JP5680471B2 - Sealing method for high pressure gas container base - Google Patents

Sealing method for high pressure gas container base Download PDF

Info

Publication number
JP5680471B2
JP5680471B2 JP2011091592A JP2011091592A JP5680471B2 JP 5680471 B2 JP5680471 B2 JP 5680471B2 JP 2011091592 A JP2011091592 A JP 2011091592A JP 2011091592 A JP2011091592 A JP 2011091592A JP 5680471 B2 JP5680471 B2 JP 5680471B2
Authority
JP
Japan
Prior art keywords
pressure gas
base
gas container
masking material
container body
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.)
Active
Application number
JP2011091592A
Other languages
Japanese (ja)
Other versions
JP2012225373A (en
Inventor
小川　正則
正則 小川
藤井　慎
慎 藤井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagoya Oil Chemical Co Ltd
Original Assignee
Nagoya Oil Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nagoya Oil Chemical Co Ltd filed Critical Nagoya Oil Chemical Co Ltd
Priority to JP2011091592A priority Critical patent/JP5680471B2/en
Publication of JP2012225373A publication Critical patent/JP2012225373A/en
Application granted granted Critical
Publication of JP5680471B2 publication Critical patent/JP5680471B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

本発明は、例えば高圧水素ガス、高圧窒素ガス等が充填される高圧ガス容器において、口金の周辺をシーリング材によってシールする方法に関するものである。   The present invention relates to a method of sealing the periphery of a base with a sealing material in a high-pressure gas container filled with, for example, high-pressure hydrogen gas, high-pressure nitrogen gas, or the like.

従来、上記高圧ガス容器の容器本体は、軽量化等の観点から合成樹脂製のものが多くなっており、該容器本体の端部には容器内の高圧ガスを取り出すための開口部が設けられ、さらに該開口部には補強のために金属製の口金が取り付けられた構成となっている。そして高圧ガスの漏洩を防止するという観点から、上記容器本体と上記口金との間にシーリング材を塗布することで、上記容器本体の開口部と上記口金との隙間を塞いでいる（特許文献１，２）。   Conventionally, the container body of the high-pressure gas container has been made of many synthetic resins from the viewpoint of weight reduction and the like, and an opening for taking out the high-pressure gas in the container is provided at the end of the container body. Further, a metal base is attached to the opening for reinforcement. From the viewpoint of preventing leakage of high-pressure gas, a sealing material is applied between the container body and the base, thereby closing a gap between the opening of the container body and the base (Patent Document 1). , 2).

特開２００９−０５８１１１号公報JP 2009-058111 A 特開２００７−０１０００４号公報JP 2007-010004 A

ところが、上記容器本体と上記口金との間にシーリング材を塗布する際、シーリング材の塗布層の輪郭が明瞭になりにくく、外観上の問題となっていた。   However, when a sealing material is applied between the container body and the base, the outline of the coating layer of the sealing material is difficult to be clarified, which is a problem in appearance.

本発明は上記従来の問題点を解決するための手段として、合成樹脂製の高圧ガス容器本体の端部の開口部に口金が取り付けられている高圧ガス容器において、上記口金の外周縁よりも内側で上記口金の表面と、上記口金の外周縁よりも外側で上記高圧ガス容器本体の表面とを、合成樹脂成形品である内側マスキング材と、外側マスキング材とによって被覆し、上記内側マスキング材と上記外側マスキング材との間の間隙にシーリング材を塗布することによって上記口金の外周縁と上記高圧ガス容器本体との間をシールし、その後、上記内側マスキング材と、上記外側マスキング材と、を取り外すことを特徴とする高圧ガス容器の口金のシール方法を提供するものである。   As a means for solving the above-mentioned conventional problems, the present invention provides a high-pressure gas container in which a base is attached to an opening at an end of a synthetic resin high-pressure gas container body. The surface of the base and the surface of the high-pressure gas container body outside the outer periphery of the base are covered with an inner masking material that is a synthetic resin molded product and an outer masking material, and the inner masking material and Sealing between the outer peripheral edge of the base and the high-pressure gas container body by applying a sealing material in the gap between the outer masking material, and then the inner masking material and the outer masking material. The present invention provides a method for sealing a base of a high-pressure gas container characterized by being removed.

