JPH04373204A - Manufacture of electromagnetic reflection plate - Google Patents
Manufacture of electromagnetic reflection plateInfo
- Publication number
- JPH04373204A JPH04373204A JP17728691A JP17728691A JPH04373204A JP H04373204 A JPH04373204 A JP H04373204A JP 17728691 A JP17728691 A JP 17728691A JP 17728691 A JP17728691 A JP 17728691A JP H04373204 A JPH04373204 A JP H04373204A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- logo
- pvc
- electromagnetic wave
- logotype
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 33
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は例えば衛星放送等のアン
テナとして用いられる電磁波反射板に関するものである
。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave reflecting plate used, for example, as an antenna for satellite broadcasting.
【０００２】0002
【従来の技術】この種の電磁波反射板には表面に文字、
記号、模様等のロゴが付される場合がある。従来はこの
ような電磁波反射板はパラボラ状に成形されたガラス繊
維強化プラスチックからなる基材の表面に導電性塗料を
吹付けたり、アルミメッシュ等を貼着した後、塗料を吹
付けたりして反射層を形成した構成のものが提供されて
おり、このような従来の電磁波反射板の表面にロゴを付
すには印刷あるいはロゴを付したシール貼着等の方法が
採用されていた。[Prior art] This type of electromagnetic wave reflector has letters on its surface.
A logo such as a symbol or pattern may be attached. Conventionally, such electromagnetic wave reflectors were made by spraying conductive paint onto the surface of a base material made of glass fiber-reinforced plastic molded into a parabolic shape, or by pasting aluminum mesh, etc., and then spraying paint. A structure in which a reflective layer is formed has been provided, and in order to attach a logo to the surface of such a conventional electromagnetic wave reflector, methods such as printing or pasting of a sticker with the logo attached have been adopted.
【０００３】0003
【発明が解決しようとする課題】しかし上記従来方法で
は電磁波反射板の表面が三次元的曲面になっているから
、このような曲面の決められた位置に印刷を施したり、
シールを貼着することは非常に難しく、ロゴの形状、寸
法が制限されたり、ロゴにずれやゆがみが発生したりす
る問題があった。[Problems to be Solved by the Invention] However, in the above conventional method, since the surface of the electromagnetic wave reflecting plate is a three-dimensional curved surface, it is difficult to print at a predetermined position on such a curved surface.
It is extremely difficult to apply stickers, and there are problems in that the shape and dimensions of the logo are limited, and the logo may be misaligned or distorted.
【０００４】ロゴにずれやゆがみが発生すれば電磁波反
射板そのものの品質に問題はなくても、ロゴの点だけで
不良品として扱わねばならず、この種の電磁波反射板で
は不良品の回収は不可能であるから歩留りが低下し生産
コストが著しく高くなる。[0004] If the logo is misaligned or distorted, even if there is no problem with the quality of the electromagnetic wave reflector itself, it must be treated as a defective product just because of the logo, and it is difficult to collect defective products with this type of electromagnetic wave reflector. Since this is not possible, yields are reduced and production costs are significantly increased.
【０００５】ロゴを電磁波反射板表面に正確に付すには
作業者の熟練が要求されるが、熟練した作業者であって
も電磁波反射板表面に１００％正確にロゴを付すことは
不可能である。[0005] Accurately attaching the logo to the surface of the electromagnetic wave reflector requires skill from the operator, but even a skilled worker cannot attach the logo to the surface of the electromagnetic wave reflector with 100% accuracy. be.
【０００６】[0006]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、鋼板の表面にポリ塩化ビ
ニルゾルを塗布し、加熱ゲル化させてポリ塩化ビニル皮
膜を形成する工程１該ポリ塩化ビニル皮膜表面にロゴを
付す工程２該鋼板をパラボラ状にプレス成形する工程３
以上の工程１，２，３からなる電磁波反射板の製造方法
を提供するものである。[Means for Solving the Problems] The present invention provides a step 1 in which a polyvinyl chloride sol is applied to the surface of a steel plate and heated to gel to form a polyvinyl chloride film. Step 2 of attaching a logo to the surface of the polyvinyl chloride film Step 3 Press forming the steel plate into a parabolic shape
The present invention provides a method for manufacturing an electromagnetic wave reflecting plate comprising steps 1, 2, and 3 above.
