公开(公告)号：US06419344B2

公开(公告)日：2002-07-16

申请号：US09808165

申请日：2001-03-13

申请人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

发明人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

IPC分类号： B41J204

CPC分类号： B41J2/14314 ,  B41J2002/14403 ,  B41J2002/14419 ,  B41J2202/21

摘要： An ink-jet head includes a plurality of ink ejection nozzles, a plurality of ink pressure chambers provided corresponding to the respective ink ejection nozzles and respectively communicated with the corresponding ink ejection nozzles, a common ink chamber for supplying an ink to the respective of the ink pressure chambers, a plurality of ink supply orifices provided corresponding to the respective ink pressure chambers and communicating the respective ink pressure chambers and the common ink chamber, and electrostatic actuators for varying volume of respective of the ink pressure chambers by an electrostatic force for ejection of ink droplets from the corresponding ink ejection nozzles. A plurality of the ink pressure chambers is arranged in a plane and the common ink chamber stacked on the plurality of ink pressure chambers for reducing the length.

摘要翻译： 喷墨头包括多个喷墨喷嘴，多个墨水压力室，其相应于各个喷墨喷嘴设置并分别与相应的喷墨喷嘴连通，一个用于将油墨供应给相应墨水喷嘴的公共墨水室 墨水压力室，对应于各个墨水压力室设置的多个墨水供应孔，并且连通各个墨水压力室和公共墨水室;以及静电致动器，用于通过用于喷射的静电力使各个墨水压力室的体积变化 的墨滴从相应的喷墨喷嘴。 多个墨压力室布置在平面中，并且公共墨水室堆叠在多个墨水压力室上以减小长度。

公开(公告)号：US06481833B1

公开(公告)日：2002-11-19

申请号：US09635997

申请日：2000-08-09

申请人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

发明人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

IPC分类号： B41J2045

CPC分类号： B41J2/04588 ,  B41J2/04525 ,  B41J2/04541 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/14314

摘要： Undesirable deflection of partitioning walls between ink pressure chambers is prevented during ink discharge operations even when the partitioning walls are made very thin to achieve a high density inkjet head. The diaphragms of the discharge nozzles of the inkjet head as well as the diaphragms of the non-discharge nozzles are all driven to contact the corresponding individual electrodes, and this diaphragm to individual electrode contact state is maintained in the non-discharge nozzles while the diaphragms of the discharge nozzles are released from individual electrodes to discharge ink. After printing is completed the diaphragms of the non-discharge nozzles are slowly released from the corresponding individual electrodes at a speed that will not cause undesirable ink discharge. By thus maintaining low compliance in the ink pressure chambers of the non-discharge nozzles, deformation of the partitioning walls between discharge and non-discharge nozzles due to change in the ink pressure can be reliably prevented. A drop in ink discharge performance due to such partitioning wall deformation can be reliably prevented, and printing with high resolution, precise print quality can be easily achieved.

摘要翻译： 即使当分隔壁非常薄以达到高密度喷墨头时，在喷墨操作期间也防止了油墨压力室之间的分隔壁的不期望的偏转。 喷墨头的排出喷嘴的隔膜以及非排出喷嘴的隔膜都被驱动以接触相应的单个电极，并且该隔膜保持在非排放喷嘴中，而隔膜保持在单独的电极接触状态 的排出喷嘴从各个电极释放以排出墨。 在完成打印之后，不排出喷嘴的隔膜以不会导致不期望的墨水排放的速度从相应的单独电极缓慢释放。 通过这样维持在非排出喷嘴的墨压力室中的低柔顺性，可以可靠地防止由于墨压力的变化引起的排出喷嘴与非排放喷嘴之间的分隔壁的变形。 可以可靠地防止由于这种分隔壁变形引起的喷墨性能下降，并且可以容易地实现具有高分辨率，精确打印质量的打印。

公开(公告)号：US06474784B1

公开(公告)日：2002-11-05

申请号：US09601833

申请日：2000-08-07

申请人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

发明人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

IPC分类号： B41J204

CPC分类号： B41J2/04578 ,  B41J2/04588 ,  B41J2/055 ,  B41J2/14314

摘要： An ink-jet head ejects an ink droplet from an ink nozzle by the charging and discharging between a counter electrode and vibrating plates. The counter electrode comprises a main electrode and an auxiliary electrode, which is provided on the ink-nozzle's side in common with the vibrating plates. Auxiliary charging between the auxiliary electrode and the vibrating plates is effected to vibrate a meniscus in the ink nozzle without ejecting a useless droplet. Consequently, the ink is prevented from forming a film on the meniscus, and an increase of the viscosity of the ink due to evaporation of the ink solvent is prevented by diffusing the ink in the ink passage.

