JPH0557863A - Decorative panel and manufacture thereof - Google Patents
Decorative panel and manufacture thereofInfo
- Publication number
- JPH0557863A JPH0557863A JP14888691A JP14888691A JPH0557863A JP H0557863 A JPH0557863 A JP H0557863A JP 14888691 A JP14888691 A JP 14888691A JP 14888691 A JP14888691 A JP 14888691A JP H0557863 A JPH0557863 A JP H0557863A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- decorative
- transparent
- layer
- transparent plastic
- 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
Landscapes
- Printing Methods (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、所望に応じて表裏それ
ぞれ異なる絵柄を有する化粧パネルであって、それを通
して向う側が見えるものに関し、その製造方法をも包含
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel having different patterns on the front surface and the back surface as desired, through which the opposite side can be seen, and also includes a manufacturing method thereof.
【0002】[0002]
【従来の技術】透明なドア、窓、室内の間仕切りなどの
両側で、その透視性や透光性をあまり妨げずに、それぞ
れ反対側とは異なる表示をしたいという要望がある。
この要望にこたえた化粧スクリーンとして、出願人は、
透明なプラスチックフィルムに隠蔽性インキで表絵柄と
裏絵柄を印刷し、全体に多数の透孔を設けてなるものを
提案した(実開平1−68498号)。2. Description of the Related Art There is a demand for displaying on both sides of a transparent door, a window, a room partition or the like, which is different from that on the opposite side, without significantly impairing the transparency and translucency.
As a makeup screen that responds to this request, the applicant
We proposed a method in which a front and back pictures are printed on a transparent plastic film with a concealing ink, and a large number of through holes are provided on the whole (Saikaihei 1-68498).
【0003】この化粧スクリーンの代表的な使用法は、
印刷面に透明な粘着剤を塗布して窓などに貼り、基材フ
ィルムが表面保護層としてはたらくようにするものであ
る。ところが、化粧スクリーンを貼るときに、押圧によ
り粘着剤が透孔部分にはみだすことが避けられず、長期
間使用すると粘着剤にホコリが付着して蓄積し、美観を
そこなうばかりでなくスクリーンの透視(透光)性が低
下してしまう。A typical use of this makeup screen is
A transparent adhesive is applied to the printed surface and attached to a window or the like so that the base film acts as a surface protective layer. However, when applying a makeup screen, it is unavoidable that the adhesive will stick out to the through-hole part due to pressing, and if it is used for a long period of time, dust will adhere to the adhesive and accumulate, which not only impairs the appearance but also the see-through of the screen ( Translucency) will be reduced.
【0004】上記の問題を解決した化粧スクリーンとし
て、透明なプラスチックまたはガラス製の基材の上に多
数の小さな透明部分を残した印刷層を転写法で設けてな
り、この印刷層が隠蔽インキ層をはさんでその両側に表
面絵柄層と裏面絵柄層とを有する構造である化粧スクリ
ーンを別に提案した(特開平3−69397号)。As a decorative screen that solves the above problems, a printing layer having a large number of small transparent portions is provided on a transparent plastic or glass substrate by a transfer method, and the printing layer is a concealing ink layer. A separate makeup screen having a structure having a front pattern layer and a back pattern layer on both sides thereof was proposed separately (Japanese Patent Laid-Open No. 3-69397).
【0005】この化粧スクリーンは、印刷層が露出して
いるため、曲面加工が困難である。曲面のものをつくる
には、あらかじめ加工した基材に印刷層を転写すること
が考えられるが、それではインライン加工が難しくなり
生産性が低下する。Since the printed layer is exposed in this decorative screen, curved surface processing is difficult. In order to make a curved surface, it is conceivable to transfer the printing layer to a pre-processed substrate, but this makes in-line processing difficult and reduces productivity.
【0006】このため、在来の化粧スクリーンの用途
は、ディスプレイに変化をもたせるためにショーウイン
ドーに貼るようなものに限られ、室内の間仕切り、とく
に曲面形状をもつものにはあまり使用できなかった。[0006] Therefore, the conventional use of the makeup screen is limited to the one applied to the show window in order to give the display a change, and it cannot be used so much for the room partition, especially the one having the curved shape.
