CN204795586U - Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer - Google Patents
Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer Download PDFInfo
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- CN204795586U CN204795586U CN201520182013.5U CN201520182013U CN204795586U CN 204795586 U CN204795586 U CN 204795586U CN 201520182013 U CN201520182013 U CN 201520182013U CN 204795586 U CN204795586 U CN 204795586U
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- electrode layer
- potsherd
- piezo electric
- bimorph piezo
- electrode
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Abstract
The utility model discloses a twin crystal piezoceramics piece is provided with the electrode layer respectively on the upper and lower surface of twin crystal piezoceramics piece, and the electrode layer of upper surface is separated into two couples of front electrode layer that each other do not switch on and is greater than a front electrode layer with a rear electrode layer and a rear electrode layer, the electrode layer of lower surface is also separated into two couples of the 2nd front electrode layer that each other do not switch on and is greater than the 2nd rear electrode layer with the 2nd rear electrode layer and the 2nd front electrode layer, first and second front electrode layer that are located the homonymy communicate into first minute extraction electrode, and first and second rear electrode layer that are located the homonymy communicate into the second and divide extraction electrode, and the first minute extraction electrode who is located the homonymy divides the extraction electrode series connection to form an extraction electrode with the second. The utility model also discloses a piezoceramics speaker, cell -phone, panel computer by the preparation of twin crystal piezoceramics piece. The utility model has the advantages of twin crystal piezoceramics piece vibration effect is excellent, and thereby the piezoceramics speaker bass tone quality that makes is better.
Description
Technical field
The utility model relates to bimorph piezo electric potsherd, piezoelectric ceramic loudspeaker, mobile phone, panel computer.
Background technology
Piezoelectric ceramic loudspeaker is a kind of electro-acoustic transducer device being realized electricity-mechanical-acoustical conversion by the inverse piezoelectric effect of piezoelectric ceramic piece, is widely used in portable set terminal.Bimorph piezo electric potsherd is a kind of conventional piezoelectric ceramic piece, it is by the contrary monocrystalline piezoelectric potsherd of two polarised directions by low-temperature sintering cofired materials together, when bimorph piezo electric potsherd receives audio voltage signal by its extraction electrode, according to the inverse piezoelectric effect principle of bimorph piezo electric potsherd, can there is vibration and produce sound wave in bimorph piezo electric potsherd.Due to the side end that two extraction electrodes on current used bimorph piezo electric potsherd are surface disposed thereon, the vibrating effect of this bimorph piezo electric potsherd is not very good; The tonequality of the bass of the piezoelectric ceramic loudspeaker prepared by the bimorph piezo electric potsherd of said structure is poor.
Utility model content
It is very excellent thus can improve the bimorph piezo electric potsherd of bass tonequality that an object of the present utility model is to provide a kind of vibrating effect.Another object of the present utility model is to provide the better piezoelectric ceramic loudspeaker of bass tonequality, mobile phone, panel computer prepared by this bimorph piezo electric potsherd of a kind of application.
For realizing above-mentioned first object, the utility model have employed following technical scheme: described bimorph piezo electric potsherd, bimorph piezo electric potsherd is provided with two extraction electrodes as signal input part, the concrete structure of extraction electrode is: be respectively arranged with electrode layer at the upper surface of bimorph piezo electric potsherd and lower surface, the electrode layer being positioned at the upper surface of bimorph piezo electric potsherd is separated into a pair and distributes and the first electrode layer of not conducting mutually in left and right, the area ratio of two the first electrode layers equals 0.9 ~ 1.1, each first electrode layer to be separated in front and back distribution and mutually not conducting first before electrode layer and the first rear electrode layer, the area of the first rear electrode layer in each first electrode layer is greater than the area of electrode layer before first, the electrode layer being positioned at the lower surface of bimorph piezo electric potsherd is separated into a pair and distributes and the second electrode lay of not conducting mutually in left and right, the area ratio of two the second electrode lays equals 0.9 ~ 1.1, each the second electrode lay to be separated in front and back distribution and mutually not conducting second before electrode layer and the second rear electrode layer, before in each the second electrode lay second, the area of electrode layer is greater than the area of the second rear electrode layer, each first electrode layer first before electrode layer be positioned at homonymy the second electrode lay second before electrode layer to be connected formation first point of extraction electrode by conductive layer, first rear electrode layer of each first electrode layer to be connected formation second point of extraction electrode by conductive layer with the second rear electrode layer of the second electrode lay being positioned at homonymy, and the first point of extraction electrode being positioned at homonymy is mutually connected with second point of extraction electrode and formed an extraction electrode of bimorph piezo electric potsherd.
