WO2019186614A1 - パーマロッド - Google Patents
パーマロッド Download PDFInfo
- Publication number
- WO2019186614A1 WO2019186614A1 PCT/JP2018/011983 JP2018011983W WO2019186614A1 WO 2019186614 A1 WO2019186614 A1 WO 2019186614A1 JP 2018011983 W JP2018011983 W JP 2018011983W WO 2019186614 A1 WO2019186614 A1 WO 2019186614A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elastic
- rod
- perm
- permanent
- perm rod
- Prior art date
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/12—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
- A45D2/14—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means
- A45D2/146—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means tube-like
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/12—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
- A45D2/14—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of single-piece type, e.g. stiff rods or tubes with or without cord, band, or the like as hair-fastening means
- A45D2/20—Elastic curlers
Definitions
- the present invention relates to a perm rod used for permanent wave treatment in a beauty salon or the like.
- a permanent rod for winding hair is used in a permanent wave treatment in a beauty salon or the like.
- a conventional permanent rod for example, a permanent wound rod disclosed in Patent Document 1 is known.
- Permanent curly rods disclosed in Patent Document 1 are formed in a cylindrical shape made of a synthetic resin having an hourglass shape with a slightly narrow diameter at the center in the axial direction. At both ends of the permanent curly rod, notched portions for fastening rubber bands are arranged in parallel at a required interval in the circumferential direction. The hair wound around the permanent curly rod is fixed by a rubber band hooked on the notch.
- Patent Document 2 includes a rod portion having a skin layer on a surface thereof and a low-foamed hollow synthetic rubber, a thermoplastic elastomer, or an elastic hollow body made of a soft synthetic resin.
- a permanent rod is disclosed.
- the rod part of this document has a core material made of a hollow or solid synthetic resin or made of wood, which is inserted and fixed in the hollow part of the elastic hollow body.
- the permanent rod in the same document includes a cap portion fixed to a joint portion disposed at an end portion of the core member of the rod portion.
- the cylindrical body which forms a cap main body has an external fitting part which externally fits the end of the rod part at one end, and a rubber stopper cut into an uneven shape is formed at the other end of the cylindrical body. Is formed.
- the conventional perm rods had to be improved in order to increase the efficiency of the treatment by the hairdresser and to apply a beautiful permanent wave.
- the perm rod made of synthetic resin formed in a cylindrical shape has a hard outer peripheral surface, a small hair holding force, and the hair is easy to slip. Further, since it is formed in a hollow shape, heat transfer is poor, and there is a problem that beautiful wave curl cannot be applied in a short time.
- the conventional perm rod having an elastic hollow body disclosed in Patent Document 2 has an outer peripheral surface that is slightly elastically deformable in the radial direction. However, the amount of deformation was insufficient, and it was difficult to suppress the shift of the hair while reducing the damage felt by the customer. Further, if the perm rod is too soft, it becomes difficult to form wave curls for making the hair into a suitable shape.
- the position of the notch was fixed with respect to the outer peripheral surface on which the hair was hung, and it was not possible to move in the rotation direction of the perm rod. Therefore, the hair hung on the perm rod is strongly fixed so that it cannot move in the circumferential direction by the rubber band hung on the notch. As a result, the hair is maintained in a state of being pulled strongly from the head, which may cause the customer to feel pain.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a permanent rod capable of applying a beautiful permanent wave with an easy treatment.
- the perm rod of the present invention is a perm rod in which hair is wound around the outer peripheral surface, and includes a cylindrical core part, an elastic part formed of an elastic body covering the outer peripheral surface of the core part, and an outer peripheral surface of the elastic part. It has the waterproof surface part to cover, and the pin part attached to the both ends of an elastic part, It is characterized by the above-mentioned.
- a cylindrical core part an elastic part formed from an elastic body covering the outer peripheral surface of the core part, a waterproof surface part covering the outer peripheral surface of the elastic part, and an elastic part And pin portions attached to both ends.