【0007】[0007]
【発明が解決しようとする課題】本発明の目的は、種々
のディスプレイへの適用はもちろん、室内の間仕切りや
ロールブラインドなどにも使用できる透視可能な化粧パ
ネルを提供すること、およびそのような化粧パネルの量
産を容易にする製造方法を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a see-through decorative panel which can be applied not only to various displays but also to interior partitions and roll blinds, and such a makeup. It is to provide a manufacturing method that facilitates mass production of panels.
【0008】[0008]
【課題を解決するための手段】本発明の化粧パネルは、
一例を図1ないし図3に示すように、両面に異なる絵柄
を有するシートに多数の小孔を設けるか、またはそれに
相当する透明部分を設けて透視可能とした化粧シートの
一方または両方の面に、透明なプラスチックの基材
(4)を貼り合わせてなる。The decorative panel of the present invention comprises:
As shown in FIGS. 1 to 3, for example, a sheet having different patterns on both sides is provided with a large number of small holes, or a transparent portion corresponding thereto is provided on one or both sides of a decorative sheet which is transparent. , A transparent plastic substrate (4) is attached.
【0009】基材としては成形の容易な材料を使用する
ことが好ましく、そのようなプラスチックの例をあげれ
ば、ポリ塩化ビニル、ポリスチレン、ポリエチレン、ポ
リプロピレン、ポリカーボネート、ポリメチルメタクリ
レート、ポリエチレンテレフタレート、トリアセチルセ
ルロース、およびポリフッ化ビニリデンである。 これ
らのプラスチックのフィルムの積層体であってもよい。
それらのプラスチックに紫外線吸収剤を添加しておく
と、絵柄の印刷の退色を防ぐことができる。It is preferable to use a material that can be easily molded as the substrate. Examples of such plastics include polyvinyl chloride, polystyrene, polyethylene, polypropylene, polycarbonate, polymethylmethacrylate, polyethylene terephthalate and triacetyl. Cellulose and polyvinylidene fluoride. It may be a laminate of these plastic films.
By adding an ultraviolet absorber to these plastics, it is possible to prevent the fading of the printed pattern.
【0010】基材の厚さは、化粧パネルの用途に応じて
任意にえらぶ。 たとえば、オフィスのパーティション
に使用するときは、ある程度の強度と剛性が求められる
から厚いものがよく、ロールブラインドに使用するとき
は可撓性が求められるから、薄く柔軟なものがよい。The thickness of the base material is arbitrarily selected according to the application of the decorative panel. For example, when it is used for an office partition, it is required to have a certain level of strength and rigidity, so that it is preferably thick, and when it is used for a roller blind, it is required to be flexible, so that it is preferably thin and flexible.
【0011】化粧シートの一方にだけ基材を積層する場
合、印刷面側に積層することが、印刷を保護することに
なって好ましい。When the base material is laminated only on one side of the decorative sheet, it is preferable to laminate the base material on the printing surface side in order to protect the printing.
【0012】両面に異なる絵柄を有し、前記した機構に
より透視可能である化粧シートの具体的な構成は、すで
にいくつか提案されている。 本発明でも、それらを選
択使用すればよい。 まず、図3に示したような、透明
なプラスチックシート(1)上に、裏面絵柄層(2
3)、隠蔽インキ層(22)および表面絵柄層(21)
を順に設けた印刷層(2)を形成し、多数の透孔(3)
を穿孔した化粧シートがある。 同様な効果は、不透明
なプラスチックシートの一方の面に裏面絵柄層を、他方
の面に表面絵柄層をそれぞれ設け、多数の透孔を穿孔し
た化粧シートにおいても得られる。 そのほか、透明な
プラスチックシート上に、多数の小さな透明部分が残る
ように、裏面絵柄層、隠蔽インキ層および表面絵柄層を
順に見当あわせ印刷した化粧シートも使用できる。[0012] Several specific structures of a decorative sheet having different patterns on both sides and see-through by the above-mentioned mechanism have already been proposed. Also in the present invention, these may be selectively used. First, on the transparent plastic sheet (1) as shown in FIG.
