公开(公告)号：US20190240978A1

公开(公告)日：2019-08-08

申请号：US16237798

申请日：2019-01-02

申请人： Koji KAWAHARA ,  Takahiro YOSHIDA

发明人： Koji KAWAHARA ,  Takahiro YOSHIDA

IPC分类号： B41J2/14 ,  B41J2/175 ,  B41J2/15

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, respectively, a supply-side common chamber communicating with each of the plurality of individual chambers, and a recovery-side common chamber communicating with each of the plurality of individual chambers. The supply-side common chamber and a part of the recovery-side common chamber are aligned in a longitudinal direction of the plurality of individual chambers orthogonal to a nozzle array direction along Which the plurality of nozzles is arrayed.

公开(公告)号：US20230330999A1

公开(公告)日：2023-10-19

申请号：US18338518

申请日：2023-06-21

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

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

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：US20220250392A1

公开(公告)日：2022-08-11

申请号：US17660705

申请日：2022-04-26

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 ,  B41J2/175 ,  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：US20220169020A1

公开(公告)日：2022-06-02

申请号：US17516723

申请日：2021-11-02

申请人： Takahiro YOSHIDA

发明人： Takahiro YOSHIDA

IPC分类号： B41J2/045

摘要： A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid, and a drive waveform generator configured to generate a drive waveform to be applied to the liquid discharge head, the drive waveform including a first discharge pulse to cause the liquid discharge head to discharge the liquid, a second discharge pulse after the first discharge pulse, the second discharge pulse to cause the liquid discharge head to discharge the liquid, and a pulse interval between the first discharge pulse and the second discharge pulse, the pulse interval being equal to a time period in which the liquid is discharged by the second discharge pulse in a damping state in which the second discharge pulse is damped by a meniscus vibration generated by the first discharge pulse.

公开(公告)号：US20210001629A1

公开(公告)日：2021-01-07

申请号：US16916773

申请日：2020-06-30

申请人： Takahiro YOSHIDA

发明人： Takahiro YOSHIDA

IPC分类号： B41J2/045 ,  B41J2/155

摘要： A liquid discharge apparatus includes a liquid discharge head to discharge liquid and control circuitry to generate a drive waveform including drive pulses applied to the head. The drive waveform includes a non-discharge pulse not to discharge the liquid and a discharge pulse to discharge the liquid. The non-discharge pulse and the discharge pulse are serial in time in the drive waveform. Td is in a range of Tc−0.2×Tc to Tc+0.45×Tc. Vp1 is in a range of −10% to +10% of Vpp1. Td represents a time interval between the non-discharge pulse and the discharge pulse. Tc represents a natural vibration period of a pressure chamber of the head. Vp1 represents a peak value of the non-discharge pulse. Vpp1 represents a peak value of the non-discharge pulse at which a droplet speed of liquid discharged by the discharge pulse takes a local minimum value.

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

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 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：US20170096015A1

公开(公告)日：2017-04-06

申请号：US15258394

申请日：2016-09-07

申请人： Toshimichi ODAKA ,  Takahiro YOSHIDA ,  Takayuki NAKAI

发明人： Toshimichi ODAKA ,  Takahiro YOSHIDA ,  Takayuki NAKAI

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.

公开(公告)号：US20120301825A1

公开(公告)日：2012-11-29

申请号：US13569715

申请日：2012-08-08

申请人： Takahiro YOSHIDA ,  Shouji Minegishi ,  Masao Arima

发明人： Takahiro YOSHIDA ,  Shouji Minegishi ,  Masao Arima

IPC分类号： G03F7/004

CPC分类号： G03F7/095 ,  G03F7/0047 ,  H05K3/287 ,  H05K3/3452 ,  H05K2201/0195 ,  H05K2201/0209 ,  H05K2201/0269

摘要： In a layered structure having at least a substrate and a photosensitive resin layer or cured film layer formed on the substrate and containing an inorganic filler, the content of the inorganic filler in the photosensitive resin layer or cured film layer is lower in a surface layer region away from the substrate than in other region, so that a linear thermal expansion coefficient of the layer as a whole is maintained as low as possible. Preferably, the photosensitive resin layer or cured film layer comprises at least two layers having different inorganic filler contents, wherein the inorganic filler content in the layer on the surface side away from the substrate is lower than the inorganic filler content in the other layer. A photosensitive dry film containing the photosensitive resin layer is suitable for use as a solder resist or an interlayer resin insulation layer of a printed wiring board.

