公开(公告)号：US20130187986A1

公开(公告)日：2013-07-25

申请号：US13719313

申请日：2012-12-19

Applicant: SII Printek Inc.

Inventor： Osamu KOSEKI

IPC: B41J2/14 ,  H01L21/64

CPC classification number: B41J2/1433 ,  B41J2/14209 ,  B41J2/145 ,  B41J2/1609 ,  B41J2/1631 ,  B41J2/1646 ,  B41J2002/14491 ,  B41J2202/11 ,  H01L21/64

Abstract: A liquid jet head (1) has an actuator portion (2). The actuator portion includes: a first recessed portion (6), left and right second recessed portions (7L, 7R) formed at a distance from the first recessed portion and provided so as to sandwich the first recessed portion therebetween; and left and right channel rows (9L, 9R) provided between the first recessed portion and the left and right second recessed portions, respectively, the left and right channel rows each including a plurality of channels arrayed therein, the plurality of channels each having one end portion opened to the first recessed portion and another end portion opened to one of the left and right second recessed portions. The left channel row (9L) and the right channel row (9R) are offset in a row direction by ½ of a channel pitch.

Abstract translation: 液体喷射头（1）具有致动器部分（2）。 所述致动器部包括：第一凹部（6），与所述第一凹部间隔一定距离地形成的左右的第二凹部（7L，7R），设置成将所述第一凹部夹在其间; 以及分别设置在第一凹部和左右第二凹部之间的左右通道列（9L，9R），每个包括排列在其中的多个通道的左右通道行，多个通道各自具有一个 向第一凹部开口的端部，向左右第二凹部中的一方开口的另一端部。 左通道列（9L）和右通道列（9R）在行方向上偏移通道间距的1/2。

公开(公告)号：US20250100281A1

公开(公告)日：2025-03-27

申请号：US18890254

申请日：2024-09-19

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/16 ,  B41J2/14

Abstract: A head chip, a liquid jet head, a liquid jet recording apparatus, and a method of manufacturing a head chip capable of preventing penetrating holes from being stopped up with an adhesive while increasing the yield ratio are provided. The head chip according to an aspect of the present disclosure includes a first plate provided with a first interconnection formed on an obverse surface, and a second plate bonded to the obverse surface. The second plate is provided with a first recessed part opening on a first surface, and a second recessed part opening on a second surface. The second recessed part includes a first inner surface part extending in a thickness direction at an inner side of the inner surface of the first recessed part viewed from the thickness direction, and a second inner surface part extending in the thickness direction at an outer side of the inner surface of the first recessed part. The second plate is provided with a second interconnection which penetrates the second plate through the first inner surface part and the inner surface of the first recessed part, and which couples an external interconnection disposed at the first side in the thickness direction to the second plate and the first interconnection to each other.

公开(公告)号：US12257839B2

公开(公告)日：2025-03-25

申请号：US18080534

申请日：2022-12-13

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama

IPC: B41J2/14 ,  B41J2/16

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing pressure generated while achieving power saving are provided. The head chip according to an aspect of the present disclosure includes a flow channel member, an actuator plate, and drive electrodes. The drive electrodes include a first electrode disposed on a first surface of the actuator plate so as to overlap one of a pressure chamber and a partition wall when viewed from a first direction, a second electrode which is disposed on the first surface of the actuator plate so as to be adjacent to the first electrode, and which generates a potential difference from the first electrode, and a first opposed electrode which is individually disposed on a second surface of the actuator plate at a position opposed to the first electrode, and which generates a potential difference from the first electrode.

公开(公告)号：US20250091353A1

公开(公告)日：2025-03-20

申请号：US18887774

申请日：2024-09-17

Applicant: SII Printek Inc.

Inventor： Masaya MOTOYOSHI

IPC: B41J2/175 ,  B41J2/045

Abstract: There are provided a liquid jet head and so on capable of increasing the ejection reliability. A liquid jet head according to an embodiment of the present disclosure includes a jet unit including a plurality of nozzles, a plurality of pressure chambers which is individually communicated with the plurality of nozzles, and which is filled with the liquid, a liquid supply chamber configured to supply the liquid to insides of the pressure chambers, and a liquid recovery chamber configured to recover the liquid from the insides of the pressure chambers, and a drive unit configured to drive the jet unit based on a drive signal to jet the liquid which fills the inside of the pressure chamber from the nozzle. The drive unit drives the jet unit based on a first drive signal as the drive signal when performing a printing operation on a recording target medium so as to achieve ejection strength lower than meniscus breaking strength of breaking a meniscus in the jet unit, and drives the jet unit based on a second drive signal as the drive signal when performing a flushing operation as a non-printing operation of performing dummy ejection of the liquid from the nozzle so as to achieve the ejection strength higher than the meniscus breaking strength.

公开(公告)号：US12138927B2

公开(公告)日：2024-11-12

申请号：US18080489

申请日：2022-12-13

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama

IPC: B41J2/14

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of inhibiting mechanical crosstalk, and exerting a desired jet performance are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a plurality of pressure chambers containing liquid, an actuator plate which is stacked on the flow channel member in a state of being opposed in a first direction to the pressure chambers, and a drive electrode which is formed on a surface of the actuator plate, the surface facing to the first direction, and which is configured to deform the actuator plate in the first direction to change a volume of at least one of the pressure chambers. A dividing groove which is configured to zone the actuator plate between the pressure chambers adjacent to each other is formed in a portion of the actuator plate, the portion being located between the pressure chambers adjacent to each other when viewed from the first direction.

