公开(公告)号：US20210069778A1

公开(公告)日：2021-03-11

申请号：US17017447

申请日：2020-09-10

Applicant: XEROX CORPORATION

Inventor： Gary D. Redding ,  Lyle G. Dingman ,  Mark A. Cellura ,  Peter M. Gulvin ,  Christopher T. Chungbin ,  Chu-Heng Liu

IPC: B22D23/00 ,  B33Y30/00 ,  B33Y99/00

Abstract: Nozzles for additive manufacturing and methods for improving wettability of the nozzles are disclosed. The nozzle may include a body having an inner surface and an outer surface. The inner surface may define an inner volume of the nozzle, and may have a water contact angle of greater than 1° and less than about 90°. The method may include subjecting the nozzle to a surface treatment. The surface treatment may include plasma treating a surface of the nozzle such that free radicals, polar functional groups, or a combination thereof are formed at the surface of the nozzle.

公开(公告)号：US10166777B2

公开(公告)日：2019-01-01

申请号：US15134949

申请日：2016-04-21

Applicant: XEROX CORPORATION

Inventor： Gary D. Redding ,  Peter J. Nystrom ,  Peter M. Gulvin ,  Mark A. Cellura

IPC: B41J2/16 ,  B41J2/14 ,  C09D11/52 ,  C09D11/30 ,  C09D11/36

Abstract: A method for forming piezoelectric transducers for inkjet printheads includes: forming at least one piezoelectric layer on a substrate; forming at least one electrode pattern by depositing a conductive material on an exposed surface of the at least one piezoelectric layer; and forming a plurality of individual piezoelectric elements from the at least one piezoelectric layer before or after the forming of the at least one electrode pattern.

公开(公告)号：US20180345670A1

公开(公告)日：2018-12-06

申请号：US15611179

申请日：2017-06-01

Applicant: Xerox Corporation ,  Brown University

Inventor： Peter J. Nystrom ,  Gary D. Redding ,  Angus Ian Kingon ,  Seunghyun Kim ,  Nicholas Mostovych

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14233 ,  B41J2/14201 ,  B41J2/161 ,  C04B35/453 ,  C04B35/475 ,  C04B2235/768

Abstract: 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.

公开(公告)号：US09802408B2

公开(公告)日：2017-10-31

申请号：US14629877

申请日：2015-02-24

Applicant: XEROX CORPORATION

Inventor： Jonathan R. Brick ,  Chad D. Freitag ,  Garry A. Jones ,  Jon G. Judge ,  David R. Koehler ,  Chad J. Slenes ,  Peter J. Nystrom ,  Gary D. Redding ,  Mark A. Cellura

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14072 ,  B41J2/1601 ,  B41J2/1626 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2002/14475 ,  B41J2202/16

Abstract: A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.

公开(公告)号：US20150246539A1

公开(公告)日：2015-09-03

申请号：US14193631

申请日：2014-02-28

Applicant: XEROX CORPORATION

Inventor： Peter J. Nystrom ,  Mark A. Cellura ,  Gary D. Redding ,  Peter M. Gulvin

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14314 ,  B41J2/16 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14491

Abstract: An electrostatic actuator for a printhead. The electrostatic actuator may include a substrate. A dielectric layer may be disposed on the substrate. An electrode layer may be disposed on the dielectric layer. A first standoff layer may be disposed at least partially on the electrode layer. A second standoff layer may be disposed at least partially on the electrode layer and at least partially on the first standoff layer. A portion of the second standoff layer disposed on the electrode layer may be removed to form one or more landing pads. A membrane may be disposed at least partially on the second standoff layer.

Abstract translation: 用于打印头的静电致动器。 静电致动器可以包括基板。 介电层可以设置在基板上。 可以在电介质层上设置电极层。 第一间隔层可以至少部分地设置在电极层上。 第二间隔层可以至少部分地设置在电极层上，并且至少部分地设置在第一间隔层上。 设置在电极层上的第二间隔层的一部分可以被去除以形成一个或多个着陆焊盘。 膜可以至少部分地设置在第二间隔层上。

公开(公告)号：US20150097897A1

公开(公告)日：2015-04-09

申请号：US14048196

申请日：2013-10-08

Applicant: XEROX CORPORATION

Inventor： Gary D. Redding ,  Mark A. Cellura ,  Peter J. Nystrom ,  Andrew W. Hays

IPC: B41J2/14 ,  B32B38/00

CPC classification number: B41J2/1433 ,  B41J2/04521 ,  B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1625 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2002/14306 ,  B41J2002/14403 ,  B41J2002/14419 ,  Y10T29/49401 ,  Y10T156/1064

Abstract: An ink jet printhead includes a nozzle plate including a nozzle, a recess in the nozzle plate, and a compliant layer that covers the recess and forms a sealed pocket that may be filled with air or another gas during use of the printhead. During actuation of a piezoelectric element during the ejection of ink from the nozzle, the sealed pocket attenuates an acoustic energy generated by the piezoelectric element, thereby reducing crosstalk to adjacent nozzles by the acoustic energy.

