WO2015080025A1 - 光コネクタ及びシールドケース - Google Patents
光コネクタ及びシールドケース Download PDFInfo
- Publication number
- WO2015080025A1 WO2015080025A1 PCT/JP2014/080810 JP2014080810W WO2015080025A1 WO 2015080025 A1 WO2015080025 A1 WO 2015080025A1 JP 2014080810 W JP2014080810 W JP 2014080810W WO 2015080025 A1 WO2015080025 A1 WO 2015080025A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shield case
- ground pin
- side fot
- light emitting
- light receiving
- 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.)
- Ceased
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
- G02B6/4277—Protection against electromagnetic interference [EMI], e.g. shielding means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4246—Bidirectionally operating package structures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
Definitions
- the present invention relates to an optical connector and a shield case used for the optical connector.
- the receptacle-type optical connector As optical connectors, a plug-type optical connector and a receptacle-type optical connector into which the plug-type optical connector is fitted are known.
- the plug type optical connector accommodates and holds a ferrule provided at the end of the optical fiber.
- the receptacle-type optical connector is configured to be mounted on a circuit board built in a device.
- the receptacle type optical connector includes a light emitting side FOT (Fiber Optic Transceiver) having a light emitting element, a light receiving side FOT having a light receiving element, a connector housing for accommodating the light emitting side FOT and the light receiving side FOT, and a connector.
- a light-emitting side FOT and a light-receiving side FOT are collectively covered from above the housing, and a shield case is provided to take countermeasures against electromagnetic noise (see Patent Document 1).
- the shield case is formed by pressing a glossy thin metal plate that is not particularly surface-treated, and has a substantially U-shaped cross section so as to cover the connector housing. Is formed.
- the shield case also has a ground pin at the open end of the U-shape, and the ground pin is connected to the through-hole of the circuit board via solder and connected to the ground, and to the circuit board of the optical connector. It is comprised so that it may contribute to fixation of.
- a pin-in paste method is adopted in which a solder paste is buried in a through hole formed in a circuit board, a ground pin is inserted into the through hole, and then the optical connector and the circuit board are put into a high-temperature furnace.
- the ground pin is difficult to contact with the through hole due to the structure, and the holding force of the shield case with respect to the circuit board tends to vary and does not tend to be stable.
- the ground pin is also thin and easily bent.
- the present invention solves such a problem, and its object is to stabilize the holding force of the shield case with respect to the circuit board and to reduce the possibility that the ground pin is bent.
- the object is to provide a possible optical connector and shield case.
- a light emitting side FOT (Fiber Optical Transceiver) having a light emitting element, a light receiving side FOT having a light receiving element, a connector housing for accommodating the light emitting side FOT and the light receiving side FOT, and the connector housing from above the connector housing
- a shield case that covers the light emitting side FOT and the light receiving side FOT together to take countermeasures against electromagnetic noise, and the shield case has a substantially U-shaped cross section
- a ground pin that is inserted into a through-hole formed in the circuit board and connected to the ground is formed at the open end of the substantially U shape, and the ground pin has a substantially semicircular cross section in the insertion direction.
- a shield case having a substantially U-shaped cross section, and a ground pin that is inserted into a through-hole formed in the circuit board and connected to the ground is formed at the open end of the substantially U-shape.
- the ground pin has a substantially semicircular cross section with respect to the insertion direction.
- the ground pin has a substantially semicircular cross section in the insertion direction.
- the adhesion area of the solder becomes large, and the holding power of the shield case with respect to the circuit board can be stabilized. it can.
- a force (load) is applied to the tip of a ground pin whose cross section with respect to the insertion direction is approximately semicircular, the stress is dispersed by the substantially semicircular cross section and the ground pin can be bent. Is reduced. Therefore, it is possible to stabilize the holding force of the shield case with respect to the substrate and reduce the possibility that the ground pin is bent.
- the present invention it is possible to stabilize the holding force of the shield case to the substrate and reduce the possibility that the ground pin is bent.
