公开(公告)号：US20180029127A1

公开(公告)日：2018-02-01

申请号：US15655298

申请日：2017-07-20

申请人： Hou T. Ng ,  Ron Naftali ,  Christopher G. Talbot

发明人： Hou T. Ng ,  Ron Naftali ,  Christopher G. Talbot

IPC分类号： B22F3/105 ,  B29C64/135 ,  H04N5/74 ,  B29C64/171 ,  B33Y50/02 ,  G02B26/08

摘要： An additive manufacturing apparatus includes a platform, a dispenser to dispense layers of feed material on the platform, and a fusing system including an energy source to generate an energy beam having an adjustable intensity profile, an actuator to cause the energy beam to traverse across an outermost layer of feed material, and a controller coupled to the actuator and the energy source. The controller is configured to cause the energy source to adjust the intensity profile of the energy beam on the outermost layer of feed material based on a traversal velocity and/or a traversal direction of the light beam across the outermost layer of feed material.

公开(公告)号：US20180029126A1

公开(公告)日：2018-02-01

申请号：US15655229

申请日：2017-07-20

申请人： Hou T. Ng ,  Ron Naftali ,  Christopher G. Talbot

发明人： Hou T. Ng ,  Ron Naftali ,  Christopher G. Talbot

IPC分类号： B22F3/105 ,  B29C64/135 ,  H04N5/74 ,  B29C64/171 ,  B33Y50/02 ,  G02B26/08

CPC分类号： B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/135 ,  B29C64/153 ,  B29C64/171 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G02B26/08 ,  G02B26/0825 ,  H04N5/7458 ,  Y02P10/295 ,  B22F2202/11 ,  B22F2203/03 ,  B22F2203/11

摘要： An additive manufacturing apparatus includes a platform, a dispenser to dispense layers of feed material on the platform, and a fusing system to direct an energy beam to fuse at least a portion of the outermost layer of feed material. The fusing system includes an energy source to emit the energy beam, a deformable mirror to receive the energy beam and reflect the energy beam, wherein a shape of the deformable mirror defines at least in part an intensity profile of the energy beam on the outermost layer of feed material, an actuator coupled to the deformable mirror, and a controller coupled to the actuator and configured to cause the actuator to deform the shape of the deformable mirror to adjust the intensity profile of the energy beam on the outermost layer of feed material in accordance to a desired profile.

公开(公告)号：US20190105837A1

公开(公告)日：2019-04-11

申请号：US16155460

申请日：2018-10-09

申请人： Raanan Zehavi ,  Hou T. Ng ,  Nag B. Patibandla ,  Eric Ng ,  Ajey M. Joshi ,  Kashif Maqsood ,  Paul J. Steffas

发明人： Raanan Zehavi ,  Hou T. Ng ,  Nag B. Patibandla ,  Eric Ng ,  Ajey M. Joshi ,  Kashif Maqsood ,  Paul J. Steffas

IPC分类号： B29C64/329 ,  B29C64/153 ,  B29C64/209 ,  B22F3/105 ,  B29C64/245

摘要： A dispensing system for an additive manufacturing includes a powder source that contains powder to form an object, and an array of nozzles positioned at a base of the powder source over a top surface of a platen where the object is to be formed. The powder flows from the powder source through the nozzles to the top surface. A respective powder wheel in each nozzle controls a flow rate of the powder. Each wheel has multiple troughs on surface of the wheel. When a motor rotates the wheel, the troughs transport the powder through the nozzle. The rotation speed of the wheel controls the flow rate. For solid parts of the object, the wheel rotates and allows the powder to be deposited on the top surface. For empty parts of the object, the wheel remains stationary to prevent the powder from flowing to the surface.

公开(公告)号：US09657114B2

公开(公告)日：2017-05-23

申请号：US13383706

申请日：2009-07-31

申请人： Doris Pik-Yiu Chun ,  Hou T. Ng

发明人： Doris Pik-Yiu Chun ,  Hou T. Ng

IPC分类号： G03G9/00 ,  B05D3/00 ,  A61K9/16 ,  C08F2/22 ,  C08F2/44 ,  C08F292/00 ,  C09B67/08 ,  C09B67/02 ,  C09C1/56 ,  C09D7/12 ,  C09D11/037 ,  C09D11/32

CPC分类号： C08F2/22 ,  C01P2004/04 ,  C08F2/44 ,  C08F292/00 ,  C09B67/0013 ,  C09B67/0097 ,  C09C1/56 ,  C09D7/62 ,  C09D11/037 ,  C09D11/32

摘要： Methods of encapsulating particles (260) in polymer (280, 382, 384) and compositions of matter using such encapsulated particles (260). Methods include mixing particles (260) of one or more materials with one or more initial radical polymerizable monomers (265) and one or more initial charge-generating components (270) to form a first suspension of monomer-wetted particles (260/265/270), mixing the first suspension with an aqueous dispersant medium (275) to form a second suspension, adding one or more initial reaction initiators to at least one of the first suspension and the second suspension, subjecting the second suspension to homogenization sufficient to form a stable submicron emulsion having an aqueous continuous phase (275), and reacting available radical polymerizable monomers (265) of the emulsion to encapsulate the particles (260) in one or more layers of polymer (280, 382, 384) and to incorporate ionic species from available charge-generating components (270).