3), hiding ink layer (22) and surface pattern layer (21)
Forming a printing layer (2) in which a plurality of through holes (3) are provided.
There is a perforated decorative sheet. The same effect can be obtained in a decorative sheet in which a back surface pattern layer is provided on one surface of an opaque plastic sheet and a front surface pattern layer is provided on the other surface, and a large number of through holes are perforated. Besides, a decorative sheet in which a back pattern layer, a masking ink layer, and a front pattern layer are sequentially registered and printed so that a large number of small transparent portions remain on a transparent plastic sheet can also be used.
【0013】透明な、または不透明なプラスチックシー
トには、アクリル樹脂シート、ポリカーボネートシー
ト、ポリ塩化ビニルシートなど任意の材料を使用すれば
よい。For the transparent or opaque plastic sheet, any material such as an acrylic resin sheet, a polycarbonate sheet or a polyvinyl chloride sheet may be used.
【0014】印刷は常用の印刷インキを使用して、グラ
ビア法をはじめとする既知の印刷法や転写法によって形
成できる。 表面絵柄層および裏面絵柄層は、単色刷り
に限らず多色刷りで設けてもよいし、パターンを同じに
しても異にしてもよいことはもちろんである。 たとえ
ば、一方を明るい色のインキを使用した絵柄とし、他方
を暗い色のインキを使用した絵柄とすると、暗色の絵柄
層側からは反対側がよく見えるが、明色の絵柄層側から
は反対側が見えにくい化粧パネルが得られる。この効果
は、化粧シートの両面に透明なプラスチックの基材を貼
り合わせ、その一方を他方より暗色にたとえばスモーク
にすることによっても得られる。Printing can be performed by using a commonly used printing ink by a known printing method such as a gravure method or a transfer method. The front design layer and the back design layer are not limited to single-color printing, but may be multi-color printing, or the patterns may be the same or different. For example, if one is a pattern that uses a light-colored ink and the other is a pattern that uses a dark-colored ink, the opposite side is often visible from the dark-colored pattern layer side, but the opposite side from the light-colored pattern layer side. A cosmetic panel that is hard to see can be obtained. This effect can also be obtained by laminating transparent plastic substrates on both sides of the decorative sheet and making one of them darker than the other, for example, smoked.
【0015】透孔の形状や分布は任意である。 小径の
ものを多数にする方が、絵柄を損わず、かつ透視しやす
い点で好ましいことは従来と同様で、採光量の多いもの
や透視しやすいものを求めるならば開口率を高く、絵柄
による表示を重視するのであれば低くすべきこともまた
同様である。 透孔に相当する透明部分を形成する場合
は、それらが独立でなく連続したパターンであってもよ
い。The shape and distribution of the through holes are arbitrary. It is similar to the conventional method that a large number of small-diameter ones are preferable because they do not damage the pattern and are easy to see through. The same applies to the case where the importance is attached to the display by. When forming a transparent portion corresponding to a through hole, they may be a continuous pattern rather than an independent pattern.
【0016】上記した化粧パネルを得る本発明の製造方
法は、両面に異なる絵柄を有するシートに多数の透孔を
設けるか、またはそれに相当する透明部分を設けて透視
可能とした化粧シートの一方または両方の面に、透明な
プラスチックの基材を重ね、その平面方向に張力が加わ
らない条件下に加熱加圧してそれらを熱ラミネートする
ことからなる。 このとき必要に応じ、基材および(ま
たは)プラスチックシートに、感熱接着剤を適用する。
感熱接着剤は、セルロース誘導体、アクリル樹脂、ビ
ニル重合体、ロジンエステル樹脂、ゴム系樹脂、各種ア
イオノマーなどから適宜にえらんで使用する。According to the manufacturing method of the present invention for obtaining the above-mentioned decorative panel, one of the decorative sheets which is made transparent by providing a large number of through holes in a sheet having different patterns on both sides or providing transparent portions corresponding thereto It consists of laminating transparent plastic substrates on both sides and heat laminating them under heat and pressure under conditions where no tension is applied in the plane direction. At this time, if necessary, a heat-sensitive adhesive is applied to the substrate and / or the plastic sheet.
