JP6227960B2 - Resin molded product and portable terminal equipped with the same - Google Patents

Resin molded product and portable terminal equipped with the same Download PDF

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JP6227960B2
JP6227960B2 JP2013206350A JP2013206350A JP6227960B2 JP 6227960 B2 JP6227960 B2 JP 6227960B2 JP 2013206350 A JP2013206350 A JP 2013206350A JP 2013206350 A JP2013206350 A JP 2013206350A JP 6227960 B2 JP6227960 B2 JP 6227960B2
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molded product
card
resin molded
core material
terminal cover
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JP2015066946A (en
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良知 田中
良知 田中
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Sharp Corp
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Sharp Corp
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Priority to PCT/JP2014/004906 priority patent/WO2015049851A1/en
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    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3431—Telephones, Earphones
    • B29L2031/3437—Cellular phones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casings For Electric Apparatus (AREA)

Description

本発明は、芯材が成形樹脂内にインサート成形された樹脂成形品及びそれを備えた携帯端末に関するものである。   The present invention relates to a resin molded product in which a core material is insert-molded in a molded resin, and a portable terminal including the resin molded product.

従来より、剛性を向上させるためなどの理由で、芯材が成形樹脂内にインサート成形された樹脂成形品は知られている。このような樹脂成形品では、金型のキャビティ内に芯材を保持して溶融樹脂を射出するときに芯材が安定するように、押さえピンなどの押圧部材で芯材を押圧する。このため、射出成形後の樹脂成形品の表面には、芯材の先端の形状が現れて見映えが悪くなる。   Conventionally, a resin molded product in which a core material is insert-molded in a molded resin for the purpose of improving rigidity or the like is known. In such a resin molded product, the core material is pressed by a pressing member such as a pressing pin so that the core material is stabilized when the core material is held in the cavity of the mold and the molten resin is injected. For this reason, the shape of the tip of the core material appears on the surface of the resin molded product after the injection molding, and the appearance deteriorates.

そこで、例えば、特許文献１では、押さえピンの先端をできるだけ細くして見映えを良くするようにしている。   Thus, for example, in Patent Document 1, the tip of the pressing pin is made as thin as possible to improve the appearance.

実開平６−５３１１８号公報Japanese Utility Model Publication No. 6-53118

しかしながら、特許文献１のように押さえピンの先端をいくら細くしても必ず先端の形状が樹脂成形品の表面に現れてしまう。   However, the shape of the tip always appears on the surface of the resin molded product no matter how thin the tip of the pressing pin is as in Patent Document 1.

本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、押圧部材の先端の形状が表面に現れても樹脂成形品の見映えを良くすることにある。   This invention is made | formed in view of this point, The place made into the objective is to improve the appearance of a resin molded product, even if the shape of the front-end | tip of a press member appears on the surface.

上記の目的を達成するために、この発明では、押圧部材の先端の形状を模様として利用した。   In order to achieve the above object, the present invention uses the shape of the tip of the pressing member as a pattern.

具体的には、本発明では、カードを挿入可能なカードソケットを覆う端子カバーの防水部を構成し、上記防水部の表面に周囲よりも低い三角形状の凹部が形成され、該凹部が表面の模様の一部を構成しており、該凹部の頂点が上記カードの挿入方向を示す。 Specifically, in the present invention, a waterproof portion of a terminal cover that covers a card socket into which a card can be inserted is configured, and a triangular recess that is lower than the periphery is formed on the surface of the waterproof portion . A part of the pattern is formed, and the apex of the concave portion indicates the insertion direction of the card .

上記の構成によると、インサート成形時に芯材を押さえるための押圧部材の先端の形状が樹脂成形品の表面に現れても、その形状が模様の一部となっているので、見映えが悪化しない。また、カードを挿入するときに、凹部を含む模様による表示で迷うことなく挿入することができる。 According to said structure, even if the shape of the front-end | tip of the pressing member for pressing down a core material at the time of insert molding appears on the surface of a resin molded product, since the shape becomes a part of a pattern, appearance does not deteriorate . Moreover, when inserting a card, it can insert without hesitation by the display by the pattern containing a recessed part.