- the strength of the entire perm rod can be suitably secured by providing a cylindrical core at the center of the perm rod. Since the elastic part and the surface part are provided on the outer periphery of the core part, the entire perm rod is formed in a substantially cylindrical shape without forming a hollow part near the center part of the perm rod. Thereby, heat transfer performance suitable for beautiful wave curl treatment can be obtained.
- the hair wound around the perm rod can be supported with a suitable tension by deformation of the elastic part.
- the waterproof surface portion is formed on the outer periphery of the elastic portion, it is possible to prevent the chemical solution from flowing into the perm rod, and to increase the efficiency of the treatment. Further, by providing the surface portion, it is possible to suppress slipping of the wound hair bundle. Due to the excellent deformability of the elastic part and the suitable frictional performance of the surface part, the hair bundle can be firmly held even if the rubber band is loosely hung on the surface part. Therefore, a beautiful permanent wave with less damage can be applied.
- the pin part for hanging the rubber band is attached to both ends of the elastic part.
- the pin part and the rubber band hung thereon can move together with the end part of the elastic part by deformation of the elastic part. Therefore, it is possible to support the hair with a tension that allows a suitable movement that easily causes a permanent wave.
- the elastic portion may be elastically deformable in the radial direction and the circumferential direction.
- the elastic part can be contracted in the radial direction and slightly rotated in the circumferential direction to wind the hair.
- the hair wound around the perm rod is held by a suitable holding force due to the repulsion of the elastic portion. Therefore, the hair can be prevented from loosening without giving a strong pulling force that causes pain in the scalp, and a beautiful permanent wave can be applied.
- the surface portion may be formed so as to continuously cover the core portion and the end portion of the elastic portion from the outer peripheral surface of the elastic body. Therefore, it can prevent that a chemical
- the pin portion is formed in a U shape by bending a rod-like body, and both end portions thereof may be inserted into the elastic portion.
- work which hangs a rubber band can be performed easily.
- a rubber band can be fixed to a hole portion of a pin portion formed by inserting a U-shaped rod-like body into the elastic portion.
- the surface portion may be formed of a rubber material.
- an electronic circuit that outputs perm rod information may be embedded in the elastic portion.
- FIG. 1 is a perspective view showing an outline of a perm rod according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing an outline of the perm rod according to the embodiment of the present invention.
- FIG. 3 is a longitudinal sectional view showing an outline of the perm rod according to the embodiment of the present invention.
- FIG. 4 is a cross-sectional view taken along line AA showing the vicinity of the pin portion of the permanent rod according to the embodiment of the present invention.
- FIG. 5 is a side view showing the arrangement of the pin portions of the perm rod according to the embodiment of the present invention.
- FIG. 6 is a side view showing another example of the arrangement of the pin portions of the perm rod according to the embodiment of the present invention.
- FIG. 7 is a perspective view showing an example of elastic deformation of the perm rod according to the embodiment of the present invention.
- FIG. 1 is a perspective view schematically showing a perm rod 1 according to an embodiment of the present invention.
- the permanent rod 1 is used for permanent wave treatment in a beauty salon or the like. As shown in FIG. 1, the permanent rod 1 has a substantially cylindrical shape. During the permanent wave operation, hair is wound around the outer peripheral surface of the permanent rod 1.
- the outer surface of the perm rod 1 is covered with a waterproof surface portion 12 in almost the entire area. That is, the outer periphery of the perm rod 1 is covered with a surface part 13 that is a part of the surface part 12, and the end of the perm rod 1 is covered with a surface part 14 that is continuous with the surface part 13.
- a plurality of pin portions 15 are provided at both ends of the perm rod 1.
- the pin portion 15 is a portion on which a rubber band is hung during permanent wave treatment. Specifically, hair is wound around the perm rod 1 and a rubber band is hung so as to connect the pin part 15 on one end side of the perm rod 1 and the pin part 15 on the other end side so as to suppress the hair from the outside.
