CN209712537U - Rice cooking machine - Google Patents

Rice cooking machine Download PDF

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Publication number
CN209712537U
CN209712537U CN201920215183.7U CN201920215183U CN209712537U CN 209712537 U CN209712537 U CN 209712537U CN 201920215183 U CN201920215183 U CN 201920215183U CN 209712537 U CN209712537 U CN 209712537U
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China
Prior art keywords
pot shape
shape container
rice cooking
cooking machine
outside
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CN201920215183.7U
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Chinese (zh)
Inventor
藤田善行
根岸和善
桥元健太郎
宫下健一
鬼塚法正
川村佳敬
牧野优子
野口敦子
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Mitsubishi Corp
Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Mitsubishi Corp
Mitsubishi Electric Home Appliance Co Ltd
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Abstract

The utility model provides one kind and carries out deaeration in the state that bubble has been sufficiently grown, while heating well-distributed rice cooking machine.Rice cooking machine has: main body, is formed with hollow portion in inside;Pot shape container, is detachably accommodated in the hollow portion of main body, in inner containment heating object;And to the heating part that pot shape container is heated, pot shape container includes central spud, is formed in a pot center for the inside bottom surface of shape container, and periphery becomes inclined central inclined surface;And outside protrusion, it is formed between central spud and the inner sidewall of pot shape container, central spud side becomes inclined outer lateral incline.

Description

Rice cooking machine
Technical field
The utility model relates to a kind of rice cooking machines for improving the heating properties heated to heating object.
Background technique
Conventionally, there is known the pot shape container of heating to be accommodated in the rice cooking machine of main body.Pot shape container is usually will be compound Plate punch process is at made of pot-shaped shape, and the composite plate is using aluminium of nonmagnetic metal etc. as base material, and combination has on the outside Ferrite stainless-steel sheet of magnetic metal etc..Then, the inner surface of pot shape container is implemented at the surfaces such as fluor resin coating Reason.For the purpose of disclosed herein is uniform heating is realized to generate convection current in the heating object in pot shape container, in pot shape The bottom surface of container is provided with the electromagnetic induction heating cooker (referring to patent document 1) of protrusion.In patent document 1, in magnetism Multiple protrusions or recess portion is arranged in the outside of metal, and the magnetic line of force of load coil is made to concentrate on protrusion or recess portion and enhance protrusion Fever.In patent document 1, it by the temperature difference other than protrusion or recess portion and protrusion or recess portion, is produced inside pot shape container Raw multiple tiny convection current, change the convection current of heating object actively, are achieved in uniform heating.
Existing technical literature
Patent document
Patent document 1: No. 4052326 bulletins of Japanese Patent No.
Utility model content
Utility model project to be solved
But in induction heating cooking instrument disclosed in patent document 1, since protrusion or the periphery of recess portion are almost without inclining It is tiltedly upright, therefore the bubble grown at protrusion or recess portion is possible to before reaching the vertex of protrusion or recess portion without complete Growth.In addition, the position bubble other than protrusion or recess portion is possible to carry out deaeration.Moreover, because protrusion or recess portion are only arranged Bubble is not generated in the center of the bottom surface of pot shape container, therefore between the center and side wall of the bottom surface of pot shape container.Therefore, In The convection current that the inside of pot shape container generates generates unevenly, and heating is distributed with may deterioration.
The utility model completed using project as described above as background, is provided and a kind of has been sufficiently grown in bubble Deaeration is carried out under state, while heating well-distributed rice cooking machine.
Means for solving the problems
The rice cooking machine of the first method of the utility model has: main body, is formed with hollow portion in inside;Pot shape container, dress The hollow portion for being accommodated in main body freely is unloaded, in inner containment heating object;And heating part, heating kettle shape container, pot shape hold Device includes central spud, is formed in a pot center for the inside bottom surface of shape container, and periphery becomes inclined central inclined surface;And Outside protrusion is formed between central spud and the inner sidewall of pot shape container, and central spud side becomes inclined outer lateral incline.
