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1. 发明申请

US20190248137A1 Non-Contact Liquid Printing 审中-公开
公开(公告)号：US20190248137A1
公开(公告)日：2019-08-15
申请号：US16309568
申请日：2018-12-13
申请人： The Technology Partnership Plc
发明人： Abi Graham , Sam Pollock , Sam Hyde
IPC分类号： B41J2/14
CPC分类号： B41J2/14201 , B41J2/1433 , B41J2/14427 , B41J2002/14475 , B41J2202/15
摘要： A perforate element for use in a print head for non-contact liquid printing comprises: at least one ejection element including an outlet, configured to eject a bulk flow of printing liquid out of the print head; and a liquid residence element, arranged to provide a layer of liquid over the outlet which extends laterally of the outlet and through which the bulk flow is ejected.

2. 发明申请

US20190217614A1 VALVE TYPE NOZZLE AND LIQUID DISCHARGE APPARATUS 审中-公开
公开(公告)号：US20190217614A1
公开(公告)日：2019-07-18
申请号：US16249388
申请日：2019-01-16
申请人： Ricoh Company, Ltd.
发明人： Tadashi KAIBA , Shuusei MURAI
IPC分类号： B41J2/14
CPC分类号： B41J2/14201 , B05C5/0229 , B41J2/1433 , B41J3/4073
摘要： A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.

3. 发明申请

US20190118214A1 FLUID EJECTION APPARATUS 审中-公开
公开(公告)号：US20190118214A1
公开(公告)日：2019-04-25
申请号：US16221431
申请日：2018-12-14
申请人： Hewlett-Packard Development Company, L.P.
发明人： Alexander N. Govyadinov , Paul A. Richards
IPC分类号： B05C5/02 , B41J2/14 , B41J2/175
CPC分类号： B05C5/02 , B41J2/1404 , B41J2/14201 , B41J2/175 , B41J2/17563 , B41J2/17596 , B41J2002/14403 , B41J2002/14467 , B41J2202/12
摘要： A fluid ejection apparatus may include a drop generator to eject fluid droplets in a vertical direction and a fluid channel containing the drop generator. The fluid channel may include a vertical inlet through which fluid is to enter the fluid channel and a vertical outlet through which fluid not ejected by the drop generator is to be circulated out of the fluid channel.

4. 发明申请

US20190054741A1 METHOD FOR ACTUATING AN INK-JET PRINT HEAD 审中-公开
公开(公告)号：US20190054741A1
公开(公告)日：2019-02-21
申请号：US15743699
申请日：2016-07-11
申请人： Jan Franck
发明人： Jan Franck
IPC分类号： B41J2/045 , B41J2/14
CPC分类号： B41J2/04581 , B41J2/04503 , B41J2/04588 , B41J2/04593 , B41J2/04595 , B41J2/14201
摘要： The invention relates to a method for actuating an inkjet print head, comprising at least one printing system having a nozzle on the side of an ink chamber which faces a substrate to be imprinted, and which is delimited at least in areas, preferably in its area facing away from the print substrate, by a diaphragm that is movable away from the ink chamber by electrically actuating a piezo element that is mechanically coupled to the diaphragm, so that ink is drawn into the ink chamber from a reservoir, and the diaphragm is movable into the ink chamber so that an ink drop is ejected from the ink chamber through the nozzle, wherein the printing system made up of the ink chamber, diaphragm, piezo element, and the electronic control system thereof represents an oscillatable structure which, when actuated at high energy, is excited to oscillate at a natural frequency fres that exhibits resonance; i.e. the oscillation with the period Tres=1/fres undergoes little or no attenuation, and wherein the brightness of a pixel to be printed is varied in that, for each pixel, a sequence of multiple ink drops is ejectable in succession from the same nozzle at a time interval of Tdrop=1/fdrop, and energy is only introduced into the printing system via the actuation signal precisely when an ink drop is actually to be ejected.

