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公开(公告)号：US12187643B2
公开(公告)日：2025-01-07
申请号：US17041873
申请日：2019-03-15
Inventor： Hiroyuki Abe , Eiichi Uriu , Kazuya Hasegawa , Tasuku Ishibashi , Masataka Nonaka , Takeshi Shimizu , Haruhiko Ishikawa
Abstract: A method for manufacturing a glass panel unit, which reduces the amount of a getter material to enable a gettering ability to be realized at a relatively low temperature less likely to cause damage. The method includes a step of producing a getter material by heating an unprocessed getter material at a temperature higher than a prescribed temperature Te; a step of producing a preassembled component including a first and second glass pane, a heat-fusible sealing material, an internal space, and a gas adsorbent containing the getter material, and an evacuation port; a step of forming a frame body hermetically bonding the first glass pane and the second glass pane together by melting the heat-fusible sealing material with heat; and a step of heating the gas adsorbent at the prescribed temperature Te while the internal space is evacuated by exhausting air in the internal space through the evacuation port.
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公开(公告)号：US12098587B2
公开(公告)日：2024-09-24
申请号：US17283858
申请日：2019-08-27
Inventor： Kenji Hasegawa , Eiichi Uriu , Kazuya Hasegawa , Tasuku Ishibashi , Hiroyuki Abe , Masataka Nonaka , Takeshi Shimizu , Haruhiko Ishikawa
CPC classification number: E06B3/6612 , E06B3/6621 , E06B3/6733
Abstract: A glass panel unit includes: a first panel including a glass pane; a second panel including another glass pane; a sealing portion; an exhaust port; and a printed portion. The second panel is arranged to face the first panel. The sealing portion is formed in a frame shape and hermetically bonds respective peripheral edge portions of the first and second panels to create an evacuated, hermetically sealed space between the first panel and the second panel. The exhaust port is provided for one panel selected from the first and second panels. A port sealing member hermetically seals the exhaust port. The printed portion is provided for the other panel selected from the first and second panels. The printed portion is located in an area, facing the exhaust port, of one surface of the other panel. The one surface either faces toward, or faces away from, the hermetically sealed space.
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公开(公告)号：US11905755B2
公开(公告)日：2024-02-20
申请号：US17256639
申请日：2019-05-23
Inventor： Kazuya Hasegawa , Hiroyuki Abe , Haruhiko Ishikawa , Tasuku Ishibashi , Eiichi Uriu , Takeshi Shimizu , Masataka Nonaka
CPC classification number: E06B3/6736 , B32B17/10 , C03C27/06 , E06B3/6612 , E06B3/66342 , E06B3/6775 , E06B3/66333 , E06B2003/66338
Abstract: A method for manufacturing a glass panel unit includes a glue arrangement step, an assembly forming step, a first melting step, an evacuation step, and a second melting step. The first melting step includes melting a hot glue, bonding a first and second panel with the glue, and forming an internal space. The first melting step includes a first temperature raising step, a first temperature maintaining step including maintaining the temperature of the assembly at a temperature equal to or higher than a softening point of the hot glue, and a first temperature lowering step, which are performed in this order. The first temperature lowering step includes: an anterior temperature lowering step including lowering the temperature of the assembly; a middle temperature maintaining step including maintaining the temperature of the assembly; and a posterior temperature lowering step including lowering the temperature of the assembly, which are performed in this order.
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公开(公告)号：US11230878B2
公开(公告)日：2022-01-25
申请号：US17044642
申请日：2019-03-08
Inventor： Tasuku Ishibashi , Eiichi Uriu , Kazuya Hasegawa , Hiroyuki Abe , Masataka Nonaka , Takeshi Shimizu , Haruhiko Ishikawa
Abstract: A glass panel unit assembly includes: a pair of glass substrates arranged to face each other; a peripheral wall; a partition; an air passage; and an evacuation port. The peripheral wall has a frame shape and is disposed between the pair of glass substrates. The partition partitions an internal space, surrounded with the pair of glass substrates and the peripheral wall, into a first space and a second space. The air passage connects the first space and the second space together. The evacuation port connects the second space to an external environment. The partition is lower in height than the peripheral wall.
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公开(公告)号：US11549305B2
公开(公告)日：2023-01-10
申请号：US17044131
申请日：2019-04-19
Inventor： Tasuku Ishibashi , Eiichi Uriu , Kazuya Hasegawa , Hiroyuki Abe , Masataka Nonaka , Takeshi Shimizu , Haruhiko Ishikawa
Abstract: An assembly includes a plurality of partitions to partition an internal space, surrounded with a pair of glass substrates arranged to face each other and a the peripheral wall having a frame shape and provided between the pair of glass substrates, into an evacuation space and a ventilation space. The plurality of partitions includes a first partition and a second partition, of which lengths are defined in two different directions. An end of the second partition faces a side portion of the first partition with a predetermined gap left between them. A space between the end of the second partition and the side portion of the first partition constitutes an air passage to evacuate the evacuation space through an evacuation port. The second partition includes, at the end thereof, a swollen portion protruding toward the evacuation space at least along the width of the second partition.
