Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
  • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J201/00—Adhesives based on unspecified macromolecular compounds
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J7/00—Adhesives in the form of films or foils
  • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition

Definitions

• This disclosure relates to a method for applying a film adhesive and an apparatus for applying a film adhesive.
• the sealing structure described in JP 2021-89881 A has a plate-shaped conductor, a through hole through which the conductor is inserted, a recess that spreads from the through hole in a direction perpendicular to the axial direction of the through hole and surrounds the through hole, and a hole portion that extends in a first direction perpendicular to the axial direction of the through hole and communicates the through hole and the recess with an external space, and is equipped with a holding member that holds the conductor inserted into the through hole, and a sealing member that has a first seal portion that seals between the recess and the conductor, and a second seal portion that closes the hole portion.
• one component when joining dissimilar components, one component may be joined to the other component while a film adhesive is attached to the other component.
• the worker When attaching the film adhesive to one component, the worker simply wraps the film adhesive around the component. This can result in air bubbles getting in between the film adhesive and the component when the film adhesive is attached to the component.
• the objective of this disclosure is to prevent air bubbles from being trapped between the film adhesive and the component when the film adhesive is attached to the component.
• the method for applying a film adhesive according to the first aspect of the present disclosure includes the steps of wrapping one film adhesive around one end face and both plate surfaces of a heated plate member extending in one direction, pressing the one film adhesive against both plate surfaces, pressing the one film adhesive against the one end face, wrapping another film adhesive around the other end face and both plate surfaces of the heated plate member and overlapping the other film adhesive and the one film adhesive against both plate surfaces, pressing the other film adhesive against both plate surfaces, and pressing the other film adhesive against the other end face.
• the film adhesive application method according to the second aspect of the present disclosure is the film adhesive application method described in the first aspect, in which in the step of pressing the one film adhesive against both plate surfaces and the step of pressing the other film adhesive against both plate surfaces, the one film adhesive and the other film adhesive are pressed against both plate surfaces by passing the plate member through the clamping portion of a pair of rollers.
• the method for applying a film adhesive according to the third aspect of the present disclosure is the method for applying a film adhesive described in the second aspect, in which the pair of rollers are each biased toward the plate member, thereby pressing the one film adhesive and the other film adhesive against both plate surfaces.
• the film adhesive application device includes a gripping section that grips a base end portion of a heated plate member that extends in one direction, a pair of support members across which a film adhesive is stretched and that support the film adhesive, a moving section that moves the gripping section and folds the film adhesive stretched across the pair of support members at the end faces of the plate member gripped by the gripping section to wrap the film adhesive around the end faces and both plate faces of the plate member, one pressing section that presses the film adhesive against both plate faces of the plate member that moves together with the gripping section by the moving section, and another pressing section that presses the film adhesive against the end faces of the plate member whose movement has stopped.
• the film adhesive application device is the film adhesive application device described in the fourth aspect, in which the one pressing portion includes the pair of rollers that clamp the moving plate member with the clamping portion.
• the film adhesive application device is the film adhesive application device described in the fifth aspect, in which the one pressing portion includes a biasing member that biases each of the pair of rollers toward the plate member.
• 1 is a three-phase terminal block having terminals to which a film adhesive is attached using a film adhesive attachment method according to a first embodiment of the present disclosure.
• 1A and 1B are perspective views showing a film adhesive application device used in a film adhesive application method according to a first embodiment of the present disclosure, illustrating a state in which a terminal is held by a holding portion and a state in which a film adhesive is wrapped around the terminal.
• 1A and 1B are perspective views showing a film adhesive application device used in a film adhesive application method according to a first embodiment of the present disclosure, illustrating a state in which the film adhesive is pressed against a plate surface of a terminal, and a state in which the film adhesive is pressed against an end surface of a terminal.
• FIGS. 1A and 1B are perspective views showing a film adhesive application device used in a film adhesive application method according to a first embodiment of the present disclosure, illustrating a state in which the terminal has been returned to its initial position and a state in which the terminal has been turned upside down and held by a gripping portion.
• 1 is a perspective view showing a terminal to which a film adhesive is attached using a film adhesive attachment method according to a first embodiment of the present disclosure.
• 13A and 13B are front views showing a film adhesive application device used in a film adhesive application method according to a second embodiment of the present disclosure, illustrating a state in which a terminal is held in a gripping portion and a film adhesive is pressed against both plate surfaces and one end surface of the terminal.