The heat-sensitive adhesive is appropriately selected from cellulose derivatives, acrylic resins, vinyl polymers, rosin ester resins, rubber resins, various ionomers, and the like.
【0017】熱ラミネートは、たとえば図4に示すよう
に、化粧シートおよび基材(4)を、背後に加熱ブロッ
ク(7A,7B)をそなえた2枚の金属製の無端ベルト
(6A,6B)の間に挟んで移動する間に行なうことが
できる。 (8A,8B)は、加圧力を確保するための
バックアップロールである。 金属製無端ベルトとして
は、厚さ0.8〜1.2mmのステンレスの無端ベルトが
好適である。Thermal lamination is, for example, as shown in FIG. 4, two metallic endless belts (6A, 6B) having a decorative sheet and a base material (4), and heating blocks (7A, 7B) behind them. It can be done while moving between the two. (8A, 8B) are backup rolls for ensuring the pressure. As the metal endless belt, a stainless endless belt having a thickness of 0.8 to 1.2 mm is suitable.
【0018】別法としては、図5に示すように、内部に
加熱手段をそなえた大径のドラム(5)およびこれと接
して回転する金属製無端ベルト(6)の間に挟んで移動
させる間に行なってもよい。 無端ベルト表面を鏡面に
しておくか、ツヤ消しなどの凹凸面にしておくことによ
り、熱ラミネートと同時に、表面に所望の光沢または凹
凸形状を与えることができる。As another method, as shown in FIG. 5, a drum (5) having a large diameter having a heating means inside and a metal endless belt (6) rotating in contact with the drum are moved by being sandwiched between them. You may do it in between. By making the surface of the endless belt a mirror surface or an uneven surface such as matte surface, a desired gloss or uneven shape can be given to the surface simultaneously with the thermal lamination.
【0019】[0019]
【作用】化粧シートと基材の熱ラミネートを平面方向に
張力を与えずに行なうことにより、ラミネートの際の熱
による伸びが防止され、寸法が安定した状態で積層が行
なわれる。 従って、絵柄が崩れるおそれがない。By performing thermal lamination of the decorative sheet and the base material without applying tension in the plane direction, elongation due to heat during lamination is prevented, and lamination is performed in a dimensionally stable state. Therefore, there is no possibility that the design will collapse.
【0020】[0020]
【実施例】厚さ100μmの透明な半硬質ポリ塩化ビニ
ルシート上に、アクリル樹脂および塩ビ/酢ビ共重合体
をバインダーとする3色のインキで絵柄を印刷し、その
上に3色インキと同じバインダーの白色の隠蔽性インキ
でベタ印刷をし、さらにその上に、上記の絵柄とは異な
る絵柄を3色のインキで印刷した。 それにパンチプレ
スで、直径1mmの透孔を多数(開口率40%)あけて、
化粧シートとした。EXAMPLE A pattern is printed on a transparent semi-rigid polyvinyl chloride sheet having a thickness of 100 μm with three colors of ink using an acrylic resin and a vinyl chloride / vinyl acetate copolymer as a binder, and a three color ink is formed on the pattern. Solid printing was performed with a white hiding ink of the same binder, and a pattern different from the above pattern was printed with three colors of ink on it. Then, using a punch press, open a large number of through holes with a diameter of 1 mm (aperture ratio 40%),
It was a decorative sheet.
【0021】図4に示したように、厚さ200μmの透
明なアクリル樹脂シートの基材を上記の化粧シートの両
面に重ね、これを上下2枚の厚さ1mmのステンレス製の
無端ベルトの間に挟み、温度155℃、圧力3kg/c
m2、通過時間5分間の条件で熱ラミネートして、本発明
の化粧パネルを得た。As shown in FIG. 4, a transparent acrylic resin sheet substrate having a thickness of 200 μm is laminated on both sides of the above decorative sheet, and this is placed between two upper and lower endless belts made of stainless steel having a thickness of 1 mm. Sandwiched between them, temperature 155 ℃, pressure 3kg / c
Thermal lamination was performed under the conditions of m 2 and passage time of 5 minutes to obtain a decorative panel of the present invention.
