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1. 发明授权

US09655642B2 Fluid ejection device 有权
公开(公告)号：US09655642B2
公开(公告)日：2017-05-23
申请号：US15146847
申请日：2016-05-04
申请人： SEIKO EPSON CORPORATION
发明人： Masaki Gomi , Kazuaki Uchida
IPC分类号： B41J29/38 , B41J2/175 , A61B17/3203 , A61B17/00
CPC分类号： A61B17/3203 , A61B2017/00022 , A61B2017/00132 , B41J2/175 , B41J2/17556 , B41J2/17596 , B41J29/38
摘要： A fluid ejection device includes a fluid container having a fluid accommodation portion that has formed therein a fluid outlet and accommodates a fluid. A fluid pressing unit presses the fluid accommodation portion to cause the fluid to flow out of the fluid outlet. Connection piping has an end that is connected to the fluid outlet. A fluid ejection unit has a fluid intake port connected to the other end of the connection piping, and ejects in a pulsed manner the fluid received from the fluid intake port. A pressure detection unit detects pressure of the fluid accommodation portion when the fluid pressing unit presses the fluid accommodation portion, and outputs a level of a detection signal corresponding to the pressure. A press control unit stops the fluid pressing unit from pressing the fluid accommodation portion when the pressure indicated by the detection signal is a predetermined value or higher.

2. 发明授权

US09402946B2 Liquid ejecting apparatus 有权
标题翻译：液体喷射装置
公开(公告)号：US09402946B2
公开(公告)日：2016-08-02
申请号：US14550418
申请日：2014-11-21
申请人： SEIKO EPSON CORPORATION
发明人： Takeshi Seto , Hirokazu Sekino , Kazuaki Uchida , Kazuo Kawasumi
IPC分类号： B05B1/08 , A61M3/02 , A61B17/3203 , F04B43/02
CPC分类号： A61B17/3203 , A61M3/02 , A61M3/0233 , F04B43/02 , F04B43/08 , F04B53/16
摘要： A liquid ejecting apparatus includes: an inflow channel to which liquid is supplied; an outflow channel communicated with a nozzle; a liquid chamber formed with a spiral flow channel having a substantially constant cross-sectional area between the inflow channel and the outflow channel and having a given volume; a volume changing portion configured to deform the liquid chamber so as to change the volume of the liquid chamber to a volume smaller than the given volume; and an ejection control unit configured to cause the liquid to be ejected from the nozzle in a pulsed manner by driving the volume changing portion in a state in which the liquid chamber is filled with the liquid.
摘要翻译：液体喷射装置包括：供给液体的流入通道; 与喷嘴连通的流出通道; 液体室形成有螺旋流动通道，在流入通道和流出通道之间具有基本恒定的横截面积并具有给定的体积; 体积变化部，其构造为使所述液体室变形，以将所述液体室的体积变化为比所述给定体积小的体积; 以及喷射控制单元，被配置为通过在液体室充满液体的状态下驱动体积变化部分而以脉冲方式从喷嘴喷射液体。

3. 发明授权

US09168056B2 Liquid ejection device and medical instrument including liquid ejection device 有权
标题翻译：液体喷射装置和包括液体喷射装置在内的医疗器械
公开(公告)号：US09168056B2
公开(公告)日：2015-10-27
申请号：US13750813
申请日：2013-01-25
申请人： SEIKO EPSON CORPORATION
发明人： Kazuaki Uchida , Hideki Kojima , Atsuya Hirabayashi
IPC分类号： A61B17/3203 , A61M5/168 , A61M5/30 , F04B43/04 , A61B17/00
CPC分类号： A61B17/3203 , A61B2017/00185 , A61B2017/0019 , A61M5/168 , A61M5/30 , F04B43/04
摘要： Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.
摘要翻译：流体被加压并且被供应到具有流体加压和供应单元的流体室。流体室内的加压流体通过减小通过向体积变化单元施加驱动电压而导致的流体室的体积而通过注射喷嘴喷射。在将驱动电压施加到体积变化单元时，通过改变驱动电压的电压波形来补偿通过加压和供应到流体室的流体的压力波动对流体注入的影响。当供给流量的压力降低到低于预定压力的压力时，校正驱动波形的时间间隔。即使加压并供应到流体室的流体的压力波动，流体注入装置的机动性也不会劣化。

