 13754083A JP S6030388 A JPS6030388 A JP S6030388A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- metal
- glass
- recording
- recording member
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はレーザ光などのエネルギービームによって情報
の記録または再生を行なう記録用部材に関するものであ
ろう
〔発明の背景〕
従来、レーザ光照射によって記録・再生を行なう情報の
記録用部材の基板には、ガラス、金属、プラスチックの
うちのいずれかが用いられて来た。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a recording member that records or reproduces information using an energy beam such as a laser beam. [Background of the Invention] Conventionally, recording is performed by irradiating a laser beam. - Glass, metal, or plastic has been used for the substrate of the information recording member used for reproduction.
これらのうちで金属基板は、高速回転するディスクの基
板としては強度などの面で最適である。Among these, metal substrates are optimal as substrates for disks that rotate at high speed in terms of strength.
一方、光ディスクの場合には、厚さ０．１〜３■の透明
板を通して記録膜にレーザ光を集光するようにすると、
透明板の光入射側に着いた塵埃の影響を受けにくいとい
う長所がある。従って何らかの透明板を金属基板と組み
合わせて使用するのが好ましいが、従来適当な組み合わ
せが知られていなかった。On the other hand, in the case of an optical disc, if the laser beam is focused on the recording film through a transparent plate with a thickness of 0.1 to 3 cm,
It has the advantage of being less affected by dust that has arrived on the light incident side of the transparent plate. Therefore, it is preferable to use some kind of transparent plate in combination with a metal substrate, but no suitable combination has been known so far.
本発明の目的は、透明板と金属基板とを組合せ可能な記
録用部材を提供することにある。An object of the present invention is to provide a recording member that can combine a transparent plate and a metal substrate.
上記の目的を達成するために本発明の記録用部材におい
ては、板状金属と板状ガラスとの間に記録膜を形成する
。第１図に構造の一例を示した。In order to achieve the above object, in the recording member of the present invention, a recording film is formed between a plate metal and a plate glass. An example of the structure is shown in FIG.
１が板状金属、２が板状ガラス、３が記録膜である。板
状金属は、ガラスとの線膨張率差がＩ Ｘ １０−’以
下であるのが好ましい。板状金属として適したものは、
チタン、および鉄のうちの少なくとも一者を主成分とす
るものであって、鉄−ニッケル合金が特に好ましい。ニ
ッケルの鉄に対する比率は３０パ一セント以上６０パー
セント以下の範囲が持に好ましい。例えばＮ ｊ５ｏ
Ｆ ｅｓｏ ＋ Ｎ １５２Ｆ ０４ｇ ＋へ’４８
Ｉ！” ｅ５２＋ Ｎ １３ｏ Ｆ ｅ７ａ ＋ Ｎ
１６（ＩＦ ｅ４ｏ ＋ Ｎ” ４２ Ｆ ｅｓ＋ Ｃ
ｒ６などの合金が好ましい。価格等の点ではチタンより
も鉄と主成分とするものの方が良いつ
Ｆｅを含む合金の板では特に、酸化や腐食の可能性があ
る。これを防ぐために少なくともこれらの板の板状ガラ
スに近接しない側の而は、金属、半金楓、半導体、酸化
物、硫化物、窒化物、炭化物、有機物のうちの少なくと
も一者、少なくとも一層で覆うのが好ましい。これらの
層の形成方法としては、メッキ、イオンブレーティング
、イオンビーム蒸着、スパッタ蒸尤、真空蒸着、陽極酸
化、プラズマ中での処理、塗布、プラズマ重合などが行
なえる。これらの層の例としては、クロムメッキ、亜鉛
メッキ、テフロンコーティング、窒化タンタルの反応性
スパッタ蒸着、などの層がある。1 is a plate-shaped metal, 2 is a plate-shaped glass, and 3 is a recording film. It is preferable that the difference in linear expansion coefficient between the sheet metal and the glass is I x 10-' or less. Suitable sheet metals are:
The main component is at least one of titanium and iron, and an iron-nickel alloy is particularly preferable. The ratio of nickel to iron is particularly preferably in the range of 30% or more and 60% or less. For example, N j5o
F eso + N 152F 04g + '48
I! ” e52+ N 13o F e7a + N
16(IF e4o + N” 42 F es+ C
Alloys such as r6 are preferred. In terms of price, etc., it is better to use iron as a main component than titanium. However, there is a possibility of oxidation and corrosion, especially in alloy plates containing Fe. In order to prevent this, at least the side of these plates not adjacent to the sheet glass is made of at least one layer of at least one of metal, semimetal maple, semiconductor, oxide, sulfide, nitride, carbide, and organic material. Preferably covered. Methods for forming these layers include plating, ion blating, ion beam deposition, sputter deposition, vacuum deposition, anodic oxidation, treatment in plasma, coating, and plasma polymerization. Examples of these layers include chrome plating, zinc plating, Teflon coatings, reactive sputter deposition of tantalum nitride, and the like.
