CN103324976A - Bidirectional-excitation relay attach-resisting non-contact IC (Integrated Circuit) card - Google Patents
Bidirectional-excitation relay attach-resisting non-contact IC (Integrated Circuit) card Download PDFInfo
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- CN103324976A CN103324976A CN2013102919425A CN201310291942A CN103324976A CN 103324976 A CN103324976 A CN 103324976A CN 2013102919425 A CN2013102919425 A CN 2013102919425A CN 201310291942 A CN201310291942 A CN 201310291942A CN 103324976 A CN103324976 A CN 103324976A
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Abstract
The invention provides a bidirectional-excitation relay attach-resisting non-contact IC (Integrated Circuit) card. The bidirectional-excitation relay attach-resisting non-contact IC card comprises a plastic sleeve, a metal interlayer, a first directional antenna, a first LC resonance circuit, a first IC chip, a second directional antenna, a second LC resonance circuit and a second IC chip, wherein the metal interlayer is arranged in the plastic sleeve; the first directional antenna, the first LC resonance circuit and the first IC chip are sequentially and electrically connected with one another, are arranged in the plastic sleeve and are positioned at one side of the metal interlayer; the second directional antenna, the second LC resonance circuit and the second IC chip are sequentially and electrically connected with one another, are arranged in the plastic sleeve and are positioned at the other side of the metal interlayer; the directional gain directions of the first directional antenna and the second directional antenna are opposite to each other, and the first IC chip and the second IC chip are respectively independent of each other in terms of responding; and data is prestored in the first IC chip and the second IC chip. The bidirectional-excitation relay attach-resisting non-contact IC card provided by the invention can be used for effectively preventing relay attach and effectively protecting the benefits of IC card lawful holders.
Description
Technical field
The present invention relates to a kind of IC-card (Integrated Circuit Card, integrated circuit card), relate in particular to a kind of non-contact IC card that can effectively resist the relay attack.
Background technology
Non-contact IC card (Integrated Circuit Card, integrated circuit card), claim again radio-frequency card, contactless card, it is by IC (integrated circuit, integrated circuit) chip, induction antenna form, be encapsulated in the plastic cards of a standard, chip and antenna are without any exposed parts.The IC-card sheet near the read write line surface, is finished the read-write operation of data in the certain distance scope by the transmission of radiowave.
Existing non-contact IC card, every card is equipped with an antenna, a LC resonant circuit and an IC chip.When the antenna reception of non-contact IC card encourages to read-write, the part that this IC-card will encourage and the LC resonant circuit of itself produce resonance, produce a transient energy and supply with the IC chip operation, another part is in conjunction with the energy that produces, make the IC chip finish the modification of data, storage etc., and by the antenna return data.
Existing non-contact IC card, launching once to IC-card, excitation just can produce complete response.
Existing non-contact IC card data are stored in the IC chip unique in the IC-card, an operating cycle read-write primary information.
Existing non-contact IC card can both produce response to the front of IC-card or back side emission excitation, and is non-directional.
The communications protocol of existing non-contact IC card is disclosed, and anyone can make Contactless IC Card Reader.
Because existing IC-card card reader operation IC-card has above-mentioned shortcoming, so the mode that rogue attacks person can utilize relay to attack obtains unlawful interests, causes damage to legal holden.
Relay is attacked and referred to: rogue attacks person does not need to understand the inner technical manual of encrypting of IC-card fully and just can implement to attack, assailant A holds IC-card card reader general on the market near legal holden, at this moment can produce the behavior of once swiping the card normally, data read card reader, then assailant A data communication device that card reader is read is crossed the 3G network of mobile phone, perhaps other wireless communication mode sends to assailant B, assailant B data in the strange land has just obtained the card of legal holden so, the IC-card that assailant B just is equivalent to hold on hand legal holden is the same, can consume or by gate inhibition etc.
