CN109328112B - Grinding horizontal rice mill - Google Patents

Grinding horizontal rice mill Download PDF

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Publication number
CN109328112B
CN109328112B CN201780037756.5A CN201780037756A CN109328112B CN 109328112 B CN109328112 B CN 109328112B CN 201780037756 A CN201780037756 A CN 201780037756A CN 109328112 B CN109328112 B CN 109328112B
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China
Prior art keywords
polishing
rice
grinding
roller
air
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CN201780037756.5A
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Chinese (zh)
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CN109328112A (en
Inventor
梶原一信
野中和人
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Satake Corp
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Satake Corp
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Priority to JP2016120673A priority Critical patent/JP6808991B2/en
Priority to JP2016-120673 priority
Application filed by Satake Corp filed Critical Satake Corp
Priority to PCT/JP2017/020503 priority patent/WO2017217246A1/en
Publication of CN109328112A publication Critical patent/CN109328112A/en
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Publication of CN109328112B publication Critical patent/CN109328112B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B3/00Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
    • B02B3/06Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of screws or worms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/06Cleaning involving contact with liquid using perforated drums in which the article or material is placed

Abstract

The invention provides a grinding type horizontal rice mill, which can ensure the fluidity of rice grains and improve the rice milling efficiency even if the supply amount of the rice grains is increased and the fullness of the rice grains in a whitening chamber is improved.

