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公开(公告)号：US20230142273A1
公开(公告)日：2023-05-11
申请号：US17915967
申请日：2020-09-25
发明人： Rajesh Kelekar , Omer Gila
IPC分类号： C09D11/033 , C09D11/06 , C09D11/52
CPC分类号： C09D11/033 , C09D11/06 , C09D11/52
摘要： Described herein is a liquid electrophotographic ink composition comprising chargeable particles comprising a thermoplastic resin; and a carrier liquid produced from vegetable oil or animal fat, the carrier liquid comprising an aliphatic hydrocarbon, an ester of a fatty acid and a monoalcohol, or a mixture thereof. Also described herein is a process for producing the liquid electrophoto-graphic ink composition and a liquid electrophoto-graphic printing process.
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公开(公告)号：US11609515B2
公开(公告)日：2023-03-21
申请号：US17256361
申请日：2018-10-23
发明人： Napoleon J. Leoni , Omer Gila , Rajesh Kelekar
摘要： A device includes a first portion and a first charge source. The first portion is located along a travel path of a substrate and is to receive ink particles within a carrier fluid in a pattern onto the substrate to at least partially form an image. The first charge source is downstream along the travel path from the first portion and is to emit first polarity charges to charge the at least first color ink particles to move, via electrostatic attraction through the first carrier fluid, to become electrostatically fixed in the pattern relative to the substrate. Via the first charge source or a subsequent charge source, further emission of opposite second polarity charges are to maintain electrostatic fixation of the ink particles in the pattern relative to the substrate.
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公开(公告)号：US20220371334A1
公开(公告)日：2022-11-24
申请号：US17259808
申请日：2018-09-12
发明人： Omer Gila , Rajesh Kelekar , Napoleon J Leoni
摘要： An image formation device includes a first portion and a second portion. The first portion along a travel path is to receive droplets of color ink particles within a dielectric carrier fluid onto a substrate to form an image. The second portion includes a charge source to emit airborne charges to charge the color ink particles to move, via attraction relative to the substrate, through the carrier fluid to become electrostatically fixed relative to the substrate and to become additionally fixed, in their electrostatically fixed position, via distance-dependent, molecular forces relative to the substrate. The duration of additional fixation via distance-dependent, molecular forces may be at least greater than a duration of the electrostatic fixation.
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公开(公告)号：US20220355602A1
公开(公告)日：2022-11-10
申请号：US17764611
申请日：2019-10-29
发明人： Omer Gila , Napoleon J. Leoni , Rajesh Kelekar , Dekel Green
摘要： An image formation device includes a mixer, a fluid ejection device, and a liquid removal element. The mixer is to receive a first ink mixture of ink particles within a first non-aqueous liquid carrier in a first concentration, to receive a second non-aqueous liquid carrier, and to form a second ink mixture of the ink particles within both the first and second liquid carriers in a second concentration less than the first concentration. The fluid ejection device is to receive the second ink mixture and to deposit droplets of the second ink mixture onto a substrate to at least partially form an image via the ink particles. The liquid removal element is to remove the respective liquid carriers from the substrate to provide at least a portion of the second liquid carrier at the mixer to form part of the second ink mixture.
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公开(公告)号：US20240351039A1
公开(公告)日：2024-10-24
申请号：US18292266
申请日：2021-08-05
发明人： Rajesh Kelekar , Napoleon J. Leoni , Omer Gila
CPC分类号： B01L3/50851 , B01L7/52 , G01N21/6428 , G01N21/6452 , B01L2200/025 , B01L2200/0647 , B01L2300/12 , B01L2300/1805 , B01L2400/043
摘要： A device includes at least one well to receive a polymerase chain reaction (PCR) mixture and including a bottom. The bottom includes an electrically resistive sheet which has a relative magnetic permeability no greater than about 1.01, wherein the resistive sheet is to receive a signal from a signal source to cause the resistive sheet to generate heat to form a pulse-controlled amplification, thermal cycling zone in close thermal proximity to the bottom.
