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公开(公告)号：US20240359464A1
公开(公告)日：2024-10-31
申请号：US18627634
申请日：2024-04-05
发明人： TADAHIRO MIMURA , JUNRI ISHIKURA , YOHEI MIYAUCHI , KOJI SASAKI
CPC分类号： B41J2/1433 , B41J2/162 , B41J2/164 , C04B41/009 , C04B41/4846 , C04B41/83
摘要： Provided is an ink-repellent member including an underlying portion containing at least one of a silicon oxide and a tantalum oxide, the underlying portion having a fluorine compound bonded to a surface thereof, wherein, when a static contact angle and a receding contact angle of the surface after the ink-repellent member is subjected to the following immersion treatment are represented by θ and θr, respectively, the θ is 100° or more and θ−θr is less than 20°: (Immersion Treatment) (1) a test piece including the surface is cut out of the ink-repellent member, is placed in a sealable container containing an aqueous solution having a pH of 11, and is immersed in the aqueous solution so that the test piece is entirely immersed therein; and (2) the test piece is maintained at 70° C. for 170 hours under a sealed state after the immersion in (1).
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公开(公告)号：US20240359460A1
公开(公告)日：2024-10-31
申请号：US18770852
申请日：2024-07-12
发明人： Taichi Yonemoto
CPC分类号： B41J2/14145 , B41J2/1601 , B41J2/164
摘要： A liquid ejection head has at least a structure including an ejection orifice forming member having an ejection orifice for ejecting a liquid and a flow path communicating with the ejection orifice and a flow path forming substrate having a liquid introduction flow path communicating with the flow path and supplying the liquid, and includes: a first titanium oxide film with a pure water contact angle of 40° or less; and a second titanium oxide film with a pure water contact angle of 70° or more, wherein the first titanium oxide film covers the structure including inner walls of the flow path and the liquid introduction flow path and is exposed in the flow path and the liquid introduction flow path, and the second titanium oxide film has a portion covering the first titanium oxide film in a vicinity of an opening end.
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公开(公告)号：US20240351331A1
公开(公告)日：2024-10-24
申请号：US18640654
申请日：2024-04-19
发明人： KOICHI ISHIDA , SHUZO IWANAGA , HIROAKI MIHARA , SATOSHI KIMURA , TOMOHIRO SATO
CPC分类号： B41J2/14024 , B41J2/1433 , B41J2/2103 , B41J2002/14411
摘要： A liquid ejection head includes a print element substrate having an ejection port forming member including an ejection surface on which a plurality of ejection port arrays for ejecting liquid are formed and a protection member having an opening corresponding to one of the ejection port arrays, the protection member is provided with at least one recessed portion at an end parallel to a direction of the plurality of ejection port arrays in a direction orthogonal to the plurality of ejection port arrays and a projection portion projecting in the direction orthogonal to the plurality of ejection port arrays, the projection portion is provided inside the at least one recessed portion, and the ejection port forming member has a corresponding recessed portion corresponding to the projection portion in the direction orthogonal to the plurality of ejection port arrays.
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公开(公告)号：US20240343039A1
公开(公告)日：2024-10-17
申请号：US18420055
申请日：2024-01-23
发明人： EUNSEOK KIM
CPC分类号： B41J2/1408 , H10K71/135
摘要： An inkjet printing apparatus includes: a head module including a plurality of head nozzles and at least one cooling member, where the plurality of head nozzles are arranged in a row along a first direction and configured to discharge a liquid body on a substrate which moves along a second direction crossing the first direction, and the cooling member is spaced apart from the plurality of head nozzles in the second direction and configured to compensate for a temperature of the substrate; and a control module which provides a control signal for controlling the cooling member to the head module.
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公开(公告)号：US12115787B2
公开(公告)日：2024-10-15
申请号：US17848475
申请日：2022-06-24
发明人： Shogo Kawamura , Takuya Iwano
IPC分类号： B41J2/14
CPC分类号： B41J2/1408 , B41J2/14024 , B41J2002/14306 , B41J2202/08 , B41J2202/19 , B41J2202/20
摘要： A liquid ejection head with which print of good print quality can be obtained and a method of manufacturing the liquid ejection head are provided. For that purpose, warped flow path members are joined to each other as flow path members used for a print head to form a flow path member warped in a direction opposite to a direction of warpage due to a temperature rise during printing.