板状ガラスは、板状金属よりも外径が小さいと、端部の
打撃による破損を避けやすく、好ましい。It is preferable for sheet glass to have a smaller outer diameter than that of sheet metal, since this makes it easier to avoid damage due to impact at the edges.
更に、例えば第１図に４で示したように、リング状の保
護金属リングをはめてもよい。Furthermore, a ring-shaped protective metal ring may be fitted, for example as shown at 4 in FIG.
上記の板状金属、あるいは板状ガラスは、全面が金属あ
るいはガラスより成る必要はなく、金属にガラスを、あ
るいはガラスに金属をはめ込んだ、あるいははめ込んで
融着したものでもよい。すなわち、少なくとも２板の板
状部材に挾まれた記録膜に再生光などを入射させる部分
が少なくともガラスより形成されていればよい。従って
本発明の変形として第２図に示したように金属板５の一
部にドーナツ状のガラス板６をはめ込んだものを少なく
とも一方の基板として用いることができる。The above-mentioned plate metal or glass plate does not need to be entirely made of metal or glass, and may be one in which glass is fitted into metal, or metal is fitted into glass, or which is fitted and fused. That is, it is sufficient that at least the portion through which the reproduction light is incident on the recording film sandwiched between at least two plate-like members is made of glass. Therefore, as a modification of the present invention, as shown in FIG. 2, a donut-shaped glass plate 6 fitted into a part of a metal plate 5 can be used as at least one of the substrates.
第２図には両方の基俳にガラスをはめ込んだ例を示した
。従って、７も金属板、′８がガラス板である。最外周
部の金属板は、両側の板に渡って一体化し、９で示した
ようなリングとするのが好ましい。Figure 2 shows an example in which both bases are fitted with glass. Therefore, 7 is also a metal plate, and '8 is a glass plate. It is preferable that the metal plate at the outermost periphery is integrated across the plates on both sides to form a ring as shown at 9.
板状金属と板状ガラス、あるいは板状ガラスをはめ込ん
だ板状金属は、（外周、内周の少なくとも一方の）端部
で互いに溶接するか、融着、低融点合金による・・ンダ
付け、銀ロウ付けなどによって、記録膜を密封するよう
にするのがよい。A plate metal and a plate glass, or a plate metal fitted with a plate glass, can be welded together at the edges (at least one of the outer and inner peripheries), fused, soldered with a low melting point alloy, etc. It is preferable to seal the recording film by silver soldering or the like.
本発明において板状金属と板状ガラスとの間に公
形成する記録膜としては、〆知の記録膜のうちのほとん
どのものが使用可能である。In the present invention, most of the known recording films can be used as the recording film formed between the sheet metal and the sheet glass.
