公开(公告)号：US20240131842A1

公开(公告)日：2024-04-25

申请号：US18381655

申请日：2023-10-18

申请人： Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14

CPC分类号： B41J2/14233

摘要： A liquid discharge head includes: multiple nozzles; multiple individual chambers respectively communicating with the multiple nozzles; a common chamber communicating with each of the multiple individual chambers; multiple fluid restrictors between each of the multiple individual chambers and the common chamber; and multiple actuators driven to cause a liquid in the multiple individual chambers to be discharged from the multiple nozzles, a meniscus formed at each of the multiple nozzles has a natural period of vibration different from each of: a resonant period of the common chamber; half of the resonant period of the common chamber; and a quarter of the resonant period of the common chamber.

公开(公告)号：US20190224974A1

公开(公告)日：2019-07-25

申请号：US16157238

申请日：2018-10-11

申请人： Takakazu KIHIRA ,  Tomoaki Murakami ,  Masami Iwama ,  Kouichi Nakano

发明人： Takakazu KIHIRA ,  Tomoaki Murakami ,  Masami Iwama ,  Kouichi Nakano

IPC分类号： B41J2/14

摘要： A liquid discharge head includes a nozzle plate in which a plurality of nozzles to discharge a liquid is formed in a nozzle array direction, a channel plate including partition walls to form a plurality of individual chambers communicating with the plurality of nozzles, respectively, a diaphragm bonded to the channel plate to form a wall of the plurality of individual chambers, and a plurality of electromechanical transducers bonded to the diaphragm to deform the diaphragm to generate a pressure in the plurality of individual chambers, and a cycle of vibration of natural vibration generated in the liquid in the plurality of individual chambers is equal to or larger than a cycle of a primary mode of lateral vibration of the plurality of electromechanical transducers in the nozzle array direction.

公开(公告)号：US20180272709A1

公开(公告)日：2018-09-27

申请号：US15894996

申请日：2018-02-13

申请人： Junichi IWATA ,  Takahiro YOSHIDA ,  Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Junichi IWATA ,  Takahiro YOSHIDA ,  Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14 ,  B41J2/045 ,  B41J2/15

摘要： A liquid discharge head includes a nozzle to discharge a liquid, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber to supply the liquid to the individual chamber, and a discharge channel communicating with the individual chamber to discharge the liquid in the individual chamber. A fluid resistance of the supply channel is greater than a fluid resistance of the discharge channel.

公开(公告)号：US10076918B2

公开(公告)日：2018-09-18

申请号：US15439327

申请日：2017-02-22

申请人： Tomoaki Murakami ,  Takahiro Yoshida ,  Masami Iwama ,  Takakazu Kihira

发明人： Tomoaki Murakami ,  Takahiro Yoshida ,  Masami Iwama ,  Takakazu Kihira

IPC分类号： B41J29/377

CPC分类号： B41J29/377 ,  B41J2/14024 ,  B41J2/1408 ,  B41J2/14201 ,  B41J2/14314 ,  B41J2002/14362 ,  B41J2202/08

摘要： A liquid-discharging head includes a pressure-generating element configured to be actuated to apply pressure on liquid in a pressure chamber from which the liquid is discharged through a nozzle, an actuation controller configured to control actuation of the pressure-generating element, a heat-releasing member configured to contact the actuation controller, and a cover member configured to cover the actuation controller and part of the heat-releasing member. The heat-releasing member includes a first heat-releasing member and a second heat-releasing member. The first heat-releasing member is arranged outside the cover member and has a surface exposed to external air. The second heat-releasing member is arranged inside the cover member and has a first end portion to contact the actuation controller. The first heat-releasing member and the second heat-releasing member are arranged to contact each other.

公开(公告)号：US20170253062A1

公开(公告)日：2017-09-07

申请号：US15439327

申请日：2017-02-22

申请人： Tomoaki MURAKAMI ,  Takahiro YOSHIDA ,  Masami IWAMA ,  Takakazu KIHIRA

发明人： Tomoaki MURAKAMI ,  Takahiro YOSHIDA ,  Masami IWAMA ,  Takakazu KIHIRA

IPC分类号： B41J29/377

CPC分类号： B41J29/377 ,  B41J2/14024 ,  B41J2/1408 ,  B41J2/14201 ,  B41J2/14314 ,  B41J2002/14362 ,  B41J2202/08

摘要： A liquid-discharging head includes a pressure-generating element configured to be actuated to apply pressure on liquid in a pressure chamber from which the liquid is discharged through a nozzle, an actuation controller configured to control actuation of the pressure-generating element, a heat-releasing member configured to contact the actuation controller, and a cover member configured to cover the actuation controller and part of the heat-releasing member. The heat-releasing member includes a first heat-releasing member and a second heat-releasing member. The first heat-releasing member is arranged outside the cover member and has a surface exposed to external air. The second heat-releasing member is arranged inside the cover member and has a first end portion to contact the actuation controller. The first heat-releasing member and the second heat-releasing member are arranged to contact each other.