Description

Grinding horizontal rice mill
Technical Field
The invention relates to a grinding type horizontal rice mill for whitening rice grains by using grinding rollers.
Background
Conventionally, there has been known a horizontal rice mill of a grinding type for whitening rice grains using a grinding roller having a grinding grain layer formed on an outer peripheral surface thereof (see patent documents 1 and 2).
Fig. 8 shows a grinding type horizontal rice mill disclosed in patent document 1.
Patent document 1 describes a rice milling machine 1 that: a grinding rotor 18 is rotatably supported in the horizontal direction, a porous wall bran-removing polishing cylinder 19 is provided around the grinding rotor 18, a polishing chamber 20 is formed between the grinding rotor 18 and the porous wall bran-removing polishing cylinder 19, and a resistance plate 23 is provided on the rice grain discharge port 21 side of the polishing chamber 20.
According to the rice milling machine disclosed in patent document 1, rice grains entering the polishing chamber 20 are gently polished by contacting the rotating polishing rotor 18, bran is removed from the holes of the pore wall bran removal polishing cylinder 19, and the polished rice grains are discharged to the outside through the rice grain discharge port 21 by pushing the resistance plate 23 open.
However, the rice milling machine disclosed in patent document 1 has the following problems: in order to improve rice milling efficiency, if the supply amount of rice grains is increased to increase the fullness of the rice grains in the grain whitening chamber, the fluidity of the rice grains is reduced to cause clogging.
Fig. 9 shows a grinding type horizontal rice mill disclosed in patent document 2.
Patent document 2 describes the following grain mill: the emery roll 14 is rotatably mounted in the wire mesh 6, a gap between the wire mesh 6 and the emery roll 14 is defined as a polishing chamber 15, a pressing cover 27 is provided in the vicinity of a discharge port formed at one end side of the polishing chamber 15, the pressing cover 27 is biased toward the polishing chamber 15 by a weight 28, and a plurality of resistance claws 29 are provided in the polishing chamber 15 and on the inner surface of the wire mesh 6.
According to the grain mill described in patent document 2, the brown rice fed into the polishing chamber 15 is polished by the emery roll 14 to remove the bran layer, polishing is performed while the brown rice is fed to the discharge port side, and the rice grains that become polished rice are discharged outside the facility through the pressing cover 27 to the discharge port 26, thereby milling the rice.
Further, according to the grain mill described in patent document 2, the angle of the resistance claw 29 provided in the whitening chamber 15 is changed to change the resistance to rice grains, thereby preventing uneven mashing and adjusting the whitening ability (whiteness degree).
However, the grain mill described in patent document 2 has the following problems: in order to improve rice milling efficiency, if the supply amount of rice grains is increased to increase the fullness of the rice grains in the grain whitening chamber, the fluidity of the rice grains is reduced to cause clogging.
Documents of the prior art
Patent document
Patent document 1: japanese examined patent publication (Kokoku) No. 2-18138
Patent document 2: japanese Kokai publication Sho 62-114633
Disclosure of Invention
Problems to be solved by the invention
Accordingly, an object of the present invention is to provide a horizontal rice husking machine of a grinding type capable of improving rice husking efficiency while securing fluidity of rice grains even when a supply amount of rice grains is increased to increase a fullness of rice grains in a grain whitening chamber.
Means for solving the problems
In order to achieve the above object, a horizontal rice mill of a grinding type according to an embodiment of the present invention includes a polishing drum formed of a porous wall and a grinding roller rotatably disposed in the polishing drum, wherein a polishing chamber is formed between the polishing drum and the grinding roller, rice grains supplied from one end side of the polishing chamber are polished in the polishing chamber, and the polished rice grains are discharged from the other end side of the polishing chamber, and is characterized in that a groove for stirring extending in an axial direction is formed in an outer circumferential surface of the polishing roller, the outer circumferential surface of the groove having a circular cross section perpendicular to the axial direction, and a plurality of air ejection holes are formed in the groove, and air is ejected from the air ejection holes while the grinding roller is rotationally driven, thereby polishing the rice grains in the polishing chamber.
In the horizontal rice mill of the present embodiment, the grinding roller has a circular outer peripheral surface, the outer peripheral surface of the grinding roller is formed with a groove for stirring extending in the axial direction, and a plurality of air ejection holes are formed in the groove, and air can be ejected from the air ejection holes while the grinding roller is rotationally driven to perform whitening in the whitening chamber.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that the rice grain polishing chamber is provided with a discharge port on the other end side thereof, the discharge port is closed by a resistance plate to which a predetermined urging force is applied, and the rice grain polished in the rice grain polishing chamber is discharged from the discharge port provided on the other end side of the rice grain polishing chamber by pushing open the resistance plate.
Therefore, according to the horizontal rice mill of the present embodiment, even when the rice grain supply amount is increased to increase the fullness of the rice grains in the grain whitening chamber, the rice milling efficiency can be improved while ensuring the fluidity of the rice grains.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that the air blowing holes have openings for blowing air rearward in the rotation direction of the grinding rollers in the groove.
In the horizontal rice mill of the present embodiment, the air injection holes have openings for injecting air toward the rear in the rotation direction of the grinding roller in the tank, so that the rice grains can be agitated by the air and the bran generated in the whitening chamber can be efficiently discharged from the porous wall of the whitening cylinder.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that the air blowing holes have openings for blowing air forward in the rotation direction of the grinding rollers in the groove.
In the horizontal rice mill of the present embodiment, the air injection holes have openings for injecting air toward the front side in the rotation direction of the grinding roller in the tank, so that rice grains can be efficiently stirred by the air and bran generated in the polishing chamber can be discharged from the porous wall of the polishing drum.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that the air blowing hole has an opening for blowing air toward the one end side of the whitening chamber in the groove.
In the horizontal rice mill of the present embodiment, the air injection holes have openings for injecting air toward the one end side of the whitening chamber in the tank, so that the grains can be efficiently agitated by the air.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that the air blowing hole has an opening for blowing air toward the other end side of the whitening chamber in the groove.