以上説明したように、本発明によれば、インサート成形時に芯材を押さえ付ける押圧部材によって形成された凹部を表面の模様の一部としたことにより、押圧部材の先端の形状が表面に現れても樹脂成形品の見映えを良くすることができる。   As described above, according to the present invention, the concave portion formed by the pressing member that presses the core material during insert molding is made a part of the surface pattern, so that the shape of the tip of the pressing member appears on the surface. Can also improve the appearance of the resin molded product.

本発明の実施形態に係る端子カバーを示し、（ａ）が背面から見た斜視図であり、（ｂ）が押圧部材で押圧した状態を示す斜視図である。The terminal cover which concerns on embodiment of this invention is shown, (a) is the perspective view seen from the back surface, (b) is the perspective view which shows the state pressed with the press member. 端子カバーが取り付けられた携帯電話機を示す斜視図である。It is a perspective view which shows the mobile telephone with which the terminal cover was attached. 端子カバーを取り外した状態の端子用開口及びその周辺であるIII部を拡大して示す斜視図である。It is a perspective view which expands and shows the opening for terminals of the state where the terminal cover was removed, and the III section which is the circumference. 押圧部材で押圧した状態の端子カバーを示す側面図である。It is a side view which shows the terminal cover of the state pressed with the press member. 図４のＶ−Ｖ線拡大断面図である。It is the VV line expanded sectional view of FIG. 防水部の正面図である。It is a front view of a waterproof part.

以下、本発明の実施形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１（ａ）は本発明の実施形態の樹脂成形品としての防水部１１を有する端子カバー１０を示し、この端子カバー１０は、図２に示すように、例えば携帯端末としての携帯電話機１の上端に設けた端子用開口８（切欠９）を覆っている。   FIG. 1A shows a terminal cover 10 having a waterproof part 11 as a resin molded product according to an embodiment of the present invention. This terminal cover 10 is, for example, a mobile phone 1 as a mobile terminal as shown in FIG. The terminal opening 8 (notch 9) provided at the upper end is covered.

具体的には、この携帯電話機１は、例えば表面にタッチパネルを含む表示部２が嵌め込まれた筐体３を有する。この筐体３の背面がリアカバー４で覆われている。図３に示すように、筐体３には、長円形の端子用開口８が形成され、リアカバー４にも切欠９が形成されている。端子用開口８の奥側には、例えば、ＳＤカード２０及びＵＩＭカード２１（User Identity ModuleCard）を挿入するためのカードソケット２２が内蔵されている。端子カバー１０は、このカードソケット２２を防水状に密閉する役割を果たす。   Specifically, the mobile phone 1 includes a housing 3 in which a display unit 2 including a touch panel is fitted, for example. The rear surface of the housing 3 is covered with a rear cover 4. As shown in FIG. 3, an oval terminal opening 8 is formed in the housing 3, and a notch 9 is also formed in the rear cover 4. A card socket 22 for inserting an SD card 20 and a UIM card 21 (User Identity Module Card), for example, is built in the back side of the terminal opening 8. The terminal cover 10 serves to seal the card socket 22 in a waterproof state.

図１（ａ）に示すように、端子カバー１０は、成形樹脂であるシリコーンゴム１１ａに金属製等の芯材１１ｂがインサート成形された長円形の防水部１１と、この防水部１１に一体に結合された例えばエラストマー樹脂よりなるカバー本体１２とを備えている。カバー本体１２には、適度な弾性と剛性を備えた連結部１２ａが一体に成形され、この連結部の鉤部１２ｂが端子用開口８の周縁に係合することで、端子カバー１０が抜け出さないようにしている。例えば、防水部１１とカバー本体１２とは接着材等により接着すればよい。   As shown in FIG. 1A, the terminal cover 10 includes an oval waterproof part 11 in which a core material 11b made of metal or the like is inserted into a silicone rubber 11a that is a molding resin, and the waterproof part 11 integrally. A cover main body 12 made of, for example, an elastomer resin is provided. The cover main body 12 is integrally formed with a connecting portion 12a having appropriate elasticity and rigidity, and the collar portion 12b of the connecting portion engages with the peripheral edge of the terminal opening 8, so that the terminal cover 10 does not come out. I am doing so. For example, the waterproof part 11 and the cover main body 12 may be bonded with an adhesive or the like.