【０００７】[0007]
【作用】本発明では反射層と基材とを兼ねて鋼板を用い
るからプレス成形によりパラボラ状に成形することが可
能である。そこでポリ塩化ビニル（ＰＶＣ）皮膜を表面
に形成した鋼板（ＰＶＣ被覆鋼板）に対して、成形前に
その表面に印刷またはシール貼着等の手段によってロゴ
を付せば、ロゴを付す段階ではＰＶＣ被覆鋼板の表面は
平面になっている。[Operation] In the present invention, since a steel plate is used as both the reflective layer and the base material, it is possible to form the reflective layer into a parabolic shape by press molding. Therefore, if a logo is attached to the surface of a steel plate with a polyvinyl chloride (PVC) film formed on the surface (PVC-coated steel plate) by printing or pasting a sticker before forming, the PVC film will be used at the stage of attaching the logo. The surface of the coated steel plate is flat.
【０００８】[0008]
【実施例】本発明を図１〜図７に示す一実施例によって
以下に説明する。工程１では図１に示すように帯状の鋼
板（１） の表面にナイフコーター（６）ＡによってＰ
ＶＣゾル（２） を塗布し、加熱炉（６）Ｂにおいて該
ＰＶＣゾル（２） を加熱ゲル化させてＰＶＣ皮膜（２
）Ａを形成せしめ、その後カッター（６）Ｃで該ＰＶＣ
被覆鋼板（１）Ａを所定寸法に切断する。該鋼板（１）
としては亜鉛メッキ鋼板等の軟質鋼板が用いられる。
該ＰＶＣゾル（２） には顔料、染料、着色プラスチッ
ク片、マイカ、魚鱗等の加飾材が分散されてもよいし、
該ＰＶＣゾル（２） を模様状に塗布して加飾し、商品
価値を高めることが出来る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below using an embodiment shown in FIGS. 1 to 7. In step 1, as shown in Figure 1, the surface of the strip-shaped steel plate (1) is coated with P by a knife coater (6) A.
A VC sol (2) is applied, and the PVC sol (2) is heated and gelled in a heating furnace (6) B to form a PVC film (2).
)A, and then cut the PVC with a cutter (6)C.
Cut the coated steel plate (1) A into predetermined dimensions. The steel plate (1)
A soft steel plate such as a galvanized steel plate is used. Decorative materials such as pigments, dyes, colored plastic pieces, mica, and fish scales may be dispersed in the PVC sol (2),
The PVC sol (2) can be applied and decorated in a pattern to increase the commercial value.
【０００９】工程２では図２に示すように該ＰＶＣ被覆
鋼板（１）Ａ表面の所定位置にシルクスクリーン印刷機
（６）Ｄを用いてロゴ（３） を印刷する。該ロゴ（３
） は文字、記号、模様等であり、該ロゴ（３） をＰ
ＶＣ被覆鋼板（１）Ａの表面に付すには上記スクリーン
印刷の他、タンポ印刷、オフセット印刷、グラビアロー
ル印刷等が適用されることが出来、またロゴ（３） を
付したシールやラベル等を貼着してもよい。また多色印
刷も可能である。本発明ではロゴ（３） は平面状のＰ
ＶＣ被覆鋼板（１）Ａ表面に付されるから、ロゴ（３）
の形状、寸法、色彩等には何等の制限も存在しない。
またロゴ（３） はロゴ（３） を付した部分のＰＶＣ
被覆鋼板（１）Ａ表面が後記する工程３におけるプレス
成形で三次元的曲面となった場合に、所定のロゴ形状が
得られるような形状に設定しておく。In step 2, as shown in FIG. 2, a logo (3) is printed at a predetermined position on the surface of the PVC-coated steel plate (1) A using a silk screen printer (6) D. The logo (3
) are letters, symbols, patterns, etc., and the logo (3) is P
In addition to the above-mentioned screen printing, pad printing, offset printing, gravure roll printing, etc. can be applied to the surface of the VC coated steel plate (1) A, and stickers and labels with the logo (3) can also be applied. It may also be pasted. Multicolor printing is also possible. In the present invention, the logo (3) is a flat P
VC coated steel plate (1) Since it is attached to the A surface, the logo (3)
There are no restrictions on the shape, size, color, etc. Also, the logo (3) is the PVC part with the logo (3) attached.