Further, aforesaid bimorph piezo electric potsherd, wherein: before the first rear electrode layer and first in each first electrode layer, the area ratio of electrode layer is (3 ~ 4.5): 1, before in each the second electrode lay second, the area ratio of electrode layer and the second rear electrode layer is (3 ~ 4.5): 1.
Further, aforesaid bimorph piezo electric potsherd, wherein: the gross area being positioned at the electrode layer of bimorph piezo electric potsherd upper surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd upper surface area, the gross area being positioned at the electrode layer of bimorph piezo electric potsherd lower surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd lower surface area.
Further, aforesaid bimorph piezo electric potsherd, wherein: two extraction electrodes are positioned at the same side on the same surface of bimorph piezo electric potsherd.
Further, aforesaid bimorph piezo electric potsherd, wherein: the symmetrical distribution of two the first electrode layers being positioned at the upper surface of bimorph piezo electric potsherd, is positioned at two symmetrical distributions of the second electrode lay of the lower surface of bimorph piezo electric potsherd.
For realizing above-mentioned second object, the utility model have employed following technical scheme: the piezoelectric ceramic loudspeaker prepared by aforesaid bimorph piezo electric potsherd, that is: adopt the bimorph piezo electric potsherd of aforementioned structure as vibration sounding element in described piezoelectric ceramic loudspeaker.
Further, aforesaid piezoelectric ceramic loudspeaker, wherein: the structure of described piezoelectric ceramic loudspeaker is: comprise airtight protecgulum, bimorph piezo electric potsherd is provided with in protecgulum, the front side of bimorph piezo electric potsherd is provided with elasticity vibrating diaphragm, bimorph piezo electric potsherd and elasticity vibrating diaphragm form vibration component jointly, bonnet is provided with in the rear side cover of protecgulum, vibration component is positioned within protecgulum and bonnet, the cavity being beneficial to vibration component vibration is provided with in the centre position of protecgulum, cavity is provided with between bonnet and vibration component, the rear side of vibration component is fixed by the first two-sided rubber cushion and bonnet, the front side of vibration component is fixed by the second two-sided rubber cushion and protecgulum, bimorph piezo electric potsherd has overlayed flexible print wiring board, flexible print wiring board is electrically connected with the extraction electrode of bimorph piezo electric potsherd, flexible print wiring board as piezoelectric ceramic loudspeaker electric signal input end and extend out to outside bonnet.
Further, mobile phone prepared by the piezoelectric ceramic loudspeaker of application of aforementioned or panel computer, wherein: described piezoelectric ceramic loudspeaker is as the microphone device of mobile phone or panel computer, and the protecgulum of piezoelectric ceramic loudspeaker is exactly a part for the back cover of mobile phone or panel computer.
Further, aforesaid mobile phone or panel computer, wherein: the back cover of protecgulum and mobile phone or panel computer is integrally formed form as a whole.
Further, aforesaid mobile phone or panel computer, wherein: protecgulum sealing is fixedly mounted in the installing hole that mobile phone or panel computer back cover are preset and is fixedly linked to be as a whole with back cover.
