CN206458927U - Fuel pipe and fuel rail assembly - Google Patents
Fuel pipe and fuel rail assembly Download PDFInfo
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- CN206458927U CN206458927U CN201621402975.8U CN201621402975U CN206458927U CN 206458927 U CN206458927 U CN 206458927U CN 201621402975 U CN201621402975 U CN 201621402975U CN 206458927 U CN206458927 U CN 206458927U
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- fuel pipe
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Abstract
The utility model provides fuel pipe and fuel rail assembly, in the utility model fuel pipe, using be resistant to fuel oil environment and with good barrier properties can CPT material layers as fuel oil inner tube layer so that the utility model fuel pipe has good low leaching and osmotic-pressure-tolerant energy；Meanwhile, in the utility model, using nylon as cladding material, it can also effectively improve the mechanical performance and pliability of pipeline.Meanwhile, in the utility model fuel rail assembly, using the utility model pipeline as fuel pipe, it is thus possible to effectively obstruct fuel oil, and reduce by the brought pollution of infiltration discharge.
Description
Technical field
The utility model is related to vehicle fuel pipe field, in particular to fuel pipe and fuel rail assembly.
Background technology
Rubber tube of automobile fuel oil includes fuel oil petroleum pipeline and the fuel pipe of fuel is supplied to engine, is important safety
Part, thus, it is also higher to the performance requirement of fuel hose material.In general, rubber tube of automobile fuel oil hose lining will select resistance to combustion
Expect medium and heat-resist material；Outer layer glue will then select heat-resisting, resistance to ozone, resistance to ambient influnence and the adhesiveness with hose lining
The good material of energy.
With the development and increasingly harsh environmental requirement of auto industry, automotive light weight technology, miniaturization, low emission turn into vapour
The main flow of garage's industry.Multilayer nylon fuel pipe is route in low a little with light weight, the small, cost of infiltration, now extensive
Applied in automobile industry.
As " appearance of the policy of state six " and the development of the mixed electrical automobile of oil electricity, the discharge for automobile exhaust contaminant are limited
Value is also stricter.
The discharge of automobile exhaust contaminant is carried out typically by exhaust emissions and evaporating-osmosis discharge two ways, although
Pollutant is mainly discharged into air by automobile exhaust pipe in the form of tail gas, but still has the HC close to 45% and pole
Other a small amount of pollutants are discharged by crankcase and fuel system by evaporating-osmosis.Fuel system includes fuel tank, fuel oil glue
System and fuel evaporation pollutant control system that pipe, fuel filter, fuel pump, carburetor or gasoline injecting-unit are constituted,
Including all open to atmosphere openings in 2 systems.In order to which the evaporating-osmosis for effectively reducing pollutant is discharged, it is necessary to reduce fuel oil
Oozed out from the evaporation of fuel hose intermediate fuel oil, so as to reach the purpose of safety, energy-conservation and environmental protection.And this also causes automobile industry to enter
One step proposes the requirement of lower precipitation and more hyposmosis to fuel pipe again.
Existing multilayer nylon fuel pipe road is more using PA12 or PA6 as internal layer, due to nylon material long-time and fuel oil
Contact has oligomer precipitation, and easily causing long-time parked car can not be again started up because atomizer blocks, so this kind of
Nylon can not meet the performance requirement of low precipitation as the fuel pipe of internal layer.Meanwhile, made with single EVOH or ETFE
The permeation requirements of the different fuel oils such as CE10, CE15, CE85, CM15 also can not have been met for barrier layer automobile fuel oil pipeline.
In view of this, it is special to propose the utility model.
Utility model content
First purpose of the present utility model is to provide in a kind of fuel pipe, the utility model fuel pipe, to be resistant to
Fuel oil environment and good barrier properties can CPT material layers be fuel oil inner tube layer so that the utility model fuel pipe have it is good
Good low leaching and osmotic-pressure-tolerant energy；Meanwhile, in the utility model, using nylon as cladding material, it can also effectively improve pipeline
Pliability.
Second purpose of the present utility model is to provide in a kind of fuel rail assembly, the utility model fuel rail assembly, with
The utility model pipeline is fuel pipe, it is thus possible to effectively obstructs fuel oil, and reduces by the brought pollution of infiltration discharge.
In order to realize above-mentioned purpose of the present utility model, spy uses following technical scheme：
A kind of fuel pipe, the fuel pipe includes internal layer and outer layer successively from the inside to the outside；
Wherein, the internal layer is CPT material layers；
The outer layer is PA6, PA12 or PA612 material layer.
Optionally, in the utility model, the outer layer is PA12 material layers.