The coated steel plate (1) is set to a shape that will yield a predetermined logo shape when the surface of A is formed into a three-dimensional curved surface by press forming in step 3, which will be described later.
【００１０】工程３では図３に示すように上記ロゴ付Ｐ
ＶＣ被覆鋼板（１）Ａを上型（９）Ａと下型（９）Ｂと
からなるプレス成形型（９）によってパラボラ状に成形
して、周縁にフランジ部（１１）Ｂ を形成したパラボ
ラ形状ＰＶＣ被覆鋼板（１）Ｂとする。この時該ＰＶＣ
皮膜（２）Ａと型面とは良好な滑りを示し、ポリプロピ
レンフィルム等の低摩擦フィルムの介装することは不要
である。また該鋼板（１） の厚みが０．４５ｍｍ以上
であるとプレス成形後に形戻りするおそれがある。In step 3, as shown in FIG.
A paraboloid in which a VC-coated steel plate (1)A is formed into a parabolic shape by a press mold (9) consisting of an upper mold (9)A and a lower mold (9)B, and a flange portion (11)B is formed on the periphery. Shape: PVC coated steel plate (1) B. At this time, the PVC
Coating (2) A and the mold surface exhibit good sliding properties, and there is no need to interpose a low-friction film such as a polypropylene film. Moreover, if the thickness of the steel plate (1) is 0.45 mm or more, there is a risk that the steel plate (1) will return to its shape after press forming.
【００１１】上記工程１，２，３により電磁波反射板の
本体であるパラボラ形状ＰＶＣ被覆鋼板（１）Ｂが得ら
れるが、本実施例においては、更に該パラボラ形状ＰＶ
Ｃ被覆鋼板（１）Ｂにプラスチック層を裏打ちして補強
を行なう。上記裏打ちに用いられるプラスチックとして
は、アクリロニトリル−ブタジエン−スチレン共重合体
、アクリロニトリル−エチルアクリレート−スチレン共
重合体、ポリフェニレンオキサイド、ポリカーボネート
等の射出成形可能な熱可塑性プラスチックが用いられる
。The parabolic PVC-coated steel plate (1)B, which is the main body of the electromagnetic wave reflecting plate, is obtained by the above steps 1, 2, and 3. In this example, the parabolic PVC-coated steel plate (1)B is
C-coated steel plate (1) B is reinforced by lining it with a plastic layer. As the plastic used for the lining, injection moldable thermoplastics such as acrylonitrile-butadiene-styrene copolymer, acrylonitrile-ethyl acrylate-styrene copolymer, polyphenylene oxide, and polycarbonate are used.
【００１２】上記プラスチックの裏打ちを行なうには、
図４に示すようにまず該パラボラ形状ＰＶＣ被覆鋼板（
１）Ｂの裏面に裏打層（５） との層間接着力を向上さ
せるためにホットメルト接着層（４） を形成してから
射出成形金型（７） に内挿する。この時、該鋼板（１
） の厚みが０．２０ｍｍ以下であると鋼板（１） が
曲がり易く、金型（７） への内挿作業が困難となる。
該射出成形金型（７） はスプール（７３）が設けられ
ている固定型（７１）と、可動型（７２）とからなり、
該パラボラ形状ＰＶＣ被覆鋼板（１）Ｂは該可動型（７
２）側の磁石（７４），（７４） に磁着されている。
更に固定型（７１）側には電磁波反射板（１）Ｃの脚部
となる金具（８），（８） が内挿されている。そして
裏打層（５） 材料の熱可塑性プラスチック溶融物が固
定型（７１）のスプール（７３）から固定型（７１）と
可動型（７２）との間に形成されているキャビティ（７
５）内に射出されるが、この際の射出圧は通常３０〜５
００ｋｇ／ｃｍ２ とされる。この際、プレス成形時に
発生する鋼板（１） のしわおよびＰＶＣ皮膜（２）Ａ
のしわは上記射出により鋼板（１） およびＰＶＣ皮膜
（２）Ａが可動型（７２）の型面に押付けられることに
よって矯正されるが、該鋼板（１） の厚みが０．４５
ｍｍ以上であるとこのような矯正が困難になる。しかし
該鋼板（１） の厚みが０．２０ｍｍ以下であると図５
の点線に示すように射出圧によって該鋼板（１） のフ
ランジ部（１１）Ｂ が外側へ変形して裏打層（５）
から該鋼板（１） の端面が露出するおそれがある。該
鋼板（１） の厚みと成形性との関係を表１に示す。[0012] To perform the above plastic lining,
As shown in Fig. 4, first the parabolic PVC coated steel plate (
1) A hot melt adhesive layer (4) is formed on the back side of B to improve interlayer adhesion with the backing layer (5), and then inserted into an injection mold (7). At this time, the steel plate (1
) If the thickness of the steel plate (1) is less than 0.20 mm, the steel plate (1) is likely to bend, making it difficult to insert the steel plate (7) into the mold (7). The injection mold (7) consists of a fixed mold (71) provided with a spool (73) and a movable mold (72),