次いで、防水部１１の成形方法について説明する。詳しくは図示しないが、金型に形成したキャビティ内に芯材１１ｂを載置し、その表面側は、図１（ｂ）、図４及び図５で二点鎖線で示すように、断面三角形のピン状の押圧部材５０で押圧され、芯材１１ｂの裏面側は、金型の円柱状の突起が当接する。この状態でシリコーン樹脂などの防水性の高い材料よりなる溶融樹脂を射出し、芯材１１ｂの周囲を覆う。そして、防水部１１を取り出すと、表面側には、図１（ａ）に示すような２つの３角形状の凹部１１ｃが形成される。凹部１１ｃの底面には、芯材１１ｂが現れている。なお、押圧部材５０は、金型から防水部１１を取り出すエジェクタピンを兼ねていてもよい。一方、カバー本体１２に結合される裏面側は、図６に示すように、金型の突起による円形の凹み１１ｄが複数形成されている。この凹み１１ｄは、カバー本体１２を接着したり、溶着したりする際に隠れるので、外観上現れない。なお、図１（ｂ）、図４及び図５では、わかりやすくするために端子カバー１０において押圧部材５０を二点鎖線で記載しているが、実際には、防水部１１のみを成形するときに押圧部材５０が利用される。   Next, a method for forming the waterproof part 11 will be described. Although not shown in detail, the core material 11b is placed in the cavity formed in the mold, and the surface side thereof has a triangular cross section as shown by a two-dot chain line in FIG. 1 (b), FIG. 4 and FIG. It is pressed by the pin-shaped pressing member 50, and the cylindrical projection of the mold comes into contact with the back surface side of the core material 11b. In this state, a molten resin made of a highly waterproof material such as a silicone resin is injected to cover the periphery of the core material 11b. When the waterproof part 11 is taken out, two triangular recesses 11c as shown in FIG. 1A are formed on the surface side. A core material 11b appears on the bottom surface of the recess 11c. The pressing member 50 may also serve as an ejector pin that takes out the waterproof part 11 from the mold. On the other hand, as shown in FIG. 6, a plurality of circular recesses 11 d formed by mold protrusions are formed on the back surface side coupled to the cover body 12. Since the recess 11d is hidden when the cover body 12 is bonded or welded, it does not appear in appearance. In FIG. 1B, FIG. 4 and FIG. 5, the pressing member 50 is indicated by a two-dot chain line in the terminal cover 10 for the sake of clarity, but actually, when only the waterproof part 11 is formed. The pressing member 50 is used.

防水部１１の表面に一対の凹部１１ｃが現れた状態で、本実施形態では、図１に示すように、この凹部１１ｃを模様１３の一部として利用する。すなわち、端子用開口８内に収容されたカードソケット２２に挿入される２種類のカードの形状とその挿入方向とを印刷する。この印刷の代わりに金型の表面の凹凸によって同様の模様１３を形成してもよい。   In a state where a pair of concave portions 11 c appear on the surface of the waterproof portion 11, in the present embodiment, the concave portions 11 c are used as a part of the pattern 13 as shown in FIG. 1. That is, the shape of two types of cards inserted into the card socket 22 accommodated in the terminal opening 8 and the insertion direction thereof are printed. Instead of this printing, a similar pattern 13 may be formed by unevenness on the surface of the mold.