記録膜は板状ガラス上に形成した後板状金属と貼シ合わ
せた方が紫外線硬化樹脂によるトラッキング用の溝など
のレプリカが形成しやすいという点で有利である。板状
金属と板状ガラスは密着剥シ合わせせず、一部にスペー
サーを挾んで剥シ合わせると使用できる記録膜の種類が
多くなるが、気圧変化や高速回転時の変形を避けるには
密着貼シ合わせの方が良い。It is advantageous that the recording film is formed on a plate glass and then bonded to a plate metal in that it is easier to form replicas such as tracking grooves using ultraviolet curing resin. The types of recording films that can be used can be expanded by interposing a spacer and peeling the sheet metal and glass sheet together, rather than peeling them together in close contact. It's better to stick them together.
以下に本発明を実施例によって詳細に説明する。 The present invention will be explained in detail below by way of examples.
実施例１
第３図に示したように外径３５２ｍ厚さ１．１圏、内径
３５ｍのディスク状化学強化ガラス１０の表面に紫外線
硬化樹脂によってトラッキング用の溝のレプリカ１１を
形成したものを用意した。この上に真空蒸着法によって
５ｂ３ｏＳｅ７ｏ層１２、次いで１３ｉ層１３を蒸着し
て積層記録膜を形成した。Example 1 As shown in FIG. 3, a disk-shaped chemically strengthened glass 10 with an outer diameter of 352 m, a thickness of 1.1 m, and an inner diameter of 35 m was prepared with a replica 11 of a tracking groove formed using ultraviolet curing resin on the surface thereof. did. A 5b3oSe7o layer 12 and then a 13i layer 13 were deposited thereon by vacuum deposition to form a laminated recording film.
次にこの上にポリスチレン１４をスピン塗布し、エポキ
シ系の接着剤１５によって外径３５５咽、厚さ０．５
ｒｒｍ 、内径３５ＭのＮ １５２Ｆ ｅ４８合金の板
１６を貼り付けた。上記のＮ１−ｐｅ合金板には、あら
かじめ両面にスパッタリングによって５ｒｏｔ層１７．
および１８を設けておいた。第４図にディスク全体の断
面図を示した。１９は保護用のＮｊ５２Ｆ４８合金のリ
ングである。Next, spin-coat polystyrene 14 on top of this, and use epoxy adhesive 15 to make the outer diameter 355 mm and the thickness 0.5 mm.
rrm, a plate 16 of N 152F e48 alloy with an inner diameter of 35M was pasted. The above N1-pe alloy plate has 5 rotary layers 17.
and 18 were provided. FIG. 4 shows a sectional view of the entire disk. 19 is a ring made of Nj52F48 alloy for protection.
上記のようにして作製したディスクに情報を記録するの
は、上記のガラス板を通して記録膜上にレーザ光を集光
することによって行なった。Information was recorded on the disc produced as described above by focusing a laser beam onto the recording film through the glass plate.
Ｎ ｔ５２ ｐ ｅ４８合金板の代わりに、Ｎ ｉｓｏ
Ｆ ｅｓｏ ＋Ｎ ｉ４ｓ Ｆｅ５２１ Ｎ ｆ４ｏ
Ｆ ｅ６Ｑ＋ Ｎ ｉｓｏ Ｆｅ７０などのＮ１−ｐ
ｅ系合金板、Ｎ １４２ Ｆ ｅｓ２Ｃｒａ などのＮ
ｉおよびｐｅに他の金属を加えた合金板、およびチタン
を主成分とする板が使用可能であるっＮ １４２Ｆ ｅ
５２ Ｃｒａ金合金どのＮ１−ｐｅ−Ｃｒ合金の場合に
は、最外周および最内周においてガラスと融着すること
も容易である。５ｂ３ｏＳｅ７０層の代わりにＳｂ２Ｓ
ｅ３などの、Ｓｂを１０〜７０原子数チ含む５ｂ−８ｅ
系材料を用いてもよい。ＴＪ ｉ層の代わシにＢｉ含有
量が３０チ以上のＢｉ−’ｒｅ系合金層を設けてもよい
。１３ｉ含有量は５５％以上がより好ましい。Instead of N t52 p e48 alloy plate, N iso
F eso +N i4s Fe521 N f4o
Fe6Q+ N1-p such as N iso Fe70
N such as e-based alloy plate, N142F es2Cra, etc.