The parabolic PVC coated steel plate (1)B is connected to the movable type (7
It is magnetically attached to the magnets (74) and (74) on the 2) side. Furthermore, metal fittings (8), (8) which become the legs of the electromagnetic wave reflecting plate (1)C are inserted into the fixed mold (71) side. and a backing layer (5) in which the thermoplastic melt of material is deposited from the spool (73) of the fixed mold (71) into the cavity (7) formed between the fixed mold (71) and the movable mold (72).
5) The injection pressure at this time is usually 30 to 5
00kg/cm2. At this time, wrinkles on the steel plate (1) that occur during press forming and PVC coating (2) A
The wrinkles are corrected by pressing the steel plate (1) and the PVC coating (2) A against the mold surface of the movable mold (72) through the injection process, but the thickness of the steel plate (1) is 0.45 mm.
If it is larger than mm, such correction becomes difficult. However, if the thickness of the steel plate (1) is 0.20 mm or less,
As shown by the dotted line, the flange part (11)B of the steel plate (1) deforms outward due to the injection pressure, forming the backing layer (5).
There is a risk that the end face of the steel plate (1) may be exposed. Table 1 shows the relationship between the thickness and formability of the steel plate (1).
【００１３】[0013]
【表１】
しわ矯正性 ◎：完全に矯正される ○：
殆ど矯正される
△：若干しわが残る ×：殆ど矯正されない
圧延プレス性◎：極めて容易 ○：
容易△：若干困難 ×：困難内
挿作業性 ◎：極めて容易 ○：
容易△：若干困難 ×：困難フ
ランジ部変形◎：変形全くなし ○：変
形なし△：変形ややあり ×：変形し端
面露出[Table 1] Wrinkle correction properties ◎: Completely corrected ○:
Almost straightened △: Some wrinkles remain ×: Hardly straightened rolling pressability ◎: Extremely easy ○:
Easy △: Slightly difficult ×: Difficult interpolation workability ◎: Extremely easy ○:
Easy △: Slightly difficult ×: Difficult flange deformation ◎: No deformation at all ○: No deformation △: Slight deformation ×: Deformed and end face exposed
【００１４】表１をみると鋼板（１） の厚みが
０．２０〜０．４５ｍｍであればしわ矯正性、圧延プレ
ス性、内挿作業性共に容易であり、フランジ部（１１）
Ｂ の変形はないことが明らかである。Table 1 shows that if the thickness of the steel plate (1) is 0.20 to 0.45 mm, it is easy to correct wrinkles, roll and press, and insert the steel plate, and the flange part (11)
It is clear that there is no deformation of B.
【００１５】上記のようにして図６に示す表面にロゴ（
３） を付した電磁波反射板（１）Ｃが製造される。上
記電磁波反射板（１）Ｃにおいて、図７に示すように裏
打層（５） はパラボラ形状ＰＶＣ被覆鋼板（１）Ｂの
フランジ部（１１）Ｂ の表側に回り込んで形成され、
鋼板（１） が該電磁波反射板（１）Ｃの周縁において
露出しないようにされている。As described above, the logo (
3) An electromagnetic wave reflecting plate (1)C with the following is manufactured. In the electromagnetic wave reflecting plate (1)C, as shown in FIG. 7, the backing layer (5) is formed by wrapping around the front side of the flange part (11)B of the parabolic PVC-coated steel plate (1)B,
The steel plate (1) is prevented from being exposed at the periphery of the electromagnetic wave reflecting plate (1)C.