The rice cooking machine of the second method of the utility model is the rice cooking machine according to first method, wherein the outside Protrusion is higher than the inside bottom surface in addition to the central spud of the pot shape container, is height identical with the central spud Below.
The rice cooking machine of the Third Way of the utility model is, according to rice cooking machine described in first method or second method, In, the part opposite with the outside protrusion in the outside bottom surface of the pot shape container is thinning with the thickness of the pot shape container Mode be formed with wall thinning part.
The rice cooking machine of the fourth way of the utility model is the rice cooking machine according to Third Way, wherein the wall subtracts Thin portion, which becomes, links the outer of the vertical line and the pot shape container to hang down from the end of the center side of the outside protrusion by straight line The outside bottom of vertical line and the pot shape container that the end of the intersection point of side bottom surface and the inner sidewall side from the outside protrusion is hung down The shape of the intersection point in face.
The rice cooking machine of 5th mode of the utility model is, according to rice cooking machine described in first method or second method, In, the heating part is flat, and the outside protrusion is located at the top in the center of the heating part.
The rice cooking machine of 6th mode of the utility model is, according to rice cooking machine described in first method or second method, In, the heating part becomes the shape of bending, and the outside protrusion is located at the top of the bending part of the heating part.
The rice cooking machine of 7th mode of the utility model is, according to rice cooking machine described in first method or second method, In, the outside protrusion has the height of inside bottom surface 7.5mm~10mm away from the pot shape container.
The rice cooking machine of the eighth mode of the utility model is, according to rice cooking machine described in first method or second method, In, the outer lateral incline has 10 °~15 ° of tilt angle relative to the inside bottom surface of the pot shape container.
The rice cooking machine of 9th mode of the utility model is, according to rice cooking machine described in first method or second method, In, it is also equipped with the ferrite of the central radiated entend of the inside bottom surface from the pot shape container.
The rice cooking machine of tenth mode of the utility model is, according to rice cooking machine described in first method or second method, In, the pot shape container consist of carbon.
The effect of utility model
According to the utility model, since central spud and outside protrusion are respectively provided with central inclined surface and outer lateral incline, So reaching central spud and outside protrusion in the state that bubble is sufficiently grown when through central inclined surface and outer lateral incline Vertex and carry out deaeration.In addition, outside protrusion is formed between central spud and the inner sidewall of pot shape container, therefore in pot shape The inside of container equably generates convection current.Therefore, heating distribution becomes good.
Detailed description of the invention
Fig. 1 is the perspective view for indicating the rice cooking machine 1 of the embodiments of the present invention 1.
Fig. 2 is the cross-sectional view for indicating the rice cooking machine 1 of the embodiments of the present invention 1.
Fig. 3 is the perspective view for indicating the pot shape container 5 of the embodiments of the present invention 1.
Fig. 4 is the perspective view for the inside bottom surface 5a that can be seen to the pot shape container 5 of the embodiments of the present invention 1.
Fig. 5 is the main view for indicating the pot shape container 5 of the embodiments of the present invention 1.
Fig. 6 is the cross-sectional view for indicating the pot shape container 5 of the embodiments of the present invention 1.
Fig. 7 is the cross-sectional view for indicating the wall thinning part 56 of pot shape container 5 of the embodiments of the present invention 1.
Fig. 8 is the schematic diagram for indicating the position of outside protrusion 54 of the embodiments of the present invention 1.
Fig. 9 is the schematic diagram of the position of the outside protrusion 54 for the variation for indicating the embodiments of the present invention 1.
Figure 10 is the cross-sectional view for indicating the position of ferrite 6 of the embodiments of the present invention 1.
Figure 11 is the signal for indicating the bubble B generated in the inside of the pot shape container 5 of the embodiments of the present invention 1 Figure.
Figure 12 is the signal for indicating the bubble B generated in the inside of the pot shape container 5 of the embodiments of the present invention 1 Figure.
Figure 13 is the schematic diagram for indicating the bubble B generated in the inside of the pot shape container 5 of comparative example.
Figure 14 is the cross-sectional view for indicating the position of ferrite 6 of comparative example.
Specific embodiment
Embodiment 1.
