公开(公告)号：US08684507B2

公开(公告)日：2014-04-01

申请号：US13076334

申请日：2011-03-30

申请人： Haruhisa Uezawa

发明人： Haruhisa Uezawa

IPC分类号： B41J2/18

CPC分类号： B41J2/18 ,  B41J2/14233 ,  B41J29/02 ,  B41J2202/11

摘要： A liquid ejecting head comprising, a plurality of nozzle openings, a first flow passage, a circulation flow passage, a filter chamber, and a bypass flow passage, an inner diameter of the bypass flow passage is larger than a diameter of the hole of the filter, the inner diameter of the bypass flow passage is larger than a diameter of the nozzle opening, and a flow passage resistance of the bypass flow passage is larger than a flow passage resistance of the circulation flow passage from a branch point where the bypass flow passage branches from the supply passage to a junction point where the bypass flow passage merges into the collection passage.

摘要翻译： 一种液体喷射头，包括多个喷嘴开口，第一流动通道，循环流动通道，过滤室和旁通流动通道，旁通流动通道的内径大于 过滤器，旁通流路的内径大于喷嘴开口的直径，旁通流路的流路阻力大于来自旁路流量的分支点的循环流路的流路阻力 通道从供应通道分支到旁路流动通道合并到收集通道中的连接点。

公开(公告)号：US08596775B2

公开(公告)日：2013-12-03

申请号：US13590923

申请日：2012-08-21

申请人： Kaoru Koike ,  Toshio Kumagai ,  Masaaki Ando ,  Haruhisa Uezawa

发明人： Kaoru Koike ,  Toshio Kumagai ,  Masaaki Ando ,  Haruhisa Uezawa

IPC分类号： B41J2/19 ,  B41J2/175

CPC分类号： B41J2/19 ,  B41J2/175 ,  B41J2/17563 ,  B41J2/18 ,  B41J29/38

摘要： A filter unit includes: a space portion, through which a liquid passes, whose outer cross-sectional shape when cut along the direction orthogonal to the axial direction is circular or polygonal; a filter provided at the surface on one end side of the space portion in the axial direction thereof; a protruding member, provided at the surface on the other end side of the space portion in the axial direction thereof, that protrudes toward a center area of the surface on the one end side of the space portion; an inflow channel that allows the liquid to flow into the space portion from a direction tangential to the side circumferential surface of the space portion; and an outflow channel that allows the liquid to pass through the filter and flow out from the space portion.

公开(公告)号：US20110316935A1

公开(公告)日：2011-12-29

申请号：US13081198

申请日：2011-04-06

申请人： Masahiko Sato ,  Hiroyuki Hagiwara ,  Haruhisa Uezawa

发明人： Masahiko Sato ,  Hiroyuki Hagiwara ,  Haruhisa Uezawa

IPC分类号： B41J2/05

CPC分类号： B41J2/14274 ,  B41J2002/14362 ,  B41J2202/08

摘要： A liquid ejection head including: a flow channel unit including a nozzle plate, and a flow-channel-containing substrate, the nozzle plate and the flow-channel-containing substrate being laminated, a head case formed with a common liquid flow channel configured to supply the liquid to the reservoir and joined to the flow-channel-containing substrate on the side opposite from the nozzle plate; a heater configured to heat the nozzle plate; a head cover heated by the heater and formed with a bottom surface portion opposing the nozzle plate on the side opposite from the head case, wherein a distal end of the head cover comes into abutment with a portion between an area of the nozzle plate corresponding to the reservoir and an area formed with the nozzle row, and a void is formed between the area of the nozzle plate corresponding to the reservoir and the head cover.

摘要翻译： 一种液体喷射头，包括：流路单元，包括喷嘴板和含流路的基板，所述喷嘴板和所述流道通道基板被层压，形成有公共液流通道的头部壳体， 将液体供应到储存器并且在与喷嘴板相对的一侧上接合到含流路槽的基板; 配置为加热喷嘴板的加热器; 由所述加热器加热并形成与所述喷嘴板相对的所述喷嘴板的与所述头壳体相反的一侧的底表面部分的头罩，其中所述头罩的远端与所述喷嘴板的与所述喷嘴板的相对应的区域之间的部分邻接 储存器和形成有喷嘴列的区域，并且在对应于储存器的喷嘴板的区域和盖罩之间形成空隙。

公开(公告)号：US07878638B2

公开(公告)日：2011-02-01

申请号：US11854334

申请日：2007-09-12

申请人： Takashi Akase ,  Haruhisa Uezawa

发明人： Takashi Akase ,  Haruhisa Uezawa

IPC分类号： B41J2/19 ,  B41J2/175

CPC分类号： B41J2/17513 ,  B41J2/17563

摘要： The invention provides a liquid ejecting head which is capable of introducing liquid from a liquid storage member to a pressure chamber through a liquid flow channel and discharging the liquid in the pressure chamber from a nozzle opening as liquid drops by an operation of pressure generating means including: a filter chamber in the middle of the liquid flow channel, the filter chamber having a diameter larger than other portions of the liquid flow channel and having a filter disposed therein for filtering the liquid in the liquid flow channel, wherein the filter chamber includes a liquid repellent area having a static contract angle with respect to liquid larger than that of the inner wall on the downstream side of the filter formed on the inner wall in the vicinity of the filter on the upstream side thereof.

