CN1976174A - Gear-driven step motor and communication device using same - Google Patents
Gear-driven step motor and communication device using same Download PDFInfo
- Publication number
- CN1976174A CN1976174A CNA2006101639427A CN200610163942A CN1976174A CN 1976174 A CN1976174 A CN 1976174A CN A2006101639427 A CNA2006101639427 A CN A2006101639427A CN 200610163942 A CN200610163942 A CN 200610163942A CN 1976174 A CN1976174 A CN 1976174A
- Authority
- CN
- China
- Prior art keywords
- stepping motor
- planetary gear
- reduction portion
- gear
- gear speed
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims description 10
- 238000010295 mobile communication Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 description 10
- 238000012856 packing Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001153 fluoro group Chemical class F* 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
- Pivots And Pivotal Connections (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention can process accurate rotary angle control by using step motor portion without using rotary angle sensors such as a photoelectric sensor, and so on. Into the bargain, miniaturization is realized to save space by parallelly providing the step motor portion and planet gear decelerating portion in the frame body, to accelerate the miniaturization of the mobile communication device. In addition, the first spur gear provided on the rotation axis of the step motor portion, and the second spur gear provided on the planet gear decelerating portion is connected by the decelerating secondary spur gear, thus parts except the planet gear decelerating portion is capaple of decelerating, reducing the decelerating series and the decelerating ratio in the planet gear decelerating portion, and realizing the miniaturization.
Description
Technical field
The present invention relates to a kind of being used for to mobile communications device, especially with camera mobile phone and PDA (personal digital assistant: small-sized gear drive stepping motor that electronic hinge Personal Digital Assistance) or camera rotating part drive and the communication equipment that uses this motor.
Background technology
All the time, the gearmotor as the camera rotating part that is used for rotating band camera mobile phone has the Japan Patent spy to open the disclosed device of 2004-320782 communique.In the gearmotor that this communique is put down in writing, in DC motor portion, connect planetary gear, the driving shaft of motor part is configured on the same straight line with the output shaft that stretches out from housing.Thus, constitute elongated gearmotor.And in order to rotate the camera rotating part with hand, the camera rotating part directly is not connected with the output shaft of gearmotor, but is connected by hemispheric recess and protuberance are chimeric.Therefore, make camera rotating part when rotation by electronic, the camera rotating part rotates under hemispheric concavo-convex chimeric state.And when rotating the camera rotating part, protuberance is embedded in the adjacent recess successively, thereby one grade one grade ground of camera rotating part can be rotated with hand.
Patent documentation 1: the Japan Patent spy opens the 2004-320782 communique
Patent documentation 2: the Japan Patent spy opens the 2004-194267 communique
But, need additional sensor and torque limiter with when making the camera rotating part arbitrarily angled stopping by above-mentioned DC motor portion, be used to detect the anglec of rotation of motor part, the result causes gearmotor to maximize.Therefore, can hinder like this and save the space, unfavorable concerning the mobile communication equipment that requires miniaturization etc.Moreover, because the driving shaft of motor part is configured on the same straight line with the output shaft that stretches out from housing,, wanting to make mobile communication equipment become obstacle when especially the width dimensions of mobile phone shortens so gearmotor self is elongated.
Summary of the invention
The present invention relates to a kind of realize miniaturization and can save the space, can promote predetermined equipment of packing into miniaturization the gear drive stepping motor and use the communication equipment of this motor.
Gear drive stepping motor of the present invention is characterized in that, comprising: rotating shaft is with the stepping motor portion of predetermined angular stepping; Planetary gear speed-reduction portion with rotation that the rotation with respect to the rotating shaft of stepping motor portion is set up in parallel; Connect first spur gear on the rotating shaft be located at stepping motor portion and be located at the deceleration secondary spur gear of second spur gear on the rotating shaft of planetary gear speed-reduction portion; And the framework that stepping motor portion and planetary gear speed-reduction portion are accommodated with being set up in parallel.
