公开(公告)号：US20070211090A1

公开(公告)日：2007-09-13

申请号：US11683996

申请日：2007-03-08

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J29/38

CPC classification number: B41J2/04588 ,  B41J2/04551 ,  B41J2/04581 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306

Abstract: An actuator can selectively take a first state wherein a volume of a pressure chamber is V1 and a second state wherein the volume of the pressure chamber is V2 larger than V1. The actuator changes from the first state to the second state and then returns to the first state to eject ink from an ejection port. A proper oscillation period Ts of an oscillation generated by integral deformation of the actuator and the pressure chamber when ink is ejected from the ejection port, and a proper oscillation period Td of ink filling up a first partial passage leading from an outlet of the pressure chamber to the ejection port in an individual ink passage, satisfy a condition that Ts/Td is not less than 0.36 and not more than 0.90; or not less then 1.1 and not more than 1.7.

Abstract translation: 致动器可以选择性地采取其中压力室的体积为V1的第一状态和压力室的体积V2大于V1的第二状态。 致动器从第一状态改变到第二状态，然后返回到第一状态以从喷射口喷出墨。 当从喷射口喷射墨时，致动器和压力室的整体变形产生的振荡的适当的振荡周期Ts以及填充从压力室的出口引出的第一部分通道的适当的振荡周期Td 在单个墨水通道中的喷射口满足Ts / Td不小于0.36且不大于0.90的条件; 或不低于1.1且不大于1.7。

公开(公告)号：US07600861B2

公开(公告)日：2009-10-13

申请号：US11683996

申请日：2007-03-08

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J2/045 ,  B41J29/38

CPC classification number: B41J2/04588 ,  B41J2/04551 ,  B41J2/04581 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306

Abstract: An actuator can selectively take a first state wherein a volume of a pressure chamber is V1 and a second state wherein the volume of the pressure chamber is V2 larger than V1. The actuator changes from the first state to the second state and then returns to the first state to eject ink from an ejection port. A proper oscillation period Ts of an oscillation generated by integral deformation of the actuator and the pressure chamber when ink is ejected from the ejection port, and a proper oscillation period Td of ink filling up a first partial passage leading from an outlet of the pressure chamber to the ejection port in an individual ink passage, satisfy a condition that Ts/Td is not less than 0.36 and not more than 0.90; or not less than 1.1 and not more than 1.7.

Abstract translation: 致动器可以选择性地采取其中压力室的体积为V1的第一状态和压力室的体积V2大于V1的第二状态。 致动器从第一状态改变到第二状态，然后返回到第一状态以从喷射口喷出墨。 当从喷射口喷射墨时，致动器和压力室的整体变形产生的振荡的适当的振荡周期Ts以及填充从压力室的出口引出的第一部分通道的适当的振荡周期Td 在单个墨水通道中的喷射口满足Ts / Td不小于0.36且不大于0.90的条件; 或不小于1.1且不大于1.7。

公开(公告)号：US20070229561A1

公开(公告)日：2007-10-04

申请号：US11693709

申请日：2007-03-29

Applicant: Naoto Iwao ,  Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Naoto Iwao ,  Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J29/38

CPC classification number: B41J2/14209 ,  B41J2/04506 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/11 ,  B41J2202/20

Abstract: An actuator can selectively switch a volume of a pressure chamber between a first state V1 and a second state V2, which is greater than V1. The actuator changes from the first state into the second state and then changes back into the first state to eject ink from an ejection port. A controller controls the actuator such that To/Tc falls within a range from 0.51 to 0.54. To represents the time period between time the actuator starts to change from the first state into the second state, to a time the actuator starts to change from the second state into the first state. Tc represents the period of proper oscillation of ink filling up the individual ink passage. The actuator is controlled so that a variation in ink ejection speed is prevented from being too large relative to the variation in the degree of deformation of the actuator.