公开(公告)号：US20170072643A1

公开(公告)日：2017-03-16

申请号：US15265631

申请日：2016-09-14

申请人： Hou T. Ng ,  Raanan Zehavi ,  Nag B. Patibandla

发明人： Hou T. Ng ,  Raanan Zehavi ,  Nag B. Patibandla

IPC分类号： B29C67/00

CPC分类号： B29C64/153 ,  B22F3/003 ,  B22F3/1055 ,  B22F2003/1056 ,  B29C64/165 ,  B29C64/20 ,  B29C64/205 ,  B29C64/209 ,  B29C64/232 ,  B29C64/236 ,  B29C64/264 ,  B29C64/295 ,  B29C64/307 ,  B29C64/336 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  Y02P10/295

摘要： An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a support that is movable along a vertical axis, an actuator to move the support along the vertical axis, a dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source configured to fuse at least a portion of the feed material, and a controller. The dispenser and energy source are mounted on the support over the platen such that motion of the support along the vertical axis moves the dispenser and energy source together toward or away from the top surface of the platen. The controller is coupled to the actuator, dispenser and energy source and configured to cause the actuator to move the support to lift the dispenser and actuator away from the top surface after each of the plurality of successive layers is delivered.

摘要翻译： 添加剂制造系统包括具有顶表面以支撑正在制造的物体的台板，可沿着垂直轴线移动的支撑件，沿垂直轴线移动支撑件的致动器，分配器，以输送多个连续的进料层 材料在压板上，被配置为熔化进料的至少一部分的能量源和控制器。 分配器和能量源安装在压板上的支撑件上，使得支撑件沿着垂直轴的运动将分配器和能量源一起朝向或远离压板的顶表面移动。 控制器耦合到致动器，分配器和能量源，并且被配置为使得致动器移动支撑件，以在输送多个连续的层中的每一个之后使分配器和致动器从顶表面离开。

公开(公告)号：US20160368055A1

公开(公告)日：2016-12-22

申请号：US15186277

申请日：2016-06-17

申请人： Bharath Swaminathan ,  Ajey M. Joshi ,  Nag B. Patibandla ,  Hou T. Ng ,  Ashavani Kumar ,  Eric Ng ,  Bernard Frey ,  Kasiraman Krishnan

发明人： Bharath Swaminathan ,  Ajey M. Joshi ,  Nag B. Patibandla ,  Hou T. Ng ,  Ashavani Kumar ,  Eric Ng ,  Bernard Frey ,  Kasiraman Krishnan

IPC分类号： B22F3/105 ,  B33Y30/00 ,  B23K26/16 ,  B22F3/10 ,  B23K26/342 ,  B33Y10/00 ,  B33Y50/02

CPC分类号： B22F3/1055 ,  B22F2003/1057 ,  B23K26/16 ,  B23K26/342 ,  B23K2103/05 ,  B23K2103/08 ,  B23K2103/14 ,  B23K2103/26 ,  B29C64/153 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295

摘要： A method of additive manufacturing include delivering at least one layer by either depositing a uniform layer of powder on a support and then removing a portion of the layer with a roller with a surface having spatially controlled electrostatic charge, or by depositing powder onto the surface of the roller and moving the roller relative to a support such that the spatially controllable electrostatic charge on the surface of the roller causes transfer of a corresponding portion of the powder from the roller onto the support or an underlying layer.

摘要翻译： 添加剂制造的方法包括通过在支撑体上沉积均匀的粉末层，然后用具有空间控制静电荷的表面的辊去除一部分层，或通过将粉末沉积在 辊子并相对于支撑件移动辊子，使得辊子表面上的空间可控静电电荷使得相应部分的粉末从辊转移到支撑件或下层上。

公开(公告)号：US09329516B2

公开(公告)日：2016-05-03

申请号：US14234173

申请日：2011-07-26

申请人： Hou T. Ng ,  Sivapackia Ganapathiappan ,  Albert Teishev

发明人： Hou T. Ng ,  Sivapackia Ganapathiappan ,  Albert Teishev

IPC分类号： G03G9/13 ,  G03G9/087 ,  G03G9/09 ,  G03G9/125 ,  G03G9/08 ,  G03G15/10 ,  G03G9/12

CPC分类号： G03G9/131 ,  G03G9/0804 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/0928 ,  G03G9/12 ,  G03G9/125 ,  G03G9/13 ,  G03G9/132 ,  G03G15/104

摘要： A deinkable liquid toner is disclosed herein. The deinkable liquid toner includes a non-polar carrier fluid, a styrene-alkyl acrylate, and a colorant. The styrene-alkyl acrylate has a glass transition temperature ranging from about 65 C to about 100 C. A method for making the deinkable liquid toner and a printing system are also disclosed herein.