This gear drive stepping motor is constituted by stepping motor portion and planetary gear speed-reduction portion, by adopting stepping motor portion, can under the situation of not using angular sensor such as photoelectric sensor and torque limiter etc., carry out correct anglec of rotation control.Moreover, rotation with respect to the rotating shaft of stepping motor portion, the rotation of planetary gear speed-reduction portion is set up in parallel, stepping motor portion and planetary gear speed-reduction portion are set up in parallel in framework, thus, can realize miniaturization and can save the space, can promote the miniaturization of predetermined equipment (mobile communication equipment etc.) of packing into.In addition, first spur gear that is located on the rotating shaft of stepping motor portion is connected by deceleration secondary spur gear with second spur gear on the rotating shaft that is located at planetary gear speed-reduction portion, thus, also can slow down by deceleration secondary spur gear, step of reduction or speed reducing ratio in the planetary gear speed-reduction portion can be reduced, miniaturization can be realized.
In addition, preferably the housing of stepping motor portion forms elongated shape, planetary gear speed-reduction portion side at this housing reaches the peristome that a side relative with it is provided with rectangle, the outer wall of housing forms circular-arc with the form that is set up between the peristome, on framework, the peristome of a side relative with planetary gear speed-reduction portion side is provided with notch part accordingly.
Like this, on longilineal housing, be provided with the peristome of rectangle,, can make stepping motor portion near planetary gear speed-reduction portion so housing can easily shorten planetary gear speed-reduction portion side in planetary gear speed-reduction portion side.In addition, on longilineal housing, also be provided with the peristome of rectangle in a side relative with planetary gear speed-reduction portion side, so housing can be easily a side relative with planetary gear speed-reduction portion side shortened, can shorten be set up in parallel total length direction on of gear drive stepping motor in stepping motor portion and planetary gear speed-reduction portion.Therefore, owing to adopt this stepping motor portion, can realize the miniaturization of gear drive stepping motor with peristome.Moreover, by being located at the notch part on the framework, framework can easily shorten and the relative side of planetary gear speed-reduction portion side, thereby can shorten be set up in parallel total length direction on of framework in stepping motor portion and planetary gear speed-reduction portion, can realize the miniaturization of gear drive stepping motor.
Communication equipment of the present invention is characterized in that, comprising: said gear transmission stepping motor and camera rotating part make the rotation of camera rotating part by the gear drive stepping motor.Like this, owing to have small-sized gear drive stepping motor, so can promote the miniaturization of communication equipment.
Communication equipment of the present invention is characterized in that, comprising: said gear transmission stepping motor and the body that can carry out the connection of on-off action ground by hinge open and close body by the gear drive stepping motor.Like this, owing to have small-sized gear drive stepping motor, so can promote the miniaturization of communication equipment.
Adopt the present invention, can realize miniaturization and can save the space, can promote the miniaturization of predetermined equipment of packing into.
Description of drawings
Fig. 1 is the stereogram that the mobile phone of gear drive stepping motor of the present invention has been used in expression.
Fig. 2 is the stereogram of an embodiment of expression gear drive stepping motor of the present invention.
Fig. 3 is the cutaway view of gear drive stepping motor shown in Figure 2.
Fig. 4 is the vertical view of the employed gear train of expression gear drive stepping motor.
Fig. 5 is the stereogram of gear drive stepping motor of the present invention.
Fig. 6 is the vertical view of gear drive stepping motor.
(component symbol explanation)
1 band camera mobile phone, 10 gear drive stepping motors
11 stepping motor portions, 14,24 housings
16 rotating shafts, 30 frameworks
31 32a of planetary gear speed-reduction portion rotating shafts
50 first spur gears, 51 second spur gears
53 deceleration secondary spur gear 60a, 60b, 61a, 61b peristome
63 notch part L1, L2 rotation
Side R of P planetary gear speed-reduction portion and the relative side of planetary gear speed-reduction portion side
Embodiment
Preferred embodiment to gear drive stepping motor of the present invention is elaborated with reference to the accompanying drawings.
As shown in Figure 1, in the band camera mobile phone 1, operating portion body 2 can carry out on-off action ground with monitor body 3 by hinge 4 and be connected.And, on monitor body 3, be provided with rotatable camera rotating part 5.In this camera rotating part 5, contain imaging apparatuss such as optical system, CMOS and CCD such as lens.In addition, also on camera rotating part 5, assemble iris apparatus, shutter device sometimes.This camera rotating part 5 rotates in the predetermined angular scope by small-sized gear drive stepping motor 10.And camera rotating part 5 can utilize the pulse current of supplying with to gear drive stepping motor 10 to stop arbitrarily angled.Moreover, on hinge 4, also be provided with the small-sized gear drive stepping motor 10 that is used for motorized motions monitor body 3.In addition, this camera rotating part 5 on can be applicable to mobile phone, also can be applicable to mobile communications device, for example PDA (personal digital assistant: Personal Digital Assistance).