公开(公告)号：US10759165B2

公开(公告)日：2020-09-01

申请号：US15894996

申请日：2018-02-13

申请人： Junichi Iwata ,  Takahiro Yoshida ,  Yukio Otome ,  Tomoaki Murakami

发明人： Junichi Iwata ,  Takahiro Yoshida ,  Yukio Otome ,  Tomoaki Murakami

IPC分类号： B41J2/14 ,  B41J2/045 ,  B41J2/15 ,  H01L41/338 ,  B41J2/16 ,  H01L41/09 ,  H01L41/312

摘要： A liquid discharge head includes a nozzle to discharge a liquid, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber to supply the liquid to the individual chamber, and a discharge channel communicating with the individual chamber to discharge the liquid in the individual chamber. A fluid resistance of the supply channel is greater than a fluid resistance of the discharge channel.

公开(公告)号：US10576742B2

公开(公告)日：2020-03-03

申请号：US16157238

申请日：2018-10-11

申请人： Takakazu Kihira ,  Tomoaki Murakami ,  Masami Iwama ,  Kouichi Nakano

发明人： Takakazu Kihira ,  Tomoaki Murakami ,  Masami Iwama ,  Kouichi Nakano

IPC分类号： B41J2/14

摘要： A liquid discharge head includes a nozzle plate in which a plurality of nozzles to discharge a liquid is formed in a nozzle array direction, a channel plate including partition walls to form a plurality of individual chambers communicating with the plurality of nozzles, respectively, a diaphragm bonded to the channel plate to form a wall of the plurality of individual chambers, and a plurality of electromechanical transducers bonded to the diaphragm to deform the diaphragm to generate a pressure in the plurality of individual chambers, and a cycle of vibration of natural vibration generated in the liquid in the plurality of individual chambers is equal to or larger than a cycle of a primary mode of lateral vibration of the plurality of electromechanical transducers in the nozzle array direction.

公开(公告)号：US06821421B2

公开(公告)日：2004-11-23

申请号：US10196316

申请日：2002-07-16

申请人： Tomoaki Murakami

发明人： Tomoaki Murakami

IPC分类号： B01D6128

CPC分类号： A61M1/16 ,  A61M1/1601 ,  A61M1/1645 ,  A61M1/165 ,  A61M1/3663 ,  A61M2205/3334 ,  A61M2205/50

摘要： A hemodialyzing unit includes a dialytic fluid supply line for feeding a dialytic fluid from a dialytic fluid supply/discharge unit to a dialyzer, a dialytic fluid discharge line for feeding a dialytic fluid discharged from the dialyzer to the dialytic fluid supply/discharge unit, and a bypass line for connecting both lines at an intermediate portion of each. A flow rate adjusting member is provided to a downstream supply line between a coupling portion for coupling the dialytic fluid supply line to the bypass line and the dialyzer. A wider range of treatments such as CHD (or CHDF), SHD (or SHDF), and HD (or HDF) can be conducted without employing a device for the exclusive use of the CHD or CHDF.

公开(公告)号：US20240227396A9

公开(公告)日：2024-07-11

申请号：US18381655

申请日：2023-10-19

申请人： Yukio OTOME ,  Tomoaki MURAKAMI

发明人： Yukio OTOME ,  Tomoaki MURAKAMI

IPC分类号： B41J2/14

CPC分类号： B41J2/14233

摘要： A liquid discharge head includes: multiple nozzles; multiple individual chambers respectively communicating with the multiple nozzles; a common chamber communicating with each of the multiple individual chambers; multiple fluid restrictors between each of the multiple individual chambers and the common chamber; and multiple actuators driven to cause a liquid in the multiple individual chambers to be discharged from the multiple nozzles, a meniscus formed at each of the multiple nozzles has a natural period of vibration different from each of: a resonant period of the common chamber; half of the resonant period of the common chamber; and a quarter of the resonant period of the common chamber.

公开(公告)号：US20200346457A1

公开(公告)日：2020-11-05

申请号：US16934581

申请日：2020-07-21

申请人： Junichi Iwata ,  Takahiro Yoshida ,  Yukio Otome ,  Tomoaki Murakami

发明人： Junichi Iwata ,  Takahiro Yoshida ,  Yukio Otome ,  Tomoaki Murakami

IPC分类号： B41J2/14 ,  B41J2/045 ,  B41J2/15

摘要： A liquid discharge head includes a nozzle to discharge a liquid, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber to supply the liquid to the individual chamber, and a discharge channel communicating with the individual chamber to discharge the liquid in the individual chamber. A fluid resistance of the supply channel is greater than a fluid resistance of the discharge channel.