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公开(公告)号：US20190084313A1
公开(公告)日：2019-03-21
申请号：US16191912
申请日：2018-11-15
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
摘要： A liquid discharging head includes: a nozzle plate having a plurality of nozzles from which liquid is discharged; a channel member including a plurality of individual liquid chambers that lead to the plurality of nozzles, respectively, and including a plurality of circulation channels that lead to the plurality of individual liquid chambers, respectively; and a common liquid chamber member for forming a common liquid chamber that supplies liquid to the plurality of individual liquid chambers and for forming a circulation common liquid chamber that leads to the plurality of circulation channels.
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公开(公告)号：US20180272730A1
公开(公告)日：2018-09-27
申请号：US15920612
申请日：2018-03-14
CPC分类号： B41J2/17563 , B41J2/14274 , B41J2/1433 , B41J2/175 , B41J2/18 , B41J2002/14403 , B41J2202/12 , B41J2202/20 , B41J2202/21
摘要： A liquid discharge head, includes a nozzle from which liquid is discharged, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber, the liquid flowing through the supply channel in a first direction, and a filter disposed upstream of the supply channel, the liquid filtering through the filter in a second direction. The first direction intersects the second direction, and the supply channel includes an inlet disposed at a position overlapping the filter in the second direction.
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公开(公告)号：US20170157924A1
公开(公告)日：2017-06-08
申请号：US15358486
申请日：2016-11-22
申请人： Yukio OTOME , Takahiro YOSHIDA , Takayuki NAKAI , Shiomi ANDOU , Kanshi ABE , Kenshiroh MUNETOMO , Toshimichi ODAKA
发明人： Yukio OTOME , Takahiro YOSHIDA , Takayuki NAKAI , Shiomi ANDOU , Kanshi ABE , Kenshiroh MUNETOMO , Toshimichi ODAKA
IPC分类号： B41J2/14
CPC分类号： B41J2/1433 , B41J2/14233 , B41J2/14274 , B41J2002/14306 , B41J2002/14419 , B41J2202/11
摘要： A liquid discharge head includes a channel plate. The channel plate includes a fluid restrictor, a channel, a first plate member, and a second plate member. The channel is disposed on at least one of an upstream side and a downstream side of the fluid restrictor in a direction of flow of liquid. The channel has a greater width than a width of the fluid restrictor in a direction perpendicular to the direction of flow of liquid in an in-plane direction. The first plate member has a through hole including at least one broad portion and a narrow portion. The narrow portion is the fluid restrictor. The second plate member includes at least one through hole constituting part of the channel with the broad portion. The through hole is disposed opposite an end of the narrow portion at which the narrow portion is connected to the broad portion.
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公开(公告)号：US20180194135A1
公开(公告)日：2018-07-12
申请号：US15844831
申请日：2017-12-18
申请人： Masami IWAMA , Yukio OTOME , Takahiro YOSHIDA , Takakazu KIHIRA , Takayuki NAKAI , Shiomi ANDOU , Isamu SUZUKI , Ryuji YOSHIDA , Kanshi ABE , Junichi IWATA , Katsuya ISHll , Toshimichi ODAKA
发明人： Masami IWAMA , Yukio OTOME , Takahiro YOSHIDA , Takakazu KIHIRA , Takayuki NAKAI , Shiomi ANDOU , Isamu SUZUKI , Ryuji YOSHIDA , Kanshi ABE , Junichi IWATA , Katsuya ISHll , Toshimichi ODAKA
CPC分类号： B41J2/14233 , B41J2/14274 , B41J2/1721 , B41J2/175 , B41J2/17503 , B41J2002/14258 , B41J2002/14403 , B41J2002/14467 , B41J2202/12
摘要： A liquid discharge head includes a plurality of nozzles from which liquid is discharged, a plurality of individual-liquid-chambers communicating with the plurality of nozzles, respectively, a plurality of individual-drainage-channels communicating with the plurality of individual-liquid-chambers, respectively, a drainage-side common-liquid-chamber communicating with each of the plurality of individual-drainage-channels, a filter having filter holes and disposed between the plurality of individual-drainage-channels and the drainage-side common-liquid-chamber, and an intermediate-drainage-channel disposed between the filter and the plurality of individual-drainage-channels. The intermediate-drainage-channel faces the filter and communicates with two or more of the plurality of individual-drainage-channels. A cross-sectional area of the intermediate-drainage-channel is greater than a cross-sectional area of each of the plurality of individual-drainage-channels communicating with the intermediate-drainage-channel in a direction perpendicular to a direction of liquid flow.
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公开(公告)号：US20200331262A1
公开(公告)日：2020-10-22
申请号：US16847827
申请日：2020-04-14
申请人： Shiomi ANDOU , Takahiro YOSHIDA , Takayuki NAKAI
发明人： Shiomi ANDOU , Takahiro YOSHIDA , Takayuki NAKAI
摘要： A liquid discharge head includes a plurality of nozzles to discharge liquid, a plurality of pressure chambers communicating with the nozzles, a plurality of individual flow paths communicating with the plurality of pressure chambers, and a common flow path communicating with the plurality of individual flow paths. Further, each individual flow path includes a first flow path portion and a second flow path portion each having a fluid resistance higher than a fluid resistance of a pressure chamber of the plurality of pressure chambers that communicates with the individual flow path, and a third flow path portion disposed between the first flow path portion and the second flow path portion, the third flow path portion having a fluid resistance lower than the fluid resistance of the first flow path portion and the third resistance of the second flow path portion.