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Patent Agency Ranking
公开(公告)号：US11428041B2
公开(公告)日：2022-08-30
申请号：US17041850
申请日：2019-03-07
Inventor： Tasuku Ishibashi , Eiichi Uriu , Kazuya Hasegawa , Hiroyuki Abe , Masataka Nonaka , Takeshi Shimizu , Haruhiko Ishikawa
Abstract: A glass panel unit assembly includes a pair of glass substrates arranged to face each other, a peripheral wall, a partition, an air passage, and an evacuation port. The peripheral wall has a frame shape and is provided between the pair of glass substrates. The partition partitions an internal space, surrounded with the pair of glass substrates and the peripheral wall, into a first space and a second space. The air passage connects the first space and the second space together. The evacuation port connects the second space to an external environment. The partition has a broader width than the peripheral wall.
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公开(公告)号：US11268317B2
公开(公告)日：2022-03-08
申请号：US16617496
申请日：2018-05-25
Inventor： Takeshi Shimizu , Kazuya Hasegawa , Masataka Nonaka , Hiroyuki Abe , Eiichi Uriu , Haruhiko Ishikawa , Tasuku Ishibashi
Abstract: A first substrate, having an evacuation port, and a second substrate are bonded together with a first sealing material in a frame shape interposed between them to create an internal space. The internal space is evacuated through the evacuation port, and the evacuation port is sealed up with the internal space kept evacuated. At this time, a second sealing material inserted into the evacuation port is heated and melted while being pressed toward the second substrate such that the evacuation port is sealed up with the second sealing material melted. The evacuation port and the second sealing material have dissimilar shapes when viewed along the center axis of the evacuation port in a state where the second sealing material has been inserted into the evacuation port but has not melted yet.
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公开(公告)号：US10974985B2
公开(公告)日：2021-04-13
申请号：US16084782
申请日：2017-03-27
Inventor： Takeshi Shimizu , Tasuku Ishibashi , Eiichi Uriu , Kazuya Hasegawa , Masataka Nonaka , Hiroyuki Abe , Haruhiko Ishikawa
Abstract: A glass panel unit manufacturing method includes a bonding step, a pressure reducing step, and a sealing step. The bonding step includes bonding together a first substrate and a second substrate with a first sealant to create an inner space. The pressure reducing step includes producing a reduced pressure in the inner space through an exhaust port that the first substrate has. The sealing step includes melting and expanding a second sealant, inserted into the exhaust port, by heating the second sealant and thereby sealing the exhaust port up with the second sealant expanded to the point of coming into contact with a dam arranged in the inner space.
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公开(公告)号：US10858279B2
公开(公告)日：2020-12-08
申请号：US16089853
申请日：2017-03-23
Inventor： Takeshi Shimizu , Tasuku Ishibashi , Eiichi Uriu , Kazuya Hasegawa , Masataka Nonaka , Hiroyuki Abe , Haruhiko Ishikawa
Abstract: A glass panel unit manufacturing method includes a bonding step, a pressure reducing step, and a sealing step. The bonding step includes bonding together a first substrate and a second substrate with a first sealant to create an inner space. The pressure reducing step includes producing a reduced pressure in the inner space through an exhaust port that the first substrate has. The sealing step includes melting a second sealant inserted into the exhaust port by locally heating the second sealant, and deforming the second sealant by pressing the second sealant toward the second substrate, to seal the exhaust port up with the second sealant melted and deformed.
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10.发明授权公开(公告)号：US12091359B2
公开(公告)日：2024-09-17
申请号：US17044233
申请日：2019-02-28
Inventor： Haruhiko Ishikawa , Takeshi Shimizu , Masataka Nonaka , Eiichi Uriu , Kazuya Hasegawa , Tasuku Ishibashi , Hiroyuki Abe
CPC classification number: C03C27/06 , E06B3/6612 , E06B3/6775
Abstract: A sealing head includes a frame, an intake unit, a pressing pin, and a non-contact heater. The frame is configured to be detachably attached to a work in progress of a glass panel unit. The intake unit, the pressing pin, and the non-contact heater are supported by the frame. The work in progress includes a first substrate, a second substrate, a bonding part, and an internal space. The first substrate has an evacuation port. The bonding part bonds the first substrate and the second substrate together. The internal space is formed by being surrounded by the first substrate, the second substrate, and the bonding part. The internal space is communicated with the evacuation port. The pressing pin is configured to press, toward the second substrate, a sealing material which is heat fusible and which is inserted into the evacuation port. The non-contact heater is configured to locally heat the sealing material in a non-contact manner via the second substrate.
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