Stereolithographic Shaping From Liquid Precursor Patents (Class 264/401)
  • Patent number: 10435185
    Abstract: Items may be packaged for shipping or storage using additive manufacturing techniques, also known as three dimensional (3-D) printing. Packages made by such processes may be referred to as 3-D printed packages and may include packing material printed at least partially around the item(s) and/or an outer cover printed about at least a portion of an exterior of the packing material and/or the item(s). A packaging system may include a 3-D printer and a computing device communicatively coupled to the 3-D printer. The computing device may obtain a packaging model describing a package for one or more items. A print module of the computing device may include instructions to print the package at least partially about the item(s) according to the packaging model.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 8, 2019
    Inventors: David A. Divine, David S. Thompson, Shay C. Colson
  • Patent number: 10424573
    Abstract: A packaging process of an electronic component is provided. By the packaging process of the disclosure, the electronic component is grinded by the back grinding process. Consequently, thickness of the electronic component may be reduced to less than or equal to 50 ?m. The packaging process may achieve ultra-thin thickness and reduce the space of the power module. Moreover, the packaging process forms the contact pads with drilling process and grinding process without photolithography process. Consequently, the packaging process is advantageous because of lower cost and uniform thickness of the contact pads.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 24, 2019
    Assignee: DELTA ELECTRONICS INT'L (SINGAPORE) PTE LTD
    Inventor: Beng Beng Lim
  • Patent number: 10421233
    Abstract: The present disclosure provides a system for printing a three-dimensional object. The system may comprise an open platform configured to hold a film of a viscous liquid comprising a photoactive resin. The open platform may comprise a print window. The system may comprise a deposition head comprising a nozzle in fluid communication with a source of the viscous liquid. The deposition head may be configured to move across the platform and deposit the film over the print window. The system may use multiple viscous liquids. The system may comprise an optical source that provides light through the print window for curing at least a portion of the film of the viscous liquid. The system may comprise a controller operatively coupled to direct movement of the deposition head and projection of the light, thereby printing at least a portion of the 3D object.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 24, 2019
    Assignee: HOLO, INC.
    Inventors: Pierre Lin, Jonathan Pomeroy, Arian Aghababaie, Brian Adzima
  • Patent number: 10414090
    Abstract: A method and apparatus for making a three-dimensional object by solidifying a photohardenable material are shown and described. A photohardening inhibitor is admitted into a surface of a photohardenable material through a flexible film to create a “non-solidification zone” where little or no solidification occurs. The non-solidification zone prevents the exposed surface of the photohardenable material from solidifying in contact with the film. The inhibitor tends to cause the film to deform along the build axis, thereby creating a non-planar interface between the photohardenable material and the film, which distorts the resulting three-dimensional object. An apparatus is provided to stabilize the flexible film and eliminate or minimize such deformation.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 17, 2019
    Assignee: Global Filtration Systems
    Inventors: Ali El-Siblani, Alexandr Shkolnik, Andrius Raulinaitis
  • Patent number: 10414066
    Abstract: A slurry dispense system utilizes a buffer chamber to release the pressure from the supply pump, and buffer the irregular flow rate of the supply pump. It also utilizes a positive displacement pump to control the dispense flow. With the help of the buffer chamber, the positive displacement pump is able to provide a constant flow rate, and can be accurately controlled. A high resolution and a high speed can be achieved at the same time.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: September 17, 2019
    Inventor: Jing Zhang
  • Patent number: 10415961
    Abstract: A measuring apparatus for measuring a winding angle of a carbon fiber wound on a base material with respect to the base material includes a light source configured to radiate light to a target region on the base material serving as a measuring target for the winding angle, a diffusion plate configured to suppress linear transmission of reflected light from the target region and form an image constituted by the reflected light, an imaging device configured to capture the image formed by the diffusion plate to obtain a captured image, and a winding angle calculation unit configured to calculate an angle formed between a direction perpendicular to a longitudinal direction of an image constituted by the reflected light in the captured image and a reference direction in the base material as the winding angle.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: September 17, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshimasa Hakozaki
  • Patent number: 10406755
    Abstract: The invention is a method for the validation of one or more consumable elements (4) suited to be installed on a stereolithography machine (2) for printing three-dimensional objects through a stereolithography process. The method includes the steps of installing a consumable element (4) provided with a readable univocal identification code (ID) on the stereolithography machine (2), reading said univocal identification code (ID), verifying that the univocal identification code (ID) is authentic and active by making a comparison against a predefined list (L) of authentic and active identification codes and enabling the use of the consumable element (4) on the stereolithography machine (2) in the case where the corresponding univocal identification code (ID) is authentic and active.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 10, 2019
    Assignee: DWS SRL
    Inventor: Ettore Maurizio Costabeber
  • Patent number: 10399309