本実施形態では、図１に示すように、例えば、模様１３として、ＳＤカード２０を示す「ＳＤ」の文字と、その上側の太線でＳＤカード２０がどちら側かを示す。そして、その横にＳＤカード２０の形状を印刷し、押圧部材５０の断面形状である三角形の頂点がその挿入方向を示す。また、模様１３として、ＵＩＭカード２１を示す「ＵＩＭ」の文字と、その下側の太線でＵＩＭカード２１がどちら側かを示す。そして、その横にＵＩＭカード２１の形状を印刷し、凹部１１ｃの頂点がその挿入方向を示す。本実施形態のようにＳＤカード２０とＵＩＭカード２１を同じ端子カバー１０に隠されたカードソケット２２に並べて装着する場合、どちらに該当するカードを挿入すればよいのか、またその挿入方向はどちらなのか、非常にわかりにくいが、本実施形態による凹部１１ｃを含む模様１３による表示で迷うことなく挿入することができる。   In the present embodiment, as shown in FIG. 1, for example, as a pattern 13, “SD” indicating the SD card 20 and a thick line on the upper side indicate which side the SD card 20 is on. Then, the shape of the SD card 20 is printed on the side, and the apex of the triangle which is the cross-sectional shape of the pressing member 50 indicates the insertion direction. In addition, as the pattern 13, “UIM” indicating the UIM card 21 and a thick line below the UIM card 21 indicate which side the UIM card 21 is on. Then, the shape of the UIM card 21 is printed on the side, and the apex of the recess 11c indicates the insertion direction. When the SD card 20 and the UIM card 21 are mounted side by side in the card socket 22 concealed in the same terminal cover 10 as in this embodiment, which card should be inserted, and which is the insertion direction? However, it is very difficult to understand, but it can be inserted without hesitation in the display by the pattern 13 including the concave portion 11c according to the present embodiment.

このように、本実施形態では、インサート成形時に芯材１１ｂを押さえ付ける押圧部材５０によって周囲よりも低い凹部１１ｃが形成され、この凹部１１ｃが表面の模様１３の一部を構成するようにした。このため、押圧部材５０の先端の形状が表面に現れても防水部１１の見映えを良くすることができる。   Thus, in this embodiment, the recessed part 11c lower than the circumference | surroundings is formed by the press member 50 which presses down the core material 11b at the time of insert molding, and this recessed part 11c comprised a part of pattern 13 of the surface. For this reason, even if the shape of the tip of the pressing member 50 appears on the surface, the appearance of the waterproof part 11 can be improved.

（その他の実施形態）
本発明は、上記実施形態について、以下のような構成としてもよい。 (Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

すなわち、上記実施形態では、樹脂成形品は、端子カバー１０の防水部１１としたがこれに限定されず、芯材をインサート成形する樹脂成形品であればどのようなものでもよい。   That is, in the said embodiment, although the resin molded product was made into the waterproof part 11 of the terminal cover 10, it is not limited to this, What kind of thing may be sufficient if it is a resin molded product which insert-molds a core material.

上記実施形態では、押圧部材５０の断面を三角形としたが、これに限定されず、円形、四角形等でもよく、その断面形状を模様１３の一部として利用すればよい。   In the above-described embodiment, the cross section of the pressing member 50 is a triangle, but is not limited thereto, and may be a circle, a square, or the like, and the cross-sectional shape may be used as a part of the pattern 13.

上記実施形態では、携帯端末は、携帯電話機１としたが、ＰＨＳ（Personal Handy-phone System ）、ＰＤＡ(Personal DigitalAssistant)、スマートフォン、パソコン、モバイルツール、電子辞書、電卓、ゲーム機等であってもよく、液晶ディスプレイ、液晶テレビ、ブルーレイ（ＤＶＤ）レコーダ等であってもよい。   In the above embodiment, the mobile terminal is the mobile phone 1, but it may be a PHS (Personal Handy-phone System), a PDA (Personal Digital Assistant), a smartphone, a personal computer, a mobile tool, an electronic dictionary, a calculator, a game machine, or the like. It may be a liquid crystal display, a liquid crystal television, a Blu-ray (DVD) recorder, or the like.

なお、以上の実施形態は、本質的に好ましい例示であって、本発明、その適用物や用途の範囲を制限することを意図するものではない。また、各実施形態に記載された技術的特徴は、互いに組合せ可能であり、組み合わせることにより、新しい技術的特徴を形成することができる。   In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use. The technical features described in each embodiment can be combined with each other, and a new technical feature can be formed by combining them.