摘要翻译： 喷墨头通过对电极和振动板之间的充电和放电从喷墨嘴喷射墨滴。 对电极包括与振动板共同设置在墨喷嘴侧的主电极和辅助电极。 在辅助电极和振动板之间进行辅助充电以使墨水喷嘴中的弯液面振动，而不会弹出无用的液滴。 因此，防止油墨在弯液面上形成膜，并且通过将油墨扩散到油墨通道中来防止油墨溶剂蒸发引起的油墨粘度增加。

公开(公告)号：US06491378B2

公开(公告)日：2002-12-10

申请号：US09754533

申请日：2001-01-04

申请人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

发明人： Masahiro Fujii ,  Hiroyuki Ishikawa ,  Yasushi Matsuno

IPC分类号： B41J206

CPC分类号： B41J2/04541 ,  B41J2/04578 ,  B41J2/04588 ,  B41J2/04595 ,  B41J2/04596 ,  B41J2/14314

摘要： In an ink jet head that reduces failure or abnormality in ink ejection, electric charge/discharge is applied between opposed electrodes and diaphragms to eject ink droplets from ink nozzles. Each of the opposed electrodes includes a main electrode and a sub-electrode formed on the nozzle side and in common with sub-electrodes for the other diaphragms. Auxiliary electric charge is applied between the sub-electrode and the diaphragms so that the menisci or ink in the ink nozzles vibrate without ejecting unnecessary ink droplets and to shorten the time for tail portions of ejected ink columns to leave the ink nozzles. Ink in ink channels is diffused so that the ink viscosity does not increase due to evaporation of ink solvent. Also, the menisci in the nozzles are drawn into the ink chambers so that unnecessary ink droplets are not ejected immediately after printing ink droplets are ejected.

摘要翻译： 在降低墨水喷射的故障或异常的喷墨头中，在相对的电极和隔膜之间施加电荷/放电以从墨水喷嘴喷射墨滴。 每个相对电极包括形成在喷嘴侧上的主电极和副电极，并且与用于其它隔膜的子电极共同。 辅助电荷施加在子电极和隔膜之间，使得墨水喷嘴中的半月板或墨水不会喷出不必要的墨滴并缩短喷射墨水柱尾部离开墨水喷嘴的时间。 油墨通道中的油墨扩散，使得由于油墨溶剂的蒸发而导致油墨粘度不增加。 此外，喷嘴中的半月板被吸入墨室中，使得在喷墨墨滴之后不再喷出不必要的墨滴。

公开(公告)号：US07530670B2

公开(公告)日：2009-05-12

申请号：US11314642

申请日：2005-12-21

申请人： Tomonori Matsushita ,  Yasushi Matsuno ,  Masahiro Fujii

发明人： Tomonori Matsushita ,  Yasushi Matsuno ,  Masahiro Fujii

IPC分类号： B41J2/04

CPC分类号： B41J2/16 ,  B41J2/14314 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14411

摘要： To provide an electrostatic actuator, etc. which is capable of miniaturizing the size, and preventing moisture, etc. from entering a gap in an effective manner. An electrostatic actuator includes an electrode substrate 10 having individual electrodes 12 as fixed electrodes, and a cavity substrate 20 having diaphragms 22 as movable electrodes which are disposed so as to be opposed to the fixed electrodes 12 with a predetermined distance, and operated due to an electrostatic force occurring between the cavity substrate 20 and the individual electrodes 12. Sealing portions 26a are formed on one of the electrode substrate 10 and the cavity substrate 20, each of the sealing portions 26a has a plurality of sealing layers (a TEOS layer 25a, a moisture permeation preventing layer 25b) laminated one another, and each of the sealing layers is made of a sealing material 25 for isolating a space formed between the individual electrode 12 and the diaphragm 22.

摘要翻译： 提供能够使尺寸小型化并且防止湿气等以有效的方式进入间隙的静电致动器等。 静电致动器包括具有作为固定电极的单独电极12的电极基板10和具有作为可动电极的隔膜22的空腔基板20，该隔膜22以与预定距离的固定电极12相对的方式设置， 在空穴基板20和各个电极12之间产生静电力。密封部分26a形成在电极基板10和空腔基板20之一上，每个密封部分26a具有多个密封层（TEOS层25a， 防潮层25b），并且每个密封层由用于隔离形成在单独电极12和隔膜22之间的空间的密封材料25制成。

公开(公告)号：US20060186174A1

公开(公告)日：2006-08-24

申请号：US11354619

申请日：2006-02-15

申请人： Yasushi Matsuno ,  Masahiro Fujii ,  Akira Sano

发明人： Yasushi Matsuno ,  Masahiro Fujii ,  Akira Sano

IPC分类号： B23K1/00 ,  B23K5/00 ,  B23K20/08

CPC分类号： B41J2/14314 ,  B41J2002/14411 ,  B41J2002/14491

摘要： A droplet jet head includes a nozzle substrate having a plurality of nozzle holes; a cavity substrate having recesses whose bottoms serve as diaphragms, and the recesses serving as ejection chambers; an electrode substrate having separate electrodes opposed to the diaphragms; a reservoir substrate having a recess serving as a common droplet chamber for supplying droplets to the ejection chambers, through holes for transferring the droplets from the common droplet chamber to the ejection chambers, and nozzle communicating holes for transferring the droplets from the ejection chambers to the nozzle holes; and a driver IC that supplies a driving signal to the separate electrodes. The cavity substrate has a first hole, and the reservoir substrate has a second hole. The first hole and the second hole communicate with each other to form a housing. The driver IC is housed in the housing.

摘要翻译： 液滴喷头包括具有多个喷嘴孔的喷嘴基板; 具有凹部的空腔基板，其底部用作隔膜，所述凹部用作喷射室; 具有与隔膜相对的分离电极的电极基板; 储存器基板，其具有用作向喷射室供应液滴的共同液滴室的凹槽，通过用于将液滴从共同液滴室传送到喷射室的孔，以及用于将液滴从喷射室传送到喷嘴的喷嘴连通孔 喷嘴孔; 以及向单独的电极提供驱动信号的驱动器IC。 空腔基板具有第一孔，并且储存器基板具有第二孔。 第一孔和第二孔彼此连通以形成壳体。 驱动器IC安装在外壳中。

公开(公告)号：US20060139409A1

公开(公告)日：2006-06-29

申请号：US11314642

申请日：2005-12-21

申请人： Tomonori Matsushita ,  Yasushi Matsuno ,  Masahiro Fujii

发明人： Tomonori Matsushita ,  Yasushi Matsuno ,  Masahiro Fujii

IPC分类号： B41J2/06

CPC分类号： B41J2/16 ,  B41J2/14314 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14411

摘要： To provide an electrostatic actuator, etc. which is capable of miniaturizing the size, and preventing moisture, etc. from entering a gap in an effective manner. An electrostatic actuator includes an electrode substrate 10 having individual electrodes 12 as fixed electrodes, and a cavity substrate 20 having diaphragms 22 as movable electrodes which are disposed so as to be opposed to the fixed electrodes 12 with a predetermined distance, and operated due to an electrostatic force occurring between the cavity substrate 20 and the individual electrodes 12. Sealing portions 26a are formed on one of the electrode substrate 10 and the cavity substrate 20, each of the sealing portions 26a has a plurality of sealing layers (a TEOS layer 25a, a moisture permeation preventing layer 25b) laminated one another, and each of the sealing layers is made of a sealing material 25 for isolating a space formed between the individual electrode 12 and the diaphragm 22.

摘要翻译： 提供能够使尺寸小型化并且防止湿气等以有效的方式进入间隙的静电致动器等。 静电致动器包括具有作为固定电极的单独电极12的电极基板10和具有作为可动电极的隔膜22的空腔基板20，该隔膜22以与预定距离的固定电极12相对的方式设置， 在空腔基板20和各电极12之间产生静电力。密封部分26a形成在电极基板10和空腔基板20之一上，每个密封部分26a具有多个密封层（TEOS层 如图25a所示，防潮层25b）彼此层叠，并且每个密封层由用于隔离形成在单独电极12和隔膜22之间的空间的密封材料25制成。