- FIG. 2 is a cross-sectional view showing an outline of the perm rod 1
- FIG. 3 is a vertical cross-sectional view showing an outline of the perm rod 1.
- the perm rod 1 includes a cylindrical core portion 10, an elastic portion 11 that covers the outer peripheral surface of the core portion 10, and a waterproof surface portion 12 that covers the outer peripheral surface of the elastic portion 11. And having.
- the core part 10 is a substantially cylindrical bar made of wood, metal, resin or the like.
- the core part 10 constitutes the center part of the perm rod 1 and extends from one end part of the perm rod 1 to the other end part.
- the permanent rod 1 Since the substantially cylindrical core portion 10 is provided in the central portion of the permanent rod 1, the permanent rod 1 is formed in a substantially cylindrical shape as a whole as described above, and no hollow portion is formed in the vicinity of the central portion. . As a result, heat transfer performance suitable for beautiful wave curl treatment with a cold perm can be obtained. It is also possible to reduce the concentration of the chemical solution to be used and reduce the amount of the chemical solution used.
- the elastic portion 11 having a substantially cylindrical shape is provided on the outer periphery of the core portion 10.
- the elastic part 11 is formed of, for example, an elastic body made of a synthetic resin that is formed in a substantially sponge shape and can be elastically deformed.
- the elastic body forming the elastic portion 11 may be a synthetic resin member or the like that is previously formed into a cylindrical shape, and the core portion 10 may be inserted into the center hole portion thereof.
- the elastic body that forms the elastic portion 11 may be a synthetic resin member or the like formed in a substantially plate shape, and the elastic portion 11 winds the substantially plate-shaped elastic body around the outer peripheral surface of the core portion 10. May be formed.
- the hair wound around the perm rod 1 can be supported by a suitable tension by the deformation of the elastic part 11.
- the core portion 10 and the elastic portion 11 do not need to be completely bonded by an adhesive or the like, and are fixed so that the elastic portion 11 presses the core portion 10 lightly using the elastic force of the elastic portion 11. May be.
- the elastic part 11 may be embedded with an electronic circuit that outputs information on the perm rod 1.
- the electronic circuit is, for example, a microchip, and what kind of perm rod 1 is attached to which position of the head, in what direction, and at what pressure, temperature, and how many hours it is used. Various information such as can be output.
- the practitioner can perform a suitable treatment suitable for each customer accurately and with high efficiency. For example, it is possible to automatically record the usage record of the perm rod 1 that has been manually recorded by the practitioner using the output from the electronic circuit. In addition, since the processing time with the chemical solution can be accurately grasped, a beautiful permanent wave can be obtained with an appropriate treatment time.
- a waterproof surface portion 12 is formed on the outer periphery of the elastic portion 11. As described above, the surface portion 12 is formed so that the surface portion 13 that covers the outer peripheral portion of the perm rod 1 and the surface portion 14 that covers the end portion are continuous. That is, the surface portion 14 is formed so as to cover the end portion of the core portion 10 and the elastic portion 11 continuously from the surface portion 13 covering the outer peripheral surface of the elastic portion 11.
- the surface portion 12 is formed from a rubber material. Thereby, while being able to obtain the outstanding waterproof performance for preventing a chemical
- Pin portions 15 for attaching rubber bands are attached to both ends of the elastic portion 11.
- the pin portion 15 is not fixed to the core portion 10 and the surface portion 13 on the outer peripheral surface side, but is inserted into the elastic portion 11 and fixed only to the elastic portion 11.
- the insertion part of the pin part 15 may be bonded to the elastic part 11 and the surface part 12 with an adhesive in order to waterproof the perm rod 1 and prevent the pin part 15 from coming off.