- FIG. 1 is a perspective view showing an embodiment of an optical connector according to the present invention.
- FIG. 2 is a perspective view showing a state when the optical connector shown in FIG. 1 is mounted on a circuit board.
- FIG. 3 is an enlarged view showing a ground pin portion of a shield case according to a comparative example.
- FIG. 4 is an enlarged view showing a state when the ground pin of the shield case according to the comparative example is inserted into the through hole.
- FIG. 5 is an enlarged view showing a ground pin portion of the shield case according to the present embodiment.
- FIG. 6 is an enlarged view showing a state when the ground pin of the shield case according to the present embodiment is inserted into the through hole.
- 7A is a perspective view showing the stress state of the ground pin according to the present embodiment shown in FIG. 5, and
- FIG. 7B is a perspective view showing the stress state of the ground pin according to the comparative example shown in FIG. It is.
- FIG. 1 is a perspective view showing an embodiment of an optical connector according to the present invention.
- the optical connector 1 shown in FIG. 1 is of a receptacle type, and includes a connector housing 2, a pair of lenses 4, a light emitting side FOT (Fiber Optic Transceiver) 5, a light receiving side FOT 6, and a shield case 7. Configured.
- FOT Fiber Optic Transceiver
- the connector housing 2 is a box-shaped member formed of an insulating synthetic resin material, and is opposite to a side (hereinafter referred to as rear (B)) on which a pair of lenses 4 are provided (hereinafter referred to as front (F)). ), A plug type optical connector (not shown) is inserted and fitted.
- the pair of lenses 4 is an optical member that is molded from a transparent synthetic resin material having optical transparency, and has a convex lens function.
- the lens 4 a used for the light receiving side FOT 6 is provided at a position where light from the end of a ferrule (not shown) is condensed on the light receiving side FOT 6.
- the lens 4b used for the light emission side FOT5 is also provided at the same position as the lens 4a used for the light reception side FOT6.
- the light emitting side FOT 5 includes a plurality of lead frames 14 electrically connected to the circuit of the circuit board 100 (see FIG. 2), a light emitting element (for example, Laser Diode or Light Emitting Diode), and a mold part 16. ing.
- the light emitting element is mounted on one of the plurality of lead frames 14.
- the light emitting element and the remaining lead frame 14 are electrically connected.
- the mold portion 16 covers the light emitting element and the electrical connection portion with a cover, and fills the cover with a light-transmitting synthetic resin material, whereby the light emitting element and the electrical connection portion are filled. And can be protected.
- a window 18 facing the light emitting element is formed in the mold part 16. The window 18 is disposed to face the lens 4b.
- the light receiving side FOT 6 includes a plurality of lead frames 14 electrically connected to the circuit of the circuit board 100 (see FIG. 2), a light receiving element (for example, photodiode), and a mold portion 16.
- the light receiving element is mounted on one of the plurality of lead frames 14.
- the light receiving element and the remaining lead frame 14 are electrically connected.
- the mold portion 16 covers the light receiving element and the electrical connection portion with a cover, and fills the cover with a light-transmitting synthetic resin material, whereby the light receiving element and the electrical connection portion are filled. And can be protected.
- a window 18 facing the light receiving element is formed in the mold part 16. The window 18 is disposed to face the lens 4b.
- the shield case 7 is a shield member formed by pressing a conductive metal thin plate, and covers the light emitting side FOT 5 and the light receiving side FOT 6 from above the connector housing 2 to prevent electromagnetic noise. It is something to apply.
- the shield case 7 has a substantially U-shaped cross section (a cross section parallel to the front-rear direction).
- the shield case 7 has four (plural) ground pins 20 formed at the open end on the substantially U-shape. Specifically, two ground pins 20 are formed at each of the open end portions of the substantially U shape, and the two ground pins 20 at the open end portions are spaced apart in the front-rear direction. Is provided.
- FIG. 2 is a perspective view showing a state when the optical connector 1 shown in FIG. 1 is mounted on the circuit board 100.