〔作用および効果〕
高圧ガス容器本体１の端部の開口部２に取り付けた口金３において、上記口金３の外周縁よりも内側で該口金３の表面と、上記口金３の外周縁よりも外側で上記高圧ガス容器本体１の表面とに、内側マスキング材４と外側マスキング材５とを取り付ける。上記内側および外側マスキング材４，５は、合成樹脂シートを、例えば真空および／または圧空成形、プレス成形、射出成形等によって簡単に製造される。
上記口金３の外周縁よりも内側および外側に、内側マスキング材４および外側マスキング材５を取り付けたら、内側マスキング材４および外側マスキング材５の間の間隙６にシーリング材７を塗布する。上記シーリング材７は、上記内側および外側マスキング材４，５によって被覆されている上記口金３の、開口部２の周縁となる内側周縁部や、上記口金３の外周縁から大きく外れた上記高圧ガス容器本体１の表面等には塗布されない。
上記シーリング材７を塗布した後は、上記内側および外側マスキング材４，５を取り外す。そうすると、上記シーリング材７の塗布層７Ａの内外輪郭は、内側および外側マスキング材４，５によって見切られることで明確になる。
したがって本発明にあっては、口金３の周りの上記シーリング材７の塗布層７Ａの輪郭が明瞭となり、好ましい外観となる。 [Action and effect]
In the base 3 attached to the opening 2 at the end of the high-pressure gas container body 1, the high-pressure gas container is located on the inner side of the outer periphery of the base 3 and on the surface of the base 3 and on the outer side of the outer periphery of the base 3. An inner masking material 4 and an outer masking material 5 are attached to the surface of the main body 1. The inner and outer masking materials 4 and 5 are simply manufactured from a synthetic resin sheet by, for example, vacuum and / or pressure molding, press molding, injection molding, or the like.
When the inner masking material 4 and the outer masking material 5 are attached to the inner side and the outer side of the outer peripheral edge of the base 3, the sealing material 7 is applied to the gap 6 between the inner masking material 4 and the outer masking material 5. The sealing material 7 includes the high-pressure gas greatly deviated from the inner peripheral edge serving as the peripheral edge of the opening 2 and the outer peripheral edge of the base 3 of the base 3 covered with the inner and outer masking materials 4 and 5. It is not applied to the surface of the container body 1 or the like.
After applying the sealing material 7, the inner and outer masking materials 4, 5 are removed. Then, the inner and outer contours of the coating layer 7A of the sealing material 7 are clarified by being cut off by the inner and outer masking materials 4 and 5.
Therefore, in the present invention, the outline of the coating layer 7A of the sealing material 7 around the base 3 becomes clear and a preferable appearance is obtained.

高圧ガス容器本体の斜視図。The perspective view of a high pressure gas container main body. 内外マスキング材の斜視図。The perspective view of the inside and outside masking material. 内外マスキング材を装着した状態の高圧ガス容器本体の斜視図。The perspective view of the high-pressure gas container main body with the inner and outer masking materials attached. シーリング材塗布状態斜視図。The sealing material application state perspective view. 内外マスキング材を取り外した完成品の斜視図。The perspective view of the finished product which removed the inner and outer masking material. （ａ），（ｂ）は塗布層を示す断面図。(A), (b) is sectional drawing which shows an application layer.