Abstract translation: 致动器可以选择性地将压力室的体积在大于V 1的第一状态V 1和第二状态V 2之间切换。 致动器从第一状态变为第二状态，然后变回第一状态以从喷射口喷出墨。 控制器控制致动器，使得To / Tc落在从0.51到0.54的范围内。 表示执行器开始从第一状态变为第二状态的时间到执行器开始从第二状态变为第一状态的时间段。 Tc表示填充单个油墨通道的油墨的适当振荡的周期。 控制致动器，从而防止喷墨速度的变化相对于致动器的变形程度的变化太大。

公开(公告)号：US07611229B2

公开(公告)日：2009-11-03

申请号：US11693977

申请日：2007-03-30

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/11 ,  B41J2202/20

Abstract: An inkjet head includes a passage unit and an actuator unit. The passage unit includes a common ink chamber and an individual ink passage leading from an outlet of the common ink chamber through a pressure chamber to an ejection port. The actuator unit can selectively take a first state in which the volume of the pressure chamber is V1 and a second state in which the volume of the pressure chamber is V2 larger than V1. The actuator unit changes from the first state into the second state and then returns to the first state to eject ink from the ejection port. The individual ink passage is formed such that the volume Vd of a partial passage in the individual ink passage corresponding to a region from an outlet of the pressure chamber to the ejection port, and the volume Vc of the individual ink passage, satisfy a condition that Vd/Vc is not less than 0.12 and not more than 0.40.

Abstract translation: 喷墨头包括通道单元和致动器单元。 通道单元包括公共墨水室和从公共墨水室的出口通过压力室引导到喷射口的单独墨水通道。 致动器单元可以选择性地采取其中压力室的体积为V1的第一状态和压力室的体积V2大于V1的第二状态。 致动器单元从第一状态变为第二状态，然后返回到第一状态以从喷射口喷出墨。 单独的油墨通道形成为使得对应于从压力室的出口到排出口的区域的单个油墨通道中的部分通道的体积Vd和单个油墨通道的体积Vc满足以下条件： Vd / Vc不小于0.12且不大于0.40。

公开(公告)号：US20070211114A1

公开(公告)日：2007-09-13

申请号：US11693977

申请日：2007-03-30

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J2/05

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/11 ,  B41J2202/20

Abstract: An inkjet head includes a passage unit and an actuator unit. The passage unit includes a common ink chamber and an individual ink passage leading from an outlet of the common ink chamber through a pressure chamber to an ejection port. The actuator unit can selectively take a first state in which the volume of the pressure chamber is V1 and a second state in which the volume of the pressure chamber is V2 larger than V1. The actuator unit changes from the first state into the second state and then returns to the first state to eject ink from the ejection port. The individual ink passage is formed such that the volume Vd of a partial passage in the individual ink passage corresponding to a region from an outlet of the pressure chamber to the ejection port, and the volume Vc of the individual ink passage, satisfy a condition that Vd/Vc is not less than 0.12 and not more than 0.40.

Abstract translation: 喷墨头包括通道单元和致动器单元。 通道单元包括公共墨水室和从公共墨水室的出口通过压力室引导到喷射口的单独墨水通道。 致动器单元可以选择性地采取其中压力室的容积为V 1的第一状态和压力室的容积为V 2的第二状态大于V 1。致动器单元从第一状态变为 然后返回到第一状态以从喷射口喷射墨水。 单独的油墨通道形成为使得对应于从压力室的出口到排出口的区域的单个油墨通道中的部分通道的体积Vd和单个油墨通道的体积Vc满足以下条件： Vd / Vc不小于0.12且不大于0.40。

公开(公告)号：US20070081050A1

公开(公告)日：2007-04-12

申请号：US11538832

申请日：2006-10-05

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459

Abstract: A controller controls a pressurizing actuator in such a manner that a pressure chamber changes from a first state where a volume of the pressure chamber is V1 to a second state where the volume is V2 larger than V1 and then returns from the second to the first state to cause ink to be ejected from an ejection opening, that a time length Tv1 from a time point at which the pressure chamber starts to change from the first to the second state to a time point at which the pressure chamber is in the second state becomes 33% or more of a characteristic vibration period Td of ink filled in a first ink passage extending from an outlet of the pressure chamber to the ejection opening, and that the time length Tv1 becomes 83% or less of the characteristic vibration period Td.