公开(公告)号：US12138915B2

公开(公告)日：2024-11-12

申请号：US18169453

申请日：2023-02-15

Applicant: SII Printek Inc.

Inventor： Kensuke Yoshida ,  Akihiro Itagi

IPC: B41J2/045

Abstract: There are provided a liquid jet head and so on capable of enhancing the reliability. A liquid jet head according to an embodiment of the present disclosure includes a jet section configured to jet liquid, at least one drive circuit configured to output a drive signal used to jet the liquid to the jet section, a differential input line configured to transmit data from an outside of the liquid jet head toward the drive circuit, a differential output line configured to transmit data from the drive circuit toward the outside of the liquid jet head, a coupling part which is arranged between the outside of the liquid jet head and the drive circuit, and to which the differential input line and the differential output line are individually coupled, and a detection circuit configured to perform detection of a coupling state in the coupling part using a transmission signal in at least one of the differential output line and the differential input line.

公开(公告)号：US12122159B2

公开(公告)日：2024-10-22

申请号：US18082257

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama

IPC: B41J2/14

CPC classification number: B41J2/14209 ,  B41J2/14201 ,  B41J2/14072 ,  B41J2002/14225

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing pressure generated while achieving power saving are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a pressure chamber containing liquid, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction to change a volume of the pressure chamber, and a non-drive member which is stacked at an opposite side to the flow channel member across the actuator plate in the first direction, and which is configured to limit a displacement of the actuator plate toward an opposite side to the flow channel member in the first direction.

公开(公告)号：US20240227395A9

公开(公告)日：2024-07-11

申请号：US18547507

申请日：2022-02-24

Applicant: YAMAGATA UNIVERSITY ,  SII PRINTEK INC.

Inventor： Shinri SAKAI ,  Ryoichi BIZEN

IPC: B41J2/14 ,  B41J2/16 ,  G03F7/20 ,  G03F7/40

CPC classification number: B41J2/14201 ,  B41J2/162 ,  B41J2/1631 ,  G03F7/20 ,  G03F7/40

Abstract: The present disclosure provides an inkjet head capable of continuously ejecting droplets at a high frequency even when an ink having high viscosity is used. The present is directed to an inkjet head characterized in that the inkjet head comprises a nozzle plate portion on which a nozzle for ejecting droplets is formed, a vibration plate disposed opposite to an inlet of the nozzle, a weight disposed in contact with the vibration plate, and an actuator in contact with the weight, wherein the actuator is driven by a drive signal to fly the weight to eject ink in the ink chamber formed between the nozzle plate portion and the vibration plate from the nozzle, and wherein a storage space in which the actuator is disposed is configured to be separated from the ink chamber by the vibration plate.

公开(公告)号：US20240131841A1

公开(公告)日：2024-04-25

申请号：US18547507

申请日：2022-02-24

Applicant: YAMAGATA UNIVERSITY ,  SII PRINTEK INC.

Inventor： Shinri SAKAI ,  Ryoichi BIZEN

IPC: B41J2/14 ,  B41J2/16 ,  G03F7/20 ,  G03F7/40

CPC classification number: B41J2/14201 ,  B41J2/162 ,  B41J2/1631 ,  G03F7/20 ,  G03F7/40

Abstract: The present disclosure provides an inkjet head capable of continuously ejecting droplets at a high frequency even when an ink having high viscosity is used. The present is directed to an inkjet head characterized in that the inkjet head comprises a nozzle plate portion on which a nozzle for ejecting droplets is formed, a vibration plate disposed opposite to an inlet of the nozzle, a weight disposed in contact with the vibration plate, and an actuator in contact with the weight, wherein the actuator is driven by a drive signal to fly the weight to eject ink in the ink chamber formed between the nozzle plate portion and the vibration plate from the nozzle, and wherein a storage space in which the actuator is disposed is configured to be separated from the ink chamber by the vibration plate.

公开(公告)号：US20230126898A1

公开(公告)日：2023-04-27

申请号：US17969965

申请日：2022-10-20

Applicant: SII Printek Inc.

Inventor： Yuzuru KUBOTA

IPC: B41J25/304

Abstract: A liquid jet head is accurately positioned to a head installation part of a liquid jet recording device. A positioning structure includes a positioning pin provided to a carriage, and a positioning mechanism provided to an inkjet head, wherein the positioning mechanism includes a contact member having contact with the positioning pin, and a displacement mechanism for displacing the contact member along a displacement axis extending in an oblique direction crossing a direction perpendicular to an installation surface of head installation part, and a contact part of the positioning pin is formed to have a curved surface shape taking a first intersecting axis crossing the installation surface as a central axis, and a contact part of the contact member is formed to have a curved surface shape taking a second intersecting axis as a central axis, the second intersecting axis crossing an imaginary plane including a displacement axis and a vertical axis (the first intersecting axis) extending in a direction perpendicular to the installation surface, and the second intersecting axis being nonparallel to the first intersecting axis.