- the pin portion 15 When the pin portion 15 is fixed to the elastic portion 11, the pin portion 15 and the rubber band hung thereon can move together with the end portion of the elastic portion 11 by deformation of the elastic portion 11. Therefore, the permanent rod 1 can support the hair with a tension capable of suitable movement that is easy to generate a permanent wave.
- FIG. 4 is a cross-sectional view taken along line AA shown in FIG. 3 and shows the vicinity of the portion where the pin portion 15 is inserted.
- the pin portion 15 is formed in a substantially U shape by bending a rod-shaped body made of metal or synthetic resin, and both end portions 16 thereof are inserted into the elastic portion 11.
- the length of the part inserted into the elastic part 11 is about 2 cm, and the length of the part which protrudes outside the end surface of the perm rod 1 is about 1 cm.
- the substantially U-shaped pin portion 15 is attached to the end portion of the permanent rod 1, the work of hanging the rubber band can be easily performed. Specifically, since there is a substantially U-shaped bent portion, a rubber band can be easily hung on the outside. Further, for example, it is also possible to fix the hole portion 17 of the pin portion 15 formed by inserting a substantially U-shaped rod-like body into the elastic portion 11 through a rubber band.
- FIG. 5 is a side view showing the arrangement of the pin portion 15 of the permanent rod 1. As shown in FIG. 5, the distance between the pin portion 15 and the central axis of the permanent rod 1 is substantially equal on both end portions 16 side, and extends in the circumferential direction when viewed from the end portion direction of the permanent rod 1.
- FIG. 6 is a side view showing another example of the arrangement of the pin portions 15 of the permanent rod 1.
- the pin portion 15 may be disposed so as to extend obliquely with respect to the radial direction of the end surface when viewed from the end portion direction of the perm rod 1. That is, the pin portion 15 may be attached so that one end portion 16 side is close to the central axis of the perm rod 1 and the other end portion 16 side is close to the outer peripheral surface.
- the pin portion 15 By providing the pin portion 15 in the arrangement form as shown in FIG. 5 or FIG. 6, it is possible to easily hang a rubber band on the pin portion 15.
- the number of the pin portions 15 is not limited to four, and may be three or less or five or more, and can be appropriately selected according to the size of the permanent rod 1 or the like.
- FIG. 7 is a perspective view showing an example of elastic deformation of the permanent rod 1.
- the elastic part 11 is elastically deformable in the radial direction r and the circumferential direction ⁇ .
- the elastic portion 11 can be contracted in the radial direction r and slightly rotated in the circumferential direction ⁇ to wind the hair around the outer peripheral surface of the permanent rod 1. It is held by a suitable holding force due to repulsion. Therefore, the hair can be prevented from loosening without giving a strong pulling force that causes pain in the scalp, and a beautiful permanent wave can be applied.
- the elastic part 11 is formed so that the vicinity of the center in the axial direction is soft, and the vicinity of both ends is harder than the vicinity of the center. Therefore, when the hair is wound around the permanent rod 1, the amount of deformation of the elastic portion 11 in the radial direction r is large near the center and small near both ends. That is, the permanent rod 1 has a smaller diameter near the center than near both ends. Thereby, the hair bundle wound around the end part of the perm rod 1 becomes easy to flow toward the center of the perm rod 1. Then, the wound hair is difficult to escape from both ends of the perm rod 1 to the outside.
- the configuration in which the vicinity of both ends of the elastic portion 11 is harder than that near the center is formed by inserting rod-like bodies forming the pin portion 15 into both ends of the elastic body 11. Further, the vicinity of both ends of the elastic body 11 can also be hardened by fixing the elastic body 11 so as to be strongly pressed in the radial direction r by the surface portion 12 covering the elastic portion 11 in the vicinity of both ends of the permanent rod 1. Is possible.
- the permanent rod 1 of the present invention it is possible to easily wind the hair bundle and to apply a beautiful permanent wave without causing the customer to feel uncomfortable pain.