１ 携帯電話機（携帯端末）
２ 表示部
３ 筐体
４ リアカバー
８ 端子用開口（開口）
９ 切欠（開口）
１０ 端子カバー
１１ 防水部（樹脂成形品）
１１ａ シリコーンゴム（成形樹脂）
１１ｂ 芯材
１１ｃ 凹部
１１ｄ 凹み
１２ カバー本体
１２ａ 連結部
１２ｂ 鉤部
１３ 模様
２０ ＳＤカード
２１ ＵＩＭカード
２２ カードソケット
５０ 押圧部材 1 Mobile phone (mobile terminal)
2 display section
3 Case
4 Rear cover
8 Terminal opening (opening)
9 Notch (opening)
10 Terminal cover
11 Waterproof part (resin molded product)
11a Silicone rubber (molding resin)
11b Core material
11c recess
11d dent
12 Cover body
12a Connecting part
12b Isobe
13 patterns
20 SD card
21 UIM card
22 Card socket
50 Pressing member

Claims (3)

芯材が成形樹脂内にインサート成形された樹脂成形品において、
カードを挿入可能なカードソケットを覆う端子カバーの防水部を構成し、
上記防水部の表面に周囲よりも低い三角形状の凹部が形成され、該凹部が表面の模様の一部を構成しており、該凹部の頂点が上記カードの挿入方向を示す
ことを特徴とする樹脂成形品。 In the resin molded product in which the core material is insert-molded in the molded resin,
Configure the waterproof part of the terminal cover that covers the card socket into which the card can be inserted,
A triangular concave portion lower than the surrounding is formed on the surface of the waterproof portion, and the concave portion constitutes a part of the pattern on the surface, and the vertex of the concave portion indicates the insertion direction of the card. A resin molded product characterized by 芯材が成形樹脂内にインサート成形された樹脂成形品において、
インサート成形時に上記芯材を押さえ付ける押圧部材によって周囲よりも低い凹部が形成され、該凹部が表面の模様の一部を構成しており、
カードを挿入可能なカードソケットを覆う端子カバーの防水部を構成し、
上記押圧部材の断面が三角形状であり、
上記防水部の表面に現れた上記凹部の頂点が上記カードの挿入方向を示す
ことを特徴とする樹脂成形品。 In the resin molded product in which the core material is insert-molded in the molded resin,
A recess that is lower than the surroundings is formed by the pressing member that presses down the core material during insert molding, and the recess constitutes a part of the pattern on the surface,
Configure the waterproof part of the terminal cover that covers the card socket into which the card can be inserted,
The pressing member has a triangular cross section,
A resin molded product, wherein a vertex of the recess appearing on a surface of the waterproof part indicates an insertion direction of the card. 請求項１又は２に記載の樹脂成形品を備えた携帯端末において、
上記防水部は、端子カバー本体と結合されて上記端子カバーを構成し、筐体に形成した端子露出用の開口が該端子カバーで覆われている
ことを特徴とする携帯端末。 In the portable terminal provided with the resin molded product according to claim 1 or 2 ,
The waterproof part is combined with a terminal cover body to constitute the terminal cover, and a terminal exposure opening formed in the housing is covered with the terminal cover.
JP2013206350A 2013-10-01 2013-10-01 Resin molded product and portable terminal equipped with the same Active JP6227960B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013206350A JP6227960B2 (en) 2013-10-01 2013-10-01 Resin molded product and portable terminal equipped with the same
PCT/JP2014/004906 WO2015049851A1 (en) 2013-10-01 2014-09-25 Resin molding and portable terminal provided with same
TW103134273A TWI522222B (en) 2013-10-01 2014-10-01 A resin molded article, and a portable terminal device provided with the resin molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013206350A JP6227960B2 (en) 2013-10-01 2013-10-01 Resin molded product and portable terminal equipped with the same

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JP6227960B2 true JP6227960B2 (en) 2017-11-08

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Publication number Priority date Publication date Assignee Title
JPS5415065U (en) * 1977-07-04 1979-01-31
JP2590974Y2 (en) * 1993-01-05 1999-02-24 日産ディーゼル工業株式会社 Holding pin for insert core material when molding resin products
JPH08207978A (en) * 1995-02-02 1996-08-13 Mitsubishi Materials Corp Disc-holding case and its mold construction
JP3973782B2 (en) * 1998-11-12 2007-09-12 富士フイルム株式会社 Cassette storage case
JP2010208045A (en) * 2009-03-06 2010-09-24 Nec Saitama Ltd Portable terminal device, molding method, and molding die
JP5334749B2 (en) * 2009-08-25 2013-11-06 信越ポリマー株式会社 Insert molding method and precursor for seal structure

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WO2015049851A1 (en) 2015-04-09
JP2015066946A (en) 2015-04-13
TWI522222B (en) 2016-02-21

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