In the horizontal rice mill of the present embodiment, the air injection holes have openings for injecting air toward the other end side of the polishing chamber in the tank, so that the air can agitate the rice grains and improve the fluidity in the rice grain conveying direction.
In the horizontal rice mill according to another embodiment of the present invention, preferably, the front side of the groove in the rotation direction of the grinding roller is formed by a gentle slope, and the rear side thereof is formed by a steep slope.
In the horizontal rice mill of the present embodiment, since the front side of the groove in the rotation direction of the grinding roller is formed by the gentle slope and the rear side is formed by the steep slope, the rice grains flowing into the groove through the gentle slope are forcibly removed through the steep slope, and the rice grains can be stirred more efficiently.
In the horizontal rice mill according to another embodiment of the present invention, the grinding roller preferably has an outer peripheral surface on which a superabrasive grain layer is formed.
In the horizontal rice mill of the present invention, the grinding roller has an outer peripheral surface on which a superabrasive layer is formed, and therefore, the grinding ability of the grinding roller is improved, which is effective in improving rice milling efficiency.
In the horizontal rice mill according to another embodiment of the present invention, it is preferable that a resistance member is provided on an inner surface of the polishing drum, and the resistance member applies resistance to rice grains moving in the polishing chamber.
In the horizontal rice mill of the present embodiment, the resistance member for applying resistance to the rice grains moving in the polishing chamber is provided on the inner surface of the polishing drum, and therefore, even when the supply amount of the rice grains is increased and the fullness of the rice grains in the polishing chamber is increased in the horizontal rice mill of the patent document 2, the fluidity of the rice grains can be secured and the rice milling efficiency can be improved.
In the horizontal rice mill according to another embodiment of the present invention, the grinding roller is preferably formed so as to be dividable into a plurality of rollers.
In the horizontal rice mill of the present embodiment, the grinding roller is divided into a plurality of rollers, so that the assembly and replacement are easy, and the work such as assembly can be performed by one worker. In addition, when the abrasive grain layer of a part of the polishing roll is worn, only the roll required for replacement may be replaced, which is advantageous in terms of cost as compared with a case where the entire polishing roll is replaced.
ADVANTAGEOUS EFFECTS OF INVENTION
The present invention can provide a horizontal rice mill of a grinding type which can ensure the fluidity of rice grains and improve the rice milling efficiency even when the supply amount of the rice grains is increased and the fullness of the rice grains in the grain whitening chamber is improved.
Drawings
Fig. 1 is a schematic sectional view of a grinding type horizontal rice mill according to an embodiment of the present invention.
Fig. 2 is a front view of the grinding roller.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a sectional perspective view of fig. 2.
Fig. 5 is a perspective view of the cylindrical roller.
Fig. 6 is an explanatory view of the operation of the polishing roller.
Fig. 7 is another explanatory view of the operation of the polishing roller.
Fig. 8 is an explanatory view of a conventional horizontal rice mill of a grinding type.
Fig. 9 is an explanatory view of a conventional horizontal rice mill of a grinding type.
Detailed Description
Embodiments of the present invention will be described based on the drawings.
Fig. 1 is a schematic sectional view showing a grinding type horizontal rice mill according to an embodiment of the present invention.
The horizontal rice mill 100 of the present embodiment includes a grain conveyor 110 and a polishing unit 120.
The grain conveying unit 110 includes a cylindrical grain conveying cylinder 111 and a screw roller 112 disposed in the grain conveying cylinder 111, and a grain conveying chamber 113 for conveying rice grains is formed between the grain conveying cylinder 111 and the screw roller 112.
The grain conveying cylinder 111 has a raw material supply port 114 formed at an upper portion on one end side, a raw material supply cylinder 115 standing on the raw material supply port 114, and an opening at an end on the other end side. The screw roller 112 is attached to a main shaft 116 that is rotationally driven by a drive motor, not shown.
The polishing section 120 includes a cylindrical or polygonal tubular polishing cylinder 121 formed of a porous wall such as a wire mesh, and a polishing roller 122 disposed in the polishing cylinder 121 and having the same axis as the screw roller 112, and a polishing chamber 123 for polishing rice grains is formed between the polishing cylinder 121 and the polishing roller 122.
Here, the polishing roller 122 has an outer peripheral surface having a circular cross section perpendicular to the axial direction, and a superabrasive grain layer formed by electrodepositing superabrasive grains made of cBN abrasive grains and diamond abrasive grains is formed on the outer peripheral surface.
The grain polishing chamber 123 is communicated with the grain conveying chamber 113 at one end side, rice grains transferred from the grain conveying chamber 113 are polished in the grain polishing chamber 123, while a discharge port 124 for discharging polished rice grains is provided at the other end side, and the discharge port 124 is locked by a damper 125 to which a predetermined biasing force is applied by adjustment of a weight or the like.
A plurality of air jet holes 126 are formed in the polishing roller 122, and air supplied into the polishing roller 122 from an air supply source not shown is jetted from the air jet holes 126.
A bran collecting chamber 127 is provided around the bran refining chamber 123, and the bran collecting chamber 127 communicates with a bran collecting pipe 128 provided below.
In the horizontal rice mill 100 of the present embodiment, the raw rice R supplied from the raw material supply cylinder 115 to the grain conveying chamber 113 through the raw material supply port 114 is transferred to the whitening chamber 123 by the screw roller 112.
The raw rice R transferred to the whitening chamber 123 is whitened by the polishing action of the polishing roller 122, and is moved to the discharge port 124, and is discharged by pushing the resistance plate 125 open.
In the polishing chamber 123, bran is generated by polishing of the raw rice R, but the bran is discharged from the holes of the polishing cylinder 121 to a bran collecting duct 128 through a bran collecting chamber 127 by air blown from air blowing holes 126 formed in the polishing roller 122.
Fig. 2 is an explanatory view of the grinding roller and shows a front view. In addition, fig. 3 shows a left side view of fig. 2.
In the embodiment of the present invention, a plurality of stirring grooves 131 linearly extending in parallel with the central axis of the polishing roller 122 are formed in the circular outer peripheral surface of the polishing roller 122. The groove 131 has a V-shaped cross section, and the nozzle hole 126 is formed to open on the V-shaped inclined surface constituting the groove 131.
Fig. 4 shows a sectional perspective view of fig. 2.