摘要翻译： 本发明提供了一种液体喷射头，其能够通过液体流动通道将液体从液体存储部件引入压力室，并且通过压力产生装置的操作使液体从喷嘴开口排出，包括 ：在液体流动通道中间的过滤室，所述过滤室的直径大于所述液体流动通道的其它部分，并且具有设置在其中的过滤器，用于过滤所述液体流动通道中的液体，其中所述过滤室包括： 防水区域相对于液体的静态收缩角大于在其上游侧的过滤器附近的内壁上形成的过滤器的下游侧的内壁的静态收缩角。

公开(公告)号：US08851614B2

公开(公告)日：2014-10-07

申请号：US13413619

申请日：2012-03-06

申请人： Hiroshige Owaki ,  Haruhisa Uezawa

发明人： Hiroshige Owaki ,  Haruhisa Uezawa

IPC分类号： B41J29/393 ,  B41J2/045 ,  B41J2/14 ,  B41J2/055

CPC分类号： B41J2/14233 ,  B41J2/04563 ,  B41J2/04581 ,  B41J2/055 ,  B41J2002/14241

摘要： A liquid ejection head includes a nozzle plate on which nozzle openings for ejecting liquid are provided, a flow path formation substrate on which pressure generation chambers communicating with the nozzle openings are provided, communicating portions in which the liquid to be supplied to the pressure generation chambers is stored, and piezoelectric elements which generate pressure change in the liquid in the pressure generation chambers. In the liquid ejection head, a thermistor is arranged on a surface of the flow path formation substrate at an opposite side to the nozzle openings and one lead wiring of the thermistor is connected to wiring layers which are formed on the surface of the flow path formation substrate in a state where one side ends of the wiring layers face to the communicating portions.

摘要翻译： 液体喷射头包括：喷嘴板，在喷嘴板上设置用于喷射喷嘴的喷嘴开口;流路形成基板，在其上设置有与喷嘴开口连通的压力产生室，连通部分，供应给压力产生室的液体 以及在压力发生室中的液体中产生压力变化的压电元件。 在液体喷射头中，热敏电阻设置在与喷嘴开口相反侧的流路形成基板的表面上，热敏电阻的一个引线连接到形成在流路形成表面上的布线层 在布线层的一侧端部与连通部相对的状态下的基板。

公开(公告)号：US08608275B2

公开(公告)日：2013-12-17

申请号：US13246708

申请日：2011-09-27

申请人： Hiroshige Owaki ,  Haruhisa Uezawa

发明人： Hiroshige Owaki ,  Haruhisa Uezawa

IPC分类号： B41J29/38 ,  B41J2/04 ,  B41J2/05

CPC分类号： B41J2/14274 ,  B41J2002/14362 ,  B41J2202/08

摘要： A liquid ejecting head includes a flow path unit that has a nozzle line formed by a plurality of nozzles and includes a flow path communicating with the nozzles, a head case that forms a shared liquid flow path for supplying a liquid to the flow path of the flow path unit and is connected with the flow path unit, and a sheet-like heater that is mounted on a side surface of the head case and has a continuous heat-generatable heating element folded multiple times. A portion of the heating element located in a region close to a position opposing the shared liquid flow path is narrower than a portion of the heating element located at a position other than the region.

摘要翻译： 液体喷射头包括流路单元，该流路单元具有由多个喷嘴形成的喷嘴线，并且包括与喷嘴连通的流路，头壳，其形成用于将液体供给到流路的共用液流路径 流路单元并与流路单元连接，并且安装在头箱的侧表面上并具有多次折叠的连续的热产生加热元件的片状加热器。 位于靠近与共享液体流动路径相对的位置的区域中的加热元件的一部分比位于该区域以外的位置的加热元件的部分更窄。

公开(公告)号：US20120075387A1

公开(公告)日：2012-03-29

申请号：US13246708

申请日：2011-09-27

申请人： Hiroshige Owaki ,  Haruhisa Uezawa

发明人： Hiroshige Owaki ,  Haruhisa Uezawa

IPC分类号： B41J2/05

CPC分类号： B41J2/14274 ,  B41J2002/14362 ,  B41J2202/08

摘要： A liquid ejecting head includes a flow path unit that has a nozzle line formed by a plurality of nozzles and includes a flow path communicating with the nozzles, a head case that forms a shared liquid flow path for supplying a liquid to the flow path of the flow path unit and is connected with the flow path unit, and a sheet-like heater that is mounted on a side surface of the head case and has a continuous heat-generatable heating element folded multiple times. A portion of the heating element located in a region close to a position opposing the shared liquid flow path is narrower than a portion of the heating element located at a position other than the region.