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公开(公告)号：US11884058B2
公开(公告)日：2024-01-30
申请号：US17761370
申请日：2019-10-29
发明人： Rajesh Kelekar , Napoleon J. Leoni , Omer Gila
IPC分类号： B41J11/00
CPC分类号： B41J11/00214 , B41J11/00216
摘要： An image formation device includes at least one frame portion supporting at least one emitter to emit airborne charges, at least one radiation element to emit radiation, and a fluid ejection device to deposit droplets of ink particles within a non-aqueous fluid carrier onto a substrate. Upon relative movement between the at least one frame portion and the substrate, the emitted airborne charges are to electrostatically fix, and the at least one radiation element is to emit radiation to cause at least further fixation of, the deposited particles relative to the substrate.
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公开(公告)号：US20220024222A1
公开(公告)日：2022-01-27
申请号：US17297577
申请日：2019-03-18
发明人： Rajesh Kelekar
IPC分类号： B41J2/41 , C09D11/36 , C09D11/107
摘要： A device includes an image formation medium supply, a first portion, and a second portion. The image formation medium supply is to supply a non-absorptive, image formation medium along a travel path and to which a ground element is to be electrically connected. The first portion along the travel path is to receive droplets of ink particles and a non-aqueous resin within a dielectric, non-aqueous carrier fluid on the image formation medium to form at least a portion of an image on the image formation medium. The second portion is downstream from the first portion and is to apply, via heat and pressure, a second polymer structure onto the ink particles, the resin, and the image formation medium to produce an image formation medium assembly.
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公开(公告)号：US20210247707A1
公开(公告)日：2021-08-12
申请号：US17056176
申请日：2018-10-29
发明人： Rajesh Kelekar , Napoleon J. Leoni , Omer Gila
IPC分类号： G03G15/16
摘要： A device includes an at least partially electrically conductive transfer member to travel along a travel path and a first portion along the travel path to receive an image-receiving holder onto the transfer member. A second portion is downstream from the first portion along the travel path to receive ink particles onto the image-receiving holder to form an image, while a transfer station is to transfer the ink particles and the image-receiving holder together from the transfer member to an image formation medium. A discharge element, which is interposed between the transfer station and the first portion, is to cause discharge of the transfer member.
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公开(公告)号：US11981149B2
公开(公告)日：2024-05-14
申请号：US17297577
申请日：2019-03-18
发明人： Rajesh Kelekar
CPC分类号： B41J2/41 , B41J2/4155 , B41J3/407 , B41J3/413 , B41M5/0058 , C09D11/107 , C09D11/36 , B41M7/009
摘要： A device includes an image formation medium supply, a first portion, and a second portion. The image formation medium supply is to supply a non-absorptive, image formation medium along a travel path and to which a ground element is to be electrically connected. The first portion along the travel path is to receive droplets of ink particles and a non-aqueous resin within a dielectric, non-aqueous carrier fluid on the image formation medium to form at least a portion of an image on the image formation medium. The second portion is downstream from the first portion and is to apply, via heat and pressure, a second polymer structure onto the ink particles, the resin, and the image formation medium to produce an image formation medium assembly.
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公开(公告)号：US20220371339A1
公开(公告)日：2022-11-24
申请号：US17761370
申请日：2019-10-29
发明人： Rajesh Kelekar , Napoleon J. Leoni , Omer Gila
IPC分类号： B41J11/00
摘要： An image formation device includes at least one frame portion supporting at least one emitter to emit airborne charges, at least one radiation element to emit radiation, and a fluid ejection device to deposit droplets of ink particles within a non-aqueous fluid carrier onto a substrate. Upon relative movement between the at least one frame portion and the substrate, the emitted airborne charges are to electrostatically fix, and the at least one radiation element is to emit radiation to cause at least further fixation of, the deposited particles relative to the substrate.
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