5. 发明申请

US20180345670A1 LEAD-FREE PIEZO PRINTHEAD USING THINNED BULK MATERIAL 审中-公开
公开(公告)号：US20180345670A1
公开(公告)日：2018-12-06
申请号：US15611179
申请日：2017-06-01
申请人： Xerox Corporation , Brown University
发明人： Peter J. Nystrom , Gary D. Redding , Angus Ian Kingon , Seunghyun Kim , Nicholas Mostovych
IPC分类号： B41J2/14 , B41J2/16
CPC分类号： B41J2/14233 , B41J2/14201 , B41J2/161 , C04B35/453 , C04B35/475 , C04B2235/768
摘要： An apparatus for a lead-free piezoelectric ink-jet printhead is disclosed. Piezoelectric printheads, while more expensive are favored because they use a wider variety of inks. The piezoelectric printhead includes a diaphragm, a plurality of piezoelectric actuators comprising a lead-free piezoelectric material, at least one nozzle, at least one ink chamber, a top electrode, and a drive circuit. The deflection of the diaphragm on the body chamber contributes to a pressure pulse that is used to eject a drop of liquid from the nozzle. According to an exemplary embodiment, a lead-free piezoelectric printhead operated at smaller thicknesses and significantly higher electric fields is disclosed, along with methods of making such printheads.

6. 发明申请

US20180323729A1 Piezoelectric Driving Device, Electronic Component Conveyance Apparatus, Robot, Projector, And Printer 审中-公开
公开(公告)号：US20180323729A1
公开(公告)日：2018-11-08
申请号：US15967875
申请日：2018-05-01
申请人： Seiko Epson Corporation
发明人： Yutaka ARAKAWA , Tomohisa IWAZAKI
IPC分类号： H02N2/10 , H02N2/00 , B65G23/22 , B25J9/00 , B41J2/14
CPC分类号： H02N2/103 , B25J9/0009 , B41J2/14201 , B65G23/22 , G03B21/142 , H01L21/67706 , H02N2/0055
摘要： A first member, a second member, a bearing that rotatably supports the second member about a rotation axis relative to the first member, a driven member placed on the first member, and a plurality of piezoelectric actuators that transmit driving forces for rotating the second member about the rotation axis relative to the first member to the driven member are provided, and the piezoelectric actuators are supported by the second member while being pressed against the first member or the member fixed thereto, and, as seen from a direction along the rotation axis, a center of pressing forces from the plurality of piezoelectric actuators to the driven member is located inside of an outer circumferential part of the bearing.

7. 发明申请

US20180304621A1 Ink jetting apparatus and printing system including the same 审中-公开
公开(公告)号：US20180304621A1
公开(公告)日：2018-10-25
申请号：US15843001
申请日：2017-12-15
申请人： Enjet Co. Ltd.
发明人： Do Young BYUN
IPC分类号： B41J2/045 , B41J2/175 , B41J2/14 , B41J2/07
CPC分类号： B41J2/04511 , B41J2/04 , B41J2/072 , B41J2/1408 , B41J2/14104 , B41J2/14201 , B41J2/175 , B41J2202/02 , H05K2203/013
摘要： The present disclosure relates to an ink jetting apparatus and a printing system including the same, the ink jetting apparatus including a liquid droplet generating unit configured to generate liquid droplets and jet the generated liquid droplets, a guide channel unit having a channel to guide the jetted liquid droplets and control evaporation of the liquid droplets, and being configured to protect the liquid droplets from thermal and physical disturbance; and a nozzle unit configured to discharge the liquid droplets that passed through the guide channel unit towards a substrate.