本発明の一実施例を図１〜図６に示す。
図１には、高圧ガス容器本体１が示されている。上記高圧ガス容器本体１の端部に設けられた開口部２には、口金３が取り付けられている。
上記高圧ガス容器本体１は、例えばポリプロピレン、ポリエステル、ポリアミド、ポリ塩化ビニル等の熱可塑性樹脂を材料とし、上記口金３は、例えばアルミニウム、ステンレススチール等の金属を材料とする。 One embodiment of the present invention is shown in FIGS.
FIG. 1 shows a high-pressure gas container body 1. A base 3 is attached to the opening 2 provided at the end of the high-pressure gas container body 1.
The high-pressure gas container body 1 is made of a thermoplastic resin such as polypropylene, polyester, polyamide, or polyvinyl chloride, for example, and the base 3 is made of a metal such as aluminum or stainless steel, for example.

図２に示すのは、内側マスキング材４および外側マスキング材５である。上記内側マスキング材４および上記外側マスキング材５は、例えばポリプロピレン、ポリエステル、ポリアミド、ポリフェニレンオキサイド等の熱可塑性樹脂を材料とし、真空および／または圧空成形、プレス成形、射出成形等の公知の成形方法によって、上記口金３や、該口金３が取り付けられる周縁の上記高圧ガス容器本体１の端部の形状に適合する形状に成形されている。具体的に、内側マスキング材４は、上記開口部２を中心とした上記口金３の表面形状に合わせて略漏斗状に形成され、外側マスキング材５は、上記高圧ガス容器本体１の端部の表面形状に合わせて円環筒状に形成されている。   FIG. 2 shows an inner masking material 4 and an outer masking material 5. The inner masking material 4 and the outer masking material 5 are made of, for example, a thermoplastic resin such as polypropylene, polyester, polyamide, polyphenylene oxide, and the like by a known molding method such as vacuum and / or pressure molding, press molding, injection molding, and the like. The base 3 and the shape of the end of the high-pressure gas container main body 1 at the periphery to which the base 3 is attached are formed. Specifically, the inner masking material 4 is formed in a substantially funnel shape in accordance with the surface shape of the base 3 around the opening 2, and the outer masking material 5 is formed at the end of the high-pressure gas container body 1. It is formed in an annular cylindrical shape according to the surface shape.

上記内側および外側マスキング材４，５は、図３に示すように、上記口金３の外周縁よりも内側（開口部２側であって高圧ガス容器本体１の端部側）と、外側（高圧ガス容器本体１の中間部側）と、にそれぞれ取り付けられる。上記内側および外側マスキング材４，５は、例えば両面粘着テープ、クリップ、タッカー等によって、上記口金３および上記高圧ガス容器本体１に固定される。
そして、上記高圧ガス容器本体１に内側および外側マスキング材４，５が固定された状態で、上記内側マスキング材４と上記外側マスキング材５の間には間隙６が形成されることになる。上記間隙６には、上記口金３の外周縁を境界として、上記口金３の外周部分と、上記高圧ガス容器本体１の端部表面が臨出している。
なお上記口金３の外周縁は、本実施例では全体で歯車状をなしており、このような形状の外周部分にシーリング材を塗布しようとすると、口金３の外周部分から大きく外れてはみ出したり、塗布が途切れたりして、シーリング材による塗布層の内外周が不明瞭となりやすい。また歯車状の外周縁によって、上記口金３の外周縁表面と、高圧ガス容器本体１の表面との間には、複雑に入り組んだ形状の段差が形成されるので、塗布層の内外周が不明瞭となるばかりか、該塗布層の厚みも不均一になりやすい。 As shown in FIG. 3, the inner and outer masking materials 4, 5 are located on the inner side (on the opening 2 side and the end side of the high-pressure gas container body 1) and on the outer side (high pressure). And an intermediate portion side) of the gas container body 1. The inner and outer masking materials 4 and 5 are fixed to the base 3 and the high-pressure gas container body 1 by, for example, a double-sided adhesive tape, a clip, a tucker or the like.
A gap 6 is formed between the inner masking material 4 and the outer masking material 5 in a state where the inner and outer masking materials 4 and 5 are fixed to the high-pressure gas container body 1. In the gap 6, the outer peripheral portion of the base 3 and the end surface of the high-pressure gas container main body 1 protrude from the outer peripheral edge of the base 3 as a boundary.
In addition, the outer peripheral edge of the base 3 has a gear shape as a whole in this embodiment, and when a sealing material is applied to the outer peripheral part of such a shape, the outer peripheral part of the base 3 protrudes greatly from the outer peripheral part. The coating is interrupted and the inner and outer circumferences of the coating layer made of the sealing material tend to be unclear. Further, since the gear-shaped outer peripheral edge forms a complicated step between the outer peripheral surface of the base 3 and the surface of the high-pressure gas container main body 1, the inner and outer periphery of the coating layer is not satisfactory. Not only becomes clear, the thickness of the coating layer tends to be non-uniform.