• 13A and 13B are front views showing a film adhesive application device used in a film adhesive application method according to a second embodiment of the present disclosure, illustrating a state in which a new mechanism is provided and a state in which another film adhesive is pressed against both plate surfaces and the other end surface of the terminal.
• 13A and 13B are front views showing a film adhesive application device used in a film adhesive application method according to a third embodiment of the present disclosure, illustrating a state in which a terminal is held in a gripping portion and a film adhesive is pressed against both plate surfaces and one end surface of the terminal.
• FIGS. 13A and 13B are front views showing a film adhesive application device used in a film adhesive application method according to a third embodiment of the present disclosure, illustrating a state in which a terminal has been returned to its initial position, a state in which the terminal has been turned upside down and held by a gripping portion, and a state in which another film adhesive is pressed against both plate surfaces and the other end surface of the terminal.
• arrow H indicates the up-down direction (vertical direction) of the apparatus
• arrow W indicates the width direction (horizontal direction) of the apparatus
• arrow D indicates the depth direction (horizontal direction) of the apparatus.
• the terminal 10 to which the film adhesive 18 is attached using the method for attaching a film adhesive according to the first embodiment of the present disclosure is used, for example, in a three-phase terminal block 90 shown in FIG.
• the film adhesive 18 is a thin synthetic resin film formed using a thermoplastic resin, and is used to bond different materials.
• WelQuick registered trademark manufactured by Resonac Co., Ltd.
• the thickness of the film adhesive 18 is, for example, 0.05 mm.
• the terminal 10 is made of a conductive material and, as shown in FIG. 1, is plate-shaped and extends in one direction.
• the terminal 10 is formed with a pair of plate surfaces 12 and a pair of end surfaces 14 that sandwich the pair of plate surfaces 12 from the short side direction of the terminal 10.
• the terminal 10 is an example of a plate member.
• the film adhesive 18 is rectangular and wrapped around the center of the terminal 10 in the longitudinal direction (one direction).
• the film adhesive 18 wrapped around the terminal 10 is embedded inside the resin housing of the three-phase terminal block 90, and the resin housing and the terminal 10 are joined together.
• the thickness of the film adhesive 18 shown in each figure has been exaggerated to make it easier to understand the state of the film adhesive 18.
• the film adhesive application device 20 (hereinafter referred to as "application device 20") includes a gripping section 30 that grips the plate-shaped terminal 10, a support section 40 that supports the film adhesive 18, and a moving section 50 that moves the gripping section 30 in the vertical direction of the device. Furthermore, the application device 20 includes a pressing section 60 that presses the film adhesive 18 against the plate surface 12 of the terminal 10, and a pressing section 70 that presses the film adhesive 18 against the end surface 14 of the terminal 10.
• the gripping unit 30 is disposed above the joining device 20 when the joining device 20 is in an initial position before the operation of the joining device 20.
• the gripping unit 30 includes a pair of gripping blocks 32 spaced apart in the device width direction, a proximity/separation mechanism (not shown), and a heater (not shown).
• the pair of gripping blocks 32 are formed in a rectangular parallelepiped shape using a metal material, and are aligned in the width direction of the device. Furthermore, the pair of gripping blocks 32 are arranged to approach and separate in the width direction of the device by an approaching and separating mechanism, and are heated by a heater. In this embodiment, the pair of gripping blocks 32 are heated by the heater to, for example, 160°C.
• the pair of gripping blocks 32 sandwich the base end portion of the terminal 10 and grip the terminal 10 so that the terminal 10 protrudes toward the front in the device depth direction.
• the pair of gripping blocks 32 sandwich the base end portion of the terminal 10 with the longitudinal direction (one direction) being the device depth direction and the plate thickness direction being the device width direction.
• the pair of gripping blocks 32 then grip the terminal 10 so that the terminal 10 protrudes toward the front in the device depth direction.
• the heated gripping blocks 32 heat the terminal 10.
• the support portion 40 is disposed below the terminal 10 protruding from the pair of gripping blocks 32.
• the support portion 40 includes a pair of support blocks 42 spaced apart in the device width direction.
• the support blocks 42 are an example of a support member.
• the pair of support blocks 42 are formed in a rectangular parallelepiped shape using a metal material, and are arranged with a gap between them in the width direction of the device. Furthermore, the upper surfaces 42a of the pair of support blocks 42 each have a regulating recess 44 formed therein for regulating the support position of the film adhesive 18.
• the gap between the pair of support blocks 42 is set to 1.5 times the plate thickness of the terminal 10. In other words, if the thickness of the terminal 10 is 2 mm, the gap between the pair of support blocks 42 is set to 3 mm.