As shown in Figures 2 and 3, gear drive stepping motor 10 has diameter and is about small-sized PM type stepping motor portion 11 about 5～10mm, this stepping motor portion 11 by stacked A phase lamination 12 and B mutually lamination 22 constitute.A phase lamination 12 has the longilineal metal shell 14 that constitutes yoke.In this housing 14, contain the multisegmented rotor that alternately is magnetized to the N utmost point and the S utmost point, be fixed with the rotating shaft 16 that on rotation L1, extends on the rotor.
In A phase lamination 12 sides, around rotor, alternately dispose the magnetic pole tooth of outside-in extension and the magnetic pole tooth that extends laterally from the inboard, rotor is magnetized with the spacing identical with the spacing of magnetic pole tooth.Moreover, around magnetic pole tooth, disposing the coil 17 that is wound on the reel, this coil 17 is connected with each terminal 18a of terminal base 18 on being fixed on housing 14.
Similarly, B phase lamination 22 has the longilineal metal shell 24 that constitutes yoke.In this housing 24, contain the multisegmented rotor that alternately is magnetized to the N utmost point and the S utmost point, on rotor, be fixed with rotating shaft 16.In B phase lamination 22 sides, around rotor, alternately dispose the magnetic pole tooth of outside-in extension and the magnetic pole tooth that extends laterally from the inboard, rotor is magnetized with the spacing identical with the spacing of magnetic pole tooth.
Moreover, around magnetic pole tooth, disposing the coil 27 that is wound on the reel, this coil 27 is connected with each terminal 28a of terminal base 28 on being fixed on housing 24.In addition, with respect to the magnetic pole tooth of A phase lamination 12 sides, the magnetic pole tooth of B phase lamination 22 sides 1/4 spacing that staggers.
So the stepping motor portion 11 that constitutes is housed in the resinous framework 30, as shown in Figures 3 and 4, contains the planetary gear speed-reduction portion 31 that is set up in parallel with stepping motor portion 11 in framework 30.This planetary gear speed-reduction portion 31 has the first order solar shaft 32 that is positioned on the rotation L2 that the rotation L1 with stepping motor portion 11 is set up in parallel.This solar shaft 32 is provided with the rotating shaft 32a that is positioned on the rotation L2, and this rotating shaft 32a is inserted in the bearing recess 30a that is provided with on the framework 30.
On this first order solar shaft 32, be formed with central gear 33, this central gear 33 and three planetary gear 34 engagements.Each planetary gear 34 can be installed in from first carriage 36 on the outstanding part in bottom with rotating freely, and with integrally formed fixed ring gear 37 engagements on the inner face of framework 30.On this first carriage 36, be formed with the second level solar shaft 38 that is positioned on the rotation L2, on second level solar shaft 38, be formed with central gear 39, this central gear 39 and three planetary gear 40 engagements.
Each planetary gear 40 can be installed in from second carriage 41 on the outstanding part in bottom with rotating freely, and with integrally formed fixed ring gear 37 engagements on the inner face of framework 30.Be formed with output shaft 43 on this second carriage 41, output shaft 43 is supported by the bearing 44 that is fixed on the framework 30.This bearing 44 is not by being formed by the copper agglomerated material of oil impregnated drying, plays a role as the cap of the planetary gear speed-reduction portion 31 of framework 30.Be provided with to bottom opening and be positioned at bearing recess 41a on the rotation L2 in the central authorities of second carriage 41, in this bearing recess 41a, be inserted with from the outstanding fulcrum 38a of second level solar shaft 38.
This planetary gear speed-reduction portion 31 and stepping motor portion 11 are set up in parallel in framework 30, on the rotating shaft 16 of stepping motor portion 11, be provided with first spur gear 50, on the rotating shaft 32a of the solar shaft 32 of planetary gear speed-reduction portion 31, be formed with second spur gear 51.Dispose deceleration secondary spur gear 53 between first spur gear 50 and second spur gear 51, this deceleration secondary spur gear 53 is supported freely by the axial region 30c rotation that is set in place on the partition wall 30b of the framework 30 between planetary gear speed-reduction portion 31 and the stepping motor portion 11.And, big spur gear 53a of subordinate's side of deceleration secondary spur gear 53 and 50 engagements of first spur gear, higher level's side spur pinion 53b of deceleration secondary spur gear 53 and 51 engagements of second spur gear realize slowing down thus.