【００１６】[0016]
【発明の効果】したがって本発明においては、ＰＶＣ被
覆鋼板の成形前であって表面が平面状の状態の時にロゴ
が付されるから後加工が省略され、ロゴの形状、寸法、
色彩等についての制限がなく、また熟練を要せずして正
しい位置にずれやゆがみなくロゴを付することが出来歩
留りが大巾に向上する。またロゴを付する工程を自動化
することも出来、電磁波反射板の製造を自動組立てライ
ンで行なうことが出来る。Therefore, in the present invention, since the logo is attached to the PVC-coated steel sheet before forming and when the surface is flat, post-processing is omitted, and the shape, size, and shape of the logo can be easily adjusted.
There are no restrictions on colors, etc., and the logo can be attached to the correct position without shifting or distortion without requiring any skill, greatly improving yield. Furthermore, the process of attaching the logo can be automated, and the electromagnetic wave reflector can be manufactured on an automatic assembly line.
【００１７】[0017]
図１〜図７は本発明の一実施例を示すものである。 1 to 7 show one embodiment of the present invention.
【図１】工程１説明図[Figure 1] Process 1 explanatory diagram
【図２】工程２説明図[Figure 2] Process 2 explanatory diagram
【図３】工程３説明図[Figure 3] Process 3 explanatory diagram
【図４】裏打ち工程説明図[Figure 4] Diagram explaining the lining process
【図５】フランジ部分裏打ち工程説明図[Figure 5] Explanation diagram of flange part lining process
【図６】製品斜
視図[Figure 6] Product perspective view
【図７】製品フランジ部分断面図[Figure 7] Partial cross-sectional view of product flange
（１） 鋼板
（１）Ａ ＰＶＣ被覆鋼板
（１）Ｂ パラボラ形状ＰＶＣ被覆鋼板（１）Ｃ
電磁波反射板
（２） ＰＶＣゾル
（２）Ａ ＰＶＣ皮膜
（３） ロゴ(1) Steel plate (1)A PVC-coated steel plate (1)B Parabolic-shaped PVC-coated steel plate (1)C
Electromagnetic wave reflector (2) PVC sol (2) A PVC film (3) Logo
Claims (1)
、加熱ゲル化させてポリ塩化ビニル皮膜を形成する工程
１該ポリ塩化ビニル皮膜表面にロゴを付す工程２該鋼板
をパラボラ状にプレス成形する工程３以上の工程１，２
，３からなる電磁波反射板の製造方法1. Step of applying polyvinyl chloride sol to the surface of the steel plate and heating it to gel to form a polyvinyl chloride film. 1. Adding a logo to the surface of the polyvinyl chloride film. 2. Press-forming the steel plate into a parabolic shape. Steps 1 and 2 of Step 3 and above
, a method for manufacturing an electromagnetic wave reflecting plate consisting of 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17728691A JPH04373204A (en) | 1991-06-21 | 1991-06-21 | Manufacture of electromagnetic reflection plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17728691A JPH04373204A (en) | 1991-06-21 | 1991-06-21 | Manufacture of electromagnetic reflection plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04373204A true JPH04373204A (en) | 1992-12-25 |
Family
ID=16028375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17728691A Withdrawn JPH04373204A (en) | 1991-06-21 | 1991-06-21 | Manufacture of electromagnetic reflection plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04373204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220217A (en) * | 2009-03-16 | 2010-09-30 | Samsung Electro-Mechanics Co Ltd | Method of manufacturing case of mobile communication terminal, and case of mobile communication terminal and mobile communication terminal produced by employing the same |
-
1991
- 1991-06-21 JP JP17728691A patent/JPH04373204A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220217A (en) * | 2009-03-16 | 2010-09-30 | Samsung Electro-Mechanics Co Ltd | Method of manufacturing case of mobile communication terminal, and case of mobile communication terminal and mobile communication terminal produced by employing the same |
| US8442603B2 (en) | 2009-03-16 | 2013-05-14 | Samsung Electro-Mechanics Co., Ltd. | Method of manufacturing case for mobile communications terminal, case for mobile communications terminal, and mobile communications terminal having the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980903 |