公开(公告)号：US07658471B2

公开(公告)日：2010-02-09

申请号：US11354619

申请日：2006-02-15

申请人： Yasushi Matsuno ,  Masahiro Fujii ,  Akira Sano

发明人： Yasushi Matsuno ,  Masahiro Fujii ,  Akira Sano

IPC分类号： B41J2/14

CPC分类号： B41J2/14314 ,  B41J2002/14411 ,  B41J2002/14491

摘要： A droplet jet head includes a nozzle substrate having a plurality of nozzle holes; a cavity substrate having recesses whose bottoms serve as diaphragms, and the recesses serving as ejection chambers; an electrode substrate having separate electrodes opposed to the diaphragms; a reservoir substrate having a recess serving as a common droplet chamber for supplying droplets to the ejection chambers, through holes for transferring the droplets from the common droplet chamber to the ejection chambers, and nozzle communicating holes for transferring the droplets from the ejection chambers to the nozzle holes; and a driver IC that supplies a driving signal to the separate electrodes. The cavity substrate has a first hole, and the reservoir substrate has a second hole. The first hole and the second hole communicate with each other to form a housing. The driver IC is housed in the housing.

摘要翻译： 液滴喷头包括具有多个喷嘴孔的喷嘴基板; 具有凹部的空腔基板，其底部用作隔膜，所述凹部用作喷射室; 具有与隔膜相对的分离电极的电极基板; 储存器基板，其具有用作向喷射室供应液滴的共同液滴室的凹槽，通过用于将液滴从共同液滴室传送到喷射室的孔，以及用于将液滴从喷射室传送到喷嘴的喷嘴连通孔 喷嘴孔; 以及向单独的电极提供驱动信号的驱动器IC。 空腔基板具有第一孔，并且储存器基板具有第二孔。 第一孔和第二孔彼此连通以形成壳体。 驱动器IC安装在外壳中。

公开(公告)号：US20060181594A1

公开(公告)日：2006-08-17

申请号：US11355393

申请日：2006-02-16

申请人： Masahiro Fujii ,  Yasushi Matsuno ,  Akira Sano

发明人： Masahiro Fujii ,  Yasushi Matsuno ,  Akira Sano

IPC分类号： B41J2/41

CPC分类号： B41J2/1629 ,  B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1646 ,  B41J2002/14411

摘要： An electrostatic actuator includes: a diaphragm constituting one electrode; and an electrode substrate on which an opposed electrode opposite to the diaphragm has been formed with a gap, in which the opposed electrode is formed in a grooved portion, having a rectangular shape in plan view, formed on the electrode substrate and is formed in a plurality of steps such that the gap gradually increases stepwise toward a center part in a long edge direction of the grooved portion.

摘要翻译： 静电致动器包括：构成一个电极的隔膜; 并且在电极基板上形成有与隔膜相对的相对电极的电极基板，其间形成有在电极基板上形成有在平面图中的矩形形状的沟槽部分中的相对电极， 多个台阶使得间隙在带槽部分的长边方向上逐渐向中心部分逐渐增加。

公开(公告)号：US06168263A

公开(公告)日：2001-01-02

申请号：US09181223

申请日：1998-10-27

申请人： Shigeo Nojima ,  Masahiro Fujii ,  Taro Takekoshi ,  Hiroyuki Ishikawa

发明人： Shigeo Nojima ,  Masahiro Fujii ,  Taro Takekoshi ,  Hiroyuki Ishikawa

IPC分类号： B41J204

CPC分类号： B41J2/16 ,  B41J2/14314 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/14338 ,  B41J2002/14379 ,  B41J2002/14387 ,  B41J2202/03 ,  B41J2202/11

摘要： An ink jet recording apparatus that achieves sufficient attraction force even when the actuator is sealed. In the ink jet recording apparatus, an electric pulse is applied between a diaphragm and electrode by a drive circuit to deform a diaphragm by electrostatic force to eject an ink droplet from a nozzle comprises a vibration chamber containing a wall surface formed by the diaphragm and a wall surface on which the electrode is formed, and a first cavity communicating with the vibration chamber and containing a wall surface on which is provided a lead for connecting the drive circuit and electrode. The vibration chamber is sealed airtight, and comprises a second cavity communicating with the vibration chamber or first cavity for increasing the volume of the airtight sealed part of the actuator.

摘要翻译： 即使在致动器被密封时也能够获得足够的吸引力的喷墨记录装置。 在喷墨记录装置中，通过驱动电路在振膜和电极之间施加电脉冲，以通过静电力使隔膜变形，从喷嘴喷射墨滴，包括振动室，该振动室包含由隔膜形成的壁面和 形成有电极的壁面，以及与振动室连通并且包含壁面的第一腔，在其上设置有用于连接驱动电路和电极的引线。 振动室被密封密封，并且包括与振动室或第一腔连通的第二腔，用于增加致动器的气密密封部分的体积。