摘要翻译： 在至少具有基板和形成在基板上并含有无机填料的感光性树脂层或固化膜层的分层结构中，感光性树脂层或固化膜层中的无机填料的含量在表面层区域 远离衬底而不是在其他区域，使得整个层的线性热膨胀系数保持尽可能低。 优选地，感光性树脂层或固化膜层包含至少两层具有不同无机填料含量的层，其中离开基材的表面侧的层中的无机填料含量低于另一层中的无机填料含量。 含有感光性树脂层的感光性干膜适合用作印刷电路板的阻焊剂或层间树脂绝缘层。

公开(公告)号：US20120236080A1

公开(公告)日：2012-09-20

申请号：US13417417

申请日：2012-03-12

申请人： Takahiro YOSHIDA ,  Hiroomi Yokomaku

发明人： Takahiro YOSHIDA ,  Hiroomi Yokomaku

IPC分类号： B41J2/045

CPC分类号： B41J2/14233 ,  B41J2/14274 ,  B41J2002/14403 ,  B41J2202/11

摘要： A liquid ejection head includes a channel plate, a diaphragm member, and a piezoelectric member. The channel plate includes a separate liquid chamber, a fluid resistance portion, and a liquid introducing portion. The diaphragm member has a thin layer and a thick layer. The thin layer forms a wall face of each of the separate liquid chamber, the resistance portion, and the introducing portion and includes a vibration area facing the separate liquid chamber. The piezoelectric member is arranged to deform the vibration area and has a portion opposing the introducing portion. The thin layer has a thin portion forming the wall face of the introducing portion. The thick layer has a thick portion formed along the longitudinal direction of the separate liquid chamber on a first face opposite a second face opposing the introducing portion. In a plan view, the thin portion is divided by the thick portion.

摘要翻译： 液体喷射头包括通道板，隔膜部件和压电部件。 通道板包括单独的液体室，流体阻力部分和液体引入部分。 隔膜构件具有薄层和厚层。 薄层形成分离的液体室，电阻部分和引入部分中的每一个的壁面，并且包括面向分开的液体室的振动区域。 压电部件被布置成使振动区域变形并且具有与引入部分相对的部分。 薄层具有形成导入部的壁面的薄壁部。 厚层在与引导部相对的第二面相对的第一面上沿着分离液室的长度方向形成有厚壁部。 在平面图中，薄部分被厚部分开。

公开(公告)号：US20240173984A1

公开(公告)日：2024-05-30

申请号：US18520597

申请日：2023-11-28

申请人： Satomi ARAKI ,  Takahiro YOSHIDA

发明人： Satomi ARAKI ,  Takahiro YOSHIDA

IPC分类号： B41J2/175

CPC分类号： B41J2/175 ,  B41J2/04531

摘要： A head module includes at least two liquid discharge heads, a reservoir, a heater, an inlet, a first outlet, a second outlet, and a wall member. The liquid discharge heads discharge liquid. The reservoir stores the liquid. The heater heats the liquid in the reservoir. The liquid is to be introduced from the inlet into the reservoir. The liquid in the reservoir is to be delivered from the first outlet to one of the liquid discharge heads. The liquid in the reservoir is to be delivered from the second outlet to another of the liquid discharge heads. A distance between the inlet and the first outlet is shorter than a distance between the inlet and the second outlet. The wall member is interposed between the inlet and the first outlet.