• the film adhesive 18 is placed on the restricting recesses 44 formed on the upper surfaces 42a of the pair of support blocks 42. As a result, the film adhesive 18, which is positioned by the restricting recesses 44, is supported across the pair of support blocks 42.
• the moving unit 50 has known mechanical components, is disposed on the rear side of the gripping unit 30 in the device depth direction, and extends in the device up-down direction. The rear part of the gripping unit 30 in the device depth direction is attached to the moving unit 50, and the moving unit 50 moves the gripping unit 30 in the device up-down direction.
• the moving unit 50 moves the gripping unit 30 from the initial position downward, thereby folding the film adhesive 18 that is stretched across a pair of support blocks 42 at one end surface 14 of the terminal 10 gripped by the gripping unit 30, as shown in Figures 2(A) and 2(B). This causes the film adhesive 18 to be wrapped around one end surface 14 and both plate surfaces 12.
• the pressing portion 60 is disposed below the support portion 40, and includes a pair of rollers 62 and a pair of support members 64 that rotatably support the pair of rollers 62.
• the pressing portion 60 further includes a biasing member 66 that biases the rollers 62 via the support members 64.
• biasing refers to applying a force in one direction.
• the pressing portion 60 is an example of one pressing portion.
• a pair of rollers 62 are provided, with the axial direction being the device depth direction, and are arranged with a gap in the device width direction.
• the gap between the pair of rollers 62 is set to 0.5 times the plate thickness of the terminal 10. In other words, when the thickness of the terminal is 2 mm, the gap between the pair of rollers 62 is set to 1 mm. In this way, by providing a gap between the pair of rollers 62, damage to the film adhesive 18 is suppressed.
• the outer periphery of the roller 62 is formed using silicone resin, and the hardness of this part is Shore A hardness 50. In this way, the outer periphery of the roller 62 is formed using silicone resin, which prevents the film adhesive 18 from sticking to the roller 62. Note that forming the outer periphery of the roller 62 using silicone resin is just one example, and other materials may be used for the outer periphery of the roller 62 as long as they can prevent the film adhesive 18 from sticking to the outer periphery of the roller 62.
• a pair of support members 64 are provided, and one support member 64 is U-shaped with an open end toward the other support member 64.
• the rollers 62 are rotatably supported at both ends of the support member 64.
• Urging member 66 -- 2A a pair of urging members 66 are provided and are disposed on the outer side in the device width direction relative to the rollers 62.
• the urging members 66 are compression coil springs and are disposed so as to extend in the device width direction, with one end of the urging members 66 attached to the support member 64 and the other end of the urging members 66 attached to a frame member (not shown).
• the film adhesive 18 is pressed against the plate surface 12 of the terminal 10 by the biasing force of the biasing member 66, as shown in FIG. 3(A).
• the pressing force with which the biasing member 66 presses the film adhesive 18 against the plate surface 12 of the terminal 10 is, as an example, 5 [N].
• the clamping portion is the portion where the pair of rollers 62 face each other.
• the relative positions of the rollers 62 and the support block 42 in the vertical direction of the device are determined so that the film adhesive 18 separates from the support block 42 after the terminal 10 is clamped between the pair of rollers 62.
• the pressing portion 70 is disposed below the pressing portion 60, and includes a pressing base 72 and a biasing member 74 that biases the pressing base 72 toward the terminal 10.
• the pressing portion 70 is an example of another pressing portion.
• the pressing table 72 is in the shape of a rectangular parallelepiped extending in the device depth direction.
• the upper surface portion of the pressing table 72 is formed using silicone resin, and the hardness of this portion is Shore A hardness 50. In this way, the upper surface portion of the pressing table 72 is formed using silicone resin, which prevents the film adhesive 18 from sticking to the pressing table 72.
• forming the upper surface portion of the pressing table 72 using silicone resin is just one example, and other materials may be used as long as they can prevent the film adhesive 18 from sticking to the upper surface portion of the pressing table 72.
• the urging member 74 is disposed below the pressing table 72.
• the urging member 74 is a compression coil spring that is disposed so as to extend in the vertical direction of the device, with one end of the urging member 74 attached to the pressing table 72 and the other end of the urging member 74 attached to a frame member (not shown).
• the moving part 50 stops the moving gripping part 30 when it presses the moving terminal 10 against the pressing stand 72.
• the film adhesive 18 is pressed against the end face 14 of the terminal 10 by the biasing force of the biasing member 74.
• the pressing force with which the biasing member 74 presses the film adhesive 18 against the end face 14 of the terminal 10 is, as an example, 5 [N].