【0022】[0022]
【発明の効果】本発明の化粧パネルは、軽量で可撓性が
あるから、そのまま曲面ガラスに貼りつけたり、ロール
ブラインドにしたり、縁をつけて室内の間仕切りにした
り、さまざまな使い方ができる。Since the decorative panel of the present invention is lightweight and flexible, it can be used in various ways such as being stuck on curved glass as it is, forming a roller blind, or attaching an edge to partition a room.
【0023】この化粧パネルを本発明の方法で製造すれ
ば、インラインで効率よく製造でき、その製品は絵柄に
歪みのない美麗なものとなる。If this decorative panel is manufactured by the method of the present invention, it can be efficiently manufactured in-line, and the product has a beautiful design with no distortion.
【図1】 本発明の化粧パネルの一例を表側からみた平
面図。FIG. 1 is a plan view of an example of the decorative panel of the present invention viewed from the front side.
【図2】 図1の化粧パネルを裏側からみた平面図。FIG. 2 is a plan view of the decorative panel of FIG. 1 seen from the back side.
【図3】 図1のI−I方向、かつ図2のII−II方向の
模式的な断面図。3 is a schematic cross-sectional view taken along line II of FIG. 1 and taken along line II-II of FIG.
【図4】 本発明の化粧パネルの製造方法の具体例を説
明するための、概念的な側面図。FIG. 4 is a conceptual side view for explaining a specific example of the method for manufacturing a decorative panel of the present invention.
【図5】 本発明の化粧パネルの製造方法の別な具体例
を説明するための、概念的な側面図。FIG. 5 is a conceptual side view for explaining another specific example of the method for manufacturing a decorative panel of the present invention.
1 プラスチックシート 2 印刷層 21 表面絵柄層 22 隠蔽インキ層 23 裏面絵柄層 3 透孔 4 基材 5 大径のドラム 6,6A,6B 金属製無端ベルト 7A,7B 加熱ブロック 8A,8B バックアップロール 1 Plastic Sheet 2 Printing Layer 21 Surface Design Layer 22 Concealing Ink Layer 23 Backside Design Layer 3 Through Hole 4 Base Material 5 Large Diameter Drum 6,6A, 6B Metal Endless Belt 7A, 7B Heating Block 8A, 8B Backup Roll
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 B41N 1/12 7124−2H B44F 1/06 9134−3K ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B41N 1/12 7124-2H B44F 1/06 9134-3K
Claims (7)
の透孔を設けるか、またはそれに相当する透明部分を設
けて透視可能とした化粧シートの一方または両方の面
に、透明なプラスチックの基材を貼り合わせてなる化粧
パネル。1. A transparent plastic base material on one or both surfaces of a decorative sheet which has a plurality of through holes in a sheet having different patterns on both sides or a transparent portion corresponding to the through holes, which is transparent. A makeup panel made by pasting together.
ト上に、裏面絵柄層、隠蔽インキ層および表面絵柄層を
順に設けるか、または不透明なプラスチックシートの一
方の面に裏面絵柄層を、他方の面に表面絵柄層をそれぞ
れ設けて、多数の透孔を穿孔したものである請求項1の
化粧パネル。2. The decorative sheet comprises a transparent plastic sheet on which a back-side picture layer, a masking ink layer and a front-side picture layer are sequentially provided, or one surface of an opaque plastic sheet is provided with a back-side picture layer and the other surface. The decorative panel according to claim 1, wherein a surface pattern layer is provided on each of the surfaces and a large number of through holes are perforated.
ト上に、多数の小さな透明部分が残るように、裏面絵柄
層、隠蔽インキ層および表面絵柄層を順に見当あわせ印
刷したものである請求項1の化粧パネル。3. The decorative sheet is a transparent plastic sheet on which a back pattern layer, a masking ink layer and a front pattern layer are registered and printed in order so that a large number of small transparent portions remain. Makeup panel.