Abstract translation: 喷墨打印头包括喷嘴板，喷嘴板包括喷嘴，喷嘴板中的凹部，以及覆盖凹部的柔顺层，并形成在使用打印头期间填充有空气或其他气体的密封袋。 在从喷嘴喷射油墨期间在压电元件的致动期间，密封的袋减弱由压电元件产生的声能，从而通过声能减少对相邻喷嘴的串扰。

公开(公告)号：US20180337208A1

公开(公告)日：2018-11-22

申请号：US15596292

申请日：2017-05-16

Applicant: Xerox Corporation

Inventor： Joseph F. Casey ,  Gary D. Redding ,  Craig Alan Zufelt ,  Michael B. Monahan

IPC: H01L27/146 ,  H01L23/544

Abstract: A sensor chip formed from a plurality of sensor chips fabricated on a wafer, the wafer including a top surface, a bottom surface opposite the top surface and a thickness between the top and bottom surfaces, the sensor chip including an active area formed on the top surface, a first sacrificial edge including a first fiducial and a second fiducial, and a first score line formed in a first portion of the thickness on the top surface between the first sacrificial edge and the active area.

公开(公告)号：US20180177076A1

公开(公告)日：2018-06-21

申请号：US15384411

申请日：2016-12-20

Applicant: Xerox Corporation

Inventor： Roger G. Leighton ,  Mark A. Adiletta ,  Christopher D. Atwood ,  Ali R. Dergham ,  Francisco Zirilli ,  Gary D. Redding ,  Peter J. Nystrom

IPC: H05K7/20

CPC classification number: H01L23/473 ,  G02B7/1815 ,  G02B26/0833

Abstract: A cooling system comprising of a coolant manifold, a heat sink configured to fit in the coolant manifold, a plurality of cooling fins formed in the heat sink, and a coolant configured to flow through the coolant manifold to the heat sink. Diamond shaped pin fins associated with the heat sink create a series of divergent fluid paths for the cooling fluid that helps to create turbulence and improved heat transfer.

公开(公告)号：US09757900B2

公开(公告)日：2017-09-12

申请号：US14717560

申请日：2015-05-20

Applicant: XEROX CORPORATION

Inventor： Peter J. Nystrom ,  Barry P. Mandel ,  Andrew W. Hays ,  Jun Ma ,  David Allen Mantell ,  Gary D. Redding ,  Peter M. Gulvin

IPC: B29C67/00 ,  B33Y30/00

CPC classification number: B29C64/20 ,  B29C64/00 ,  B29C64/106 ,  B29C64/112 ,  B33Y30/00

Abstract: A pin actuated printhead includes an orifice through which a material is ejected, a chamber to hold the material to be ejected, a channel connecting the chamber to the orifice, and an actuated pin, to enter the orifice and to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature.

公开(公告)号：US20160339635A1

公开(公告)日：2016-11-24

申请号：US14717560

申请日：2015-05-20

Applicant: XEROX CORPORATION

Inventor： Peter J. Nystrom ,  Barry P. Mandel ,  Andrew W. Hays ,  Jun Ma ,  David Allen Mantell ,  Gary D. Redding ,  Peter M. Gulvin

IPC: B29C67/00

CPC classification number: B29C64/20 ,  B29C64/00 ,  B29C64/106 ,  B29C64/112 ,  B33Y30/00

Abstract: A pin actuated printhead includes an orifice through which a material is ejected, a chamber to hold the material to be ejected, a channel connecting the chamber to the orifice, and an actuated pin, to enter the orifice and to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature.

Abstract translation: 引脚致动的打印头包括一个孔，材料通过该孔喷出，用于保持要喷射的材料的腔室，将腔室连接到孔口的通道和一个致动销，以进入孔口并从孔口喷出材料 。 打印头被配置为在升高的温度下喷射粘度为10,000cP或更高的材料。