Alloy plates made by adding other metals to i and pe, and plates whose main component is titanium can be used.N 142F e
In the case of N1-pe-Cr alloys such as 52 Cra gold alloy, it is easy to fuse with glass at the outermost and innermost peripheries. Sb2S instead of 5b3oSe70 layer
5b-8e containing 10 to 70 atoms of Sb, such as e3
Other materials may also be used. A Bi-'re alloy layer having a Bi content of 30 or more may be provided in place of the TJ i layer. The 13i content is more preferably 55% or more.
接着剤層１５を形成せず、第５図に示したようにリング
状スペーサー２０および２１を挾んで、スペーサーと合
金板１６およびガラス板１０とを接着剤で貼υ合わせて
もよい。２２はガラス保護用のリングである。２０，２
１、および２２にも１６と同じ合金を用いるのが好まし
いが、これらはアルミニウム、銅などを主成分とする他
の金属あるいは合金を用いてもよい。第５図の構造では
記録膜の一方の面は気体または液体に接しているので、
変形や穴形成による記録が容易である。Instead of forming the adhesive layer 15, the spacer, the alloy plate 16, and the glass plate 10 may be bonded together with an adhesive, sandwiching the ring-shaped spacers 20 and 21 as shown in FIG. 22 is a ring for protecting the glass. 20,2
Although it is preferable to use the same alloy as 16 for 1 and 22, other metals or alloys containing aluminum, copper, etc. as main components may be used for these. In the structure shown in Figure 5, one side of the recording film is in contact with gas or liquid, so
It is easy to record by deformation and hole formation.
実施例２
第６図に示したように、外径３５５叫、厚さ１、５ Ｂ
、内径３５ｍｍのＮ ｉ４ｎ Ｆ ｅ６ｏ合金板２３の
表面にクロームメッキしたものの片面に、紫外線硬化樹
脂によってトラッキング用の溝のレプリカ２４を形成し
たもの全用意した。この上に真空蒸着法によってＢｉ２
Ｔｅ３に近い組成の膜２５、次いでＳｂ２Ｓｅ３に近い
組成の膜２６を蒸着し、積層記録膜を形成した。更にこ
の上にＣｄＳｅに近い組成の膜２７を約５９ｎｍの膜厚
に蒸着して保護層とした。次に第７図に示したように、
外径３５５ｍｍ、厚さ１．２關、内径３５調のＮｊ４゜
Ｆｅ５ｏ合金板３０．３１の直径１２０ｍｍから２８５
咽の範囲をくり抜いたものに、厚さ１．２ｍ、外径２８
５ｗ、内径１２０ｍｍのドーナツ状化学強化ガラス２９
を、端部に接着剤を着けてはめ込んだものを用意した。Example 2 As shown in Fig. 6, the outer diameter is 355 cm, the thickness is 1.5 B
A Ni4nFe6o alloy plate 23 with an inner diameter of 35 mm was plated with chrome on the surface, and a replica 24 of a tracking groove was formed on one side using an ultraviolet curing resin. Bi2 was deposited on top of this by vacuum evaporation method.
A film 25 having a composition close to Te3 and then a film 26 having a composition close to Sb2Se3 were deposited to form a laminated recording film. Furthermore, a film 27 having a composition close to CdSe was deposited on top of this to a thickness of about 59 nm to form a protective layer. Next, as shown in Figure 7,
Outer diameter 355mm, thickness 1.2mm, inner diameter 35mm Nj4゜Fe5o alloy plate 30.31 diameter 120mm to 285
The throat area is hollowed out, 1.2m thick, outer diameter 28mm.
