-
公开(公告)号：US11577512B2
公开(公告)日：2023-02-14
申请号：US17149382
申请日：2021-01-14
发明人： Masaki Mori , Motoki Takabe
IPC分类号： B41J2/14 , H01L41/04 , H01L41/047 , H01L41/09 , H01L41/187
摘要： A liquid discharge head to discharge a liquid includes a piezoelectric body, a first electrode layer disposed at least partly on the piezoelectric body in a stacking direction, and a first wiring disposed on the first electrode layer in the stacking direction, the first wiring being more likely to cause ion migration than the first electrode layer, in which the piezoelectric body, the first electrode layer, and the first wiring are stacked in the stacking direction. When a predetermined area on the piezoelectric body is a first area, and a predetermined area adjacent to the first area on the piezoelectric body is a second area, both the first wiring and the first electrode layer are disposed in the first area, and the first wiring is not disposed while the first electrode layer is disposed in the second area.
-
公开(公告)号：US11872813B2
公开(公告)日：2024-01-16
申请号：US17558757
申请日：2021-12-22
发明人： Masanori Mikoshiba , Motoki Takabe , Masaki Mori
CPC分类号： B41J2/14201 , B41J2/04581 , H10N30/20 , B41J2002/14491
摘要： when one of two positions in a second direction intersecting the first direction is defined as a first position and the other position is defined as a second position from which the shortest distance to the partition wall is shorter than the shortest distance from the first position to the partition wall, the vibrating plate has a first portion corresponding to the first position and a second portion corresponding to the second position, and a surface of the first portion in the first direction is, in the first direction, closer than a surface of the second portion in the first direction.
-
公开(公告)号：US11458730B2
公开(公告)日：2022-10-04
申请号：US17188336
申请日：2021-03-01
发明人： Motoki Takabe , Masanori Mikoshiba , Masaki Mori
摘要： A liquid ejecting head includes a diaphragm, a first electrode, a piezoelectric layer, and a second electrode in this order in a first direction, and ejects liquid. The second electrode includes a first portion that is next to the piezoelectric layer in the first direction and is electrically conductive. A length in the first direction is defined as a thickness. One position in a second direction intersecting with the first direction is defined as a first position. Another one position is defined as a second position that is closer to an end of the second electrode in the second direction than the first position is. Given the definition, the thickness of the first portion at the second position is less than the thickness of the first portion at the first position.
-
公开(公告)号：US20220258472A1
公开(公告)日：2022-08-18
申请号：US17650914
申请日：2022-02-14
发明人： Eiju Hirai , Yu Shiozawa , Masaki Mori
IPC分类号： B41J2/14 , H01L41/083 , H01L41/09
摘要： A liquid ejecting head includes a piezoelectric device including a first electrode, a second electrode, and a piezoelectric layer, a vibration plate that is deformed when the piezoelectric device is driven, a pressure chamber plate including a pressure chamber whose volume is changed by deformation of the vibration plate, a wiring board, an individual lead electrode through which the wiring board and the first electrode are electrically coupled to each other, a common lead electrode through which the wiring board and the second electrode are electrically coupled to each other, and a resistance wire electrically coupled to the wiring board and used to determine temperature in the pressure chamber.
-
公开(公告)号：US11273639B2
公开(公告)日：2022-03-15
申请号：US16826516
申请日：2020-03-23
发明人： Masaki Mori , Eiju Hirai , Motoki Takabe
IPC分类号： B41J2/14 , H01L41/09 , H01L41/047 , H01L41/04
摘要： The terminal portion extends onto a surface of the protrusion portion from part positioned in the second layer and corresponding to the second portion, and part on the surface of the protrusion portion contacts an electrode of the drive element.
-
公开(公告)号：US11951737B2
公开(公告)日：2024-04-09
申请号：US17812386
申请日：2022-07-13
发明人： Shoichiro Yokoo , Noritaka Ide , Eiju Hirai , Masaki Mori , Yu Shiozawa
CPC分类号： B41J2/04563 , B41J2/04565 , B41J2/04581 , B41J2/14233 , B41J2002/14491
摘要： A distance between the first circuit and the second circuit is a first distance, a distance between the first circuit and the temperature detection circuit is a second distance longer than the first distance, and a distance between the second circuit and the temperature detection circuit is a third distance longer than the first distance.
-
公开(公告)号：US12103304B2
公开(公告)日：2024-10-01
申请号：US18059885
申请日：2022-11-29
发明人： Masaki Mori , Yu Shiozawa , Hitoshi Takaai , Motoki Takabe , Eiju Hirai
IPC分类号： B41J2/045
CPC分类号： B41J2/04563 , B41J2/04581
摘要： A liquid discharge head includes a pressure chamber substrate that is provided with a plurality of pressure chambers, a piezoelectric body that is driven to apply pressure to liquid in the pressure chambers, an upper electrode that is provided above the piezoelectric body for applying a voltage to the piezoelectric body, a lower electrode that is provided below the piezoelectric body for applying a voltage to the piezoelectric body, a detection resistor that is provided below the piezoelectric body for detecting temperature of the liquid in the pressure chambers, and a first wiring portion that is electrically coupled to the detection resistor. The first wiring portion includes a first part that is extended above the piezoelectric body, and a second part that is provided in at least a part of a through hole penetrating the piezoelectric body and electrically coupled to the detection resistor.
-
公开(公告)号：US11872814B2
公开(公告)日：2024-01-16
申请号：US17650914
申请日：2022-02-14
发明人： Eiju Hirai , Yu Shiozawa , Masaki Mori
CPC分类号： B41J2/14274 , H10N30/2047 , H10N30/50 , B41J2202/03
摘要： A liquid ejecting head includes a piezoelectric device including a first electrode, a second electrode, and a piezoelectric layer, a vibration plate that is deformed when the piezoelectric device is driven, a pressure chamber plate including a pressure chamber whose volume is changed by deformation of the vibration plate, a wiring board, an individual lead electrode through which the wiring board and the first electrode are electrically coupled to each other, a common lead electrode through which the wiring board and the second electrode are electrically coupled to each other, and a resistance wire electrically coupled to the wiring board and used to determine temperature in the pressure chamber.
-
公开(公告)号：US11707930B2
公开(公告)日：2023-07-25
申请号：US17512917
申请日：2021-10-28
发明人： Motoki Takabe , Masaki Mori
CPC分类号： B41J2/14233 , B41J2/04541 , B41J2/161 , B41J2/1623
摘要： A piezoelectric device includes a diaphragm provided on a side of one surface of a substrate, and a piezoelectric actuator having a first electrode, a piezoelectric body layer, and a second electrode which are stacked in a first direction on a side of a surface opposite to the substrate of the diaphragm, in which when one area far from an end portion of the second electrode is a first area and one area near the end portion of the second electrode is a second area, of two areas of the second electrode in a second direction intersecting the first direction, the second electrode has a stiffness of 17,000 N/m or more in the second area in the first direction, which is higher than a stiffness in the first area in the first direction, and a length in the second area in the first direction is equal to or less than a length of the piezoelectric body layer in the second area in the first direction.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.019 秒)