- the number of perm rods 1 can be reduced from the conventional one-half to about one-third, and the treatment time can be shortened. Moreover, even if a chemical hair curl lotion with little damage to the hair is used as a permanent chemical solution, the wave curl of the size and shape intended by the practitioner can be applied firmly and beautifully.
- this invention is not limited to the said embodiment, In addition, a various change implementation is possible in the range which does not deviate from the summary of this invention.
Landscapes
- Hair Curling (AREA)
Abstract
Description
なお、本発明は、上記実施形態に限定されるものではなく、その他、本発明の要旨を逸脱しない範囲で、種々の変更実施が可能である。
10 芯部
11 弾性部
12 表面部
13 表面部
14 表面部
15 ピン部
16 端部
17 孔部
r 半径方向
θ 円周方向
Claims (6)
- 外周面に髪の毛が巻き付けられるパーマロッドであって、
円柱状の芯部と、
前記芯部の外周面を覆う弾性体から形成された弾性部と、
前記弾性部の外周面を覆う防水性の表面部と、
前記弾性部の両端部に取り付けられたピン部と、を有することを特徴とするパーマロッド。 - 前記弾性部は、半径方向及び円周方向に弾性変形自在であることを特徴とする請求項1に記載のパーマロッド。
- 前記表面部は、前記弾性体の外周面から連続して前記芯部及び前記弾性部の端部を覆うよう形成されていることを特徴とする請求項1または請求項2に記載のパーマロッド。
- 前記ピン部は、棒状体を曲折することによりU字状に形成されており、その両端部が前記弾性部に挿入されていることを特徴とする請求項1ないし請求項3の何れか1項に記載のパーマロッド。
- 前記表面部は、ゴム材料から形成されていることを特徴とする請求項1ないし請求項4の何れか1項に記載のパーマロッド。
- 前記弾性部には、パーマロッドの情報を出力する電子回路が埋め込まれていることを特徴とする請求項1ないし請求項5の何れか1項に記載のパーマロッド。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2018/011983 WO2019186614A1 (ja) | 2018-03-26 | 2018-03-26 | パーマロッド |
CN201880091285.0A CN111867419A (zh) | 2018-03-26 | 2018-03-26 | 烫发棒 |
US16/981,124 US20210015232A1 (en) | 2018-03-26 | 2018-03-26 | Permanent wave rod |
EP18911460.6A EP3777602B1 (en) | 2018-03-26 | 2018-03-26 | Permanent wave rod |
KR1020207026821A KR102437846B1 (ko) | 2018-03-26 | 2018-03-26 | 파마 로드 |
JP2020510169A JP6940205B2 (ja) | 2018-03-26 | 2018-03-26 | パーマロッド |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2018/011983 WO2019186614A1 (ja) | 2018-03-26 | 2018-03-26 | パーマロッド |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019186614A1 true WO2019186614A1 (ja) | 2019-10-03 |
Family
ID=68059379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2018/011983 WO2019186614A1 (ja) | 2018-03-26 | 2018-03-26 | パーマロッド |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210015232A1 (ja) |
EP (1) | EP3777602B1 (ja) |
JP (1) | JP6940205B2 (ja) |
KR (1) | KR102437846B1 (ja) |
CN (1) | CN111867419A (ja) |
WO (1) | WO2019186614A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR413012A (fr) * | 1910-02-24 | 1910-07-29 | Selina Adella Fisher | Ondulateur pour cheveux |
US3216427A (en) * | 1964-09-08 | 1965-11-09 | Ann M Jefferson | Hair curler |
JPS5660401U (ja) * | 1979-10-17 | 1981-05-22 | ||
JPH0937832A (ja) | 1995-07-26 | 1997-02-10 | Imaajiyu:Kk | パーマネント用毛巻ロッド |
JP2001078824A (ja) | 1999-09-14 | 2001-03-27 | Biyoshitsu Zero:Kk | パーマネント用ロッド |
