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.

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

IPC分类号： B41J2/14 ,  B41J2/17 ,  B41J2/175

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.

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.

公开(公告)号：US20210178776A1

公开(公告)日：2021-06-17

申请号：US17183740

申请日：2021-02-24

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

IPC分类号： B41J2/18 ,  B41J2/175 ,  B41J2/14

摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.

公开(公告)号：US20200282740A1

公开(公告)日：2020-09-10

申请号：US16881276

申请日：2020-05-22

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

IPC分类号： B41J2/18 ,  B41J2/175 ,  B41J2/14

摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.

公开(公告)号：US20180257374A1

公开(公告)日：2018-09-13

申请号：US15981763

申请日：2018-05-16

申请人： Takahiro YOSHIDA ,  Tomohiko KOHDA ,  Takeshi SHIMIZU ,  Kanshi ABE ,  Ryo KASAHARA ,  Takayuki NAKAI ,  Shiomi ANDOU

发明人： Takahiro YOSHIDA ,  Tomohiko KOHDA ,  Takeshi SHIMIZU ,  Kanshi ABE ,  Ryo KASAHARA ,  Takayuki NAKAI ,  Shiomi ANDOU

IPC分类号： B41J2/14

摘要： A liquid ejection head is provided. The liquid ejection head includes at least two nozzle lines configured to have a plurality of nozzles for ejecting liquid disposed in respective lines, a plurality of individual liquid chambers configured to be in communication with corresponding nozzles of the nozzle lines, and at least two circulation channels corresponding to the nozzle lines, configured to be in communication with the individual liquid chambers. The at least two circulation channels are in communication with each other through a bridging channel disposed in a direction intersecting with the nozzle line direction, and the bridging channel and the circulation channels are disposed at different positions in a thickness direction of a member which forms the bridging channel and the circulation channels.

公开(公告)号：US20160096369A1

公开(公告)日：2016-04-07

申请号：US14855920

申请日：2015-09-16

申请人： Takeshi SHIMIZU ,  Tomohiko KOHDA ,  Takahiro YOSHIDA ,  Kanshi ABE ,  Shiomi ANDOU ,  Takayuki NAKAI ,  Ryo KASAHARA

发明人： Takeshi SHIMIZU ,  Tomohiko KOHDA ,  Takahiro YOSHIDA ,  Kanshi ABE ,  Shiomi ANDOU ,  Takayuki NAKAI ,  Ryo KASAHARA

IPC分类号： B41J2/14

CPC分类号： B41J2/14274 ,  B41J2/14233 ,  B41J2/1612 ,  B41J2/1632 ,  B41J2202/11

摘要： A disclosed liquid-ejection head for ejecting liquid droplets includes a substrate having a diaphragm forming a part of walls of a pressure liquid chamber, and a piezoelectric element adhered to the substrate with adhesive, and configured to apply pressure to the pressure liquid chamber via the diaphragm. The piezoelectric element has a surface facing the substrate having the diaphragm, and the surface has one or more projection parts in an area in which the pressure liquid chamber is not disposed, and whereon the substrate having the diaphragm has one or more recess parts that fit in the respective projection parts.

摘要翻译： 所公开的用于喷射液滴的液体喷射头包括具有形成压力液体室的壁的一部分的隔膜的基板和用粘合剂粘附到基板的压电元件，并经配置以经由该压力液体室向压力液体室施加压力 隔膜 压电元件具有面向具有隔膜的基板的表面，并且表面在未设置压力液体室的区域中具有一个或多个突出部分，并且其中具有隔膜的基板具有一个或多个适合的凹部 在相应的投影部分。

公开(公告)号：US20200094573A1

公开(公告)日：2020-03-26

申请号：US16695790

申请日：2019-11-26

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

IPC分类号： B41J2/18 ,  B41J2/14 ,  B41J2/175

摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.

公开(公告)号：US20170297333A1

公开(公告)日：2017-10-19

申请号：US15638724

申请日：2017-06-30

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

IPC分类号： B41J2/14 ,  B41J2/16 ,  B41J2/175

CPC分类号： B41J2/18 ,  B41J2/14104 ,  B41J2/14274 ,  B41J2/175 ,  B41J2/17509 ,  B41J2/17563 ,  B41J2002/14403 ,  B41J2002/14419 ,  B41J2202/07 ,  B41J2202/11 ,  B41J2202/12

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.

公开(公告)号：US20160082728A1

公开(公告)日：2016-03-24

申请号：US14849869

申请日：2015-09-10

申请人： Tomohiko Kohda ,  Takeshi SHIMIZU ,  Ryo KASAHARA ,  Kanshi ABE ,  Takayuki NAKAI ,  Takahiro YOSHIDA ,  Shiomi ANDOU

发明人： Tomohiko Kohda ,  Takeshi SHIMIZU ,  Ryo KASAHARA ,  Kanshi ABE ,  Takayuki NAKAI ,  Takahiro YOSHIDA ,  Shiomi ANDOU

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/14274 ,  B41J2002/14403 ,  B41J2202/11

摘要： A liquid discharge head includes a nozzle plate having nozzles arrayed to discharge liquid droplets; a passage plate to form individual liquid chambers communicating with the respective nozzles; and a wall surface member to form a wall surface of the individual liquid chambers. The passage plate is formed with at least three plate-shaped members stacked and bonded by an adhesive. The nozzle plate and one plate-shaped member, and another plate-shaped member and the wall surface member are bonded, respectively. The three plate-shaped members include separation wall parts forming separation walls between the individual liquid chambers. At least one of the three plate-shaped members has a separation wall width different from that of the others, to have fillets of the forced-out adhesive formed between the wall surfaces, and surfaces of the plate-shaped members, the nozzle plate, or the wall surface member.

摘要翻译： 液体排出头包括喷嘴板，喷嘴板具有排出液滴的喷嘴; 通道板，以形成与相应喷嘴连通的单独的液体室; 以及壁表面构件以形成各个液体室的壁表面。 通道板形成有至少三个由粘合剂堆叠和粘合的板状构件。 喷嘴板和一个板状构件以及另一个板状构件和壁面构件分别接合。 三个板状构件包括在各个液体室之间形成分隔壁的分离壁部分。 三个板状构件中的至少一个具有与其它板状构件不同的分隔壁宽度，在壁面之间形成有强制脱出粘合剂的圆角，并且板状构件，喷嘴板， 或壁表面构件。