Hereinafter, being illustrated referring to embodiment of the attached drawing to the rice cooking machine of the utility model.Fig. 1 is to indicate that this is practical new The perspective view of the rice cooking machine 1 of the embodiment 1 of type, Fig. 2 are the section views for indicating the rice cooking machine 1 of the embodiments of the present invention 1 Figure.As shown in Figures 1 and 2, rice cooking machine 1 is, for example, electromagnetic induction heating type cooking device, has main body 2, lid 3,4 and of heating part Pot shape container 5.Main body 2 becomes the bottomed cylindrical of opening 21 in upper surface, is formed with hollow portion 22 in inside.Lid 3 is opened and closed It is installed on the upper surface of main body 2 freely, blocks the opening 21 of main body 2.Heating part 4 is set to the bottom of the hollow portion 22 of main body 2 Face, in the shape of bending.Heating part 4 be, for example, heating coil, the inducing eddy-current in pot shape container 5 and to pot shape container 5 into Row heating.In addition, heating part 4 be also possible to it is flat.
Fig. 3 is the perspective view for indicating the pot shape container 5 of the embodiments of the present invention 1, and Fig. 4 is to indicate to see to this The perspective view of the inside bottom surface 5a of the pot shape container 5 of the embodiment 1 of utility model, Fig. 5 are the implementation for indicating the utility model The main view of the pot shape container 5 of mode 1.As shown in Fig. 3~Fig. 5, pot shape container 5 is in bottomed cylindrical, is filled via supporting mass 51 Unload the hollow portion 22 for being accommodated in main body 2 freely.For pot shape container 5 in inner containment heating object, heating object is such as rice.Pot Shape container 5 for example consist of carbon.The pot shape container 5 consisting of carbon is inductively heated and self-heating.Compared with metal material, magnetic The penetration depth of the line of force is big, therefore the heat conducted outward and being formed as heavy wall becomes smaller, and heat is difficult to escape into outside, no It is easy cooling.In addition, pot shape container 5 can also be made of copper, aluminium, stainless steel or iron etc..
Fig. 6 is the cross-sectional view for indicating the pot shape container 5 of the embodiments of the present invention 1.As shown in fig. 6, pot shape container 5 With central spud 52 and outside protrusion 54.Central spud 52 is formed in the center of the inside bottom surface 5a of pot shape container 5, periphery at For inclined central inclined surface 53.Central spud 52 is gradually tilted in substantially round shape from the vertex of central spud 52 towards periphery Ground decline.Outside protrusion 54 is formed between central spud 52 and the inner sidewall 5c of pot shape container 5, and 52 side of central spud, which becomes, inclines Oblique outer lateral incline 55.Outside protrusion 54 is annular in shape, gradually tilts from the vertex of outside protrusion 54 towards 52 side of central spud Ground decline.Outside protrusion 54 is and central spud 52 than the inside bottom surface 5a high other than central spud 52 of pot shape container 5 Below identical height.
Here, it is 7.5mm~10mm's that central spud 52 and outside protrusion 54, which have the inside bottom surface 5a away from pot shape container 5, Height H.In addition, central inclined surface 53 and outer lateral incline 55 have 10 °~15 ° relative to the inside bottom surface 5a of pot shape container 5 Tilt angle theta.In addition, outside protrusion 54 is not limited to ring-type, it can also be arranged by multiple protrusions and circlewise be constituted.Pot shape holds The part opposite with outside protrusion 54 in the outside bottom surface 5b of device 5 is formed with wall in the thinning mode of the thickness of pot shape container 5 Thinning part 56.
Fig. 7 is the cross-sectional view for indicating the wall thinning part 56 of pot shape container 5 of the embodiments of the present invention 1.Such as Fig. 7 institute Show, wall thinning part 56 is formed as the outside bottom surface of the vertical line to hang down from the end of the center side of outside protrusion 54 Yu pot shape container 5 The friendship of the outside bottom surface 5b of vertical line and pot shape container 5 that the end of the intersection point of 5b and the side inner sidewall 5c from outside protrusion 54 is hung down Point connects junction configuration by straight line S.That is, wall thinning part 56 is in by the line segment of the shape horizontal dislocation (offset) of outside protrusion 54 Junction configuration is connected by straight line S with the intersection point at two positions of the outside bottom surface 5b of pot shape container 5.Here, wall thinning part 56 with The mode of the constant wall thickness of pot shape container 5 is formed.
