公开(公告)号：US12059901B2

公开(公告)日：2024-08-13

申请号：US17567893

申请日：2022-01-04

Applicant: Takuma Hirabayashi ,  Hiromichi Hirano ,  Ryohta Yoneta ,  Toshiaki Masuda

Inventor： Takuma Hirabayashi ,  Hiromichi Hirano ,  Ryohta Yoneta ,  Toshiaki Masuda

IPC: B41J2/16

CPC classification number: B41J2/161

Abstract: A liquid discharge head having a nozzle substrate including a nozzle from which a liquid is discharged in a liquid discharge direction, a pressure chamber communicating with the nozzle, a diaphragm defining a part of wall of the pressure chamber, and a pressure generator on a first surface of the diaphragm opposite to a second surface of the diaphragm facing the pressure chamber, the pressure generator configured to deform the diaphragm. A gap between a first line and a second line is 40 μm or less in a direction perpendicular to the liquid discharge direction, where the first line extends, in the liquid discharge direction, from a displacement center at which the diaphragm deforms with a maximum displacement amount, and the second line extends from a central position of the nozzle in the liquid discharge direction.

公开(公告)号：US20210229455A1

公开(公告)日：2021-07-29

申请号：US17136207

申请日：2020-12-29

Applicant: Ryohta YONETA

Inventor： Ryohta YONETA

IPC: B41J2/175

Abstract: A liquid discharge apparatus includes a plurality of heads configured to discharge a liquid, a supply channel connected to the plurality of heads, the supply channel configured to supply the liquid to the plurality of heads, a collection channel connected to the plurality of heads, the collection channel configured to collect the liquid from the plurality of heads, a supply damper configured to define a deformable wall of the supply channel, a collection damper configured to define a deformable wall of the collection channel, a supply damper chamber facing the supply damper, a collection damper chamber facing the collection damper, a pressure pump configured to apply a pressure to the supply damper chamber, and a depressurize pump configured to apply a negative pressure to the collection damper chamber.

公开(公告)号：US20140253648A1

公开(公告)日：2014-09-11

申请号：US14186106

申请日：2014-02-21

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/175

CPC classification number: B41J2/14274 ,  B41J2/1612 ,  B41J2/1623 ,  B41J2002/14403 ,  B41J2002/14491

Abstract: A liquid discharge head includes nozzles discharging liquid droplets; liquid chambers in communication with the nozzles; liquid supply paths in communication with the individual liquid chambers; and a common liquid chamber in communication with the liquid supply paths. Further, liquid is supplied from a direction from the common liquid chamber to the liquid supply paths, the direction crossing a direction of liquid flowing in the liquid supply paths, and in a wall surface of the common liquid chamber on a side closer to the individual liquid chambers, an inclined surface is formed in a direction orthogonal to a nozzle array direction in a manner that the common liquid chamber gradually expands as the common liquid chamber approaches the liquid supply paths.

Abstract translation: 液体排出头包括排出液滴的喷嘴; 与喷嘴连通的液体室; 与各个液体室连通的液体供给路径; 以及与液体供应路径连通的公共液体室。 此外，从公共液体室向液体供给路径的方向，与液体供给路径中流动的液体的方向交叉的方向，以及更接近个体的一侧的公共液体室的壁面供给液体 在与公知的液体室接近液体供给路径的情况下，在与喷嘴排列方向正交的方向上形成倾斜面，使得公共液体室逐渐膨胀。

公开(公告)号：US20150077471A1

公开(公告)日：2015-03-19

申请号：US14472494

申请日：2014-08-29

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/14

CPC classification number: B41J2/17563 ,  B41J2/055 ,  B41J2/14274 ,  B41J2/16508 ,  B41J2/1652 ,  B41J2/16538

Abstract: A liquid discharge head includes a nozzle plate, a channel plate, a wall member, and a common liquid chamber. The nozzle plate includes nozzles, and the channel plate forms a plurality of individual channels communicating with the nozzles. The wall member forms at least one portion of a wall of the plurality of individual channels. The common liquid chamber, arranged at a side opposite the plurality of individual channels, supplies liquid to the individual channel. The wall member includes a deformable damper area, a reinforced area, and an area of reduced thickness. The damper area forms one portion of a wall of the common liquid chamber, and the reinforced area divides the damper area into plural areas. The area of reduced thickness, arranged in at least one portion of the reinforced area, has a thickness greater than the damper area and less than the reinforced area.