Optionally, in the utility model, the thickness of the internal layer is 0.01~0.15mm；The thickness of the outer layer is 0.45
~0.99mm.
Optionally, in the utility model, the CPT material layers are conduction CPT material layers.
Optionally, in the utility model, it is viscous that the fuel pipe still further comprises the first tack coat, barrier layer and second
Tie layer.
Wherein, the internal layer, the first tack coat, barrier layer, the second tack coat and outer layer are to be coaxially disposed, and successively
Mutually bond.
Optionally, in the utility model, the thickness of the internal layer is 0.01~0.15mm, and the thickness of the outer layer is 0.45
~0.90mm.
Optionally, in the utility model, the thickness of the barrier layer is 0.1~0.2mm.
Optionally, in the utility model, the barrier layer is EVOH material blocks layer.
Optionally, in the utility model, the CPT material layers are conduction CPT material layers.
A kind of fuel rail assembly, the fuel rail assembly includes fuel pipe described in the utility model.
Compared with prior art, the beneficial effects of the utility model are：
(1) in the utility model, by using CPT as fuel pipe inner layer material, being separated out so as to effectively barrier fuel oil；Together
When, in the utility model, by further increasing EVOH barrier layer, so as to form double barrier layers with CPT material layers, so that
Barrier is further improved, also causes the utility model fuel pipe that there is lower permeability；
(2) in the utility model, by using nylon materials such as PA6, PA12 or PA612 as cladding material, and further
Regulate and control the thickness of nylon cladding material, so as to while pipeline endothecium structure is protected, additionally it is possible to improve the flexible of pipeline
Property；
(3) in the utility model, by the selection and adjustment to different layer thickness in fuel pipe, so that this reality
Both there is good pliability with novel fuel pipe, while also there is good barrier and low precipitation performance, and suitable for vapour
Oil/Gas Pipe and fuel pipe in car fuel system.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The fuel pipe that Fig. 1 is provided by the scheme of embodiment in the utility model 1；
The fuel pipe that Fig. 2 is provided by the scheme of embodiment in the utility model 2；
Wherein, 1- internal layers, 2- outer layers；
1'- internal layers, the tack coats of 2'- first, 3'- barrier layers, the tack coats of 4'- second, 5'- outer layers.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with embodiment, but those skilled in the art
It will be understood that, the following example is merely to illustrate the utility model, and is not construed as limiting scope of the present utility model.Embodiment
In unreceipted actual conditions person, the condition advised according to normal condition or manufacturer carries out.Agents useful for same or the unreceipted life of instrument
Manufacturer person is produced, is the conventional products that can be obtained by commercially available purchase.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Conventional nylon fuel pipe is more using PA6 or PA12 as inner layer material, however, due to PA6 and PA12 chemical resistance
And barrier property is poor, thus, traditional nylon fuel pipe is used and substantial amounts of low in after fuel contacts, having in long-time
Polymers is separated out.And this is either for vehicle driving safety, also from the angle of environmental protection for, be all to be unsatisfactory for being actually needed
's.
In the utility model, special is inner layer material layer with CPT materials.It is that a class is special as the CPT materials of inner layer material
The tetrafluoroethylene-hexafluoro-propylene copolymer being very modified.Because CPT materials have excellent chemical resistance, it is possible to be used as combustion
Oil pipe internal layer is directly contacted with fuel oil, even if contact fuel oil for a long time, there will not be obvious precipitation.Meanwhile, CPT materials also have
There is excellent resistance to barrier property, therefore the performance requirement of the low precipitation of fuel pipe and more hypotonicity energy can be met.
As cladding material, the utility model can be using nylon materials such as PA6, PA12 or PA612 as cladding material；It is excellent
Choosing, in the utility model, cladding material used is PA12；
Nylon material has good mechanical strength, can be good at protecting pipeline structure, and improves the intensity of pipeline, from
And it is damaged without occurring to ensure that pipeline can be used for a long time.
Optionally, fuel pipe provided by the utility model can be double-decker, i.e., be followed successively by internal layer CPT from the inside to the outside
Material layer and outer layer PA612 material layers；
This fuel pipe had both had CPT materials good barrier and hypotonicity, also had PA12 materials preferably mechanical
Performance.
The thickness of double-deck fuel pipe can be 0.5~1mm, for example can be, but be not limited to 0.6,0.7,0.8,0.9 or
1mm；It is preferred that, the thickness of double-deck fuel pipe is 0.8~1mm；
Wherein, internal layer CPT layer thickness is 0.01~0.15mm, for example, can be, but be not limited to 0.02,0.03,
0.04th, 0.05,0.06,0.07,0.08,0.09,0.10,0.11,0.12,0.13 or 0.14mm etc.；
The thickness of outer layer PA12 material layers is 0.45~0.99mm, for example, can be, but be not limited to 0.48,0.50,0.52,
0.55th, 0.58,0.60,0.65,0.68,0.70,0.75,0.80,0.85,0.90 or 0.95mm etc..