摘要翻译： 液体喷射头包括流路单元，该流路单元具有由多个喷嘴形成的喷嘴线，并且包括与喷嘴连通的流路，头壳，其形成用于将液体供给到流路的共用液流路径 流路单元并与流路单元连接，并且安装在头箱的侧表面上并具有多次折叠的连续的热产生加热元件的片状加热器。 位于靠近与共享液体流动路径相对的位置的区域中的加热元件的一部分比位于该区域以外的位置的加热元件的部分更窄。

公开(公告)号：US08113633B2

公开(公告)日：2012-02-14

申请号：US12361895

申请日：2009-01-29

申请人： Yusuke Hirasawa ,  Haruhisa Uezawa

发明人： Yusuke Hirasawa ,  Haruhisa Uezawa

IPC分类号： B41J2/045 ,  B41J2/14

CPC分类号： B41J2/14233 ,  B41J2/161 ,  B41J2/1623

摘要： A liquid ejecting head includes a passage unit made by laminating a plurality of plates including a first plate having a first through-hole with a first size and a second plate having a second through-hole with a second size which is larger than the first size. The first plate and the second plate are bonded with adhesive so that the first through-hole and the second through-hole in communication with each other. The affinity for the adhesive to bond to the inner peripheral surface of the second through-hole is set to be at least higher than the affinity for the adhesive to bond to the area around the opening of the first through-hole. Adhesive that flows out from between the first plate and the second plate at the time of bonding of the first plate and the second plate is guided to the inner peripheral surface of the second through-hole.

摘要翻译： 液体喷射头包括：通过层叠多个板的通道单元，所述多个板包括具有第一尺寸的第一通孔的第一板和具有大于第一尺寸的第二尺寸的第二通孔的第二板 。 第一板和第二板用粘合剂粘合，使得第一通孔和第二通孔彼此连通。 将粘合剂与第二贯通孔的内周面接合的亲和性设定为至少高于粘合剂与第一贯通孔的开口周围的区域的亲和性。 在第一板和第二板的接合时从第一板和第二板之间流出的粘合剂被引导到第二通孔的内周面。

公开(公告)号：US07819514B2

公开(公告)日：2010-10-26

申请号：US11752792

申请日：2007-05-23

申请人： Haruhisa Uezawa

发明人： Haruhisa Uezawa

IPC分类号： B41J2/19 ,  B41J2/175

CPC分类号： B41J2/19 ,  B41J2/17523 ,  B41J2/17563

摘要： A liquid ejecting apparatus includes a first flow path for supplying liquid, a second flow path that communicates with the first flow path, a filter disposed to face communication holes of the first and second flow paths, and an air bubble locking section that locks an air bubble in the communication hole of the second flow path at a time when the air bubble is discharged from the second flow path through the filter.

摘要翻译： 液体喷射装置包括用于供应液体的第一流动路径，与第一流动路径连通的第二流动路径，设置成面对第一和第二流动路径的连通孔的过滤器和锁定空气的气泡锁定部分 在气泡从第二流路通过过滤器排出时，在第二流路的连通孔内起泡。

公开(公告)号：US20100225718A1

公开(公告)日：2010-09-09

申请号：US12710820

申请日：2010-02-23

申请人： Haruhisa Uezawa

发明人： Haruhisa Uezawa

IPC分类号： B41J2/175

CPC分类号： B41J2/17509 ,  B41J2/17563 ,  B41J2/17596

摘要： A liquid supply apparatus includes a liquid supply passage that supplies liquid from an upstream liquid supply source side to a downstream side where the liquid is consumed and a filter chamber midway in the liquid supply passage. The filter chamber has a filter that catches air bubbles in the liquid. The liquid supply passage has a pressure chamber upstream of the filter chamber. The pressure chamber is defined by a first movable wall that moves upon receiving pressure in the pressure chamber and by a second movable wall. The second movable wall receives force from the first movable wall upon displacement thereof. The second movable wall displaces toward the side of reducing the volume of the filter chamber by the force transmitted by the first movable wall when the pressure chamber and the filter chamber are pressurized from upstream side of the pressure chamber.

摘要翻译： 液体供应装置包括：液体供应通道，其从上游液体供应源侧向液体消耗的下游侧供应液体，并且在液体供应通道中途提供过滤器室。 过滤室具有捕获液体中的气泡的过滤器。 液体供应通道在过滤室的上游具有压力室。 压力室由第一可移动壁限定，该第一可移动壁在压力室中受到压力和第二可移动壁的移动。 第二可移动壁在其移动时从第一活动壁接收力。 当压力室和过滤室从压力室的上游侧被加压时，第二活动壁朝着通过第一可移动壁传递的力而减小过滤室的容积的一侧。