摘要翻译： 本文公开了可脱墨液体调色剂。 脱墨液体调色剂包括非极性载体流体，苯乙烯 - 丙烯酸烷基酯和着色剂。 苯乙烯 - 丙烯酸烷基酯的玻璃化转变温度为约65℃至约100℃。本文还公开了制造可脱墨液体调色剂和印刷系统的方法。

公开(公告)号：US20150071665A1

公开(公告)日：2015-03-12

申请号：US14391137

申请日：2012-07-31

申请人： Quang P. Lam ,  Doris Chun ,  Hou T. Ng

发明人： Quang P. Lam ,  Doris Chun ,  Hou T. Ng

IPC分类号： G03G15/10

CPC分类号： G03G15/105 ,  B41P2200/21 ,  G01N27/02 ,  G03G15/0851 ,  G03G21/0011

摘要： Techniques to determine concentration parameters of conductive liquid electrophoretic (LEP) inks are illustrated herein. In an example, a layer of conductive LEP ink is formed on a developer roller using electrostatic forces acting on the conductive LEP ink. A current is generated in response to a voltage between a measurement electrode and a developer roller. The current flows through the conductive LEP ink layer.

摘要翻译： 确定导电液体电泳（LEP）油墨的浓度参数的技术在本文中示出。 在一个示例中，使用作用在导电LEP油墨上的静电力在显影辊上形成导电LEP油墨层。 响应于测量电极和显影辊之间的电压而产生电流。 电流流过导电LEP油墨层。

公开(公告)号：US08932791B2

公开(公告)日：2015-01-13

申请号：US13982215

申请日：2011-01-31

申请人： Doris Pik-Yiu Chun ,  Hou T. Ng ,  Albert Teishev

发明人： Doris Pik-Yiu Chun ,  Hou T. Ng ,  Albert Teishev

IPC分类号： G03G9/12 ,  G03G9/08 ,  G03G9/125 ,  G03G9/13 ,  G03G9/135 ,  C09D11/03

CPC分类号： G03G9/0804 ,  C09D11/03 ,  G03G9/122 ,  G03G9/125 ,  G03G9/13 ,  G03G9/135

摘要： A liquid electrophotographic ink is disclosed herein. One example of the liquid electrophotographic ink includes a non-polar carrier liquid; pigmented toner particles; a charge director; and polymer resin encapsulated metal oxide nanoparticles. A method for making the liquid electrophotographic ink is also disclosed herein.

摘要翻译： 本文公开了液体电子照相油墨。 液体电子照相油墨的一个实例包括非极性载体液体; 着色调色剂颗粒; 收费主任; 和聚合物树脂封装的金属氧化物纳米颗粒。 本文还公开了制备液体电子照相油墨的方法。

公开(公告)号：US08926081B2

公开(公告)日：2015-01-06

申请号：US13379970

申请日：2009-06-30

申请人： Sivapackia Ganapathiappan ,  Howard S. Tom ,  Hou T. Ng

发明人： Sivapackia Ganapathiappan ,  Howard S. Tom ,  Hou T. Ng

IPC分类号： B41J2/01 ,  C09D7/12 ,  B41J2/21 ,  B41M7/00 ,  C09D5/02 ,  C08K3/22 ,  C08K3/36 ,  C08K9/08 ,  C08K9/10

CPC分类号： C09D7/1225 ,  B41J2/2107 ,  B41M7/0027 ,  C08K3/22 ,  C08K3/36 ,  C08K9/08 ,  C08K9/10 ,  C09D5/028 ,  C09D7/62 ,  C09D7/67 ,  C09D7/68

摘要： The present disclosure is drawn to a nanoparticle containing overcoat composition for use in ink jet printing. The composition can include a liquid vehicle and a composite latex particulate. The composite latex particulate can include inorganic nanoparticles at least partially encapsulated by a polymer. The inorganic nanoparticles can be silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof. The inorganic nanoparticles can comprise from about 1 wt % to about 20 wt % of the composite latex particulate. The overcoat composition can be used to improve the properties of ink-jetted images.

摘要翻译： 本公开涉及用于喷墨印刷的含纳米颗粒的外涂层组合物。 组合物可以包括液体载体和复合胶乳颗粒。 复合胶乳颗粒可以包括至少部分地被聚合物包封的无机纳米颗粒。 无机纳米颗粒可以是二氧化硅，二氧化钛，氧化铝，氧化锌，硅酸盐，铟和锡的氧化物，以及它们的组合。 无机纳米颗粒可以包含约1重量％至约20重量％的复合胶乳颗粒。 外涂层组合物可用于改善喷墨图像的性质。