Fig. 8 is the schematic diagram for indicating the position of outside protrusion 54 of the embodiments of the present invention 1.As shown in figure 8, outer Side protrusion 54 is located at the top of the bending part 4c of heating part 4.As the water for above the bending part 4c of angle origin being heating part 4 The magnetic force line overlap of the rake 4b of the magnetic line of force and heating part 4 of flat portion 4a and part that the magnetic line of force is concentrated.In this way, in this implementation In mode 1, outside protrusion 54 is configured in the part that the magnetic line of force is concentrated.
Fig. 9 is the schematic diagram of the position of the outside protrusion 54 for the variation for indicating the embodiments of the present invention 1.Such as figure Shown in 9, in the case where heating part 104 is flat, outside protrusion 54 is located at the top in the center of heating part 4.In heating part 104 It is the part that the magnetic line of force of heating part 104 is concentrated above centre.In this way, in variation, also in the same manner as embodiment 1, outside Side protrusion 54 is configured in the part that the magnetic line of force is concentrated.
Figure 10 is the cross-sectional view for indicating the position of ferrite 6 of the embodiments of the present invention 1.As shown in figure 9, cooking Machine 1 has multiple ferrites 6, and ferrite 6 is extended radially from the center of the inside bottom surface 5a of pot shape container 5.In this implementation In mode 1, it is provided with 4 ferrites 6.
Figure 11 is the signal for indicating the bubble B generated in the inside of the pot shape container 5 of the embodiments of the present invention 1 Figure.As shown in figure 11, on the outside at protrusion 54, bubble B is conducted and is grown along outer lateral incline 55, is carried out when reaching vertex Deaeration.Here, being illustrated to the growth of bubble B.By the way that convex form is arranged on pot shape container 5, promote the deaeration of bubble B. In general, bubble B rests on the position of generation if inclined surface is not present when generating bubble B, at the position of generation, growth is gone forward side by side Row deaeration.Therefore, by the way that inclined surface is arranged, the position for carrying out deaeration can be controlled.Bubble B is towards the vertex of convex form as a result, Or preferred deaeration point movement, deaeration is carried out on vertex or preferred deaeration point.If bubble B passes through, heat is easy conduction.
Figure 12 is the signal for indicating the bubble B generated in the inside of the pot shape container 5 of the embodiments of the present invention 1 Figure.As shown in figure 12, in the case where bubble B is produced in the plane, bubble B is not moved and is grown at the position, and is carried out Deaeration and rise.In contrast, in the case where bubble B is produced in inclined surface, along inclined surface while larger growth Rise and advance, is easy to carry out deaeration at the position that tilt angle changes.Here, the situation that tilt angle in inclined surface is excessive Under, although the movement of bubble B becomes faster, growth does not catch up with and crosses deaeration point in the state of vesicle.At this point, if convex form Height it is higher than the height of the bubble B of boiling, then bubble B is rested near convex form.But in the case where carrying out washing rice, Hook may be generated, coating can be peeled off because of damage.In addition, in the case where the tilt angle of inclined surface is excessively gentle, In Deaeration is carried out before reaching deaeration point.In the case where cooking, in order to ensure penetrating the bubble B of rice, preferably bubble B is becoming Rise after more than defined size in deaeration point.In present embodiment 1, by by central spud 52 and outside protrusion 54 Height is set as 7.5mm~10mm, and the tilt angle of central inclined surface 53 and outer lateral incline 55 is set as 10 °~15 °, meal temperature Rising it is good, the state of rice is also good.
