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公开(公告)号：US20240294011A1
公开(公告)日：2024-09-05
申请号：US18591995
申请日：2024-02-29
发明人： Masanori MIKOSHIBA , Motoki TAKABE
CPC分类号： B41J2/14274 , H10N30/2047 , H10N30/50
摘要： A liquid ejecting head includes: a piezoelectric element including a piezoelectric layer; a pressure compartment substrate in which a pressure compartment is provided; and a diaphragm that applies pressure to liquid in the pressure compartment by vibrating by being driven by the piezoelectric element. The pressure compartment substrate, the diaphragm, and the piezoelectric element are stacked in this order in a stacking direction. A neutral plane of a stacked body made up of the piezoelectric element and the diaphragm is located inside the piezoelectric layer. Of two regions obtained by dividing the piezoelectric layer with respect to the neutral plane, a region located closer to the diaphragm is defined as a lower region, and a region located farther from the diaphragm is defined as an upper region. A piezoelectric constant of the lower region is less than a piezoelectric constant of the upper region.
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公开(公告)号：US12076991B2
公开(公告)日：2024-09-03
申请号：US17880708
申请日：2022-08-04
发明人： Yoichi Naganuma , Yuma Fukuzawa , Shohei Mizuta
IPC分类号： B41J2/14
CPC分类号： B41J2/14233 , B41J2002/14419 , B41J2202/11 , B41J2202/12
摘要： A liquid ejecting head includes a first pressure compartment extending in a first direction; a second pressure compartment extending in the first direction; a first communication passage continuous from the first pressure compartment and extending in the first direction; a second communication passage continuous to the second pressure compartment and extending in the first direction; a third communication passage continuous from the first communication passage and extending in a second direction intersecting with the first direction; a fourth communication passage continuous to the second communication passage and extending in the second direction; a fifth communication passage continuous from the third communication passage and continuous to the fourth communication passage and extending in the first direction; and a nozzle provided on the fifth communication passage.
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公开(公告)号：US12076986B2
公开(公告)日：2024-09-03
申请号：US17861277
申请日：2022-07-11
申请人： Masahiro Saito
发明人： Masahiro Saito
CPC分类号： B41J2/14 , B41J2/17523 , B41J2002/14419
摘要： A manifold includes: a liquid chamber including an elastic damper, the liquid chamber configured to store a liquid; multiple head couplers on a lower end of the liquid chamber, the multiple head couplers configured to be respectively coupled to multiple liquid discharge heads and spaced apart in a longitudinal direction of the liquid chamber; and a tank coupler on an upper end of the liquid chamber, the tank coupler configured to be coupled to a tank configured to store liquid to be supplied to or discharged from the manifold, wherein a length of the liquid chamber increases from the tank coupler on the upper end toward the multiple head couplers on the lower end of the liquid chamber.
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公开(公告)号：US12070946B2
公开(公告)日：2024-08-27
申请号：US17702557
申请日：2022-03-23
发明人： Naoto Miyakoshi , Shuji Osaki
IPC分类号： B41J2/14
CPC分类号： B41J2/14
摘要： A head unit includes a recording head and a unit frame. The unit frame includes a main frame extending along a width direction orthogonal to a conveyance direction of a recording medium, and is configured to hold one or more recording heads on both side surfaces of the main frame. The main frame includes: a main body portion having a flat-plate shape and standing along the width direction; and bent portions formed by perpendicularly bending both end portions of the main body portion in the width direction. The unit frame includes a pair of reinforcing members provided at the bent portions. The reinforcing members each include a side wall portion opposed to the main body portion and a bottom surface portion provided so as to extend in a horizontal direction from a lower end portion of the side wall portion.
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公开(公告)号：US12070941B2
公开(公告)日：2024-08-27
申请号：US17892409
申请日：2022-08-22
发明人： Yoichiro Kondo
CPC分类号： B41J2/04541 , B41J2/04581 , B41J2/14 , B41J2002/14491
摘要： A liquid discharge device including a discharge head, a head drive circuit that outputs a first drive signal, and a second drive signal, and a coupling member includes a first wiring that propagates the first drive signal, a second wiring that propagates the second drive signal, a third wiring that propagates a reference voltage signal, and a base material provided with the first wiring, the second wiring, and the third wiring, in which the first wiring and the second wiring are provided on a first surface of the base material, the third wiring is provided on a second surface different from the first surface of the base material, and at least one of the first wiring and the second wiring is located so as to overlap with at least a part of the third wiring in a first direction along a direction from the first surface to the second surface.