図４に示すように、上記内側マスキング材４と上記外側マスキング材５の間の間隙６には、シーリング材７が塗布される。上記シーリング材７としては、ウレタン系、ポリサルファイド系、シリコン系等の通常のシーリング材が使用される。
上記シーリング材７を塗布した後、必要とあれば上記シーリング材７を加熱乾燥あるいは硬化せしめた後、上記内側マスキング材４および上記外側マスキング材５を取り外せば、図５に示すように、上記口金３の表面で外周部分から、上記口金３の外周縁の直近の高圧ガス容器本体１の表面部分にかけて、シーリング材７の塗布層７Ａが形成される。 As shown in FIG. 4, a sealing material 7 is applied to the gap 6 between the inner masking material 4 and the outer masking material 5. As the sealing material 7, a normal sealing material such as urethane, polysulfide, or silicon is used.
After the sealing material 7 is applied, if necessary, the sealing material 7 is heated and dried or cured, and then the inner masking material 4 and the outer masking material 5 are removed. As shown in FIG. A coating layer 7 </ b> A of the sealing material 7 is formed from the outer peripheral portion on the surface of 3 to the surface portion of the high-pressure gas container main body 1 closest to the outer peripheral edge of the base 3.

上記シーリング材７の塗布層７Ａの内外周は、上記内側および外側マスキング材４，５によって見切られているから（図６（ａ），（ｂ）参照）、輪郭が明瞭であり、外観上好ましいものである。
また本発明のシーリング方法にあっては、上記高圧ガス容器本体１の外面上において、上記口金３の厚みを考慮したうえで、上記内側マスキング材４の厚みと、上記外側マスキング材５の厚みとを調整することで、上記塗布層７Ａの厚みを略均一にすることも可能である。
図６（ａ）に示すように、上記外側マスキング材５の厚みを上記内側マスキング材４の厚みよりも厚くすることで、上記塗布層７Ａの両側において、上記口金３の厚みを含めた上記塗布層７Ａの厚みｈ１と、上記高圧ガス容器本体１の外面からの上記塗布層７Ａの厚みｈ２と、が等しくなり、上記塗布層７Ａの厚みが略均一になる。
図６（ｂ）に示すように、上記外側マスキング材５の厚みを上記内側マスキング材４の厚みと等しくすることで、上記塗布層７Ａの両側において、上記塗布層７Ａの厚みｈ１と、上記塗布層７Ａの厚みｈ２と、が等しくなり、上記塗布層７Ａの厚みが略均一になる。
上記のように上記外側マスキング材５の厚みを上記内側マスキング材４の厚みよりも厚くした場合と、上記外側マスキング材５の厚みを上記内側マスキング材４の厚みと等しくした場合と、の何れの場合においても、該シーリング材７を塗布する厚みは、上記内側マスキング材４および上記外側マスキング材５の厚さを基準とする、つまりは該内側マスキング材４および該外側マスキング材５の表面に該シーリング材７が若干はみ出す程度とすればよく、該シーリング材７の塗布作業を簡易化することができるとともに、塗布層７Ａの厚みのばらつきを抑え、製品品質の均質化を図ることができる。 Since the inner and outer peripheries of the coating layer 7A of the sealing material 7 are cut off by the inner and outer masking materials 4 and 5 (see FIGS. 6A and 6B), the outline is clear and the appearance is preferable. Is.
In the sealing method of the present invention, the thickness of the inner masking material 4 and the thickness of the outer masking material 5 are determined on the outer surface of the high-pressure gas container body 1 in consideration of the thickness of the base 3. By adjusting the thickness, the thickness of the coating layer 7A can be made substantially uniform.
As shown in FIG. 6 (a), the thickness of the outer masking material 5 is made larger than the thickness of the inner masking material 4, whereby the coating including the thickness of the die 3 is formed on both sides of the coating layer 7A. The thickness h1 of the layer 7A and the thickness h2 of the coating layer 7A from the outer surface of the high-pressure gas container body 1 are equal, and the thickness of the coating layer 7A becomes substantially uniform.
As shown in FIG. 6B, by making the thickness of the outer masking material 5 equal to the thickness of the inner masking material 4, the thickness h1 of the coating layer 7A and the coating on both sides of the coating layer 7A. The thickness h2 of the layer 7A becomes equal, and the thickness of the coating layer 7A becomes substantially uniform.
As described above, either the case where the thickness of the outer masking material 5 is thicker than the thickness of the inner masking material 4 or the case where the thickness of the outer masking material 5 is equal to the thickness of the inner masking material 4. Even in this case, the thickness for applying the sealing material 7 is based on the thicknesses of the inner masking material 4 and the outer masking material 5, that is, on the surfaces of the inner masking material 4 and the outer masking material 5. It is sufficient that the sealing material 7 protrudes slightly, so that the coating operation of the sealing material 7 can be simplified, and variation in the thickness of the coating layer 7A can be suppressed to achieve uniform product quality.