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公开(公告)号：US20170120602A1
公开(公告)日：2017-05-04
申请号：US15333389
申请日：2016-10-25
申请人： Takayuki NAKAI , Takahiro YOSHIDA , Shiomi ANDOU , Toshimichi ODAKA , Kanshi ABE
发明人： Takayuki NAKAI , Takahiro YOSHIDA , Shiomi ANDOU , Toshimichi ODAKA , Kanshi ABE
IPC分类号： B41J2/175
CPC分类号： B41J2/175 , B41J2/14233 , B41J2202/12
摘要： A droplet discharge head includes a plurality of discharge orifices, a plurality of pressure generation chambers, a supply liquid chamber, a plurality of supply channels, a circulation liquid chamber, and a plurality of circulation channels. The discharge orifices discharge droplets. The pressure generation chambers are communicated with the discharge orifices, to apply pressure to liquid in the pressure generation chambers. The supply liquid chamber stores liquid to be supplied to the pressure generation chambers. The supply channels are communicated with the pressure generation chambers. The circulation liquid chamber receives liquid collected from the pressure generation chambers. The circulation channels communicate the pressure generation chambers with the circulation liquid chamber. Each of the circulation channels includes a small cross-section portion that has a smaller cross-sectional area in a width direction perpendicular to a longitudinal direction of each of the circulation channels than another portion in the longitudinal direction.
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公开(公告)号：US20180272740A1
公开(公告)日：2018-09-27
申请号：US15920945
申请日：2018-03-14
申请人： Yukio OTOME , Takahiro YOSHIDA , Takayuki NAKAI , Ryuji YOSHIDA , Junichi IWATA
发明人： Yukio OTOME , Takahiro YOSHIDA , Takayuki NAKAI , Ryuji YOSHIDA , Junichi IWATA
IPC分类号： B41J2/18
摘要： A liquid circulating apparatus includes a circulation route configured to circulate liquid through a liquid ejecting head, the circulation route including: a supply-side tank leading to a supply port of the liquid ejecting head; and a discharge-side tank leading to a discharge port of the liquid ejecting head, wherein the liquid is circulated by setting pressure in the supply-side tank higher than pressure in the discharge-side tank, and a sum of the pressure in the supply-side tank and the pressure in the discharge-side tank is set smaller when initial filling for filling the circulation route with the liquid is performed than when the liquid is circulated.
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公开(公告)号：US20170096015A1
公开(公告)日：2017-04-06
申请号：US15258394
申请日：2016-09-07
IPC分类号： B41J2/18
CPC分类号： B41J2/1707 , B41J2/14274 , B41J2/175 , B41J2/17509 , B41J2/18 , B41J2/185 , B41J2002/1856 , B41J2202/12
摘要： A liquid discharge head includes a nozzle, an individual liquid chamber, and a circulation channel. The nozzle discharges liquid. The individual liquid chamber is communicated with the nozzle. The circulation channel is communicated with the individual liquid chamber. A first direction in which liquid flows in the individual liquid chamber crosses a second direction in which liquid flows in the circulation channel. A liquid-inflow-side opening of the nozzle faces an area in which a flow of liquid changes from the first direction to the second direction.
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公开(公告)号：US20220126575A1
公开(公告)日：2022-04-28
申请号：US17509101
申请日：2021-10-25
申请人： Yukio OTOME , Takayuki NAKAI
发明人： Yukio OTOME , Takayuki NAKAI
摘要： A liquid discharge head includes a nozzle to discharge a liquid, a pressure generation chamber facing the nozzle, a common liquid chamber to supply the liquid to the pressure generation chamber, a fluid restrictor communicating with the pressure generation chamber, and a guide channel communicating with the fluid restrictor and the common liquid chamber. The guide channel includes a first adjacent portion communicating with the fluid restrictor. The pressure generation chamber has a first resonance period, and the guide channel has a second resonance period different from the first resonance period.
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公开(公告)号：US20210107281A1
公开(公告)日：2021-04-15
申请号：US17060254
申请日：2020-10-01
申请人： Takayuki NAKAI , Shiomi ANDOH
发明人： Takayuki NAKAI , Shiomi ANDOH
IPC分类号： B41J2/14
摘要： A liquid discharge head includes a nozzle plate, a channel plate, a common channel substrate, and a wall member. The nozzle plate includes a plurality of nozzles configured to discharge liquid. The channel plate includes a plurality of pressure chambers communicated with the nozzles, respectively. The common channel substrate includes a common channel communicated with the pressure chambers. The wall member includes a deformable region in a part of a wall surface of the common channel. The channel plate and the common channel substrate are disposed with the wall member interposed between the channel plate and the common channel substrate. The channel plate includes an air chamber facing the deformable region. The channel plate includes a bridge portion partially dividing the air chamber in a nozzle arrangement direction in which the nozzles are arranged. The bridge portion is not in contact with the wall member and the nozzle plate.
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