By the enforcement of technique scheme, the beneficial effects of the utility model are: after accessing to audio voltage signal, the vibrating effect of bimorph piezo electric potsherd is very excellent; The bass tonequality applying piezoelectric ceramic loudspeaker prepared by this bimorph piezo electric potsherd is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of each electrode layer on bimorph piezo electric potsherd upper surface described in the utility model.
Fig. 2 is the structural representation of each electrode layer on the bimorph piezo electric potsherd lower surface shown in Fig. 1.
Fig. 3 is the structural representation of the left apparent direction of Fig. 1.
Fig. 4 is the structural representation of the right apparent direction of Fig. 1.
Fig. 5 is the structural representation of two extraction electrodes indicating bimorph piezo electric potsherd in Fig. 1.
Fig. 6 is the structural representation of a kind of preferred embodiment of the piezoelectric ceramic loudspeaker adopting bimorph piezo electric potsherd described in the utility model to prepare.
Fig. 7 is the structural representation that piezoelectric ceramic loudspeaker described in the utility model is applied to mobile phone or panel computer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, described bimorph piezo electric potsherd, bimorph piezo electric potsherd 1 is provided with two extraction electrodes as signal input part, the concrete structure of extraction electrode is: be respectively arranged with one deck electrode layer at the upper surface of bimorph piezo electric potsherd 1 and lower surface, electrode layer is usually starched by silver and is made, the gross area being positioned at the electrode layer of bimorph piezo electric potsherd upper surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd upper surface area, the gross area being positioned at the electrode layer of bimorph piezo electric potsherd lower surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd lower surface area, the electrode layer being positioned at the upper surface of bimorph piezo electric potsherd 1 is separated into a pair symmetrical distribution by groove 7 and the first electrode layer of not conducting mutually, each first electrode layer to be separated in front and back distribution by groove 7 and mutually not conducting first before electrode layer and the first rear electrode layer, the area of the first rear electrode layer in each first electrode layer is greater than the area of electrode layer before first, before the first rear electrode layer and first in each first electrode layer, the area ratio of electrode layer is (3 ~ 4.5): 1, that is: the electrode layer being positioned at the upper surface of bimorph piezo electric potsherd 1 is separated into symmetrical and electrode layer 4 before electrode layer 3 and right first before a left side first for not conducting mutually by groove 7, and symmetrical and a left side first rear electrode layer 5 of mutually not conducting and right first rear electrode layer 6 totally four electrode layers, before left first, electrode layer 3 and left first rear electrode layer 5 distribute in front and back and are cut off by groove 7 and not conducting mutually, the area of left first rear electrode layer 5 is greater than electrode layer 3 before a left side first, and the area ratio of electrode layer 3 is (3 ~ 4) before the area of left first rear electrode layer 5 and left first: 1, before right first, electrode layer 4 and right first rear electrode layer 6 distribute in front and back and are cut off by groove 7 and not conducting mutually, the area of right first rear electrode layer 6 is greater than electrode layer 4 before the right side first, and the area ratio of electrode layer 4 is (3 ~ 4.5) before the area of right first rear electrode layer 6 and right first: 1, the electrode layer being positioned at the lower surface of bimorph piezo electric potsherd 1 is separated into a pair symmetrical and the second electrode lay of not conducting mutually by groove 71, each the second electrode lay to be separated in front and back distribution by groove 71 and mutually not conducting second before electrode layer and the second rear electrode layer, before in each the second electrode lay second, the area of electrode layer is greater than the area of the second rear electrode layer, before in each the second electrode lay second, the area ratio of electrode layer and the second rear electrode layer is (3 ~ 4.5): 1, that is: the electrode layer being positioned at the lower surface of bimorph piezo electric potsherd 1 is separated into symmetrical and electrode layer 10 before electrode layer 9 and right second before a left side second for not conducting mutually by groove 71, and symmetrical and a left side second rear electrode layer 11 of mutually not conducting and right second rear electrode layer 12 totally four electrode layers, before left second, electrode layer 9 and left second rear electrode layer 11 distribute in front and back