本発明の実施例は、高圧ガス容器本体の一端のみに開口部を有するものについて例示したが、本発明にあっては、容器本体の両端に開口部を有するものであってもよい。   Although the embodiment of the present invention has been illustrated with respect to one having an opening at only one end of the high-pressure gas container body, in the present invention, the container body may have openings at both ends.

本発明の高圧ガス容器の口金のシール方法によれば、シーリング材の塗布層の内外周は輪郭が明瞭であり、外観上好ましいものであるから、産業上利用可能である。   According to the method for sealing a base of a high-pressure gas container of the present invention, the inner and outer circumferences of the coating layer of the sealing material have a clear outline and are preferable in appearance, and thus can be used industrially.

１ 高圧ガス容器本体
２ 開口部
３ 口金
４ 内側マスキング材
５ 外側マスキング材
６ 間隙
７ シーリング材
７Ａ 塗布層

DESCRIPTION OF SYMBOLS 1 High pressure gas container body 2 Opening part 3 Base 4 Inner masking material 5 Outer masking material 6 Gap 7 Sealing material 7A Coating layer

Claims (1)

合成樹脂製の高圧ガス容器本体の端部の開口部に口金が取り付けられている高圧ガス容器において、
上記口金の外周縁よりも内側で上記口金の表面と、上記口金の外周縁よりも外側で上記高圧ガス容器本体の表面とを、合成樹脂成形品である内側マスキング材と、外側マスキング材とによって被覆し、
上記内側マスキング材と上記外側マスキング材との間の間隙にシーリング材を塗布することによって上記口金の外周縁と上記高圧ガス容器本体との間をシールし、
その後、上記内側マスキング材と、上記外側マスキング材とを取り外す
ことを特徴とする高圧ガス容器の口金のシール方法。

In the high pressure gas container in which the base is attached to the opening at the end of the synthetic resin high pressure gas container body,
The inner surface of the base inside the outer peripheral edge of the base and the surface of the high-pressure gas container body outside the outer peripheral edge of the base are formed by an inner masking material and an outer masking material which are synthetic resin molded products. Coat,
By sealing a gap between the inner masking material and the outer masking material to seal between the outer periphery of the base and the high-pressure gas container body,
Then, the inner masking material and the outer masking material are removed, and the method for sealing the base of the high pressure gas container is provided.