Abstract translation: 排液头包括喷嘴板，通道板，壁构件和公共液体室。 喷嘴板包括喷嘴，并且通道板形成与喷嘴连通的多个单独通道。 壁构件形成多个单独通道的壁的至少一部分。 布置在与多个单独通道相对的一侧的公共液体室将液体供应到单个通道。 壁构件包括可变形阻尼区域，加强区域和厚度减小的区域。 阻尼器区域形成公共液体室的壁的一部分，并且加强区域将阻尼器区域分成多个区域。 设置在加强区域的至少一部分中的厚度减小的区域的厚度大于阻尼区域并且小于加强区域。

公开(公告)号：US08960876B2

公开(公告)日：2015-02-24

申请号：US14324354

申请日：2014-07-07

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/175 ,  B41J2/16

CPC classification number: B41J2/1612 ,  B41J2/14274 ,  B41J2/17563 ,  B41J2002/14403

Abstract: A liquid ejection head includes nozzles ejecting liquid droplets; individual liquid chambers in communication with the nozzles; liquid supply paths in communication with the individual liquid chambers; a common liquid chamber storing liquid to be supplied to the liquid supply paths; filter members disposed between the common liquid chamber and the respective liquid supply paths, the filter members including filter regions to filter the liquid; and one or more dividing wall sections, each disposed between the liquid supply paths. Further, the filter region of the filter member is bonded to the one or more dividing wall sections and the outer peripheral parts with adhesive and the filter region of the filter member is bent in a direction opposite to a direction in which liquid flows from the common liquid chamber to the liquid supply paths.

Abstract translation: 液体喷射头包括喷射液滴的喷嘴; 与喷嘴连通的单个液体室; 与各个液体室连通的液体供给路径; 储存待供应到液体供应路径的液体的公共液体室; 过滤构件设置在公共液体室和各个液体供应路径之间，过滤构件包括过滤区域以过滤液体; 以及一个或多个分隔壁部分，每个分隔壁部分设置在液体供应路径之间。 此外，过滤器部件的过滤器区域用粘合剂结合到一个或多个分隔壁部分和外周部分，并且过滤部件的过滤器区域沿与液体从公共部分流动的方向相反的方向弯曲 液体室到液体供应路径。

公开(公告)号：US10105944B2

公开(公告)日：2018-10-23

申请号：US15670138

申请日：2017-08-07

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/14 ,  B41J2/01 ,  B41J2/175 ,  B41J2/18

Abstract: A liquid discharge head, includes a plurality of nozzles from which a liquid is discharged, a plurality of individual-liquid-chambers that communicate with the plurality of nozzles, a supply-side common-liquid-chamber to supply the liquid to the plurality of individual-liquid-chambers, a plurality of drainage channels that communicate with the plurality of nozzles, a drainage-side common-liquid-chamber to drain the liquid in the plurality of drainage channels, a supply-side filter disposed upstream from the plurality of nozzles in a liquid flow direction in which the liquid flows through the liquid discharge head; and a drainage-side filter disposed downstream from the plurality of nozzles in the liquid flow direction.

公开(公告)号：US20180072066A1

公开(公告)日：2018-03-15

申请号：US15670138

申请日：2017-08-07

Applicant: Ryohta YONETA

Inventor： Ryohta YONETA

IPC: B41J2/175

CPC classification number: B41J2/01 ,  B41J2/14145 ,  B41J2/14274 ,  B41J2/175 ,  B41J2/17563 ,  B41J2/18 ,  B41J2002/14306 ,  B41J2002/14403 ,  B41J2202/12 ,  B41J2202/20

Abstract: A liquid discharge head, includes a plurality of nozzles from which a liquid is discharged, a plurality of individual-liquid-chambers that communicate with the plurality of nozzles, a supply-side common-liquid-chamber to supply the liquid to the plurality of individual-liquid-chambers, a plurality of drainage channels that communicate with the plurality of nozzles, a drainage-side common-liquid-chamber to drain the liquid in the plurality of drainage channels, a supply-side filter disposed upstream from the plurality of nozzles in a liquid flow direction in which the liquid flows through the liquid discharge head; and a drainage-side filter disposed downstream from the plurality of nozzles in the liquid flow direction.