の基材を貼り合わせ、その一方を他方より暗色にした請
求項1の化粧パネル。4. The decorative panel according to claim 1, wherein transparent plastic substrates are attached to both sides of the decorative sheet, and one of them is darker than the other.
の透孔を設けるか、またはそれに相当する透明部分を設
けて透視可能とした化粧シートの一方または両方の面
に、透明なプラスチックの基材を重ね、その平面方向に
張力が加わらない条件下に加熱加圧してそれらを熱ラミ
ネートすることからなる化粧パネルの製造方法。5. A transparent plastic base material on one or both surfaces of a decorative sheet which is made transparent by providing a large number of through holes in a sheet having different patterns on both sides or providing transparent portions corresponding thereto. And a method of manufacturing a decorative panel, which comprises heating and pressurizing them under the condition that no tension is applied in the plane direction and heat-laminating them.
えた2枚の金属製無端ベルトの間に挟んで移動させる間
に行なう請求項5の製造方法。6. The manufacturing method according to claim 5, wherein the heating and pressing are performed while being sandwiched between two metal endless belts having a heating block behind them and moved.
大径のドラム、およびこれと接して回転する金属製無端
ベルトの間に挟んで移動させる間に行なう請求項5の製
造方法。7. The manufacturing method according to claim 5, wherein the heating and pressing are performed while being sandwiched between a large-diameter drum having a heating means inside and a metal endless belt rotating in contact with the drum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14888691A JPH0557863A (en) | 1991-06-20 | 1991-06-20 | Decorative panel and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14888691A JPH0557863A (en) | 1991-06-20 | 1991-06-20 | Decorative panel and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0557863A true JPH0557863A (en) | 1993-03-09 |
Family
ID=15462906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14888691A Pending JPH0557863A (en) | 1991-06-20 | 1991-06-20 | Decorative panel and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0557863A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0830196A (en) * | 1994-07-15 | 1996-02-02 | Dainippon Printing Co Ltd | See-through sticker and its production |
FR2727059A1 (en) * | 1994-11-17 | 1996-05-24 | Berouard Arzelie | Detachable decorative panel for interior use |
GB2308829A (en) * | 1996-01-02 | 1997-07-09 | S D Co Ltd | Decorating see-through materials |
US5728130A (en) * | 1996-03-22 | 1998-03-17 | Olympus Optical Co., Ltd. | Ultrasonic trocar system |
EP1249354A1 (en) | 1996-06-14 | 2002-10-16 | Minnesota Mining And Manufacturing Company | Display unit and methods of displaying an image |
EP1698452A1 (en) * | 2005-03-03 | 2006-09-06 | Alcan Technology & Management Ltd. | Composite panel |
US7563268B2 (en) | 2002-12-16 | 2009-07-21 | Olympus Corporation | Trocar system |
-
1991
- 1991-06-20 JP JP14888691A patent/JPH0557863A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0830196A (en) * | 1994-07-15 | 1996-02-02 | Dainippon Printing Co Ltd | See-through sticker and its production |
FR2727059A1 (en) * | 1994-11-17 | 1996-05-24 | Berouard Arzelie | Detachable decorative panel for interior use |
GB2308829A (en) * | 1996-01-02 | 1997-07-09 | S D Co Ltd | Decorating see-through materials |
US5728130A (en) * | 1996-03-22 | 1998-03-17 | Olympus Optical Co., Ltd. | Ultrasonic trocar system |
EP1249354A1 (en) | 1996-06-14 | 2002-10-16 | Minnesota Mining And Manufacturing Company | Display unit and methods of displaying an image |
US7791562B2 (en) | 1996-06-14 | 2010-09-07 | 3M Innovative Properties Company | Display unit and methods of displaying an image |
US7563268B2 (en) | 2002-12-16 | 2009-07-21 | Olympus Corporation | Trocar system |
EP1698452A1 (en) * | 2005-03-03 | 2006-09-06 | Alcan Technology & Management Ltd. | Composite panel |
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