5W, donut-shaped chemically strengthened glass 29 with an inner diameter of 120 mm
A piece was prepared by applying adhesive to the end and fitting it in.
上記のようにして記録膜を着けた合金板２３と、ガラス
をはめ込んだ合金板とを、中心が一致するようにエポキ
シ系の接着剤２８で貼シ合わせた。３２はリング状の金
属よシ成るシールおよび保護部材である。The alloy plate 23 provided with the recording film as described above and the alloy plate fitted with glass were pasted together using an epoxy adhesive 28 so that their centers coincided. 32 is a ring-shaped seal and protection member made of metal.
上記のようにして作製したディスクには、はめ込んだガ
ラス部分から光を入射させ、記録膜上に（９）
光を集光して記録・再生を行なった。Light was incident on the disk prepared as described above through the fitted glass portion, and the light was focused on the recording film (9) for recording and reproduction.
保護層としてはＣｄＳｅに近い組成の膜の代わシに、Ｓ
ｉＯやＧｅＯ２に近い組成のものなどの酸化物や、硫化
物、弗化物の層などを用いることができる。１３ｉ−’
ｌ”ｅ系材料層のＳｂ２Ｓｅ３層とは反対の側に同様な
保護層を設ければ更に効果がある。As a protective layer, instead of a film with a composition close to CdSe, S
A layer of oxide, sulfide, fluoride, etc. having a composition close to iO or GeO2 can be used. 13i-'
It is even more effective if a similar protective layer is provided on the opposite side of the l''e-based material layer from the Sb2Se3 layer.
以上詳述したように本発明の記録用部材は高速回転させ
ても破損する危険が無く、形状の経時変化や記録膜の劣
化のおそれも無く、極めて信頼性の高いものである。As described in detail above, the recording member of the present invention has no risk of breakage even when rotated at high speed, has no risk of change in shape over time, or deterioration of the recording film, and is extremely reliable.
第１図は本発明の記録用部材の構造の一例を示す断面図
、第２図は本発明の記録用部材の構造の他の一例を示す
図、第３図は本発明の一実施例の記録用部材の一部の断
面図、第４図は、第３図の記録用部材の全体の概略図、
第５図は第３図および第４図に示した記録用部材の一変
形を示す図、第６図は本発明の他の一実施例の記録用部
材の−（１０）
部の断面図、第７図は、第６図の記録用部材の全体の平
面図および断面図である。
１・・・板状全域、２・・・板状ガラス、３・・・記録
膜、４、・・保護金属リング、５，７・・・金属板、６
．８・・・ガラス板、９・・・リング、１０・・・ガラ
ス、１１・・・レプリカ、１２−８ ｂ３ｏ ８ ｅｙ
ｏ層、１３・・・Ｂｉ層、１４・・・ポリスチレン、１
５・・・接着剤層、１６・・・合金板、１７．１８・・
・ＳｉＯ２層、１９・・・金層リング、２０．２１・・
・スペーサー、２２・・・リング、２３・・・合金板、
２４・・・レプリカ、２５，２６．２７・・・膜、２８
・・・接着剤、２９・・・ガラス、３０．３１・・・合
金（１１）
第 １ 図
χ ３ 図
第４図
第 ５ 図FIG. 1 is a sectional view showing an example of the structure of the recording member of the present invention, FIG. 2 is a view showing another example of the structure of the recording member of the present invention, and FIG. 3 is a cross-sectional view of an example of the structure of the recording member of the present invention. A cross-sectional view of a part of the recording member, FIG. 4 is a schematic diagram of the entire recording member of FIG. 3,
FIG. 5 is a diagram showing a modification of the recording member shown in FIGS. 3 and 4, and FIG. 6 is a sectional view of the -(10) portion of the recording member of another embodiment of the present invention. 7 is a plan view and a sectional view of the entire recording member shown in FIG. 6. FIG. DESCRIPTION OF SYMBOLS 1... Whole plate-like area, 2... Plate glass, 3... Recording film, 4... Protective metal ring, 5, 7... Metal plate, 6
．． 8... Glass plate, 9... Ring, 10... Glass, 11... Replica, 12-8 b3o 8 ey
o layer, 13... Bi layer, 14... polystyrene, 1
5... Adhesive layer, 16... Alloy plate, 17.18...