公开(公告)号：US20140218450A1

公开(公告)日：2014-08-07

申请号：US14146078

申请日：2014-01-02

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/175

CPC classification number: B41J2/17563 ,  B41J2/14274 ,  B41J2002/14403 ,  B41J2202/11

Abstract: A liquid ejection head includes a plurality of nozzles to eject liquid drops; a plurality of individual liquid chambers communicating with the plurality of nozzles; a plurality of liquid inlet portions leading to the plurality of individual liquid chambers; a common liquid chamber to supply liquid to the plurality of individual liquid chambers; and a plurality of filter portions disposed between the common liquid chamber and the liquid inlet portions, each of the filter portions including filter holes and filtering the liquid, wherein a plurality of reinforcement parts are provided to partition the plurality of filter portions, each of the reinforcement parts includes a part facing some of the filter holes of a corresponding one of the plurality of filter portions in a liquid flow direction, with a gap between the filter holes and the reinforcement part.

Abstract translation: 液体喷射头包括喷射液滴的多个喷嘴; 与所述多个喷嘴连通的多个单独的液体室; 多个液体入口部分，通向多个单独的液体室; 用于向多个单独的液体室供应液体的公共液体室; 以及设置在公共液体室和液体入口部之间的多个过滤器部分，每个过滤器部分包括过滤孔并过滤液体，其中设置多个加强部分以分隔多个过滤器部分， 加强部件包括在液体流动方向上面对多个过滤器部分中的相应一个过滤器孔的一些过滤孔的部分，过滤孔和加强部分之间具有间隙。

公开(公告)号：US09120320B2

公开(公告)日：2015-09-01

申请号：US14146078

申请日：2014-01-02

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17563 ,  B41J2/14274 ,  B41J2002/14403 ,  B41J2202/11

Abstract: A liquid ejection head includes a plurality of nozzles to eject liquid drops; a plurality of individual liquid chambers communicating with the plurality of nozzles; a plurality of liquid inlet portions leading to the plurality of individual liquid chambers; a common liquid chamber to supply liquid to the plurality of individual liquid chambers; and a plurality of filter portions disposed between the common liquid chamber and the liquid inlet portions, each of the filter portions including filter holes and filtering the liquid, wherein a plurality of reinforcement parts are provided to partition the plurality of filter portions, each of the reinforcement parts includes a part facing some of the filter holes of a corresponding one of the plurality of filter portions in a liquid flow direction, with a gap between the filter holes and the reinforcement part.

Abstract translation: 液体喷射头包括喷射液滴的多个喷嘴; 与所述多个喷嘴连通的多个单独的液体室; 多个液体入口部分，通向多个单独的液体室; 用于向多个单独的液体室供应液体的公共液体室; 以及设置在公共液体室和液体入口部之间的多个过滤器部分，每个过滤器部分包括过滤孔并过滤液体，其中设置多个加强部分以分隔多个过滤器部分， 加强部件包括在液体流动方向上面对多个过滤器部分中的相应一个过滤器孔的一些过滤孔的部分，过滤孔和加强部分之间具有间隙。

公开(公告)号：US09120319B2

公开(公告)日：2015-09-01

申请号：US14020951

申请日：2013-09-09

Applicant: Ryohta Yoneta

Inventor： Ryohta Yoneta

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17563 ,  B41J2/14274 ,  B41J2002/14403

Abstract: A liquid discharge head includes nozzles configured to discharge liquid droplets; individual flow paths to which the nozzles are connected; a liquid injection unit connected to the individual flow paths; a common liquid room configured to supply liquid to the individual flow paths; and a filter unit configured to filter the liquid. The filter unit is provided between the common liquid room and the liquid injection unit. The filter unit includes a reinforcement area for dividing the filter unit into filter areas each corresponding to two or more of the individual flow paths. A partition wall is provided corresponding to the reinforcement area of the filter unit, on the liquid injection unit side. A width in a nozzle arrangement direction of the partition wall is wider than a width in the nozzle arrangement direction of the reinforcement area.

Abstract translation: 液体排出头包括用于排出液滴的喷嘴; 喷嘴连接到的各个流路; 连接到各个流路的液体注入单元; 配置成将液体供应到各个流路的公共液体室; 以及被配置为过滤所述液体的过滤器单元。 过滤器单元设置在公共液体室和液体注入单元之间。 过滤器单元包括用于将过滤器单元分成过滤器区域的加强区域，每个过滤区域对应于两个或更多个独立流动路径。 在液体注入单元侧，对应于过滤器单元的加强区域设置有分隔壁。 分隔壁的喷嘴排列方向的宽度比加强区域的喷嘴排列方向的宽度宽。