Summary of the invention
The technical problem to be solved in the present invention is: overcome once excitation that existing non-contact IC card only need to receive front or the back side, easily suffer relay to attack the defective of bringing loss to the IC-card holder in due course, provide a kind of need to twice excitation of front and back after, could obtain complete data, effectively prevent relay attack, effectively protect the non-contact IC card of anti-relay attack of the two-way excitation of IC-card holder in due course interests.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: the non-contact IC card that a kind of anti-relay of two-way excitation is attacked, and it comprises a plastic envelope, a metal intermediate layer, one first directional antenna, one the one LC resonant circuit, one the one IC chip, one second directional antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;
This metal intermediate layer is contained in this plastic envelope;
This first directional antenna, a LC resonant circuit, an IC chip are electrically connected successively, and this first directional antenna, a LC resonant circuit, an IC chip are installed in this plastic envelope and all are positioned at a side of this metal intermediate layer;
This second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively, and this second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are installed in this plastic envelope and all are positioned at the opposite side of this metal intermediate layer;
The directive gain opposite direction of this first directional antenna and the second directional antenna, an IC chip and the 2nd IC chip be separate responses separately;
The non-contact IC card that the anti-relay of this two-way excitation is attacked in an IC chip and the 2nd IC chip, need to respectively encourage first power can obtain complete data to an IC chip and the 2nd IC chip data pre-storage.
The further restriction of technique scheme is, this first directional antenna and this second directional antenna all are around the ground setting along rectangular shape, the central point of this first directional antenna and this second directional antenna overlaps, the length of this second directional antenna and Width shorten with equal proportion ground according to length and the width of this first directional antenna, so this first directional antenna arranges ringwise with this second directional antenna.
The further restriction of technique scheme is, this first directional antenna and this second directional antenna all are around the ground setting along rectangular shape, this first directional antenna is all identical with width with this second directional antenna length, and this first directional antenna and this second directional antenna are not overlapping.
The further restriction of technique scheme is, the non-contact IC card that the directive gain perpendicular direction of this first directional antenna is attacked in the anti-relay of this two-way excitation, and receive only the pumping signal that comes from the IC-card front; The non-contact IC card that the directive gain perpendicular direction of this second directional antenna is attacked in the anti-relay of this two-way excitation, and receive only the pumping signal that comes from the IC-card back side.
The further restriction of technique scheme is, this plastic envelope is rectangular parallelepiped; This metal intermediate layer is rectangular parallelepiped, is made by metal material.
The further restriction of technique scheme is, all is encapsulated around this plastic envelope.
Compared with prior art; the present invention has following beneficial effect: the non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked; need to after twice excitation of front and back, could obtain complete data; increase rogue attacks person and carried out the difficulty that relay is attacked; therefore can effectively resist relay attacks; protected the IC-card holder in due course, avoided incurring loss.
Description of drawings
Fig. 1 is the three-dimensional exploded view of non-contact IC card the first embodiment of attacking of the anti-relay of the two-way excitation of the present invention.
Fig. 2 is the side view of non-contact IC card the first embodiment of attacking of the anti-relay of the two-way excitation of the present invention.
The use schematic diagram that Fig. 3 is non-contact IC card the first embodiment of attacking of the anti-relay of the two-way excitation of the present invention when the pumping signal that receives from the IC-card front.
The use schematic diagram that Fig. 4 is non-contact IC card the first embodiment of attacking of the anti-relay of the two-way excitation of the present invention when the pumping signal that receives from the IC-card back side.
Fig. 5 is the three-dimensional exploded view of non-contact IC card the second embodiment of attacking of the anti-relay of the two-way excitation of the present invention.
Fig. 6 is the side view of non-contact IC card the second embodiment of attacking of the anti-relay of the two-way excitation of the present invention.
The use schematic diagram that Fig. 7 is non-contact IC card the second embodiment of attacking of the anti-relay of the two-way excitation of the present invention when the pumping signal that receives from the IC-card front.