- a through hole 101 is formed in the circuit board 100.
- the through hole 101 is formed corresponding to the position where the four ground pins 20 are formed, and is grounded. For this reason, when the ground pin 20 is inserted into the through-hole 101 and soldered, the shield case 7 is also grounded, and electromagnetic noise countermeasures are taken.
- FIG. 3 is an enlarged view showing the ground pin portion of the shield case according to the comparative example
- FIG. 4 is an enlarged view showing a state when the ground pin 22 of the shield case according to the comparative example is inserted into the through hole 101. It is. 4 shows a state when viewed from the back side of the circuit board 100 (that is, the back side of the circuit board 100 shown in FIG. 2).
- the ground pin 22 according to the comparative example has a flat plate shape having a thickness similar to the thickness of the shield case 24. For this reason, when the ground pin 22 is soldered to the through hole 101 by the pin-in paste method, the solder hardly adheres to the surface portion 22a of the ground pin 22 (see FIG. 4). When the solder does not adhere to the surface portion 22a, the solder adheres only to the side portion 22b. Therefore, there is a tendency that the holding force of the shield case 24 with respect to the circuit board 100 varies and becomes unstable depending on whether the solder is attached to the surface portion 22a or not. Further, the flat ground pin 22 is liable to bend in the lateral direction (S).
- FIG. 5 is an enlarged view showing a ground pin portion of the shield case according to the present embodiment
- FIG. 6 is an enlarged view showing a state when the ground pin of the shield case according to the present embodiment is inserted into the through hole 101.
- FIG. 6 shows a state when viewed from the back side of the circuit board 100 (that is, the back side of the circuit board 100 shown in FIG. 2).
- the ground pin 20 has a thickness similar to the thickness of the shield case 7, but has a substantially semicircular cross-sectional shape in the insertion direction. This semicircular shape is convex outward in the lateral direction of the shield case 7. Since the ground pin 20 has a substantially semicircular cross section in this way, as shown in FIG. 6, the ground pin 20 has not only the side portion 20b but also a semi-cylindrical outer surface portion (surface on the convex side). Solder easily adheres to 20a, and the holding force of the shield case 7 to the circuit board 100 becomes stable. Further, the ground pin 20 having a substantially semicircular cross section with respect to the insertion direction is less likely to bend in the lateral direction (S).
- FIG. 7A is a perspective view showing a stress state of the ground pin 20 according to the present embodiment shown in FIG. 5, and FIG. 7B is a stress of the ground pin 22 according to the comparative example shown in FIG. It is a perspective view which shows a state. In FIG. 7, it is assumed that dots are written at stress concentration points.
- the ground pin 20 has a substantially semicircular cross section in the insertion direction.
- the adhesion area of the solder increases and the holding force of the shield case 7 to the circuit board 100 is increased. Stabilization can be achieved.
- the ground pin 20 having a substantially semicircular cross section with respect to the insertion direction when a force (P) is applied to the tip thereof, the stress is dispersed by the substantially semicircular cross section, and the ground pin 20 is bent. The possibility of is reduced. Accordingly, it is possible to stabilize the holding force of the shield case 7 with respect to the circuit board 100 and reduce the possibility that the ground pin 20 is bent.
- An optical connector (1), The shield case (7) has a substantially U-shaped cross section, and is inserted into a through-hole (101) formed in the circuit board (100) at the open end of the substantially U-shape.
- a ground pin (20) to be grounded is formed,
- the light emitting side FOT (5) and the light receiving side FOT (6) from above the connector housing (2) that houses the light emitting side FOT (5) having the light emitting element and the light receiving side FOT (6) having the light receiving element. ) Is a shield case (7) that covers these with electromagnetic noise countermeasures,
- the cross-section is substantially U-shaped, and a ground pin (20) that is inserted into a through hole (101) formed in the circuit board (100) and connected to the ground at the open end portion of the substantially U-shape.