Figure 13 is the schematic diagram for the bubble B for indicating that the inside of the pot shape container 105 of comparative example generates.As shown in figure 13, In In comparative example, due to not set outside protrusion 54, bubble B is difficult to the inner sidewall in central spud 52 and pot shape container 105 Rise between 5c.Therefore, heat is difficult to be transmitted between central spud 52 and the inner sidewall 5c of pot shape container 105.Therefore, than Compared in example, the heating distribution of the inside of pot shape container 105 is difficult to optimize.In contrast, in present embodiment 1, such as Figure 12 institute Show, due to being provided with outside protrusion 54 between central spud 52 and the inner sidewall 5c of pot shape container 5, during bubble B passes through It entreats between protrusion 52 and the inner sidewall 5c of pot shape container 5.Therefore, heat is easy to be transmitted to central spud 52 and pot shape container 5 Between inner sidewall 5c.Therefore, heating distribution becomes good.
In addition, outside protrusion 54 is located at the top of the bending part 4c of heating part 4.In this way, since outside protrusion 54 is configured at The part that the magnetic line of force is concentrated, therefore magnetic flux is impregnated with and the heat generated by the electromagnetic induction heating of heating part 4 can be made to the greatest extent may be used It can be easily conducted to outside protrusion 54.In addition, outside protrusion 54 is located at the top in the center of heating part 4 in variation.This Sample, since outside protrusion 54 is configured at the part of magnetic line of force concentration, magnetic flux is impregnated with and can make the electromagnetism by heating part 4 Induction heating and generate heat be transmitted to as easily as possible outside protrusion 54.
Moreover, the part opposite with outside protrusion 54 in the outside bottom surface 5b of pot shape container 5 is with the thickness of pot shape container 5 Thinning mode is formed with wall thinning part 56.Make a pot constant wall thickness for shape container 5 as a result,.Therefore, outside is provided with by increasing The wall thickness of the part of protrusion 54, is able to suppress following situations, that is, the magnetic flux from heating part 4 enters, and adds more than by electromagnetic induction The boundary for the depth that the magnetic flux of heat is impregnated with deteriorates to heat transfer.Here, wall thinning part 56 is formed as from outside protrusion 54 Inner sidewall 5c of the vertical line that the end of center side is hung down with the intersection point of the outside bottom surface 5b of pot shape container 5 and from outside protrusion 54 The intersection point of the outside bottom surface 5b of vertical line and pot shape container 5 that the end of side is hung down connects junction configuration by straight line S.Inhibit as a result, The wall thickness of outside protrusion 54 is excessively thinning and leads to pot broken strength deterioration of the pendant of shape container 5.That is, in present embodiment 1, it can Ensure a pot intensity for shape container 5 while the wall thickness of pot shape container 5 is thinned.
In addition, ferrite 6 is extended radially from the center of the inside bottom surface 5a of pot shape container 5.In this way, by by iron oxygen Body 6 configures outward from the center of cricoid outside protrusion 54, and the concentration of magnetic flux becomes strong, convex in the outside of pot shape container 5 Further promote electromagnetic induction heating in portion 54.
Figure 14 is the cross-sectional view for indicating the position of ferrite 106 of comparative example.As shown in figure 14, in the rice cooking machine of comparative example In 1, ferrite 106 is configured to be positioned against outside from the center for deviating from pot shape container 5.In this case, magnetic flux is almost It does not concentrate, it is difficult to promote electromagnetic induction heating.In contrast, in present embodiment 1, by being configured to ferrite 6 from ring The center of the outside protrusion 54 of shape becomes strong, further promotees in the outside protrusion 54 of pot shape container 5 towards outside, the concentration of magnetic flux Into electromagnetic induction heating.Therefore, performance of cooking improves.
According to the present embodiment 1, since central spud 52 and outside protrusion 54 have central inclined surface 53 and outside inclination Face 55, therefore when by central inclined surface 53 and outer lateral incline 55, bubble B reaches central spud in the state of sufficiently growing 52 and outside protrusion 54 vertex and carry out deaeration.In addition, outside protrusion 54 is formed in the interior of central spud 52 and pot shape container 5 Between side wall 5c, therefore uniform convection current is generated in the inside of pot shape container 5.Therefore, heating distribution becomes good.In this way, root According to present embodiment 1, the movement of bubble B can be easily controlled.In addition, in present embodiment 1, by control bubble B The position risen is easy to generate so-called crab hole.In addition, the meal during cooking can be made by the position in control crab hole The distribution uniformity that temperature rises.Therefore, the improvement of taste of food is brought.In addition, present embodiment 1 can be with all rice cooking machines 1 is corresponding.