US6283128B1 (en) * | 2000-08-04 | 2001-09-04 | Roxanne Saxton | Hair roller |
JP2007312903A (ja) * | 2006-05-24 | 2007-12-06 | Ching-Yu Lin | ヘアスタイリング方法及びこれに用いる装置 |
Family Cites Families (13)
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BE389252A (ja) * | 1932-06-15 | 1932-07-30 | ||
FR738605A (fr) * | 1931-07-21 | 1932-12-28 | Bigoudi | |
US2481448A (en) * | 1946-09-20 | 1949-09-06 | Schiller Elda Mae | Ringlet curler |
ZA858335B (en) * | 1984-11-14 | 1986-06-25 | Bristol Myers Co | Heatable flexible hair curlers |
CN2113650U (zh) * | 1992-03-09 | 1992-08-26 | 林国柱 | 烫发用卷棒组件 |
US5727576A (en) * | 1996-01-29 | 1998-03-17 | Eren; Mahire | Multi-purpose hairstyling device |
FR2762975A1 (fr) * | 1996-09-17 | 1998-11-13 | Navarro Rose Marie | Bigoudi pour la realisation de permanentes et de mises en plis de cheveux |
KR20050096249A (ko) * | 2004-03-29 | 2005-10-05 | 곽용완 | 퍼머기 |
EP2133004A1 (en) * | 2008-06-11 | 2009-12-16 | Great Lengths S.r.L. | Expandable curler |
JP2011183010A (ja) * | 2010-03-10 | 2011-09-22 | Morio Kawamoto | ヘアーカーラー |
CN201839975U (zh) * | 2010-10-29 | 2011-05-25 | 李大付 | 弹力烫发杠 |
US8684012B1 (en) * | 2012-05-31 | 2014-04-01 | Denise Lynn Ryan | Remote control rollers |
CN204812560U (zh) * | 2015-06-08 | 2015-12-02 | 谢春奇 | 水能冷烫杠 |
-
2018
- 2018-03-26 JP JP2020510169A patent/JP6940205B2/ja active Active
- 2018-03-26 KR KR1020207026821A patent/KR102437846B1/ko active IP Right Grant
- 2018-03-26 WO PCT/JP2018/011983 patent/WO2019186614A1/ja unknown
- 2018-03-26 US US16/981,124 patent/US20210015232A1/en not_active Abandoned
- 2018-03-26 CN CN201880091285.0A patent/CN111867419A/zh active Pending
- 2018-03-26 EP EP18911460.6A patent/EP3777602B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR413012A (fr) * | 1910-02-24 | 1910-07-29 | Selina Adella Fisher | Ondulateur pour cheveux |
US3216427A (en) * | 1964-09-08 | 1965-11-09 | Ann M Jefferson | Hair curler |
JPS5660401U (ja) * | 1979-10-17 | 1981-05-22 | ||
JPH0937832A (ja) | 1995-07-26 | 1997-02-10 | Imaajiyu:Kk | パーマネント用毛巻ロッド |
JP2001078824A (ja) | 1999-09-14 | 2001-03-27 | Biyoshitsu Zero:Kk | パーマネント用ロッド |
US6283128B1 (en) * | 2000-08-04 | 2001-09-04 | Roxanne Saxton | Hair roller |
JP2007312903A (ja) * | 2006-05-24 | 2007-12-06 | Ching-Yu Lin | ヘアスタイリング方法及びこれに用いる装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3777602A4 |
Also Published As
Publication number | Publication date |
---|---|
JP6940205B2 (ja) | 2021-09-22 |
JPWO2019186614A1 (ja) | 2021-03-18 |
CN111867419A (zh) | 2020-10-30 |
EP3777602A1 (en) | 2021-02-17 |
KR102437846B1 (ko) | 2022-08-29 |
EP3777602B1 (en) | 2023-05-03 |
US20210015232A1 (en) | 2021-01-21 |
EP3777602A4 (en) | 2021-11-17 |
KR20200121354A (ko) | 2020-10-23 |
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