and are cut off by groove 71 and not conducting mutually, before left second, the area of electrode layer 9 is greater than left second rear electrode layer 11, and electrode layer 9 is (3 ~ 4.5) with the area ratio of left second rear electrode layer 11 before left second: 1, before right second, electrode layer 10 and right second rear electrode layer 12 distribute in front and back and are cut off by groove 71 and not conducting mutually, before right second, the area of electrode layer 10 is greater than right second rear electrode layer 12, and electrode layer 10 is (3 ~ 4.5) with the area ratio of right second rear electrode layer 12 before right second: 1, before in each first electrode layer first electrode layer be arranged in homonymy the second electrode lay second before electrode layer starch conductive layer by silver and to be connected formation first point of extraction electrode, the first rear electrode layer in each first electrode layer is starched conductive layer with the second rear electrode layer of the second electrode lay being arranged in homonymy by silver and to be connected formation second point of extraction electrode, the first point of extraction electrode being positioned at homonymy is mutually connected with second point of extraction electrode and is formed an extraction electrode of bimorph piezo electric potsherd, that is: before being located on the left side first in left side, electrode layer 3 and electrode layer 9 before left second are starched conductive layer 131 by silver and are connected and form the first point of extraction electrode in a left side, a left side first rear electrode layer 5 being located on left side and left second rear electrode layer 11 are starched conductive layer 132 by silver and are connected and form the second point of extraction electrode in a left side, left first point of extraction electrode is mutually connected with left second point of extraction electrode and is formed an extraction electrode 211 of bimorph piezo electric potsherd, before being located on the right side first on right side, electrode layer 4 and electrode layer 10 before right second are starched conductive layer 133 by silver and are connected and form the first point of extraction electrode in the right side, the right side first rear electrode layer 6 being located on right side and right second rear electrode layer 12 starchs conductive layer 134 by silver and are connected and form the second point of extraction electrode in the right side, and first point, right side extraction electrode and the right side second point of extraction electrode is mutually connected and formed another extraction electrode 212 of bimorph piezo electric potsherd, owing to extraction electrode to be covered the overwhelming majority on the whole upper and lower surface of bimorph piezo electric potsherd, after adopting above-mentioned extraction electrode arrangement, considerably increase the area of the extraction electrode of bimorph piezo electric potsherd, and then considerably increase the vibrating effect of bimorph piezo electric potsherd 1, in the present embodiment, two extraction electrodes 211,212 are positioned at the same side on the same surface of bimorph piezo electric potsherd 1, and this extraction electrode distribution mode is more conducive to the installation of the flexible print wiring board for the bimorph piezo electric potsherd conveying signal of telecommunication, in the present embodiment, described each silver slurry conductive layer 131,132,133,134 is positioned at the side of bimorph piezo electric potsherd 1 respectively, and this distribution mode is convenient to arrange extraction electrode more,
As shown in Figure 6, it is a preferred embodiment of the piezoelectric ceramic loudspeaker prepared by bimorph piezo electric potsherd described in the utility model, comprise airtight protecgulum 14, bimorph piezo electric potsherd 1 is provided with in protecgulum 14, the front side of bimorph piezo electric potsherd 1 is provided with elasticity vibrating diaphragm 15, bimorph piezo electric potsherd 1 and elasticity vibrating diaphragm 15 form vibration component jointly, bonnet 16 is provided with in the rear side cover of protecgulum 14, vibration component is positioned within protecgulum 14 and bonnet 16, the cavity 17 being beneficial to vibration component vibration is provided with in the centre position of protecgulum 14, cavity 18 is provided with between bonnet 16 and vibration component, the rear side of vibration component is fixed with bonnet 16 by the first two-sided rubber cushion 19, the front side of vibration component is fixed with protecgulum 14 by the second two-sided rubber cushion 20, bimorph piezo electric potsherd 1 has overlayed flexible print wiring board 21, flexible print wiring board 21 is electrically connected with the extraction electrode of bimorph piezo electric potsherd 1, flexible print wiring board 21 as piezoelectric ceramic loudspeaker electric signal input end and extend out to outside bonnet 16.