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公开(公告)号：US20240278583A1
公开(公告)日：2024-08-22
申请号：US18110813
申请日：2023-02-16
申请人： Nasser Budraa
发明人： Nasser Budraa
CPC分类号： B41J2/211 , B41J2/14282 , B41J2/1433 , B41J2/17513 , B41J2002/14467 , B41J2002/14483 , B41J2202/19
摘要： Printheads that jet print fluids. In an embodiment, a printhead comprises a plurality of jetting channels. Each jetting channel of the plurality includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid, and further includes one or more intra-chamber active mixers disposed in the pressure chamber. An intra-chamber active mixer comprises a cantilever having a connected end rigidly connected to a vertical side wall of the pressure chamber, and a free end that is free to move.
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公开(公告)号：US20240278564A1
公开(公告)日：2024-08-22
申请号：US18441448
申请日：2024-02-14
IPC分类号： B41J2/14
CPC分类号： B41J2/14274 , B41J2002/14483 , B41J2202/11
摘要： A liquid ejecting head includes a substrate having pressure chambers in communication with nozzles through which a liquid is ejected, a vibration plate on the substrate, and a piezoelectric actuator including a first electrode, a piezoelectric layer, and a second electrode stacked in a first direction on the vibration plate. The piezoelectric layer of the piezoelectric actuator has an active portion that overlaps the pressure chamber, the first electrode, and the second electrode when viewed in the first direction and a non-active portion that does not overlap at least one of the first electrode and the second electrode when viewed in the first direction. A piezoelectric material forming the piezoelectric layer has a larger crystal grain size in the non-active portion than in the active portion.
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公开(公告)号：US20240278559A1
公开(公告)日：2024-08-22
申请号：US18442174
申请日：2024-02-15
发明人： Motoki TAKABE , Sosuke YAMASAKI
CPC分类号： B41J2/14201 , B41J2/17526 , B41J3/543 , B41J2202/13
摘要： A first drive circuit substrate is provided at a position displaced to the other side in a first direction with respect to a center of a first head in the first direction. A first circuit side terminal is provided on a first surface of the first drive circuit substrate which faces one side in the first direction. A second circuit side terminal is provided on a second surface of the first drive circuit substrate which faces the other side in the first direction. When a direction orthogonal to both the first direction and a second direction is defined as a third direction and a side on which the first head is viewed from the first drive circuit substrate along the third direction is defined as a predetermined side, the first circuit side terminal provided at a position on the predetermined side with respect to the second circuit side terminal.
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公开(公告)号：US12064971B2
公开(公告)日：2024-08-20
申请号：US17809024
申请日：2022-06-27
申请人： Yuuta Aoki , Takeyuki Kobayashi
发明人： Yuuta Aoki , Takeyuki Kobayashi
CPC分类号： B41J2/17513 , B41J2/14 , B41J2202/12
摘要： A liquid discharge head includes a first head tank configured to store a liquid, a first intermediate chamber storing the liquid flowing from the first head tank, a second intermediate chamber storing the liquid flowing from the first intermediate chamber in a flow direction of the liquid, a second head tank storing a liquid flowing from the second intermediate chamber, a first communicating part communicating with the first head tank and the first intermediate chamber, a second communicating part communicating with the second head tank and the second intermediate chamber, and a discharge part configured to discharge a liquid supplied from the first intermediate chamber and the second intermediate chamber.
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公开(公告)号：US12064965B2
公开(公告)日：2024-08-20
申请号：US17901033
申请日：2022-09-01
发明人： Yosuke Miura , Yasuo Fujii , Yasuhiro Soeda
IPC分类号： B41J2/14
CPC分类号： B41J2/14072
摘要： According to the present invention, it is possible to provide an element substrate and a print head with which a decrease in yield and an increase in cost in a manufacturing process can be suppressed. For that purpose, a VH wiring line and a GNDH wiring line are provided in parallel in the same layer.
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