In addition, when Assembling gear transmission stepping motor 10, the above-mentioned various gears of planetary gear speed-reduction portion 31, second spur gear 51 and deceleration secondary spur gear 53 can be inserted in axial region and the bearing portion bottom side from framework 30 under the state that unloads the bottom 30d that is located at framework 30 bottoms, in the framework 30 of can packing into simply.And, by planetary gear speed-reduction portion 31 and spur gear 50,51,53 all are made of resin, can realize low noise, by use fluorine class half solidity lubriation material as lubriation material, can realize the stability and the assembling simplification that rub.
Like this, gear drive stepping motor 10 is constituted by stepping motor portion 11 that is set up in parallel and planetary gear speed-reduction portion 31, by adopting stepping motor portion 11, can under the situation of not using angular sensor such as photoelectric sensor and torque limiter etc., carry out correct anglec of rotation control.
Moreover, rotation L1 with respect to the rotating shaft 16 of stepping motor portion 11, the rotation L2 of planetary gear speed-reduction portion 31 is set up in parallel, stepping motor portion 11 and planetary gear speed-reduction portion 31 are set up in parallel in framework 30, thus, can realize the miniaturization of gear drive stepping motor 10, can save the space, can promote the miniaturization of the mobile communication equipment (for example mobile phone and PDA etc.) of predetermined this gear drive stepping motor 10 of packing into.
In addition, second spur gear 51 that is located on the rotating shaft 32a of first spur gear 50 on the rotating shaft 16 of stepping motor portion 11 and the solar shaft 32 that is located at planetary gear speed-reduction portion 31 is connected by deceleration secondary spur gear 53, thus, part except that planetary gear speed-reduction portion 31 also can be slowed down, step of reduction or speed reducing ratio in the planetary gear speed-reduction portion 31 can be reduced, miniaturization can be realized.In addition, be set at setting by the speed reducing ratio with gear drive stepping motor 10, output shaft 43 can be by manually just changeing and reversing.
Method to the miniaturization more of gear drive stepping motor 10 that stepping motor portion 11 and planetary gear speed-reduction portion 31 are set up in parallel in framework 30 describes below.
As Fig. 2, Fig. 3, Fig. 5 and shown in Figure 6, in the cross section vertical with rotation L1 is in the longilineal stepping motor portion 11, on the elongated shape metal shell 14 of A phase lamination 12, reach peristome 60a, the 60b that a side (outside) R relative with it is provided with rectangle at planetary gear speed-reduction portion side (inboard) P, the outer wall 14a of housing 14 forms circular-arc with the form that is set up between peristome 60a, the 60b.Similarly, on the elongated shape metal shell 24 of B phase lamination 22, reach peristome 61a, the 61b that a side R relative with it is provided with rectangle at the side P of planetary gear speed-reduction portion, the outer wall 24a of housing 24 forms circular-arc with the form that is set up between peristome 61a, the 61b.And at the side P of planetary gear speed-reduction portion, peristome 60a and peristome 61a are set up in parallel on rotation L1 direction, and at a side R relative with the side P of planetary gear speed-reduction portion, peristome 60b and peristome 61b are set up in parallel on rotation L1 direction.
Like this, on longilineal housing 14,24, be provided with peristome 60a, the 61a of rectangle at the side P of planetary gear speed-reduction portion, so housing 14,24 can easily shorten the side P of planetary gear speed-reduction portion, the interval of rotation L1 and rotation L2 narrows down, and can make stepping motor portion 11 near planetary gear speed-reduction portion 31.In addition, on longilineal housing 14,24, be provided with peristome 60b, the 61b of rectangle at a side R relative with the side P of planetary gear speed-reduction portion, so housing 14,24 can be easily a side R relative with the side P of planetary gear speed-reduction portion shortened, can shorten be set up in parallel size direction on of gear drive stepping motor 10 in stepping motor portion 11 and planetary gear speed-reduction portion 31.Therefore, owing to adopt this stepping motor portion 11, can realize the miniaturization of gear drive stepping motor 10 with peristome 60a, 60b, 61a, 61b.
Moreover, on framework 30 corresponding to the peristome 60b of a side R relative, the notch part 63 that 61b is provided with rectangle with the side P of planetary gear speed-reduction portion.Adopt this notch part 63, framework 30 can easily shorten a side R relative with the side P of planetary gear speed-reduction portion, thereby can shorten be set up in parallel length direction on of framework 30 in stepping motor portion 11 and planetary gear speed-reduction portion 31.
Like this, realize that by the whole bag of tricks the gear drive stepping motor 10 after the miniaturization is 12.5mm in the total length that is set up in parallel on the direction of stepping motor portion 11 and planetary gear speed-reduction portion 31, width is 7mm.
Claims (4)
1, a kind of gear drive stepping motor is characterized in that, comprising:
Rotating shaft is with the stepping motor portion of predetermined angular stepping;
Planetary gear speed-reduction portion with rotation that the rotation with respect to the described rotating shaft of described stepping motor portion is set up in parallel;
Connect first spur gear on the described rotating shaft be located at described stepping motor portion and be located at the deceleration secondary spur gear of second spur gear on the rotating shaft of described planetary gear speed-reduction portion; And
The framework that described stepping motor portion and described planetary gear speed-reduction portion are accommodated with being set up in parallel.
2, gear drive stepping motor as claimed in claim 1, it is characterized in that, the housing of described stepping motor portion forms elongated shape, the peristome that is provided with rectangle in the described planetary gear speed-reduction portion side and a side relative of described housing with it, the outer wall of described housing forms circular-arc with the form that is set up between the described peristome, on described framework, the described peristome of a side relative with described planetary gear speed-reduction portion side is provided with notch part accordingly.
3, a kind of communication equipment is characterized in that, comprising: described gear drive stepping motor of claim 1 and camera rotating part make described camera rotating part rotation by described gear drive stepping motor.
4, a kind of communication equipment is characterized in that, comprising: described gear drive stepping motor of claim 1 and the body that can carry out the connection of on-off action ground by hinge open and close described body by described gear drive stepping motor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-349539 | 2005-12-02 | ||
| JP2005349539 | 2005-12-02 | ||
| JP2005349539A JP4891600B2 (en) | 2005-12-02 | 2005-12-02 | Geared stepping motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1976174A true CN1976174A (en) | 2007-06-06 |
| CN1976174B CN1976174B (en) | 2011-06-22 |
Family
ID=38126027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101639427A Active CN1976174B (en) | 2005-12-02 | 2006-11-29 | Gear-driven step motor and communication device using same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4891600B2 (en) |
| KR (1) | KR101121233B1 (en) |
| CN (1) | CN1976174B (en) |
| TW (1) | TWI393328B (en) |
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|---|---|---|---|---|
| CN102769352A (en) * | 2011-05-02 | 2012-11-07 | 思考电机（上海）有限公司 | Vibration device and mobile terminal |
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| FR3030150B1 (en) * | 2014-12-11 | 2018-03-16 | Valeo Systemes Thermiques | ACTUATOR WITH REDUCED SIZE, WITH INTEGRATED BLOCKING OF THE MOTOR IN RELATION TO THE HOUSING |
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2005
- 2005-12-02 JP JP2005349539A patent/JP4891600B2/en active Active
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2006
- 2006-11-29 CN CN2006101639427A patent/CN1976174B/en active Active
- 2006-11-30 KR KR1020060120116A patent/KR101121233B1/en not_active IP Right Cessation
- 2006-12-01 TW TW095144845A patent/TWI393328B/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769352A (en) * | 2011-05-02 | 2012-11-07 | 思考电机（上海）有限公司 | Vibration device and mobile terminal |
| CN102769352B (en) * | 2011-05-02 | 2015-03-04 | 思考电机（上海）有限公司 | Vibration device and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1976174B (en) | 2011-06-22 |
| TW200723647A (en) | 2007-06-16 |
| KR101121233B1 (en) | 2012-03-23 |
| KR20070058336A (en) | 2007-06-08 |
| TWI393328B (en) | 2013-04-11 |
| JP4891600B2 (en) | 2012-03-07 |
| JP2007159237A (en) | 2007-06-21 |
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