Description of symbols
1 rice cooking machine, 2 main bodys, 3 lids, 4 heating parts, 4a horizontal part, 4b rake, 4c bending part, 5 pots of shape containers, in 5a Side bottom surface, 5b outside bottom surface, 5c inner sidewall, 6 ferrites, 21 openings, 22 hollow portions, 51 supporting masses, 52 central spuds, 53 centers Inclined surface, 54 outside protrusions, 55 outer lateral inclines, 56 wall thinning parts, 101 rice cooking machines, 104 heating parts, 105 pots of shape containers, 106 Ferrite, B bubble, S straight line.

Claims (10)

1. a kind of rice cooking machine, wherein have:
Main body is formed with hollow portion in inside;
Pot shape container, is detachably accommodated in the hollow portion of the main body, in inner containment heating object;And
The pot shape container is heated in heating part,
The pot shape container includes
Central spud, is formed in the center of the inside bottom surface of the pot shape container, and periphery becomes inclined central inclined surface;And
Outside protrusion is formed between the central spud and the inner sidewall of the pot shape container, and the central spud side becomes Inclined outer lateral incline.
2. rice cooking machine according to claim 1, wherein the outside protrusion is than the pot shape container except the center is convex Inside bottom surface other than portion is high, is height identical with the central spud or less.
3. rice cooking machine according to claim 1 or 2, wherein in the outside bottom surface of the pot shape container with the outside The opposite part in protrusion is formed with wall thinning part in the thinning mode of the thickness of the pot shape container.
4. rice cooking machine according to claim 3, wherein
The wall thinning part become by straight line link the vertical line that hangs down from the end of the center side of the outside protrusion with it is described The vertical line and the pot shape that the intersection point of outside bottom surface of pot shape container and the end of the inner sidewall side from the outside protrusion are hung down The shape of the intersection point of the outside bottom surface of container.
5. rice cooking machine according to claim 1 or 2, wherein
The heating part is flat,
The outside protrusion is located at the top in the center of the heating part.
6. rice cooking machine according to claim 1 or 2, wherein
The heating part becomes the shape of bending,
The outside protrusion is located at the top of the bending part of the heating part.
7. rice cooking machine according to claim 1 or 2, wherein
The outside protrusion has the height of inside bottom surface 7.5mm~10mm away from the pot shape container.
8. rice cooking machine according to claim 1 or 2, wherein
The outer lateral incline has 10 °~15 ° of tilt angle relative to the inside bottom surface of the pot shape container.
9. rice cooking machine according to claim 1 or 2, wherein
It is also equipped with the ferrite of the central radiated entend of the inside bottom surface from the pot shape container.
10. rice cooking machine according to claim 1 or 2, wherein
The pot shape container consist of carbon.
CN201920215183.7U 2018-03-20 2019-02-20 Rice cooking machine Active CN209712537U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-052333 2018-03-20
JP2018052333A JP6837448B2 (en) 2018-03-20 2018-03-20 rice cooker

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CN (1) CN209712537U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115919130B (en) * 2022-07-13 2023-09-08 江门市浩盈不锈钢制品有限公司 Non-stick pan fire balancing system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3713217B2 (en) * 2001-05-29 2005-11-09 象印マホービン株式会社 Inner pot for rice cooker
JP2003125928A (en) * 2001-10-19 2003-05-07 Fuji Electric Co Ltd Electromagnetic cooker vessel
JP2004357886A (en) * 2003-06-04 2004-12-24 Tiger Vacuum Bottle Co Ltd Induction heating type cooker
JP4362523B2 (en) * 2007-03-09 2009-11-11 三菱電機株式会社 rice cooker
JP6456128B2 (en) * 2014-12-10 2019-01-23 三菱電機株式会社 Inner pot and rice cooker

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JP6837448B2 (en) 2021-03-03

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