It is preferred that, in double-deck fuel pipe provided by the utility model, the thickness of CPT material inner layers is that double-deck fuel pipe is total
The 1~15% of thickness, for example can be, but be not limited to 2,3,5,8,10,12 or 14% etc.；The thickness of PA12 material outer layers is
The 85~99% of double-deck fuel oil tube thickness, for example can be, but be not limited to 86,88,90,93 or 95% etc..
So that double-deck fuel oil tube thickness is 1mm as an example, it is preferred that the thickness of CPT material inner layers is 0.01~0.15mm, and
The thickness of PA12 material outer layers is 0.85~0.99mm.
Fuel pipe with thick-walled structure not only has good mechanical performance；Simultaneously as the hardness of CPT materials compared with
Greatly, on the basis of ensureing that pipeline has enough barrier properties and low precipitation performance, the wall thickness of appropriate increase pipeline also can
Improve the pliability and low temperature resistivity energy of pipeline.
Further, fuel oil during quick flowing, easily produces electrostatic charge in pipeline with pipeline inner wall friction, with
The accumulation of time, electrostatic charge is easy for vehicle body closest approach or point discharge, and produce spark, abnormal sound, automobile is caused
Potential safety hazard.In the utility model, by further setting the conductive CPT material inner layers of conductive energy (that is, in fuel pipe
The material of layer is the CPT materials of conductive energy), so as to realize effective release electrostatic, and improve running car
Security performance.Preferably, conductive CPT layers of the present invention are CPT material layers that the trade mark is L-1000AS.
Double-decker fuel pipe provided in the utility model can be prepared by the following method：By CPT internal layer materials
Material and PA12 cladding materials obtain the fuel pipe of the utility model double-decker by disposable extrusion molding.
Likewise, fuel pipe provided by the utility model can be sandwich construction, i.e., with the tack coat of CPT internal layers-the first-
The tack coat of barrier layer-the second-nylon (PA6, PA12 or PA612) outer layer bonds the 5 Rotating fields fuel pipes formed successively；
In 5 Rotating fields fuel pipe provided by the utility model, hindered by being added on the basis of double-decker fuel pipe
Interlayer, and double barrier Rotating fields of CPT and EVOH barrier layer are formed, so as to further improve the barrier property of fuel pipe,
And cause fuel pipe that there is lower permeability.Meanwhile, the setting of the first adhesive layer and the second adhesive layer also causes this practicality new
Type fuel pipe has more preferable structural integrity.
The thickness of 5 layers of fuel pipe can be 0.6~1.2mm, for example can be, but be not limited to 0.7,0.8,0.9,1.0 or
Person 1.1mm etc.；It is preferred that, the thickness of 5 layers of fuel pipe is 0.8~1.0mm；
Wherein, the thickness of the internal layer is 0.01~0.15mm, for example, can be, but be not limited to 0.02,0.03,0.04,
0.05th, 0.06,0.07,0.08,0.09,0.10,0.11,0.12,0.13 or 0.14mm etc.；
The thickness of the outer layer is 0.45~0.90mm；For example can be, but be not limited to 0.48,0.50,0.52,0.55,
0.58th, 0.60,0.63,0.65,0.68,0.70,0.75,0.80 or 0.85mm etc.；
The thickness of the barrier layer is 0.1~0.2mm, for example, can be, but be not limited to 0.11,0.12,0.13,0.15,
0.18 or 0.19mm etc..
The thickness of first adhesive layer and the second adhesive layer can be with identical or difference；It is preferred that, first bonding
Layer is identical with the thickness of the second adhesive layer；
The thickness of first adhesive layer is 0.01~0.1mm, for example, can be, but be not limited to 0.02,0.04,0.05,0.07,
0.09mm etc.；
The thickness of second adhesive layer is 0.01~0.1mm, for example, can be, but be not limited to 0.02,0.04,0.05,0.07,
0.09mm etc..
It is further preferred that in 5 layers of fuel pipe provided by the utility model, the thickness of CPT material inner layers is 5 layers of fuel oil
The 1~15% of pipe gross thickness, for example can be, but be not limited to 3,5,7,10 or 12% etc.；
EVOH barrier layer thickness is the 10~20% of 5 layers of fuel pipe gross thickness, for example, can be, but be not limited to 12,15,17
Or 19% etc.；
The thickness of PA12 material outer layers is the 45~88% of 5 layers of fuel oil tube thickness；For example can be, but be not limited to 48,50,
55th, 60,65,70,75,80 or 85% etc.；
Remaining thickness structure of 5 layers of fuel pipe is filled by the first tack coat and the second tack coat, and the first tack coat and the
The thickness of two tack coats is identical.