As shown in Figure 7, be the structural representation that piezoelectric ceramic loudspeaker described in the utility model is applied in mobile phone or panel computer, that is: in mobile phone or panel computer, adopt piezoelectric ceramic loudspeaker described in the utility model as microphone device; In actual applications, the protecgulum 14 of described piezoelectric ceramic loudspeaker is exactly a part for the back cover 8 of mobile phone or panel computer, that is: protecgulum 14 can form as a whole with the back cover 8 of mobile phone or panel computer is integrally formed, also protecgulum 14 sealing can be fixedly mounted in the installing hole that mobile phone or panel computer back cover 8 are preset and fixedly be linked to be as a whole with back cover 8.
When the flexible print wiring board 21 on piezoelectric ceramic loudspeaker receives audio voltage signal, after bimorph piezo electric potsherd 1 produces vibration, Timing Belt dynamic elasticity vibrating diaphragm 15 vibrates, thus drive the whole back cover 8 of air and mobile phone or panel computer vibrate and sound, and, when the back cover 8 of mobile phone or panel computer is positioned on the objects such as desktop, the objects such as desktop can vibrate together along with back cover 8 and produce better acoustics.Owing to have employed the bimorph piezo electric potsherd 1 of extraction electrode arrangement described in the utility model, substantially increase the bass tonequality of piezoelectric ceramic loudspeaker, make the range of piezoelectric ceramic loudspeaker more broad full.
Claims (13)
1. bimorph piezo electric potsherd, bimorph piezo electric potsherd is provided with two extraction electrodes as signal input part, it is characterized in that: the concrete structure of extraction electrode is: be respectively arranged with electrode layer at the upper surface of bimorph piezo electric potsherd and lower surface, the electrode layer being positioned at the upper surface of bimorph piezo electric potsherd is separated into a pair and distributes and the first electrode layer of not conducting mutually in left and right, the area ratio of two the first electrode layers equals 0.9 ~ 1.1, each first electrode layer to be separated in front and back distribution and mutually not conducting first before electrode layer and the first rear electrode layer, the area of the first rear electrode layer in each first electrode layer is greater than the area of electrode layer before first, the electrode layer being positioned at the lower surface of bimorph piezo electric potsherd is separated into a pair and distributes and the second electrode lay of not conducting mutually in left and right, the area ratio of two the second electrode lays equals 0.9 ~ 1.1, each the second electrode lay to be separated in front and back distribution and mutually not conducting second before electrode layer and the second rear electrode layer, before in each the second electrode lay second, the area of electrode layer is greater than the area of the second rear electrode layer, each first electrode layer first before electrode layer be positioned at homonymy the second electrode lay second before electrode layer to be connected formation first point of extraction electrode by conductive layer, first rear electrode layer of each first electrode layer to be connected formation second point of extraction electrode by conductive layer with the second rear electrode layer of the second electrode lay being positioned at homonymy, and the first point of extraction electrode being positioned at homonymy is mutually connected with second point of extraction electrode and formed an extraction electrode of bimorph piezo electric potsherd.
2. bimorph piezo electric potsherd according to claim 1, it is characterized in that: before the first rear electrode layer and first in each first electrode layer, the area ratio of electrode layer is (3 ~ 4.5): 1, and before in each the second electrode lay second, the area ratio of electrode layer and the second rear electrode layer is (3 ~ 4.5): 1.
3. bimorph piezo electric potsherd according to claim 1, it is characterized in that: the gross area being positioned at the electrode layer of bimorph piezo electric potsherd upper surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd upper surface area, the gross area being positioned at the electrode layer of bimorph piezo electric potsherd lower surface accounts for (90 ~ 98) % of bimorph piezo electric potsherd lower surface area.
