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公开(公告)号：US20210300822A1
公开(公告)日：2021-09-30
申请号：US17260508
申请日：2019-06-19
Inventor： Eiichi URIU , Hiroyuki ABE , Tasuku ISHIBASHI , Kazuya HASEGAWA , Masataka NONAKA , Takeshi SHIMIZU , Haruhiko ISHIKAWA
Abstract: A glass panel unit includes a first glass pane, a second glass pane, a frame member, a vacuum space, and a gas adsorbing layer. The gas adsorbing layer is formed to cover at least one of the first glass pane or the second glass pane. The gas adsorbing layer contains a getter material.
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公开(公告)号：US20210262280A1
公开(公告)日：2021-08-26
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
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：US20210131168A1
公开(公告)日：2021-05-06
申请号：US17043018
申请日：2019-03-13
Inventor： Masataka NONAKA , Eiichi URIU , Kazuya HASEGAWA , Tasuku ISHIBASHI , Hiroyuki ABE , Takeshi SHIMIZU , Haruhiko ISHIKAWA
Abstract: A glass panel unit includes: a first glass pane; a second glass pane disposed to face the first glass pane; a frame disposed between the first glass pane and the second glass pane and hermetically bonding a first peripheral portion of the first glass pane and a second peripheral portion of the second glass pane together, the first peripheral portion extending along an outer periphery of the first glass pane, the second peripheral portion extending along an outer periphery of the second glass pane; a vacuum space surrounded by the first glass pane, the second glass pane, and the frame; a gas adsorbent disposed in the vacuum space; and a thermal insulation layer disposed between the gas adsorbent and the second glass pane.
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公开(公告)号：US20210131167A1
公开(公告)日：2021-05-06
申请号：US17044827
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 pair of glass substrates; a peripheral wall disposed between the glass substrates; partitions; an evacuation port; and air passages. The partitions are provided to partition an internal space, surrounded with the glass substrates and the peripheral wall, into an evacuation space and a ventilation space. The evacuation port connects the ventilation space to an external environment. The air passages are used to evacuate the evacuation space through the evacuation port. The air passages include particular air passages arranged in a second direction perpendicular to a first direction, in which the glass substrates face each other, to constitute a ventilation path running through the internal space in the second direction.
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公开(公告)号：US20210123297A1
公开(公告)日：2021-04-29
申请号：US17254624
申请日：2019-05-23
Inventor： Takeshi SHIMIZU , Masataka NONAKA , Haruhiko ISHIKAWA , Eiichi URIU , Kazuya HASEGAWA , Tasuku ISHIBASHI , Hiroyuki ABE
Abstract: A method for manufacturing a glass panel unit includes a glue arrangement step, a pillar placement step, an assembly forming step, a bonding step, an evacuation step, and a sealing step. The evacuation step reduces pressure in an internal space by exhausting, with predetermined suction power, a gas from the internal space via a valve and an exhaust port. The valve includes a first valve allowing the gas to flow through a first channel area and a second valve allowing the gas to flow through a second channel area larger than the first channel area. The evacuation step includes a first evacuation step to be performed first and a second evacuation step to be performed next. In the first evacuation step, the first valve is opened and the second valve is closed. In the second evacuation step, the first valve is closed and the second valve is opened.
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Patent Agency Ranking
公开(公告)号：US20210123295A1
公开(公告)日：2021-04-29
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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公开(公告)号：US20210108458A1
公开(公告)日：2021-04-15
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：US20210002949A1
公开(公告)日：2021-01-07
申请号：US17040745
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: glass substrates; a peripheral wall having a frame shape and disposed between the glass substrates; a partition; an evacuation port; and a plurality of air passages. The partition partitions an internal space into an evacuation space, a ventilation space, and a coupling space. The evacuation port connects the ventilation space to an external environment. The plurality of air passages includes: a first air passage connecting the evacuation space to the coupling space; and a second air passage connecting the coupling space to the ventilation space. The second air passage includes a particular air passage having a larger dimension than any of the first air passage.
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公开(公告)号：US20200300030A1
公开(公告)日：2020-09-24
申请号：US16089565
申请日：2017-03-27
Inventor： Masataka NONAKA , Eiichi URIU , Takeshi SHIMIZU , Haruhiko ISHIKAWA , Kazuya HASEGAWA , Tasuku ISHIBASHI , Hiroyuki ABE
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 irradiating a second sealant, inserted into the exhaust port, with an infrared ray through a region, where a low emissivity film is nonexistent, of the second substrate.
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公开(公告)号：US20200157876A1
公开(公告)日：2020-05-21
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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