• Attaching method for attaching one film adhesive 18 and another film adhesive 18 to the terminal 10 using an attachment device 20.
• the first film adhesive 18 will be referred to as film adhesive 18a
• the other film adhesive 18 will be referred to as film adhesive 18b.
• the gripping unit 30 is disposed in the upper portion of the attachment device 20.
• the pair of gripping blocks 32 are moved toward and away from each other using a moving-away mechanism, whereby the pair of gripping blocks 32 grip the terminals 10 by sandwiching the base end portions of the terminals 10.
• the terminals 10 extend in the device depth direction, and are disposed so that the plate thickness direction of the terminals 10 is the device width direction.
• the heaters provided on the pair of gripping blocks 32 are operated, whereby the terminals 10 are heated.
• the film adhesive 18a is placed on the restricting recesses 44 formed on the upper surfaces 42a of the pair of support blocks 42, and the pair of support blocks 42 support the film adhesive 18a in a positioned state. In this way, the film adhesive 18a is stretched across the pair of support blocks 42.
• the moving unit 50 moves the gripping unit 30 gripping the terminal 10 downward.
• the film adhesive 18a stretched across the pair of support blocks 42 is folded at one end surface 14 of the terminal 10 that moves together with the gripping unit 30.
• the film adhesive 18a is then wrapped around one end surface 14 and both plate surfaces 12 (wrapping process).
• the moving part 50 moves the gripping part 30 gripping the terminal 10 downward.
• the moving terminal 10 passes through the gripping part of the pair of rollers 62, and the film adhesive 18a is pressed against the plate surface 12 of the terminal 10 by the biasing force of the biasing member 66 (pressing process against the plate surface).
• the moving part 50 moves the gripping part 30 gripping the terminal 10 downward, and stops the moving gripping part 30 when it presses the terminal 10 against the pressing stand 72.
• the film adhesive 18a is pressed against the end surface 14 of the terminal 10 by the biasing force of the biasing member 74 (pressing process against the end surface).
• the moving part 50 moves the gripping part 30 gripping the terminal 10 upward to return it to its initial position.
• the film adhesive 18a is attached to one end surface 14 and both plate surfaces 12 of the terminal 10.
• a pair of gripping blocks 32 clamps and grips the base end portion of the terminal 10.
• the film adhesive 18b is supported in a state where it is positioned on the pair of support blocks 42. In this way, the film adhesive 18b is stretched across the pair of support blocks 42.
• the film adhesive 18 is wrapped around the terminal 10 as shown in Figure 5. Specifically, the film adhesive 18 is wrapped around the terminal 10 in a state where both end portions of the film adhesive 18a and both end portions of the film adhesive 18b overlap on both plate surfaces 12 of the terminal 10.
• the film adhesive 18 is pressed against the plate surface 12 and the end surface 14 of the terminal 10.
• the attachment method and attachment device 20 it is possible to prevent air bubbles from getting between the terminal 10 and the film adhesive 18 when attaching the film adhesive 18 to the terminal.
• the moving terminal 10 in the pressing process against the plate surface, the moving terminal 10 is sandwiched between the clamping portions of a pair of rollers 62, so that the film adhesive 18 is pressed against both plate surfaces 12 of the terminal 10.
• the attachment method and attachment device 20 compared to a case in which the film adhesive 18 is pressed against the plate surface 12 of the terminal 10 using a non-rotatable pressing member, it is possible to effectively prevent air bubbles from entering between the terminal 10 and the film adhesive 18 when attaching the film adhesive 18 to the terminal 10.
• the film adhesive 18 is pressed against the plate surface 12 of the terminal 10 by the biasing force of the biasing member 66.
• the film adhesive 18 can be pressed against both plate surfaces 12 of the terminal 10 with the same force across the entire plate surface 12.
• Second Embodiment An example of a film adhesive application method and a film adhesive application device according to a second embodiment of the present disclosure will be described with reference to Fig. 6 and Fig. 7. Note that, regarding the second embodiment, differences from the first embodiment will be mainly described.
• a film adhesive application device 120 (hereinafter referred to as "application device 120") according to the second embodiment is provided with a moving unit 130 that moves to and is positioned above the support part 40 while a pressing stand 72 is pressing a film adhesive 18a against an end face 14 of a terminal 10. Note that in Figures 6 and 7, the moving part 50 (see Figure 2) is omitted.
• the moving unit 130 is configured to move by a moving member (not shown), and as shown in FIG. 7(A), includes a pair of limiting blocks 142, a pressing portion 160, and a pressing portion 170.