4. bimorph piezo electric potsherd according to claim 1, is characterized in that: two extraction electrodes are positioned at the same side on the same surface of bimorph piezo electric potsherd.
5. bimorph piezo electric potsherd according to claim 1, it is characterized in that: the symmetrical distribution of two the first electrode layers being positioned at the upper surface of bimorph piezo electric potsherd, be positioned at two symmetrical distributions of the second electrode lay of the lower surface of bimorph piezo electric potsherd.
6. a piezoelectric ceramic loudspeaker, is characterized in that: comprise claim 1 or 2 or 3 or the bimorph piezo electric potsherd described in 4 or 5.
7. a kind of piezoelectric ceramic loudspeaker according to claim 6, it is characterized in that: the structure of described piezoelectric ceramic loudspeaker is: comprise airtight protecgulum, bimorph piezo electric potsherd is provided with in protecgulum, the front side of bimorph piezo electric potsherd is provided with elasticity vibrating diaphragm, bimorph piezo electric potsherd and elasticity vibrating diaphragm form vibration component jointly, bonnet is provided with in the rear side cover of protecgulum, vibration component is positioned within protecgulum and bonnet, the cavity being beneficial to vibration component vibration is provided with in the centre position of protecgulum, cavity is provided with between bonnet and vibration component, the rear side of vibration component is fixed by the first two-sided rubber cushion and bonnet, the front side of vibration component is fixed by the second two-sided rubber cushion and protecgulum, bimorph piezo electric potsherd has overlayed flexible print wiring board, flexible print wiring board is electrically connected with the extraction electrode of bimorph piezo electric potsherd, flexible print wiring board as piezoelectric ceramic loudspeaker electric signal input end and extend out to outside bonnet.
8. a mobile phone, is characterized in that: comprise the piezoelectric ceramic loudspeaker described in claim 6 or 7, and described piezoelectric ceramic loudspeaker is as the microphone device of mobile phone, and the protecgulum of piezoelectric ceramic loudspeaker is exactly a part for the back cover of mobile phone.
9. a kind of mobile phone according to claim 8, is characterized in that: the back cover of protecgulum and mobile phone is integrally formed form as a whole.
10. a kind of mobile phone according to claim 8, is characterized in that: protecgulum sealing is fixedly mounted in the installing hole that mobile phone battery cover is preset and is fixedly linked to be as a whole with back cover.
11. 1 kinds of panel computers, it is characterized in that: comprise the piezoelectric ceramic loudspeaker described in claim 6 or 7, described piezoelectric ceramic loudspeaker is as the microphone device of panel computer, and the protecgulum of piezoelectric ceramic loudspeaker is exactly a part for the back cover of panel computer.
12. a kind of panel computers according to claim 11, is characterized in that: the back cover of protecgulum and panel computer is integrally formed form as a whole.
13. a kind of panel computers according to claim 11, is characterized in that: protecgulum sealing is fixedly mounted in the installing hole that panel computer back cover is preset and is fixedly linked to be as a whole with back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182013.5U CN204795586U (en) | 2015-03-30 | 2015-03-30 | Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182013.5U CN204795586U (en) | 2015-03-30 | 2015-03-30 | Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795586U true CN204795586U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520182013.5U Withdrawn - After Issue CN204795586U (en) | 2015-03-30 | 2015-03-30 | Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204795586U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796829A (en) * | 2015-03-30 | 2015-07-22 | 张家港市玉同电子科技有限公司 | Double-crystal piezoelectric ceramic piece and application thereof |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
-
2015
- 2015-03-30 CN CN201520182013.5U patent/CN204795586U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796829A (en) * | 2015-03-30 | 2015-07-22 | 张家港市玉同电子科技有限公司 | Double-crystal piezoelectric ceramic piece and application thereof |
| CN104796829B (en) * | 2015-03-30 | 2017-10-27 | 张家港市玉同电子科技有限公司 | Bimorph piezo electric potsherd and its application |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171027 |
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| AV01 | Patent right actively abandoned |