- the ground pin (20) has a substantially semicircular cross section with respect to the insertion direction. Shield case (7).
- the ground pin 20 is convex outward in the lateral direction, but is not limited thereto, and may be convex inward in the lateral direction.
- the ground pin 20 has a substantially semicircular cross section with respect to the insertion direction.
- the substantially semicircular shape is a concept including a semicircle and a substantially oval. Accordingly, the ground pin 20 may have a semicircular or substantially elliptical cross section.
- the holding force of the shield case with respect to the circuit board can be stabilized, and the possibility that the ground pin is bent can be reduced.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Semiconductor Lasers (AREA)
Abstract
Description
(1) 発光素子を有する発光側FOT(Fiber Optic Transceiver)と、受光素子を有する受光側FOTと、これら前記発光側FOT及び前記受光側FOTを収容するコネクタハウジングと、前記コネクタハウジングの上から前記発光側FOT及び前記受光側FOTを一括して覆うことによりこれらに電磁ノイズ対策を施すシールドケースと、を備える光コネクタであって、前記シールドケースは、断面が略Uの字形状とされ、前記略Uの字形状の開放側先端部には、回路基板に形成されたスルーホールに挿入されてアース接続されるグランドピンが形成され、前記グランドピンは、挿入方向に対する横断面が略半円形状とされている光コネクタ。
従って、回路基板100に対するシールドケース7の保持力について安定化を図ると共に、グランドピン20が曲がってしまう可能性を低減することができる。
[1] 発光素子を有する発光側FOT(5)と、受光素子を有する受光側FOT(6)と、これら前記発光側FOT(5)及び前記受光側FOT(6)を収容するコネクタハウジング(2)と、前記コネクタハウジング(2)の上から前記発光側FOT(5)及び前記受光側FOT(6)を一括して覆うことによりこれらに電磁ノイズ対策を施すシールドケース(7)と、を備える光コネクタ(1)であって、
前記シールドケース(7)は、断面が略Uの字形状とされ、前記略Uの字形状の開放側先端部には、回路基板(100)に形成されたスルーホール(101)に挿入されてアース接続されるグランドピン(20)が形成され、
前記グランドピン(20)は、挿入方向に対する横断面が略半円形状とされている
光コネクタ(1)。
[2] 発光素子を有する発光側FOT(5)と受光素子を有する受光側FOT(6)とを収容するコネクタハウジング(2)の上から前記発光側FOT(5)及び前記受光側FOT(6)を一括して覆うことによりこれらに電磁ノイズ対策を施すシールドケース(7)であって、
断面が略Uの字形状とされ、前記略Uの字形状の開放側先端部には、回路基板(100)に形成されたスルーホール(101)に挿入されてアース接続されるグランドピン(20)が形成され、
前記グランドピン(20)は、挿入方向に対する横断面が略半円形状とされている
シールドケース(7)。
また、本出願は、2013年11月26日出願の日本特許出願(特願2013-243609)に基づくものであり、その内容はここに参照として取り込まれる。
2…コネクタハウジング
4…一対のレンズ
5…発光側FOT
6…受光側FOT
7…シールドケース
8…開口
14…リードフレーム
16…モールド部
18…窓
20…グランドピン
20a…面部
20b…側部
100…回路基板
101…スルーホール
Claims (2)
- 発光素子を有する発光側FOTと、受光素子を有する受光側FOTと、これら前記発光側FOT及び前記受光側FOTを収容するコネクタハウジングと、前記コネクタハウジングの上から前記発光側FOT及び前記受光側FOTを一括して覆うことによりこれらに電磁ノイズ対策を施すシールドケースと、を備える光コネクタであって、
前記シールドケースは、断面が略Uの字形状とされ、前記略Uの字形状の開放側先端部には、回路基板に形成されたスルーホールに挿入されてアース接続されるグランドピンが形成され、
前記グランドピンは、挿入方向に対する横断面が略半円形状とされている
光コネクタ。 - 発光素子を有する発光側FOTと受光素子を有する受光側FOTとを収容するコネクタハウジングの上から前記発光側FOT及び前記受光側FOTを一括して覆うことによりこれらに電磁ノイズ対策を施すシールドケースであって、
断面が略Uの字形状とされ、前記略Uの字形状の開放側先端部には、回路基板に形成されたスルーホールに挿入されてアース接続されるグランドピンが形成され、
前記グランドピンは、挿入方向に対する横断面が略半円形状とされている
シールドケース。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112014005391.0T DE112014005391T5 (de) | 2013-11-26 | 2014-11-20 | Optischer Verbinder und Abschirmgehäuse |