Abstract translation: 控制器以这样的方式控制加压致动器，使得压力室从压力室的容积为V 1的第一状态变为体积为V 2的V 2的第二状态，然后从第二状态返回到 从喷射口喷射墨的第一状态，从压力室开始从第一状态到第二状态的时间点到时间点的时间长度Tv <1> 压力室处于第二状态的压力室的压力变成33％以上，该特征振动周期Td是从压力室的出口向排出口延伸的第一油墨通路的墨水的特征振动周期Td，并且时间长度Tv _{1 变为特征振动周期Td的83％以下。}

公开(公告)号：US07661783B2

公开(公告)日：2010-02-16

申请号：US11538832

申请日：2006-10-05

Applicant: Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J29/38

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459

Abstract: A controller controls a pressurizing actuator in such a manner that a pressure chamber changes from a first state where a volume of the pressure chamber is V1 to a second state where the volume is V2 larger than V1 and then returns from the second to the first state to cause ink to be ejected from an ejection opening, that a time length Tv1 from a time point at which the pressure chamber starts to change from the first to the second state to a time point at which the pressure chamber is in the second state becomes 33% or more of a characteristic vibration period Td of ink filled in a first ink passage extending from an outlet of the pressure chamber to the ejection opening, and that the time length Tv1 becomes 83% or less of the characteristic vibration period Td.

Abstract translation: 控制器以这样的方式控制加压致动器，使得压力室从压力室的容积为V1的第一状态变化到体积为V2的V1大于V1的第二状态，然后从第二状态返回到第一状态 为了从喷射口喷出墨水，从压力室开始从第一状态到第二状态的时间点到压力室处于第二状态的时间点的时间长度Tv1变为压力室处于第二状态的时刻 填充在从压力室的出口延伸到喷射口的第一油墨通道中的油墨的特征振动周期Td的33％以上，并且时间长度Tv1变为特征振动周期Td的83％以下。

公开(公告)号：US07658458B2

公开(公告)日：2010-02-09

申请号：US11693709

申请日：2007-03-29

Applicant: Naoto Iwao ,  Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

Inventor： Naoto Iwao ,  Manabu Hibi ,  Kenichi Satake ,  Shin Ishikura

IPC: B41J29/38

CPC classification number: B41J2/14209 ,  B41J2/04506 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/11 ,  B41J2202/20

Abstract: An actuator can selectively switch a volume of a pressure chamber between a first state V1 and a second state V2, which is greater than V1. The actuator changes from the first state into the second state and then changes back into the first state to eject ink from an ejection port. A controller controls the actuator such that To/Tc falls within a range from 0.51 to 0.54. To represents the time period between time the actuator starts to change from the first state into the second state, to a time the actuator starts to change from the second state into the first state. Tc represents the period of proper oscillation of ink filling up the individual ink passage. The actuator is controlled so that a variation in ink ejection speed is prevented from being too large relative to the variation in the degree of deformation of the actuator.

Abstract translation: 致动器可以选择性地切换第一状态V1和大于V1的第二状态V2之间的压力室的体积。 致动器从第一状态变为第二状态，然后变回第一状态以从喷射口喷出墨。 控制器控制致动器，使得To / Tc落在从0.51到0.54的范围内。 表示执行器开始从第一状态变为第二状态的时间到执行器开始从第二状态变为第一状态的时间段。 Tc表示填充单个油墨通道的油墨的适当振荡的周期。 致动器被控制，使得防止墨喷射速度的变化相对于致动器的变形程度的变化太大。