8. 发明申请

US20180304486A1 CUTTING DEVICE AND PRINTING APPARATUS 审中-公开
公开(公告)号：US20180304486A1
公开(公告)日：2018-10-25
申请号：US15958761
申请日：2018-04-20
申请人： SEIKO EPSON CORPORATION
发明人： Masashi NAKATSU
IPC分类号： B26D7/00 , B26D1/20 , B26D5/06 , B65H35/00 , B65H20/02 , B41J11/70 , B41J11/06 , B41J15/06
CPC分类号： B26D7/0006 , B26D1/185 , B26D1/205 , B26D5/02 , B26D5/06 , B26D5/16 , B26D2007/005 , B26D2210/11 , B41J2/06 , B41J2/14016 , B41J2/14201 , B41J11/06 , B41J11/70 , B41J11/706 , B41J15/06 , B65H20/02 , B65H35/0086
摘要： A cutting portion (cutting device) includes a fixed blade that extends in an intersecting direction (X axis direction) intersected with a transport direction transporting a roll paper, and a round blade that cuts the roll paper by relatively moving in the intersecting direction (X axis direction) with respect to the fixed blade in a state of being abutted on the fixed blade, in which the fixed blade extends over a portion of a range where the round blade relatively moves, and the round blade is in a separation state of being separated from the fixed blade in the transport direction when entering a region facing the fixed blade (cutting operation region) from a region not facing the fixed blade (standby region).

9. 发明申请

US20180277738A1 Piezoelectric Element, Piezoelectric Device, Ultrasonic Probe And Electronic Apparatus 审中-公开
公开(公告)号：US20180277738A1
公开(公告)日：2018-09-27
申请号：US15935539
申请日：2018-03-26
申请人： Seiko Epson Corporation
发明人： Koji OHASHI , Takahiro KAMIJO , Katsuhiro IMAI , Takumi YAMAOKA , Chikara KOJIMA
IPC分类号： H01L41/047 , H01L41/053 , H01L41/187 , H01L41/09 , H01L41/29 , B06B1/02 , B06B1/06 , G01N29/24 , A61B8/12 , A61B8/06
CPC分类号： H01L41/0475 , A61B8/06 , A61B8/12 , B06B1/0215 , B06B1/0622 , B06B1/067 , B06B2201/76 , B41J2/14201 , G01N29/245 , H01L41/047 , H01L41/0477 , H01L41/0533 , H01L41/09 , H01L41/0973 , H01L41/1876 , H01L41/29
摘要： A piezoelectric element has a first electrode layer, a piezoelectric layer on the first electrode layer, a second electrode layer on the piezoelectric layer, a third electrode layer on part of the second electrode layer and including third metal, and an insulating layer covering at least a part of the piezoelectric layer not provided with the second electrode layer and having an aperture exposing a part of the second electrode layer. The second electrode layer has a first layer including first metal and a second layer including second metal on the first layer. The second layer is exposed in the aperture. A difference in standard redox potential between the second metal and the third metal is smaller than a difference in standard redox potential between the first metal and the third metal.

10. 发明申请

US20180272738A1 INKJET PRINTER 审中-公开
公开(公告)号：US20180272738A1
公开(公告)日：2018-09-27
申请号：US15762248
申请日：2016-09-06
申请人： RISO KAGAKU CORPORATION
发明人： Hiroshi SUGITANI
IPC分类号： B41J2/18 , B41J2/175
CPC分类号： B41J2/18 , B41J2/01 , B41J2/14201 , B41J2/175 , B41J2/17556 , B41J2/17596 , B41J2202/02
摘要： An inkjet printer includes: a pressurized space and a depressurized space for circulation of ink along a circulation path; a main connection path and an adjustment path connecting the pressurized space and the depressurized space to each other; an air pump configured to send air from the depressurized space to the pressurized space though the main connection path or the adjustment path; a changeover device configured to change over between the main connection path and the adjustment path; and a controller. The controller drives the air pump with the main connection path being set to generate preset pressures respectively in the pressurized space and the depressurized space and then controls the air pump with the adjustment path being changed over to maintain pressures in the pressurized space and the depressurized space respectively at the preset pressures.

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