4. 发明授权

US11618265B2 Liquid ejecting head and liquid ejecting apparatus 有权
公开(公告)号：US11618265B2
公开(公告)日：2023-04-04
申请号：US17222685
申请日：2021-04-05
申请人： SEIKO EPSON CORPORATION
发明人： Kazuaki Uchida , Yuma Fukuzawa
IPC分类号： B41J2/18 , B41J2/14
摘要： A liquid ejecting head including a plurality of nozzles, a row of individual flow paths that includes a plurality of individual flow paths arranged in parallel along a second axis orthogonal to the first axis when viewed in a direction of the first axis, and a common liquid chamber that is commonly in communication with the plurality of individual flow paths. In the liquid ejecting head, the plurality of individual flow paths include a first individual flow path and a second individual flow path that are adjacent to each other in the row of individual flow paths, and the level of a first opening that is a connection port between the common liquid chamber and the first individual flow path and the level of a second opening that is a connection port between the common liquid chamber and the second individual flow path are different.

5. 发明授权

US11225072B2 Liquid ejecting head and liquid ejecting system 有权
公开(公告)号：US11225072B2
公开(公告)日：2022-01-18
申请号：US17108381
申请日：2020-12-01
申请人： SEIKO EPSON CORPORATION
发明人： Yuma Fukuzawa , Shotaro Tamai , Yoichi Naganuma , Akira Miyagishi , Kazuaki Uchida
IPC分类号： B41J2/14 , B41J2/18
摘要： A liquid ejecting head including: an individual flow path row in which a plurality of individual flow paths communicating with a nozzle that ejects a liquid in a first axis direction are arranged in parallel along a second axis orthogonal to a first axis, and a first common liquid chamber communicating with the plurality of individual flow paths, in which each of the plurality of individual flow paths has a pressure chamber that stores a liquid.

6. 发明授权

US10730296B2 Liquid ejecting head and liquid ejecting apparatus 有权
公开(公告)号：US10730296B2
公开(公告)日：2020-08-04
申请号：US16365355
申请日：2019-03-26
申请人： SEIKO EPSON CORPORATION
发明人： Kazuaki Uchida , Shunya Fukuda
IPC分类号： B41J2/14
摘要： A liquid ejecting head includes nozzles that eject a liquid, communication paths in which the respective nozzles are disposed and which are arrayed and partitioned from adjacent ones of communication paths by partition walls, pressure chambers which communicate with the respective communication paths and which are arrayed and partitioned from adjacent ones of pressure chambers by partition walls, pressure generating portions that are provided in the respective pressure chambers and that vary a pressure of the pressure chambers to cause the liquid to be ejected from the nozzles, and common flow paths through which at least one of supplying and discharging the liquid is performed to and from flow paths including the communication paths and the pressure chambers. A compliance of the partition walls of the communication paths is made larger than a compliance of the partition walls of the pressure chambers.

7. 发明授权

US09743948B2 Liquid ejecting apparatus 有权
公开(公告)号：US09743948B2
公开(公告)日：2017-08-29
申请号：US15188688
申请日：2016-06-21
申请人： SEIKO EPSON CORPORATION
发明人： Takeshi Seto , Hirokazu Sekino , Kazuaki Uchida , Kazuo Kawasumi
IPC分类号： F04B43/02 , A61B17/3203 , A61M3/02 , F04B43/08 , F04B53/16
CPC分类号： A61B17/3203 , A61M3/02 , A61M3/0233 , F04B43/02 , F04B43/08 , F04B53/16
摘要： A liquid ejecting apparatus includes: an inflow channel to which liquid is supplied; an outflow channel communicated with a nozzle; a liquid chamber formed with a spiral flow channel having a substantially constant cross-sectional area between the inflow channel and the outflow channel and having a given volume; a volume changing portion configured to deform the liquid chamber so as to change the volume of the liquid chamber to a volume smaller than the given volume; and an ejection control unit configured to cause the liquid to be ejected from the nozzle in a pulsed manner by driving the volume changing portion in a state in which the liquid chamber is filled with the liquid.