The selection of each thickness degree in 5 layers of fuel pipe of the utility model, particularly to the limitation of CPT material inner layer thickness with
And the setting of high thickness outer layer, good pliability and low temperature resistivity energy had also both been needed for pipeline, had been also required to simultaneously
The consideration of good resistance to barrier property and low precipitation performance.
Likewise, in order to avoid pipeline inner wall and fuel oil friction produce electrostatic charge, 5 layers of fuel pipe of the utility model equally may be used
Using further set it is conductive can conductive CPT material inner layers (that is, the material of fuel oil inner tube layer for it is conductive energy
CPT materials), so as to realize effective release electrostatic, and improve the security performance of running car.Preferably, conduction of the present invention
CPT layers are CPT material layers that the trade mark is L-1000AS.
5 Rotating fields fuel pipes provided in the utility model can be prepared by the following method：By CPT internal layer materials
Material, the first tack coat, EVOH barrier layer material, the second tack coat and PA12 cladding materials are by disposable extrusion molding, i.e.,
Obtain the fuel pipe of the Rotating fields of the utility model 5.
Embodiment 1
Fig. 1 is refer to, in a scheme provided by the utility model, the fuel pipe is double-deck fuel pipe, and by
It is interior to outside successively include internal layer 1 and outer layer 2；
Wherein, the internal layer 1 is CPT material layers, and the outer layer 2 is PA6, PA12 or PA612 material layer.
Fig. 1 is refer to, in another scheme provided by the utility model, the fuel pipe is double-deck fuel pipe, and
Include internal layer 1 and outer layer 2 successively from the inside to the outside；
Wherein, the internal layer 1 is CPT material layers, and the outer layer 2 is PA12 material layers；
Further, the thickness of internal layer 1 is 0.01~0.15mm, and the thickness of outer layer 2 is 0.85~0.99mm.
Embodiment 2
Fig. 2 is refer to, in another scheme provided by the utility model, the fuel pipe is 5 layers of fuel pipe, described
Fuel pipe is followed successively by internal layer 1', the first tack coat 2', barrier layer 3', the second tack coat 4' and outer layer 5' from the inside to the outside；
Wherein, internal layer 1' is CPT material layers, and outer layer 5' is PA6, PA12 or PA612 material layer.
Fig. 2 is refer to, in a preferred scheme provided by the utility model, the fuel pipe is 5 layers of fuel pipe,
The fuel pipe is followed successively by internal layer 1', the first tack coat 2', barrier layer 3', the second tack coat 4' and outer layer 5' from the inside to the outside；
Wherein, internal layer 1' is CPT material layers, and barrier layer 3' is EVOH material layers, and outer layer 5' is PA12 material layers；
Wherein, internal layer 1' thickness is 0.01~0.15mm, and barrier layer 3' thickness is 0.1~0.2mm, outer layer 5' thickness
Spend for 0.45~0.90mm；
First tack coat 2' and the second tack coat 4' thickness can with identical or difference, and independently for 0.01~
0.10mm。
Experimental example 1
According to the method for an extrusion molding, prepare fuel pipe as depicted in figs. 1 and 2 respectively, the fuel pipe it is straight
Footpath is 8mm, and is designated as embodiment 1 and embodiment 2 respectively；
Wherein, the fuel pipe of embodiment 1 is double-deck fuel pipe, and the thickness of internal layer 1 is 0.10mm, and the thickness of outer layer 2 is
0.90mm；
The fuel pipe of embodiment 2 is 5 layers of fuel pipe, and internal layer 1' thickness is 0.10mm, and the first tack coat 2' thickness is
0.05mm, barrier layer 3' thickness are 0.10mm, and the second tack coat 4' thickness is 0.05mm, and outer layer 5' thickness is
0.70mm。
Meanwhile, also according to the method for an extrusion molding, a diameter of 8mm is prepared, and structure is respectively interior from the inside to the outside
Layer PA12, the first tack coat, barrier layer EVOH, the second tack coat and outer layer PA12 fuel pipe, are designated as comparative example 1；
The thickness that the thickness of each Rotating fields is respectively PA12 layers of internal layer from the inside to the outside in the fuel pipe of comparative example 1 is 0.10mm,
The thickness of first tack coat is 0.05mm, and the thickness of EVOH barrier layer is 0.10mm, and the thickness of the second tack coat is 0.05mm, outside
The thickness of PA12 layers of layer is 0.70mm.