The use schematic diagram that Fig. 8 is non-contact IC card the second embodiment of attacking of the anti-relay of the two-way excitation of the present invention when the pumping signal that receives from the IC-card back side.
Embodiment
As shown in Figures 1 to 4, the first embodiment of the non-contact IC card of attacking for the anti-relay of a kind of two-way excitation of the present invention, it comprises a plastic envelope 11, a metal intermediate layer 12, one first directional antenna 13, one the one LC resonant circuit 14, one the one IC chip 15, one second directional antenna 16, one the 2nd LC resonant circuit 17, one the 2nd IC chip 18.
These plastic envelope 11 integral body are rectangular parallelepiped.
This metal intermediate layer 12 is rectangular parallelepiped, is made by metal material.
This metal intermediate layer 12 is contained in this plastic envelope 11.
This first directional antenna 13, a LC resonant circuit 14, an IC chip 15 are electrically connected successively.
This first directional antenna 13, a LC resonant circuit 14, an IC chip 15 are installed in this plastic envelope 11 and all are positioned at a side of this metal intermediate layer 12.
This second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 are electrically connected successively.
This second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 are installed in this plastic envelope 11 and all are positioned at the opposite side of this metal intermediate layer 12.
This first directional antenna 13 and this second directional antenna 16 all are around the ground setting along rectangular shape.The central point of this first directional antenna 13 and this second directional antenna 16 overlaps, the length of this second directional antenna 16 and Width shorten with equal proportion ground according to length and the width of this first directional antenna 13, so this first directional antenna 13 arranges ringwise with this second directional antenna 16.
This metal intermediate layer 12, the first directional antenna 13, a LC resonant circuit 14, an IC chip 15, the second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 are all packed into after this plastic envelope 11, to all be encapsulated around this plastic envelope 11, prevent that inner assembly from dropping out, intraware does not expose.
This first directional antenna 13 and the second directional antenna 16 all present the characteristic of directional antenna, to the reception of specific direction pumping signal and response gain much larger than other direction, especially greater than with the specific direction angle be 180 ° direction.
This metal intermediate layer 12 is positioned at the centre of this first directional antenna 13, a LC resonant circuit 14, an IC chip 15 and this second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18, and they are spaced apart, first effect is: will isolate make it to arrive the back side or will isolate from the excitation at metal intermediate layer 12 back sides from the excitation in metal intermediate layer 12 fronts making it to arrive the front, another effect is: utilize principle of reflection that the excitations from metal intermediate layer 12 certain one side are focused on this face.
Because the buffer action of 12 pairs of excitations of above-mentioned metal intermediate layer, the directive gain opposite direction of this first directional antenna 13 and the second directional antenna 16, specifically, the directive gain perpendicular direction of this first directional antenna 13 is in IC-card of the present invention, and receive only and come from the IC-card front (on the direction, IC-card is positive to be in the same side with metal intermediate layer 12 fronts) pumping signal, after receiving positive pumping signal, the one LC resonant circuit 14 generation currents and energy offer an IC chip 15 and use.The directive gain perpendicular direction of this second directional antenna 16 is in IC-card of the present invention, and receive only and come from the IC-card back side (on the direction, the IC-card back side and metal intermediate layer 12 back sides are in the same side) pumping signal, after the pumping signal of receiving the back side, the 2nd LC resonant circuit 17 generation currents and energy offer the 2nd IC chip 18 and use.
Because the buffer action of 12 pairs of excitations of above-mentioned metal intermediate layer, an IC chip 15 and the 2nd IC chip 18 be separate responses and can not working simultaneously separately.In the time of the first directional antenna 13 responsing excitation, only have a LC resonant circuit 14 and an IC chip 15 work, the 2nd LC resonant circuit 17 and the 2nd IC chip 18 are not worked.In the time of the second directional antenna 16 responsing excitation, only have the 2nd LC resonant circuit 17 and 18 work of the 2nd IC chip, a LC resonant circuit 14 and an IC chip 15 are not worked.
The non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked with data pre-storage in an IC chip 15 and the 2nd IC chip 18.
The non-contact IC calorie requirement that the anti-relay of the two-way excitation of the present invention is attacked respectively encourages once an IC chip 15 and the 2nd IC chip 18, also just says altogether and will encourage twice, can obtain complete data.
As shown in Figure 3 and Figure 4, when using the non-contact IC card that the anti-relay of the two-way excitation of the present invention attacks, at first face toward the front transmission excitation (being called positive incentive) of this IC-card with the read-write equipment 100 of an outside, only can carry out read-write operation to the IC chip 15 in the IC-card, then face toward the back side transmission excitation (being called reverse energization) of this IC-card with the read-write equipment 100 of an outside, only can carry out read-write operation to the 2nd IC chip 18 in the IC-card, the data that obtain after twice operation are only complete effective information after making up according to specific mode.
The present invention has following effect: the non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked; need to once altogether could obtain complete data after twice excitation in each excitation of front and back; increase rogue attacks person and carried out the difficulty that relay is attacked; therefore can effectively resist relay attacks; protected the IC-card holder in due course, avoided incurring loss.
Extremely shown in Figure 8 such as Fig. 5, the second embodiment of the non-contact IC card of attacking for the anti-relay of a kind of two-way excitation of the present invention, it comprises a plastic envelope 21, a metal intermediate layer 22, one first directional antenna 23, one the one LC resonant circuit 24, one the one IC chip 25, one second directional antenna 26, one the 2nd LC resonant circuit 27, one the 2nd IC chip 28.
These plastic envelope 21 integral body are rectangular parallelepiped.
This metal intermediate layer 22 is rectangular parallelepiped, is made by metal material.
This metal intermediate layer 22 is contained in this plastic envelope 21.
This first directional antenna 23, a LC resonant circuit 24, an IC chip 25 are electrically connected successively.
This first directional antenna 23, a LC resonant circuit 24, an IC chip 25 are installed in this plastic envelope 21 and all are positioned at a side of this metal intermediate layer 22.
This second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 are electrically connected successively.
This second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 are installed in this plastic envelope 21 and all are positioned at the opposite side of this metal intermediate layer 22.
This first directional antenna 23 and this second directional antenna 26 all are around the ground setting along rectangular shape.This first directional antenna 23 is all identical with width with these the second directional antenna 26 length.This first directional antenna 23 and this second directional antenna 26 are arranged side by side and are not overlapping.
This metal intermediate layer 22, the first directional antenna 23, a LC resonant circuit 24, an IC chip 25, the second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 are all packed into after this plastic envelope 21, to all be encapsulated around this plastic envelope 21, prevent that inner assembly from dropping out, intraware does not expose.
This first directional antenna 23 and the second directional antenna 26 all present the characteristic of directional antenna, to the reception of specific direction pumping signal and response gain much larger than other direction, especially greater than with the specific direction angle be 180 ° direction.
This metal intermediate layer 22 is positioned at the centre of this first directional antenna 23, a LC resonant circuit 24, an IC chip 25 and this second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28, and they are spaced apart, first effect is: will isolate make it to arrive the back side or will isolate from the excitation at metal intermediate layer 22 back sides from the excitation in metal intermediate layer 22 fronts making it to arrive the front, another effect is: utilize principle of reflection that the excitations from metal intermediate layer 22 certain one side are focused on this face.
Because the buffer action of 22 pairs of excitations of above-mentioned metal intermediate layer, an IC chip 25 and the 2nd IC chip 28 be separate responses and can not working simultaneously separately.In the time of the first directional antenna 23 responsing excitation, only have a LC resonant circuit 24 and an IC chip 25 work, the 2nd LC resonant circuit 27 and the 2nd IC chip 28 are not worked.In the time of the second directional antenna 26 responsing excitation, only have the 2nd LC resonant circuit 27 and 28 work of the 2nd IC chip, a LC resonant circuit 24 and an IC chip 25 are not worked.