公开(公告)号：US08087760B2

公开(公告)日：2012-01-03

申请号：US11855025

申请日：2007-09-13

Applicant: Manabu Hibi ,  Naoto Iwao ,  Shin Ishikura

Inventor： Manabu Hibi ,  Naoto Iwao ,  Shin Ishikura

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/20

Abstract: A liquid ejection head includes a passage unit and an actuator. A nozzle for ejecting liquid and a common liquid chamber are formed in the passage unit. An individual liquid passage formed in the passage unit includes a first passage a pressure chamber, a second passage, and a restricted passage. The first passage communicates between the nozzle and the pressure chamber. The second passage communicates between the pressure chamber and the restricted passage. The restricted passage is smaller than the second passage in the sectional area perpendicular to the flow of the liquid. The actuator can selectively take a first state in which the volume of the pressure chamber is V1 and a second state in which the volume of the pressure chamber is V2 larger than V1. The actuator changes from the first state into the second state and then returns to the first state to eject the liquid from the nozzle. The individual liquid passage is designed so that Tc1 and Tc2 defined by predetermined expressions showing characteristics of the individual liquid passage satisfy a condition that Tc1/Tc2 is substantially not less than 4.7 and not more than 5.5.

Abstract translation: 液体喷射头包括通道单元和致动器。 在通道单元中形成用于喷射液体的喷嘴和公共液体室。 形成在通道单元中的单个液体通道包括第一通道，压力室，第二通道和限制通道。 第一通道在喷嘴和压力室之间连通。 第二通道在压力室和限制通道之间连通。 限制通道比垂直于液体流动截面的第二通道小。 致动器可以选择性地采取其中压力室的体积为V1的第一状态和压力室的体积V2大于V1的第二状态。 致动器从第一状态变为第二状态，然后返回到第一状态以从喷嘴喷出液体。 单独的液体通道被设计成使得通过显示各个液体通道的特性的预定表达式限定的Tc1和Tc2满足Tc1 / Tc2基本上不小于4.7且不大于5.5的条件。

公开(公告)号：US20080084457A1

公开(公告)日：2008-04-10

申请号：US11855025

申请日：2007-09-13

Applicant: Manabu Hibi ,  Naoto Iwao ,  Shin Ishikura

Inventor： Manabu Hibi ,  Naoto Iwao ,  Shin Ishikura

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14459 ,  B41J2202/20

Abstract: A liquid ejection head includes a passage unit and an actuator. A nozzle for ejecting liquid and a common liquid chamber are formed in the passage unit. An individual liquid passage formed in the passage unit includes a first passage a pressure chamber, a second passage, and a restricted passage. The first passage communicates between the nozzle and the pressure chamber. The second passage communicates between the pressure chamber and the restricted passage. The restricted passage is smaller than the second passage in the sectional area perpendicular to the flow of the liquid. The actuator can selectively take a first state in which the volume of the pressure chamber is V1 and a second state in which the volume of the pressure chamber is V2 larger than V1. The actuator changes from the first state into the second state and then returns to the first state to eject the liquid from the nozzle. The individual liquid passage is designed so that Tc1 and Tc2 defined by predetermined expressions showing characteristics of the individual liquid passage satisfy a condition that Tc1/Tc2 is substantially not less than 4.7 and not more than 5.5.

Abstract translation: 液体喷射头包括通道单元和致动器。 在通道单元中形成用于喷射液体的喷嘴和公共液体室。 形成在通道单元中的单个液体通道包括第一通道，压力室，第二通道和限制通道。 第一通道在喷嘴和压力室之间连通。 第二通道在压力室和限制通道之间连通。 限制通道比垂直于液体流动截面的第二通道小。 致动器可以选择性地采取其中压力室的体积为V 1的第一状态和压力室的容积为V 2的第二状态大于V 1。 致动器从第一状态变为第二状态，然后返回到第一状态以从喷嘴喷出液体。 单独的液体通道被设计成使得通过显示各个液体通道的特性的预定表达式限定的Tc 1和Tc 2满足Tc 1 / Tc 2基本上不小于4.7且不大于5.5的条件。