・SiO2 layer, 19... Gold layer ring, 20.21...
・Spacer, 22...ring, 23...alloy plate,
24... Replica, 25, 26.27... Membrane, 28
...Adhesive, 29...Glass, 30.31...Alloy (11) Fig. 1 χ 3 Fig. 4 Fig. 5
Claims (1)
ることを特徴とする情報の記録用部材。 ２ 上記の板状金属は鉄を主成分とするものであること
を特徴とする特許請求の範囲第１項記載の情報の記録用
部材。 ３、上記の板状金属は少なくとも鉄とニッケルを含む合
金よシ成ることを特徴とする特許請求の範囲第１項記載
の情報の記録用部材。 ４、 上記の板状金属は、少なくとも上記の板状ガラス
とは反対の側が、他の金属、半金属、半導体、酸化物、
硫化物、弗化物、窒化物、炭化物、有機物のうちの少な
くとも一層、少なくとも一層によって覆われていること
を特徴とする特許請求の範囲第１項記載の情報の記録用
部材。 ５、上記の板状ガラスの最大寸法が、板状金属の最大寸
法よシも小さいことを特徴とする特許請求の範囲第１項
記載の情報の記録用部材。 ６、上記の板状ガラスの端面に接するリング状部材を中
心部および最外部のうち少なくとも一方に有することを
特徴とする特許請求の範囲第１項記載の情報の記録用部
材。 ７、上記の板状ガラスおよび板状金属の両方の端面に接
するリング状部材を中心部および最外部のうちの少なく
とも一方に有することを特徴とする特許請求の範囲第１
項記載の情報の記録用部材。[Scope of Claims] 1. An information recording member characterized in that a recording film is formed between a plate metal and a plate glass. 2. The information recording member according to claim 1, wherein the plate-shaped metal has iron as a main component. 3. The information recording member according to claim 1, wherein the plate metal is made of an alloy containing at least iron and nickel. 4. At least the side of the plate metal plate opposite to the plate glass plate is made of other metals, semimetals, semiconductors, oxides,
The information recording member according to claim 1, characterized in that it is covered with at least one layer selected from sulfide, fluoride, nitride, carbide, and organic substance. 5. The information recording member according to claim 1, wherein the maximum dimension of the sheet glass is smaller than the maximum dimension of the sheet metal. 6. The information recording member according to claim 1, further comprising a ring-shaped member in contact with the end surface of the sheet glass at at least one of the center portion and the outermost portion. 7. Claim 1, characterized by having a ring-shaped member in contact with both end surfaces of the above-mentioned sheet glass and sheet metal in at least one of the center portion and the outermost portion.
A member for recording the information described in the section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58137540A JPS6030388A (en) | 1983-07-29 | 1983-07-29 | Information recording member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58137540A JPS6030388A (en) | 1983-07-29 | 1983-07-29 | Information recording member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6030388A true JPS6030388A (en) | 1985-02-15 |
Family
ID=15201070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58137540A Pending JPS6030388A (en) | 1983-07-29 | 1983-07-29 | Information recording member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0261159A (en) * | 1988-08-23 | 1990-03-01 | Hisaka Works Ltd | Liquid flow-treating device for cloth |
-
1983
- 1983-07-29 JP JP58137540A patent/JPS6030388A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0261159A (en) * | 1988-08-23 | 1990-03-01 | Hisaka Works Ltd | Liquid flow-treating device for cloth |
| JPH0342341B2 (en) * | 1988-08-23 | 1991-06-26 |
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