Because the buffer action of 22 pairs of excitations of above-mentioned metal intermediate layer, the directive gain opposite direction of this first directional antenna 23 and the second directional antenna 26, specifically, the directive gain perpendicular direction of this first directional antenna 23 is in IC-card of the present invention, can only receive the pumping signal that comes from the IC-card front, after receiving positive pumping signal, a LC resonant circuit 24 generation currents and energy offer an IC chip 25 and use.The directive gain perpendicular direction of this second directional antenna 26 is in IC-card of the present invention, can only receive the pumping signal that comes from the IC-card back side, after the pumping signal of receiving the back side, the 2nd LC resonant circuit 27 generation currents and energy offer the 2nd IC chip 28 and use.
The non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked with data pre-storage in an IC chip 25 and the 2nd IC chip 28.
The non-contact IC calorie requirement that the anti-relay of the two-way excitation of the present invention is attacked respectively encourages once an IC chip 25 and the 2nd IC chip 28, that is to say and altogether encourages twice, can obtain complete data.
As shown in Figure 7 and Figure 8, when using the non-contact IC card that the anti-relay of the two-way excitation of the present invention attacks, at first face toward the front transmission excitation (being called positive incentive) of this IC-card with the read-write equipment 200 of an outside, IC chip 25 in the IC-card is carried out read-write operation, then with the back side transmission excitation (be called reverse energization) of read-write equipment 200 facing to this IC-card, the 2nd IC chip 28 in the IC-card is carried out read-write operation, the data that obtain after twice operation are only complete effective information after making up according to specific mode.
Second embodiment of the invention can obtain the technique effect identical with the first embodiment.
Claims (6)
1. the non-contact IC card attacked of the anti-relay of a two-way excitation, it is characterized in that, it comprises a plastic envelope, a metal intermediate layer, one first directional antenna, one the one LC resonant circuit, one the one IC chip, one second directional antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;
This metal intermediate layer is contained in this plastic envelope;
This first directional antenna, a LC resonant circuit, an IC chip are electrically connected successively, and this first directional antenna, a LC resonant circuit, an IC chip are installed in this plastic envelope and all are positioned at a side of this metal intermediate layer;
This second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively, and this second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are installed in this plastic envelope and all are positioned at the opposite side of this metal intermediate layer;
The directive gain opposite direction of this first directional antenna and the second directional antenna, an IC chip and the 2nd IC chip be separate responses separately;
The non-contact IC card that the anti-relay of this two-way excitation is attacked in an IC chip and the 2nd IC chip, need to respectively encourage first power can obtain complete data to an IC chip and the 2nd IC chip data pre-storage.
2. the non-contact IC card attacked of the anti-relay of a kind of two-way excitation according to claim 1, it is characterized in that, this first directional antenna and this second directional antenna all are around the ground setting along rectangular shape, the central point of this first directional antenna and this second directional antenna overlaps, the length of this second directional antenna and Width shorten with equal proportion ground according to length and the width of this first directional antenna, so this first directional antenna arranges ringwise with this second directional antenna.
3. the non-contact IC card attacked of the anti-relay of a kind of two-way excitation according to claim 1, it is characterized in that, this first directional antenna and this second directional antenna all are around the ground setting along rectangular shape, this first directional antenna is all identical with width with this second directional antenna length, and this first directional antenna and this second directional antenna are arranged side by side and are not overlapping.