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公开(公告)号：US12109813B2
公开(公告)日：2024-10-08
申请号：US18060691
申请日：2022-12-01
发明人： Motoki Takabe
IPC分类号： B41J2/14
CPC分类号： B41J2/14201 , B41J2/14233 , B41J2002/14241 , B41J2002/14362 , B41J2002/14419 , B41J2002/14491
摘要： A liquid ejecting head includes: a sealing substrate provided in such a way as to cover the first piezoelectric element and the second piezoelectric element; a wiring board configured to apply a voltage to a common electrode, a first individual electrode, and a second individual electrode; a first wiring portion provided above the pressure chamber substrate and configured to electrically couple the common electrode to the wiring board; a second wiring portion provided at a lower surface of the sealing substrate and configured to electrically couple the common electrode to the wiring board; and a third wiring portion provided between the first piezoelectric element and the second piezoelectric element and configured to electrically couple the first wiring portion to the second wiring portion.
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公开(公告)号：US12109810B2
公开(公告)日：2024-10-08
申请号：US17693614
申请日：2022-03-14
发明人： Shuhei Hiwada
CPC分类号： B41J2/04588 , B41J2/04536 , B41J2/04581 , B41J2/14201
摘要： There is provided head including: nozzle configured to discharge liquid by energy generating element; signal generator configured to generate, based on first and second data representing first and second driving waveform, time division multiplex signal including first and second portions of the first driving waveform, and third and fourth portions of the second driving waveform; and separator configured to separate first or second driving waveform signal representing the first or second driving waveform from the time division multiplex signal. The energy generating element is configured to be driven by the first or second driving waveform signal. In the time division multiplex signal, the third portion is aligned between the first and second portions and the second portion is aligned between the third and fourth portions. The time division multiplex signal is capable of transmitting the first and second data via single signal line.
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公开(公告)号：US20240326436A1
公开(公告)日：2024-10-03
申请号：US18617728
申请日：2024-03-27
发明人： Masahiro FUJII , Koji KITAHARA , Shinichi YOTSUYA , Motoki TAKABE
CPC分类号： B41J2/1607 , B41J2/14201 , B41J2/1629 , B41J2/1631 , B41J2/164 , B41J2002/14306
摘要： the method comprising: a first step of forming the narrowed portion by performing metal-assisted chemical etching in a state in which a metal film is formed at a surface of a first portion corresponding to the narrowed portion, the surface of the first portion being a part of a first surface of a semiconductor substrate, and the metal film is not formed at a surface of a second portion not corresponding to the narrowed portion, the surface of the second portion being a part of the first surface.
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公开(公告)号：US20240326431A1
公开(公告)日：2024-10-03
申请号：US18605880
申请日：2024-03-15
CPC分类号： B41J2/1433 , B41J2/165
摘要： A discharge head includes a nozzle face, multiple nozzles, and a projection. The multiple nozzles are arrayed in a first direction on the nozzle face to define a nozzle row; are dischargeable a liquid from each of the multiple nozzles in a discharge direction; and has an end nozzle at an end of the nozzle row in the first direction. The projection projects in the discharge direction from the nozzle face. The projection is disposed: between one side of the nozzle face and the nozzle row in a second direction; and at the end nozzle in the first direction. The projection has: a first side wall outside the end nozzle in the first direction and having a first face parallel to the second direction; and a second sidewall inside the end nozzle in the first direction and having a second face slanted or curved with respect to the second direction.
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公开(公告)号：US20240326429A1
公开(公告)日：2024-10-03
申请号：US18621150
申请日：2024-03-29
申请人： Chikako HATTA , Kohta AKIYAMA
发明人： Chikako HATTA , Kohta AKIYAMA
CPC分类号： B41J2/14274 , B41J2/165 , B41J2/175 , B41J11/007 , B41J2002/14306
摘要： A liquid discharge head includes a nozzle plate and a channel substrate. The nozzle plate has a nozzle from which a liquid is dischargeable in a first direction. The channel substrate is laminated over the nozzle plate. The channel substrate has a pressure chamber, an individual supply chamber having a first height h1, and a fluid restrictor. The liquid flows from the individual supply chamber to the pressure chamber through the fluid restrictor in a second direction. The fluid restrictor has a width narrower than each of a width of the pressure chamber and a width of the individual supply chamber in a third direction, and a second height h2 smaller than the first height h1 in the first direction. The first height h1 of the individual supply chamber and the second height h2 of the fluid restrictor satisfy 0.3≤h2/h1≤0.6.
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