The polishing roller 122 has a hollow portion 132 therein. An air inlet 133 is provided at one end of the polishing roller 122, that is, at an end disposed on the discharge port 124 side of the whitening chamber 123, and the air inlet 133 is used to introduce air f1 supplied from an air supply source, not shown, into the hollow portion 132 of the polishing roller 122.
Fig. 5 shows a perspective view of a cylindrical roller constituting the polishing roller.
The polishing roller 122 is composed of a plurality of cylindrical rollers 134. The cylindrical roller 134 has a mounting portion 135 at the center with respect to the main shaft 116, and a plurality of support columns 136 radially provided on the mounting portion 135, and supports a cylindrical body 137 formed on the outer peripheral surface of the superabrasive layer by the support columns 136.
In the polishing roller 122, the air blowing holes 126 opened to the V-shaped inclined surfaces constituting the grooves 131 communicate with the hollow portion 132, and the air f2 introduced into the hollow portion 132 of the polishing roller 122 from the air introduction port 133 is blown from the openings in the grooves 131 through the air blowing holes 126 to the air f 3.
Fig. 6 is a left side view of fig. 2 and shows an operation explanatory view of the grinding roller.
In the embodiment of the present invention, the openings of the air ejection holes 126 are formed in the inclined surface of the stirring groove 131 of the grinding roller 122 located on the front side in the rotation direction a of the grinding roller 122.
In the embodiment of the present invention, the rice grains are whitened in the whitening chamber 123 by blowing air f3 from the air blowing holes 126 while the grinding roller 122 is rotationally driven, so that the rice grains whitened by the grinding action of the grinding roller 122 in the whitening chamber 123 are agitated by the plurality of agitation grooves 131 and also agitated by the air blown from the air blowing holes 126, and thus the fluidity is significantly improved.
Therefore, according to the horizontal rice milling machine 100 of the embodiment of the present invention, even when the supply amount of rice grains is increased and the fullness of the rice grains in the whitening chamber 123 is increased, the fluidity of the rice grains can be ensured as compared with the conventional horizontal rice milling machine, and therefore the rice milling efficiency can be improved.
In addition, according to the horizontal rice mill 100 of the polishing type according to the embodiment of the present invention, the air is blown out from the air blowing holes 126 toward the rear side of the rotation direction a of the polishing roller 122, and the bran generated in the whitening chamber 123 can be effectively discharged from the holes of the whitening cylinder 121.
Fig. 7 is another embodiment of the present invention, and is an explanatory view showing another operation of the polishing roll.
In another embodiment of the present invention, the openings of the air ejection holes 126 are formed in the stirring groove 131 of the polishing roller 122 on the inclined surface located on the rear side in the rotation direction a of the polishing roller 122.
According to the horizontal rice mill 100 of another embodiment of the present invention, since the air f3 is blown from the air blowing holes 126 toward the front side of the rotation direction a of the grinding rollers 122, the rice grains whitened by the grinding action of the grinding rollers 122 in the whitening chamber 123 are efficiently agitated by the air blown from the air blowing holes 126.
Therefore, according to the horizontal rice mill 100 of another embodiment of the present invention, when the supply amount of rice grains is increased and the fullness of the rice grains in the whitening chamber 123 is increased, the fluidity of the rice grains can be further ensured as compared with the conventional horizontal rice mill, and therefore the rice milling efficiency can be further improved.
In an embodiment of the present invention, the air injection hole 126 may have an opening for injecting air to the side of the grain whitening chamber 123 from which the rice grains are supplied.
If the air jet holes 126 have openings for jetting air toward the side of the grain polishing chamber 123 from which grains are supplied, the grains can be agitated more efficiently by the air.
In the embodiment of the present invention, the air jet holes 126 may have openings for jetting air to the side from which rice grains are discharged from the whitening chamber 123.
If the discharge holes 126 have openings for discharging air to the side from which the rice grains are discharged from the grain whitening chamber 123, the rice grains can be agitated by the air, and the fluidity in the transportation direction of the rice grains can be improved.
In the embodiment of the present invention, the stirring groove 131 may be formed on the front side in the rotation direction of the polishing roller 122 by a gentle slope, and on the rear side in the rotation direction by a steep slope.
If the groove 131 is formed on the front side in the rotation direction of the grinding roller 122 by a gentle slope and on the rear side in the rotation direction by a steep slope, rice grains flowing into the groove 131 through the gentle slope are forcibly discharged through the steep slope, and thus rice grains can be more efficiently stirred.
In the embodiment of the present invention, since the polishing roller 122 is configured by combining a plurality of dividable cylindrical rollers 134, the assembly and replacement of the polishing roller 122 are easy, and each operation can be performed by one worker.
In addition, when a part of the abrasive grain layer of the polishing roll 122 is worn away, only the cylindrical roll 134 required for replacement may be replaced, which is advantageous in terms of cost as compared with the case where the entire polishing roll is replaced.
In the above-described embodiment of the present invention, the grinding type horizontal rice mill 100 has been described by taking as an example the case where no resistance claws are provided in the polishing chamber 123, but as in the case of the grinding type horizontal rice mill described in patent document 2 shown in fig. 9, when the resistance claws that apply resistance to rice grains moving in the polishing chamber are provided, the rice milling efficiency can be improved while securing the fluidity of the rice grains when the supply amount of the rice grains is increased and the fullness of the rice grains in the polishing chamber is improved.
The present invention is not limited to the above-described embodiments, and it is needless to say that the configuration thereof can be appropriately modified without departing from the scope of the invention.
Industrial applicability of the invention
The horizontal rice mill of the present invention is useful for improving the rice milling efficiency by securing the fluidity of rice grains even when the supply amount of rice grains is increased and the fullness of rice grains in the grain whitening chamber is increased.
Description of the reference numerals
100-grinding horizontal rice mill; 110-grain conveying section; 111-grain delivery cylinder; 112-thread roller; 113-grain conveying chamber; 114-raw material supply port; 115-a raw material supply cylinder; 116 — a main shaft; 120-refined white; 121-fine white cylinder; 122-grinding rolls; 123-refined white room; 124-a discharge port; 125-resistance plate; 126-air blast holes; 127-a bran collecting chamber; 128-bran collection pipeline; 131-groove; 132-hollow; 133-air intake; 134-cylindrical roll; 135-an installation part; 136-a pillar; 137-cylinder; r-raw material rice.