4. according to claim 1, the non-contact IC card of the anti-relay attack of 2 or 3 described a kind of two-way excitations, it is characterized in that, the non-contact IC card that the directive gain perpendicular direction of this first directional antenna is attacked in the anti-relay of this two-way excitation, and receive only the pumping signal that comes from the IC-card front; The non-contact IC card that the directive gain perpendicular direction of this second directional antenna is attacked in the anti-relay of this two-way excitation, and receive only the pumping signal that comes from the IC-card back side.
5. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1 is characterized in that, this plastic envelope is rectangular parallelepiped; This metal intermediate layer is rectangular parallelepiped, is made by metal material.
6. the non-contact IC card attacked of a kind of anti-relay of two-way excitation according to claim 1 or 5 is characterized in that, all is encapsulated around this plastic envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291942.5A CN103324976B (en) | 2013-07-12 | 2013-07-12 | A kind of non-contact IC card of anti-relay attack of two-way excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291942.5A CN103324976B (en) | 2013-07-12 | 2013-07-12 | A kind of non-contact IC card of anti-relay attack of two-way excitation |
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| Publication Number | Publication Date |
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| CN103324976A true CN103324976A (en) | 2013-09-25 |
| CN103324976B CN103324976B (en) | 2016-03-02 |
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| CN201310291942.5A Active CN103324976B (en) | 2013-07-12 | 2013-07-12 | A kind of non-contact IC card of anti-relay attack of two-way excitation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074000A1 (en) * | 2003-02-24 | 2004-09-02 | Sdu Identification B.V. | Identity card and travel document |
| CN1855629A (en) * | 2005-04-25 | 2006-11-01 | 琳得科股份有限公司 | Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card |
| US20090145971A1 (en) * | 2007-12-07 | 2009-06-11 | Wen Cheng Yin | Printed wireless rf identification label structure |
| CN202183113U (en) * | 2011-08-19 | 2012-04-04 | 武汉市工程科学技术研究院 | Non-contact IC card having an electromagnetic signal protection function |
| CN203376770U (en) * | 2013-07-12 | 2014-01-01 | 武汉市工科院科技园孵化器有限公司 | Non-contact IC card with bidirectional excitation and relay attack resistance |
-
2013
- 2013-07-12 CN CN201310291942.5A patent/CN103324976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074000A1 (en) * | 2003-02-24 | 2004-09-02 | Sdu Identification B.V. | Identity card and travel document |
| CN1855629A (en) * | 2005-04-25 | 2006-11-01 | 琳得科股份有限公司 | Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card |
| US20090145971A1 (en) * | 2007-12-07 | 2009-06-11 | Wen Cheng Yin | Printed wireless rf identification label structure |
| CN202183113U (en) * | 2011-08-19 | 2012-04-04 | 武汉市工程科学技术研究院 | Non-contact IC card having an electromagnetic signal protection function |
| CN203376770U (en) * | 2013-07-12 | 2014-01-01 | 武汉市工科院科技园孵化器有限公司 | Non-contact IC card with bidirectional excitation and relay attack resistance |
Non-Patent Citations (2)
| Title |
|---|
| PETER LAACKMANN，等: "非接触智能卡安全分析", 《金卡工程》 * |
| 蒋烨，等: "非接触式IC卡干扰式旁路攻击与防护", 《信息安全与通信保密》 * |
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| CN103324976B (en) | 2016-03-02 |
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Inventor after: Zhou Gang Inventor after: Li Guoqiang Inventor after: He Liang Inventor after: Song Dan Inventor after: Cai Gangshan Inventor before: Zhou Gang Inventor before: He Liang Inventor before: Song Dan Inventor before: Cai Gangshan Inventor before: Luo Hu |
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Effective date of registration: 20160825 Address after: 430000 Hubei city of Wuhan province Huaqiao Street Jiang'an District River Road No. 30 Patentee after: WUHAN SHENJIE TECH CORPORATION LIMITED Address before: 430000, No. 30, Jiang Da Road, Jiang'an District, Hubei, Wuhan Patentee before: Westi Science Park Incubator Co., Ltd. |