8. 发明授权

US09603617B2 Medical apparatus 有权
公开(公告)号：US09603617B2
公开(公告)日：2017-03-28
申请号：US13895129
申请日：2013-05-15
申请人： Seiko Epson Corporation
发明人： Takeshi Seto , Kazuaki Uchida , Hideki Kojima , Hirokazu Sekino
IPC分类号： A61B17/3203 , A61B17/00
CPC分类号： A61B17/3203 , A61B17/32037 , A61B2017/00075 , A61B2017/00154 , A61B2017/00194 , A61B2017/32032
摘要： Liquid is ejected in a pulse-like manner from a nozzle provided at the distal end of a liquid ejection pipe. When the liquid is ejected, moving speed of the nozzle is detected. A driving frequency of a piezoelectric element is increased when the moving speed increase. The driving frequency is reduced when the moving speed decreases. Consequently, it is possible to prevent the number of times the liquid is ejected per unit length from changing according to the moving speed of the nozzle. Therefore, it is possible to excise a biological tissue at stable excision depth.

9. 发明授权

US09566085B2 Fluid ejection device 有权
标题翻译：流体喷射装置
公开(公告)号：US09566085B2
公开(公告)日：2017-02-14
申请号：US14683030
申请日：2015-04-09
申请人： SEIKO EPSON CORPORATION
发明人： Tsunemori Asahi , Masaki Gomi , Kazuaki Uchida
IPC分类号： A61B17/3203 , A61M3/02 , A61M39/22 , A61M39/08 , A61M5/145 , A61M5/168 , A61M5/142 , A61B17/00
CPC分类号： A61B17/3203 , A61B2017/00017 , A61B2017/00022 , A61B2217/007 , A61M3/02 , A61M5/14224 , A61M5/1452 , A61M5/1458 , A61M5/14586 , A61M5/1684 , A61M39/08 , A61M39/22 , A61M2205/0294 , A61M2205/14 , A61M2205/332 , A61M2205/3334 , A61M2205/3382 , A61M2205/3386 , A61M2205/3389 , A61M2206/10 , A61M2206/20
摘要： A fluid ejection device includes: a fluid ejection unit that ejects a fluid in a pulsed manner; a fluid accommodation portion that accommodates the fluid at a predetermined pressure or higher; a fluid supply unit that supplies the fluid accommodated in the fluid accommodation portion to the fluid ejection unit; a connection channel that connects the fluid ejection unit and the fluid accommodation portion, and acts as a channel through which the fluid flows; an opening and closing unit that opens and closes the connection channel; and a control unit that sends an open signal for opening the connection channel to the opening and closing unit, and sends an ejection signal for ejecting the fluid to the fluid ejection unit. The control unit sends the ejection signal after a predetermined amount of time has elapsed from the sending of the open signal.
摘要翻译：流体喷射装置包括：以脉冲方式喷射流体的流体喷射单元; 流体容纳部分，其以预定压力或更高的压力容纳流体; 流体供应单元，其将容纳在流体容纳部分中的流体供应到流体喷射单元; 连接通道，其连接流体喷射单元和流体容纳部分，并且作为流体流过的通道; 打开和关闭连接通道的打开和关闭单元; 以及控制单元，其向打开和关闭单元发送用于打开连接通道的打开信号，并且将用于将流体喷射到喷射单元的喷射信号发送。控制单元在从打开信号的发送经过预定的时间之后发送排出信号。

10. 发明授权

US11548280B2 Liquid ejecting head and liquid ejecting system 有权
公开(公告)号：US11548280B2
公开(公告)日：2023-01-10
申请号：US17108702
申请日：2020-12-01
申请人： SEIKO EPSON CORPORATION
发明人： Yuma Fukuzawa , Shotaro Tamai , Yoichi Naganuma , Akira Miyagishi , Kazuaki Uchida
IPC分类号： B41J2/14
摘要： A liquid ejecting head including: an individual flow path row in which a plurality of individual flow paths communicating with a nozzle that ejects a liquid in a first axis direction are arranged in parallel along a second axis orthogonal to a first axis, and a first common liquid chamber communicating with the plurality of individual flow paths, in which each of the plurality of individual flow paths has a pressure chamber that stores a liquid.

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