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公开(公告)号：US09815285B2
公开(公告)日：2017-11-14
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
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：US10179452B2
公开(公告)日：2019-01-15
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 Ishii , 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 Ishii , Toshimichi Odaka
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：US10160216B2
公开(公告)日：2018-12-25
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
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：US10399355B2
公开(公告)日：2019-09-03
申请号：US15879906
申请日：2018-01-25
申请人： Takayuki Nakai , Toshimichi Odaka , Takakazu Kihira , Takahiro Yoshida , Shiomi Andou , Yukio Otome , Katsuya Ishii
发明人： Takayuki Nakai , Toshimichi Odaka , Takakazu Kihira , Takahiro Yoshida , Shiomi Andou , Yukio Otome , Katsuya Ishii
摘要： A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, a plurality of discharge channels communicating with the plurality of individual chambers, a plurality of supply-side common chambers connected to the plurality of individual chambers, and a plurality of discharge-side common chambers connected to the plurality of discharge channels. The plurality of discharge-side common chamber has a same fluid resistance.
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公开(公告)号：US20180272743A1
公开(公告)日：2018-09-27
申请号：US15879906
申请日：2018-01-25
申请人： Takayuki Nakai , Toshimichi Odaka , Takakazu Kihira , Takahiro Yoshida , Shiomi Andou , Yukio Otome , Katsuya Ishii
发明人： Takayuki Nakai , Toshimichi Odaka , Takakazu Kihira , Takahiro Yoshida , Shiomi Andou , Yukio Otome , Katsuya Ishii
CPC分类号： B41J2/19 , B41J2/14233 , B41J2/14274 , B41J2/175 , B41J2/17509 , B41J2/17596 , B41J2/18 , B41J2002/14338 , B41J2002/14403 , B41J2202/12 , B41J2202/20 , B41J2202/21
摘要： A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, a plurality of discharge channels communicating with the plurality of individual chambers, a plurality of supply-side common chambers connected to the plurality of individual chambers, and a plurality of discharge-side common chambers connected to the plurality of discharge channels. The plurality of discharge-side common chamber has a same fluid resistance.
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公开(公告)号：US10259231B2
公开(公告)日：2019-04-16
申请号：US15920612
申请日：2018-03-14
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：US10207509B2
公开(公告)日：2019-02-19
申请号：US15258394
申请日：2016-09-07
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：US10737491B2
公开(公告)日：2020-08-11
申请号：US16274380
申请日：2019-02-13
摘要： A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common supply channel, and a common collection channel. The plurality of nozzles discharges a liquid. The plurality of individual liquid chambers communicates with the plurality of nozzles, respectively. The common supply channel communicates with the plurality of individual liquid chambers. The common collection channel communicates with the plurality of individual liquid chambers. At least a part of at least one of the common supply channel and the common collection channel is disposed at a position overlapping with the plurality of individual liquid chambers when the plurality of individual liquid chambers is projected in a vertical direction.
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公开(公告)号：US20190263119A1
公开(公告)日：2019-08-29
申请号：US16274380
申请日：2019-02-13
摘要： A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common supply channel, and a common collection channel. The plurality of nozzles discharges a liquid. The plurality of individual liquid chambers communicates with the plurality of nozzles, respectively. The common supply channel communicates with the plurality of individual liquid chambers. The common collection channel communicates with the plurality of individual liquid chambers. At least a part of at least one of the common supply channel and the common collection channel is disposed at a position overlapping with the plurality of individual liquid chambers when the plurality of individual liquid chambers is projected in a vertical direction.
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