| JP2015550892A JPWO2015080025A1 (ja) | 2013-11-26 | 2014-11-20 | 光コネクタ及びシールドケース |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013243609 | 2013-11-26 | ||
| JP2013-243609 | 2013-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015080025A1 true WO2015080025A1 (ja) | 2015-06-04 |
Family
ID=53198969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/080810 Ceased WO2015080025A1 (ja) | 2013-11-26 | 2014-11-20 | 光コネクタ及びシールドケース |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2015080025A1 (ja) |
| DE (1) | DE112014005391T5 (ja) |
| WO (1) | WO2015080025A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488432B (zh) * | 2019-08-09 | 2021-10-01 | 烽火通信科技股份有限公司 | 具有抗干扰性能的光收发一体组件及bob光模块 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0613075U (ja) * | 1992-04-22 | 1994-02-18 | ホシデン株式会社 | 配線基板実装用電子部品 |
| JPH0935782A (ja) * | 1995-07-19 | 1997-02-07 | Japan Aviation Electron Ind Ltd | レセプタクルシェル |
| JP2001116958A (ja) * | 1999-10-14 | 2001-04-27 | Hitachi Ltd | 光モジュール、光モジュールの実装体および光モジュールの実装方法 |
| US20030161363A1 (en) * | 2002-02-27 | 2003-08-28 | Optronx, Inc. | Optical transmitter and transponder that operate without thermoelectric cooler |
| JP2006215273A (ja) * | 2005-02-03 | 2006-08-17 | Yazaki Corp | 光コネクタ |
| JP2009069710A (ja) * | 2007-09-18 | 2009-04-02 | Yazaki Corp | 光モジュール |
| JP2010044135A (ja) * | 2008-08-11 | 2010-02-25 | Liburdi Francesco | 光学コネクタとしてのemiシールド |
-
2014
- 2014-11-20 WO PCT/JP2014/080810 patent/WO2015080025A1/ja not_active Ceased
- 2014-11-20 DE DE112014005391.0T patent/DE112014005391T5/de not_active Withdrawn
- 2014-11-20 JP JP2015550892A patent/JPWO2015080025A1/ja not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0613075U (ja) * | 1992-04-22 | 1994-02-18 | ホシデン株式会社 | 配線基板実装用電子部品 |
| JPH0935782A (ja) * | 1995-07-19 | 1997-02-07 | Japan Aviation Electron Ind Ltd | レセプタクルシェル |
| JP2001116958A (ja) * | 1999-10-14 | 2001-04-27 | Hitachi Ltd | 光モジュール、光モジュールの実装体および光モジュールの実装方法 |
| US20030161363A1 (en) * | 2002-02-27 | 2003-08-28 | Optronx, Inc. | Optical transmitter and transponder that operate without thermoelectric cooler |
| JP2006215273A (ja) * | 2005-02-03 | 2006-08-17 | Yazaki Corp | 光コネクタ |
| JP2009069710A (ja) * | 2007-09-18 | 2009-04-02 | Yazaki Corp | 光モジュール |
| JP2010044135A (ja) * | 2008-08-11 | 2010-02-25 | Liburdi Francesco | 光学コネクタとしてのemiシールド |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014005391T5 (de) | 2016-08-25 |
| JPWO2015080025A1 (ja) | 2017-03-16 |
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