JP2011091592A 2011-04-15 2011-04-15 Sealing method for high pressure gas container base Active JP5680471B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011091592A JP5680471B2 (en) 2011-04-15 2011-04-15 Sealing method for high pressure gas container base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011091592A JP5680471B2 (en) 2011-04-15 2011-04-15 Sealing method for high pressure gas container base

Publications (2)

Publication Number Publication Date
JP2012225373A JP2012225373A (en) 2012-11-15
JP5680471B2 true JP5680471B2 (en) 2015-03-04

Family

ID=47275774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011091592A Active JP5680471B2 (en) 2011-04-15 2011-04-15 Sealing method for high pressure gas container base

Country Status (1)

Country Link
JP (1) JP5680471B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5940991B2 (en) * 2013-01-24 2016-06-29 トヨタ自動車株式会社 Liner, production method thereof, and high-pressure gas tank
JP5936642B2 (en) 2013-04-17 2016-06-22 豊田合成株式会社 Pressure vessel liner, mold thereof, and pressure vessel
JP6241361B2 (en) * 2014-04-24 2017-12-06 トヨタ自動車株式会社 Liner, production method thereof, and high-pressure gas tank
JP6256190B2 (en) * 2014-05-20 2018-01-10 トヨタ自動車株式会社 Manufacturing method of high-pressure gas tank
JP6323254B2 (en) * 2014-08-26 2018-05-16 トヨタ自動車株式会社 tank

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1113995A (en) * 1997-06-23 1999-01-22 Kobe Steel Ltd Socket structure of pressure container of plastic liner frp(fiber reinforced plastics)
JP2000161590A (en) * 1998-11-27 2000-06-16 Asahi Technos:Kk Pressure container
JP2007010004A (en) * 2005-06-29 2007-01-18 Toyota Motor Corp Gas cylinder and its manufacturing method
JP4875915B2 (en) * 2006-03-29 2012-02-15 富士重工業株式会社 Pressure vessel
JP4599380B2 (en) * 2007-09-04 2010-12-15 八千代工業株式会社 Seal structure of high pressure vessel

Also Published As

Publication number Publication date
JP2012225373A (en) 2012-11-15

Similar Documents

Publication Publication Date Title
JP5680471B2 (en) Sealing method for high pressure gas container base
US9278716B1 (en) Fender for a vehicle including a body portion and a flexible seal portion
EP3470719B1 (en) Compound tube
JP2012016869A (en) Pressing device and method for manufacturing pneumatic tire using the same
US20140209602A1 (en) Flexible plastic packaging box
US20200062096A1 (en) Seal Assembly
JP2009034689A (en) Flanged square drawn container and method of manufacturing the same
CN110073133A (en) The method of the seal of tube, tube assembly and molding tube assembly and the seal of tube
JP6071804B2 (en) Injection mold
JP2017210274A (en) Metal container with flange and method for manufacturing the same
JP5158077B2 (en) In-mold coating mold
EP4011598B1 (en) Composite container
US20110226081A1 (en) Control cable
WO2013117855A3 (en) Method for producing a vanity unit assembly and vanity unit assembly obtained by this method
JP5848664B2 (en) Resin molded body
JP6315728B2 (en) Container and container manufacturing method
US20160129613A1 (en) Method and device for pressing a sealing compound on the inside of a lid for containers
JP2007061859A (en) Manufacturing method of head-closing film of tubular container, and head closing film
JP3202099U (en) Metal can
JP3607538B2 (en) Bearing seal and manufacturing method thereof
JP5807091B1 (en) Method for producing extruded product having synthetic resin core material
KR101949706B1 (en) Car interior material manufacuring apparatus
JP3142948U (en) Tableware with pattern made of transparent resin
JP5625386B2 (en) Service hall seal structure
CN106657506A (en) Metal-plastic double-layer mobile phone shell and manufacturing method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140313

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20141222

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150107

R150 Certificate of patent or registration of utility model

Ref document number: 5680471

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250