Likewise, according to the method also according to an extrusion molding, a diameter of 8mm is prepared, and structure is divided from the inside to the outside
Not Wei internal layer PA6, barrier layer ETFE, intermediate layer PA6, tack coat and outer layer PA12 fuel pipe, be designated as comparative example 2；
The thickness that the thickness of each Rotating fields is respectively PA6 layers of internal layer from the inside to the outside in the fuel pipe of comparative example 2 is 0.10mm, resistance
Interlayer ETFE thickness is 0.10mm, and intermediate layer PA6 thickness is 0.10mm, and the thickness of tack coat is 0.05mm, outer layer PA12
The thickness of layer is 0.65mm.
Respectively the fuel pipe of embodiment 1,2 and comparative example 1,2 is carried out separating out performance and permeance property is tested, as a result
As shown in table 1 below, table 2：
The embodiment 1,2 of table 1 and comparative example 1,2 fuel pipes separate out performance comparison
The embodiment 1,2 of table 2 and comparative example 1, the contrast of 2 fuel pipe permeance properties
From above-mentioned test result, the double barrier fuel pipes of the utility model CPT/EVOH and CPT it is mono- obstruct compared to
For existing EVOH and ETFE single barrier nylon fuel pipe road, either have ten still in permeability in barrier
Divide significant improve；
Meanwhile, the fuel pipe that the utility model was provided is very excellent for various types of fuel oil barrier property
It is different, with good universality.
Although illustrate and describing the utility model with specific embodiment, but it will be appreciated that without departing substantially from this reality
Many other changes and modification can be made with the case of new spirit and scope.It is, therefore, intended that in appended power
Profit requires to include belonging to all such changes and modifications in the range of the utility model.
Claims (10)
1. a kind of fuel pipe, it is characterised in that the fuel pipe includes internal layer and outer layer successively from the inside to the outside；
Wherein, the internal layer is CPT material layers；
The outer layer is PA6, PA12 or PA612 material layer.
2. fuel pipe according to claim 1, it is characterised in that the outer layer is PA12 material layers.
3. fuel pipe according to claim 1, it is characterised in that the thickness of the internal layer is 0.01~0.15mm；It is described
The thickness of outer layer is 0.45~0.99mm.
4. fuel pipe according to claim 1, it is characterised in that the CPT material layers are conduction CPT material layers.
5. fuel pipe according to claim 1, it is characterised in that the fuel pipe still further comprise the first tack coat,
Barrier layer and the second tack coat；
Wherein internal layer, the first tack coat, barrier layer, the second tack coat and outer layer are to be coaxially disposed, and are mutually bonded successively.
6. fuel pipe according to claim 5, it is characterised in that the thickness of the internal layer is 0.01~0.15mm, described
The thickness of outer layer is 0.45~0.90mm.
7. fuel pipe according to claim 6, it is characterised in that the thickness of the barrier layer is 0.1~0.2mm.
8. fuel pipe according to claim 5, it is characterised in that the barrier layer is EVOH material blocks layer.
9. fuel pipe according to claim 5, it is characterised in that the CPT material layers are conduction CPT material layers.
10. a kind of fuel rail assembly, it is characterised in that the fuel rail assembly is included any one of claim 1-9
Fuel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402975.8U CN206458927U (en) | 2016-12-20 | 2016-12-20 | Fuel pipe and fuel rail assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402975.8U CN206458927U (en) | 2016-12-20 | 2016-12-20 | Fuel pipe and fuel rail assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458927U true CN206458927U (en) | 2017-09-01 |
Family
ID=59696669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402975.8U Expired - Fee Related CN206458927U (en) | 2016-12-20 | 2016-12-20 | Fuel pipe and fuel rail assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936306A (en) * | 2018-03-19 | 2020-11-13 | 美国圣戈班性能塑料公司 | Multilayer tubing for fuel transfer applications |
-
2016
- 2016-12-20 CN CN201621402975.8U patent/CN206458927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936306A (en) * | 2018-03-19 | 2020-11-13 | 美国圣戈班性能塑料公司 | Multilayer tubing for fuel transfer applications |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300457 No. 1703, Ge Wan Road, Zhong Tang Industrial Zone, Binhai New Area, Tianjin Patentee after: Tianjin Peng Ling group Limited by Share Ltd Address before: 300457 No. 1703, Ge Wan Road, Zhong Tang Industrial Zone, Binhai New Area, Tianjin Patentee before: Tianjin Pengling Rubber Tube Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 Termination date: 20181220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |