EP2050882B1 - Toilet - Google Patents

Toilet Download PDF

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Publication number
EP2050882B1
EP2050882B1 EP07791064.4A EP07791064A EP2050882B1 EP 2050882 B1 EP2050882 B1 EP 2050882B1 EP 07791064 A EP07791064 A EP 07791064A EP 2050882 B1 EP2050882 B1 EP 2050882B1
Authority
EP
European Patent Office
Prior art keywords
section
toilet
bowl
skirt
wall
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.)
Active
Application number
EP07791064.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2050882A4 (en
EP2050882A1 (en
Inventor
Norio Higashi
Kazuhiko Mitoma
Tamotsu Kawaguchi
Tadao Sakata
Hideru Hamano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP2050882A1 publication Critical patent/EP2050882A1/en
Publication of EP2050882A4 publication Critical patent/EP2050882A4/en
Application granted granted Critical
Publication of EP2050882B1 publication Critical patent/EP2050882B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing

Definitions

  • the present invention relates to a toilet constituted by a plurality of synthetic-resin parts.
  • EP 0 898 920 A1 discloses a potty including a base container, having a floor and a side wall extending upwardly from the floor, a removable seat having a rim which is supported on a sealed against the side wall of the base container and a recessed portion which extends partially into the base container, and a removable lid to cover at least the recessed portion of the seat.
  • the recessed portion of the seat is formed with at least one aperture through which liquid may escape into the base container.
  • JP 2000 054465 A discloses a toilet unit having a toilet bowl supporting-surrounding body surrounding a Western style toilet bowl from a front part of a bowl to a side of the bowl, which is integrally formed at a flooring forming a floor face of a toilet.
  • the bowl is supported by the bowl supporting-surrounding body, making the lower end face of a rim part abut to the upper edge of the bowl supporting-surrounding body.
  • the bowl supporting-surrounding body is connected to a rear side body laterally extended behind a bowl to abut to the rear wall texture of the toilet.
  • the flooring integrated with the bowl supporting-surrounding body is disposed at the toilet to support the bowl by the bowl supporting-surrounding body.
  • DE 142 875 C discloses a potty having two connectable containers, which through a relative movement of one container in respect to the other container can be securely locked or unlocked with each other.
  • WO 2004/022862 A1 discloses a porcelain water closet capable of washing a toilet bowl and discharging dirt by using washing water in washing water tank.
  • the water closet comprises a dirt receiving face, a bowl part having an overhung rim part and a rack part, a discharge passage having an inlet connected to the lower side of the bowl part and discharging dirt by the action of siphon, a first water jetting part jetting the washing water onto the rack part of the bowl part to form a swirl flow, a second water jetting part jetting the washing water onto the rack part of the bowl part in the same direction as the rotating direction of the swirl flow, a first water passage feeding the washing water from the washing water tank to the first water jetting part, and a second water passage feeding the washing water from the washing water tank to the second water jetting part.
  • Patent Document 1 There is conventionally known a toilet constituted by a plurality of parts as shown in Patent Document 1.
  • the toilet comprises three parts: a skirt section, a bowl section placed inside the skirt section and a rim section opening downward.
  • the bowl section has an upper end which protrudes outward to be joined to the upper end of the skirt section.
  • the rim section is placed so as to cover the upper end of the bowl section and joined to the bowl section and an upper portion thereof.
  • Patent Document 1 Japanese Patent Publication No. 3436004
  • a toilet according to the present invention includes: a skirt section molded of synthetic resin; a bowl section placed inside the skirt section; and a toilet-seat placement section joined to the upper portion of the skirt section and having a toilet-seat placement surface on which a toilet seat is placed, the bowl section and the toilet-seat placement section being molded of synthetic resin into a single member.
  • the bowl section and the toilet-seat placement section are molded of synthetic resin into a single member, thus reducing the number of parts compared with a conventional toilet in which a bowl section and a toilet-seat placement section are molded as a separate member from each other respectively.
  • the reduction of the number of the parts reduces the number of metal molds for molding the respective parts and the number of places where the parts are joined to each other, thereby cutting down the cost of the toilet.
  • a toilet according to this embodiment includes a skirt section 1 and a bowl section 5 shown in Figs. 1A and 1B.
  • Fig. 1A is a perspective exploded view of the skirt section 1 and the bowl section 5
  • Fig. 1B is a perspective view of the assembled skirt section 1 and bowl section 5.
  • the skirt section 1 is shaped to enclose an inner space and, in this embodiment, open backward.
  • the bowl section 5 is placed inside the skirt section 1 and also shaped to enclose an inner space; in this embodiment, substantially cylindrically shaped.
  • the bowl section 5 is molded of synthetic resin integrally with a toilet-seat placement section described later (molded into a single member).
  • Both the skirt section 1 and the bowl section 5 are molded of synthetic-resin by injection molding, compression molding, vacuum forming or the like.
  • a material for molding there is mainly and suitably used thermoplastic resin, for example, PP of a chemical resistance, an acrylic resin of a considerable strength, ABS or PET provided with a reinforcement material or the like.
  • Each molded part preferably has a thickness of 3 to 10 mm.
  • the parts are preferably annealed because they are relatively large so that a residual stress easily remains therein when they are welded together.
  • Each molded part may be coated with a generally-used hard coating material for improvement of the surface quality.
  • the skirt section 1 and the bowl section 5 can be joined together in various forms. Some examples of the junction forms are illustrated in Figs. 2 to 8 .
  • Fig. 2 shows a first form of the above junction.
  • the bowl section 5 is integrally formed with a rim section 6 having a surface for placing a toilet seat at an upper-end portion of the bowl section 5, and the rim section 6 is joined to an upper portion 1b of the skirt section 1.
  • the rim section 6 includes an upper wall 6a, an inner wall 6b extending downward from an inner end of the upper wall 6a and a lower wall 6c extending outward from a lower end of the inner wall 6b.
  • the upper wall 6a, inner wall 6b and lower wall 6c enclose a hollow portion 7.
  • the upper wall 6a has a flat top surface on which a toilet seat (not shown) is placed, thus corresponding to a toilet-seat placement section forming a toilet-seat placement surface.
  • the upper wall 6a has an outer end 6d protruding outwardly beyond the lower wall 6c, which is placed on an upper-end portion 1a of the skirt section 1.
  • the upper surface of the upper-end portion 1a is joined to an under surface of the outer end 6d by welding or the like.
  • the bowl section 5 includes, in addition to the rim section 6, an intermediate wall 5g extending downward from the lower surface of the lower wall 6c, and a body wall 5a protruding slightly inward from the intermediate wall 5g and extending downward from there.
  • the outer end of the lower wall 6c forms a convex portion 6e protruding outwardly beyond the intermediate wall 5g over the full circumference. Involving contact of the convex portion 6e with the inner surface of the skirt section 1, the upper surface of the upper-end portion 1a is joined to the under surface of the outer end 6d.
  • the lower wall 6c, the intermediate wall 5g and the upper-end portion of the body wall 5a form an annular concave portion 5f denting outward.
  • the bowl section 5 allows washing water for washing the inner surface thereof to flow in the hollow portion 7 and further swirl in the annular concave portion 5f.
  • the toilet consists of the two synthetic-resin parts -- the skirt section 1 and the bowl section 5 integrally formed with the rim section 6 including the toilet-seat placement section, thereby requiring fewer metal molds for molding each part than a conventional toilet in which a skirt section, a bowl section and a rim section are formed as respective separate parts from each other.
  • the conventional toilet requires at least two junctions among the three component parts, while the toilet shown in Figs. 1 and 2 requires only one junction between the skirt section 1 and the bowl section 5 at one place (that is a place where the upper-end portion 1a of the skirt section 1 makes contact with the outer end 6d of the upper wall 6a of the rim section 6 in the bowl section 5 shown in Fig. 2 ).
  • the toilet requires a reduced number of metal molds and parts-junction places, which cuts down its cost.
  • the lower surface of the outer end 6d in the upper wall 6a of the rim section 6 is placed and joined onto the upper-end portion 1a of the skirt section 1, which allows a seating road applied onto the rim section 6 to be borne by the upper-end portion 1a of the skirt section 1. This enhances the rigidity of the upper wall 6a as the toilet-seat placement section.
  • Fig. 3 shows a second form of the junction of the skirt section 1 and the bowl section 5.
  • the skirt section 1 includes an upper portion 1b of less thickness than a portion thereunder, and the thickness difference between the above two portions forms a step portion 1c on an inner surface of the skirt section 1.
  • the step portion 1c locks the convex portion 6e of the rim section 6 in the bowl section 5 thereon, involving contact of an outer surface of the intermediate wall 5g of the bowl section 5 with the inner surface of the skirt section 1.
  • the convex portion 6e constitutes a supported portion locked on the step portion 1c of the skirt section 1 (i.e., supported from underside). Locking the convex portion 6e by the step portion 1c allows the step portion 1c of the skirt section 1 to bear a seating load applied onto the rim section 6, thereby further enhancing the rigidity of the upper wall 6a as the toilet-seat placement section. Furthermore, the contact of the outer surface of the intermediate wall 5g of the bowl section 5 with the inner surface of the skirt section 1 prevents a displacement of the bowl section 5 from the skirt section 1.
  • Fig. 4 shows a third form of the junction of the skirt section 1 and the bowl section 5.
  • the rim section 6 in this junction form is integrally formed with a plurality of bowl-section ribs 6h.
  • the bowl-section ribs 6h are vertically arranged, protruding outward from the outer surface of the inner wall 6b between an upper wall 6a and an lower wall 6c (i.e., protruding into the hollow portion 7).
  • the bowl-section ribs 6h make contact with the inner surface of the upper portion 1b of the skirt section 1, thereby enhancing the rigidity of the rim section 6 including the upper wall 6a as the toilet-seat placement section.
  • Fig. 5 shows a fourth form of the junction of the skirt section 1 and the bowl section 5, in which the rim section 6 includes bowl-section ribs 6h of a triangle-shape in section. As shown in this, no limitation is set on the specific shape of the bowl-section rib 6h.
  • Fig. 6 shows a fifth form of the junction of the skirt section 1 and the bowl section 5.
  • the bowl section 5 shown in Fig. 6 though including the intermediate wall 5g and the body wall 5a shown in Figs. 2 to 5 , includes no rim section 6; a flat toilet-seat placement wall 5b is directly continued to the upper end of the intermediate wall 5g. In other words, the intermediate wall 5g is directly continued to an under surface of the toilet-seat placement wall.
  • the toilet-seat placement wall 5b has an outer end 5d protruding outward beyond the intermediate wall 5g, and the under surface of the outer end 5d is joined to the upper surface of the upper-end portion 1a of the skirt section 1, involving contact of the outer surface of the intermediate wall 5g with the inner surface of the skirt section 1.
  • the contact between the outer surface of the intermediate wall 5g and the inner surface of the skirt section 1 prevents a displacement of the bowl section 5 from the skirt section 1.
  • the direct continuity of the intermediate wall 5g and the toilet-seat placement wall 5b to each other allows a seating load applied onto the toilet-seat placement wall 5b to be borne by not only the upper-end portion 1a of the skirt section 1 but also the intermediate wall 5g. This enhances the rigidity of the toilet-seat placement wall 5b.
  • Fig. 7 shows a sixth form of the junction of the skirt section 1 and the bowl section 5.
  • the inner wall 5c connects an inner end of the intermediate wall 5g to the upper-end portion of the body wall 5a in a position apart inward from the intermediate wall 5g, and encloses a closed space, i.e. a hollow portion, in conjunction with the intermediate wall 5g, the toilet-seat placement wall 5b and the upper-end portion of the body wall 5a.
  • the closed space is filled with a foamed material 8, which reinforces the upper portion of the bowl section 5 and enhances the rigidity of the toilet-seat placement wall 5b.
  • This advantage can also be obtained by filling the hollow portion 7 shown in Figs. 2 to 5 with a foamed material.
  • Fig. 8 shows a seventh form of the junction of the skirt section 1 and the bowl section 5.
  • the convex portion 6e shown in Fig.2 is omitted, and the upper wall 6a is joined with the skirt section 1 involving contact of the outer surface of the intermediate wall 5g with the inner surface of the skirt section 1.
  • the inner surface of the skirt section 1 is formed with a plurality of skirt-section ribs 1d and a plurality of skirt-section ribs 1e at a predetermined interval in the circumferential directions thereof.
  • Each of the skirt-section ribs 1d has a shape to support the upper wall 6a of the rim section 6 in the bowl section 5 from underside and each of the skirt-section ribs 1e has a shape to support a step portion 5h formed at the upper end of the body wall 5a from underside.
  • the step portion 5h constitutes a supported portion supported on the side of the skirt section 1 at a position far away downward from the upper wall 6a as the toilet-seat placement section.
  • skirt-section ribs 1d and 1e support the skirt section 1 from underside to thereby enhance the rigidity of the upper wall 6a as the toilet-seat placement section, and further that of the whole skirt section 1.
  • the present invention provides a toilet having a reduced number of parts and low cost.
  • the toilet according to the present invention includes: a skirt section molded of a synthetic resin; a bowl section placed inside the skirt section; and a toilet-seat placement section joined to the upper portion of the skirt section and having a toilet-seat placement surface on which a toilet seat is placed, in which the bowl section and the toilet-seat placement section are molded of a synthetic resin into a single member. Molding the bowl section and the skirt section of a synthetic resin in one piece reduces the number of component parts of the toilet seat, thereby reducing the number of metal molds required for molding each of the component parts and the number of places for junction of the component parts. This contributes to reduced cost of the toilet.
  • the outer end of the toilet-seat placement section is placed on the upper-end portion of the skirt section, and in this placement state, the outer end of the toilet-seat placement section is joined to the upper-end portion of the skirt section.
  • This junction allows a seating load applied onto the toilet-seat placement section to be borne by the upper-end portion of the skirt section, thereby enhancing the rigidity for supporting the toilet-seat placement section.
  • the junction can be realized, for example, by a outward protrusion of the outer end of the toilet-seat placement section beyond the other portion of the bowl section.
  • the bowl section includes a convex portion protruding outward below the toilet-seat placement section, and the inner surface of the skirt is formed with a step portion locking the convex portion.
  • the toilet-seat placement section may be joined to the skirt section involving contact of a portion of the bowl section under the toilet-seat placement with the inner surface of the skirt section. This contact prevents a displacement of the bowl section from the skirt section.
  • the bowl section includes a convex portion protruding outward below the toilet-seat placement section to form a hollow portion between the toilet-seat placement section and the convex portion, and the toilet-seat placement section is joined to the skirt section involving contact of the convex portion with the inner surface of the skirt section.
  • the bowl section may include a bowl-section rib protruding into the hollow portion from the outer surface of the wall between the toilet-seat placement section and the convex portion.
  • the bowl-section rib enhances the rigidity of the upper-end portion of the bowl section including the toilet-seat placement section.
  • the reinforcement effect is more enhanced.
  • the rigidity of the upper-end portion of the bowl section may be also enhanced by filling the hollow portion with a foamed material.
  • the bowl section may include an intermediate wall directly continued to a under surface of the toilet-seat placement section, and the toilet-seat placement section may be joined to the skirt section involving contact of the outer surface of the intermediate wall with the inner surface of the skirt section.
  • the intermediate wall can bear a seating load applied onto the toilet-seat placement section, thus contributing an improved rigidity of the toilet-seat placement section.
  • the skirt section preferably includes a supporting portion supporting the bowl section from underside at a different position from that of the upper-end portion thereof.
  • the supporting portion can further enhance the rigidity for supporting the toilet-seat placement section.
  • the bowl section includes a supported portion protruding outward below the toilet-seat placement section; and the supporting portion comes into contact with the supported portion from underside.
  • the supporting portion can bear a seating load applied onto the toilet-seat placement section to enhance the rigidity of the toilet-seat placement section.
  • the supporting portion may be a step portion formed in the inner surface of the skirt section to lock the supported portion, or may comprise a plurality of skirt-section ribs protruding inward from the inner surface of the skirt section in a plurality of positions aligned in the circumferential directions of the skirt section respectively.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Toilet Supplies (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP07791064.4A 2006-07-20 2007-07-20 Toilet Active EP2050882B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006198177A JP4816296B2 (ja) 2006-07-20 2006-07-20 便器
PCT/JP2007/064326 WO2008010570A1 (en) 2006-07-20 2007-07-20 Toilet

Publications (3)

Publication Number Publication Date
EP2050882A1 EP2050882A1 (en) 2009-04-22
EP2050882A4 EP2050882A4 (en) 2011-06-22
EP2050882B1 true EP2050882B1 (en) 2015-09-02

Family

ID=38956901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07791064.4A Active EP2050882B1 (en) 2006-07-20 2007-07-20 Toilet

Country Status (5)

Country Link
EP (1) EP2050882B1 (ja)
JP (1) JP4816296B2 (ja)
KR (1) KR101050331B1 (ja)
CN (1) CN101490345B (ja)
WO (1) WO2008010570A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9951504B2 (en) 2015-03-30 2018-04-24 B/E Aerospace, Inc. Apparatus for controlling a toilet system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5104388B2 (ja) * 2008-02-22 2012-12-19 パナソニック株式会社 便器
WO2009107807A1 (ja) * 2008-02-29 2009-09-03 Toto株式会社 トイレ装置
EP2331759B8 (en) * 2008-10-03 2017-08-30 B/E Aerospace, Inc. Aircraft vacuum waste system and its assembling method
JP2010196246A (ja) * 2009-02-23 2010-09-09 Panasonic Electric Works Co Ltd 便器装置
CN102230321B (zh) * 2011-04-12 2013-06-05 上海琥达投资发展有限公司 一种节水型热塑性树脂基新型复合材料座便器及制备方法
JP6436651B2 (ja) * 2014-05-30 2018-12-12 株式会社Ｌｉｘｉｌ 便器及びその製造方法
WO2016027644A1 (ja) * 2014-08-18 2016-02-25 株式会社Ｌｉｘｉｌ 水洗式便器、便器及び水洗式大便器
JP2016166497A (ja) * 2015-03-10 2016-09-15 Toto株式会社 水洗大便器
CN110000894B (zh) * 2019-03-26 2024-01-30 佛山市顺德区乐华陶瓷洁具有限公司 一种高强度马桶及其制备方法
CN110053132B (zh) * 2019-03-26 2024-01-30 佛山市顺德区乐华陶瓷洁具有限公司 一种马桶及其制备方法
US12006674B2 (en) 2019-09-16 2024-06-11 Nina L. Schaldach Toilet skirt

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DE142875C (ja) *
CA2152952A1 (en) * 1993-10-29 1995-05-04 Shuji Inoue Two-layered, formed toilet seat and method of manufacturing same
JP3272590B2 (ja) * 1995-11-24 2002-04-08 トステム株式会社 断熱パネル
JP3668552B2 (ja) * 1996-04-01 2005-07-06 帝人化成株式会社 便器
JP3436004B2 (ja) * 1996-07-24 2003-08-11 松下電工株式会社 便 器
JPH1072860A (ja) * 1996-08-29 1998-03-17 Inax Corp 壁掛け式便器
GB9718213D0 (en) * 1997-08-29 1997-11-05 Chapman David K Portable toilet
SE513384C2 (sv) * 1998-05-12 2000-09-04 Bertil Oestbo Toalettstol för anslutning till en komposteringsbehållare
JP2000038762A (ja) * 1998-07-21 2000-02-08 Minosuke Kasatani 便 器
JP3661430B2 (ja) * 1998-07-31 2005-06-15 東陶機器株式会社 トイレユニット
JP3952883B2 (ja) * 2002-07-18 2007-08-01 Ｔｏｔｏ株式会社 便器
JP2004068293A (ja) * 2002-08-02 2004-03-04 Toto Ltd 衛生陶器
CN100430562C (zh) 2002-09-03 2008-11-05 Toto株式会社 冲水便器
JP4263966B2 (ja) * 2003-08-28 2009-05-13 株式会社岡村製作所 椅子の肘掛装置
JP2005083085A (ja) * 2003-09-09 2005-03-31 Matsushita Electric Works Ltd 水洗便器洗浄装置
JP4260608B2 (ja) * 2003-11-25 2009-04-30 寛 藤田 ワンピース便器
CN1598177A (zh) * 2004-08-12 2005-03-23 重庆四维瓷业(集团)股份有限公司 一种座便器的制作方法
JP2007255030A (ja) * 2006-03-23 2007-10-04 Matsushita Electric Works Ltd 洋式便器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9951504B2 (en) 2015-03-30 2018-04-24 B/E Aerospace, Inc. Apparatus for controlling a toilet system
US10041241B2 (en) 2015-03-30 2018-08-07 B/E Aerospace, Inc. Method and apparatus for installation of a toilet system on an aircraft
US10202747B2 (en) 2015-03-30 2019-02-12 B/E Aerospace, Inc. Method and apparatus for controlling a waste outlet of a toilet
US10208468B2 (en) 2015-03-30 2019-02-19 B/E Aerospace, Inc. Maintenance mode for aircraft vacuum toilet
US10301805B2 (en) 2015-03-30 2019-05-28 B/E Aerospace, Inc. Aircraft vacuum toilet system splashguard

Also Published As

Publication number Publication date
KR101050331B1 (ko) 2011-07-19
JP4816296B2 (ja) 2011-11-16
CN101490345A (zh) 2009-07-22
WO2008010570A1 (en) 2008-01-24
EP2050882A4 (en) 2011-06-22
CN101490345B (zh) 2012-04-11
EP2050882A1 (en) 2009-04-22
KR20090041403A (ko) 2009-04-28
JP2008025176A (ja) 2008-02-07

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