Claims (6)

1. A horizontal rice mill of the grinding type, it has a fine white cylinder formed by porous wall and arranges the grinding roller in the above-mentioned fine white cylinder in a way that can rotate, form the fine white room between above-mentioned fine white cylinder and above-mentioned grinding roller, to the fine white room the rice grain supplied from one end side of the above-mentioned fine white room carries on the fine white, and discharge the rice grain after the fine white from another end side of the above-mentioned fine white room, characterized by that,
the cross section of the grinding roller perpendicular to the axial direction has a circular outer peripheral surface,
a plurality of stirring grooves extending in the axial direction are formed on the circular outer peripheral surface of the grinding roller,
a plurality of air injection holes are formed in the plurality of stirring tanks, and air is injected from the air injection holes while the grinding roll is rotationally driven to perform whitening in the whitening chamber,
the groove is formed with a gentle slope on the front side in the rotation direction of the polishing roller and a steep slope on the rear side, and the air injection hole is formed in the steep slope.
2. An abrasive horizontal rice mill according to claim 1,
the air ejection hole has an opening for ejecting air toward the rear in the rotation direction of the polishing roller in the groove.
3. An abrasive horizontal rice mill according to claim 1,
the air injection hole has an opening for injecting air forward in the rotation direction of the polishing roller in the groove.
4. A grinding type horizontal rice mill according to any one of claims 1 to 3,
the polishing roller has an outer peripheral surface on which a superabrasive layer is formed.
5. A grinding type horizontal rice mill according to any one of claims 1 to 3,
a resistance member is provided on an inner surface of the polishing drum, and the resistance member applies resistance to rice grains moving in the polishing chamber.
6. A grinding type horizontal rice mill according to any one of claims 1 to 3,
the polishing roller is formed so as to be dividable into a plurality of rollers.
CN201780037756.5A 2016-06-17 2017-06-01 Grinding horizontal rice mill Active CN109328112B (en)

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Application Number Priority Date Filing Date Title
JP2016120673A JP6808991B2 (en) 2016-06-17 2016-06-17 Grinding horizontal rice mill
JP2016-120673 2016-06-17
PCT/JP2017/020503 WO2017217246A1 (en) 2016-06-17 2017-06-01 Polishing-type horizontal rice milling machine

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CN109328112A CN109328112A (en) 2019-02-12
CN109328112B true CN109328112B (en) 2021-02-12

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JP (1) JP6808991B2 (en)
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CN (1) CN109328112B (en)
TW (1) TWI717524B (en)
WO (1) WO2017217246A1 (en)

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JP2017221923A (en) 2017-12-21
KR20190018495A (en) 2019-02-22
WO2017217246A1 (en) 2017-12-21
TW201800151A (en) 2018-01-01
CN109328112A (en) 2019-02-12
JP6808991B2 (en) 2021-01-06
TWI717524B (en) 2021-02-01
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