• a pair of limiting blocks 142 are provided.
• the pair of limiting blocks 142 are provided above the pair of support blocks 42, respectively, and are disposed with a gap between them. In this way, the limiting blocks 142 restrict the portions of the film adhesive 18 that are in contact with the support blocks 42 from floating upward.
• the pressing portion 160 is disposed above the limiting block 142.
• the pressing portion 160 has a configuration similar to that of the pressing portion 60, and includes a pair of rollers 162, a pair of support members 164 that rotatably support the pair of rollers 162, and a biasing member 166 that biases the rollers 162 toward the terminal 10 via the support members 164.
• the pressing portion 160 is an example of one pressing portion.
• the pressing portion 170 is disposed above the pressing portion 160.
• the pressing portion 170 is configured upside down with respect to the pressing portion 70, and includes a pressing base 172 and a biasing member 174 that biases the pressing base 172 toward the terminal 10.
• the pressing portion 170 is an example of another pressing portion.
• the terminal 10 is moved downward so that the film adhesive 18a is attached to one end surface 14 and both plate surfaces 12 of the terminal 10.
• the film adhesive 18b is supported by a pair of support blocks 42 as shown in Fig. 6(B) and Fig. 7(A). Also, the moving unit 130 is moved and positioned above the support part 40 by a moving member (not shown).
• the terminal 10 is, for example, a bus bar, and has a rectangular, e.g., approximately square, cross section in the short direction.
• the plate member includes not only flat members such as the terminal 10 of the first and second embodiments, but also rod-shaped members.
• the gripping block 32 in the gripping portion 30 has a recess 32A into which the terminal 10 fits.
• the gap between the pair of support blocks 42 in the support portion 40 is set to be, for example, 1 to 2 mm larger than the thickness of the terminal 10.
• the pressing table 72 is positioned in the vertical direction from between the pair of support blocks 42 to between the pair of rollers 62.
• the height of the top surface of the pressing table 72 is, for example, the same height as the bottom surface of the film adhesive 18a.
• the width of the pressing table 72 is, for example, the same as the width of the terminal 10.
• the terminal 10 held in the recesses 32A of the pair of gripping blocks 32 is moved downward, so that the film adhesive 18a is attached to one end face 14 and both plate surfaces 12 of the terminal 10.
• the film adhesive 18 is pressed against one end face 14 of the terminal 10 by the pressing table 72 receiving the biasing force of the biasing member 74, and is pressed against the plate surface 12 of the terminal 10 by the roller 62 receiving the biasing force of the biasing member 66.
• the terminal 10 is removed from the gripping portion 30, and one end face 14 of the terminal 10 facing downward is turned upward, and the other end face 14 facing upward is turned downward.
• the base end portion of the terminal 10 is sandwiched and gripped by the recesses 32A of the pair of gripping blocks 32.
• the film adhesive 18b is supported in a state where it is positioned on the pair of support blocks 42. In this way, the film adhesive 18b is stretched across the pair of support blocks 42.
• the film adhesive 18 is wrapped around the terminal 10. Specifically, the film adhesive 18 is wrapped around the terminal 10 in a state where both end portions of the film adhesive 18a and both end portions of the film adhesive 18b overlap on both plate surfaces 12 of the terminal 10.
• the film 18a is pressed against both plate surfaces 12 of the terminal 10 and then pressed against the end surface 14 from the beginning of attachment. Therefore, even if the end surface 14 has a relatively large width, it is possible to prevent air bubbles from entering between the terminal 10 and the film adhesive 18.
• the terminal 10 is heated by the gripping portion 30, but a pre-heated terminal 10 may be gripped by the gripping portion.
• the film adhesive 18 is wrapped around the terminal 10 formed using a metal material, but the film adhesive 18 may also be wrapped around a member formed using another material.
• the terminal 10 extends in the device depth direction (one direction), but it is sufficient if the terminal in the portion where the film adhesive 18 is wrapped extends in one direction.
• the film adhesive 18 is wrapped around the terminal 10 by moving the gripping portion 30, but the film adhesive 18 may be wrapped around the terminal 10 by moving the support portion 40, the pressing portion 60, and the pressing portion 70 without moving the gripping portion 30. In other words, the film adhesive 18 may be wrapped around the terminal 10 by moving the gripping portion 30 and the pressing portion 60 and the pressing portion 70 relative to each other.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

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  • 2024-03-22 WO PCT/JP2024/011412 patent/WO2025017966A1/ja active Pending

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