    Abstract: An antireflection film includes: a substrate; and an antireflection layer formed with a composition containing metal oxide particles having surface hydroxyl groups as particles for forming a moth eye structure, and two compounds having (meth)acryloyl groups, where the antireflection layer contains a binder resin including at least one of a structure derived from the two (meth)acryloyl groups, and the moth eye structure has an irregular shape formed with the metal oxide particles on a surface on a side opposite to an interface on the substrate side, and in the irregular shape of the antireflection layer, B/A is a ratio between a distance A between peaks of adjacent convex portions and a distance B between a center between peaks of the adjacent convex portions and a concave portion is 0.5 or greater.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 3, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Miho Asahi, Ayako Matsumoto, Shuntaro Ibuki, Makoto Uchimura
  • Patent number: 10399272
    Abstract: Described herein are three-dimensional (3D) printer systems and methods, which may provide for “continuous pull” 3D printing. An illustrative 3D printer includes: a resin container, a base plate, a light source arranged below the resin container and operable to cure resin in the resin container; and a control system operable to: (a) receive model data specifying a 3D structure; (b) determine 2D images corresponding to layers of the 3D object; and (c) generate control signals to operate the light source and the base plate to sequentially form the layers of the 3D object onto the base plate, wherein the base plate moves a formed portion of the 3D object upward after formation of each layer, and wherein at least a surface of a formed portion of the 3D object remains in contact with the resin in the resin container throughout the formation of the layers of the 3D object.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: September 3, 2019
    Assignee: X Development LLC
    Inventors: Jeff Linnell, Jonathan Proto, Brandon Kruysman, Steven Moody
  • Patent number: 10391708
    Abstract: A method for producing a three-dimensional object by layer by layer solidifying of a material which is solidifiable under the action of radiation is provided. The method makes use of exposure masks. In order to form each object layer to be solidified of the object in a construction plane, there is generated at least one, preferably a single, digital exposure mask by means of which the radiation is selectively projected into the construction plane. For each exposure mask, according to the object layer to be solidified, a single 2-bit bitmap is calculated which assigns either the bit-value “transparent” or the bit-value “non-transparent” to each pixel of the exposure mask. In addition, an improved exposure mask generating apparatus and an improved device for producing a three-dimensional object are proposed.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 27, 2019
    Assignee: Schultheiss GmbH
    Inventors: Hendrik John, Andreas Schultheiss
  • Patent number: 10391556
    Abstract: An additive manufacturing apparatus includes: a table defining a planar worksurface having an opening therein, the opening communicating with a build enclosure having a vertically slidable build platform therein; and a first slide having a first powder transfer window therein, the first slide being moveable across the worksurface between a loading position away from the opening where the first powder transfer window is exposed to receive powder, and a supply position where the first powder transfer window is aligned over the opening.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventor: David Richard Barnhart
  • Patent number: 10391711
    Abstract: A method of forming the body portion of a three-dimensional object from a polymerizable liquid by the process of continuous liquid interface printing is described. The body portion has a plurality of contiguous segments, and the process includes advancing a carrier for the object away from a build surface while irradiating a build region between the carrier and build surface in a pattern of advancing and irradiating defined by an operating mode. In the present invention, the operating mode is changed at least once during the formation of the body portion for different contiguous segments of the body portion.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 27, 2019
    Assignee: Carbon, Inc.
    Inventors: Prescott Sutter, Clarissa Gutierrez, David Shirvanyants, David Moore, John Tumbleston
  • Patent number: 10392097
    Abstract: A component, including a part, comprising a honeycomb-like structure formed from at least a seamless resin-infused fiber composite material. The honeycomb-like structure includes a first plurality of honeycomb-like cells, and a second plurality of honeycomb-like cells, different than the first plurality of honeycomb-like cells.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: August 27, 2019
    Assignee: The Boeing Company
    Inventors: Doan Dinh Pham, William Brent Harlow
  • Patent number: 10384263
    Abstract: This disclosure relates to a hybrid support system for supporting an object formed by three dimensional printing. In some embodiments, a hybrid support system includes one or more volume support structures, a first volume support structure of the one or more volume support structures being coupled to a base plate and to a first portion of the object. The hybrid support system further includes a partially solidified support structure coupled to a second portion of the object. The hybrid support system further includes one or more reinforcement support structures, a first reinforcement support structure of the one or more reinforcement support structures being coupled to the base plate and to at least one of a portion of the partially solidified support structure and a third portion of the object.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 20, 2019
    Assignee: Materialise N.V.
    Inventors: Tom Craeghs, Gerald Eggers, Tom Cluckers
  • Patent number: 10359076
    Abstract: A method of forming an engineered material, for example a material for use in a bearing, is provided. The method includes forming a template polymer microlattice by disposing a perforated mask over a reservoir of ultra-violet (UV) curable resin in liquid form, conveying beams of light through the perforated mask and into the reservoir along paths, and transforming the liquid UV curable resin along the paths into a plurality of interconnected solid polymer fibers. The method further includes applying a metal material to the template polymer microlattice to form a microlattice of the metal material, and removing the template polymer microlattice from the metal microlattice. The method next includes disposing a low friction material in interstices of the metal microlattice, and sintering the low friction material disposed in the interstices of the metal microlattice.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: July 23, 2019
    Assignee: Tenneco Inc
    Inventor: David Saxton
  • Patent number: 10350823
    Abstract: A method of forming a dual cure three-dimensional object by additive manufacturing may be carried out by mixing a first precursor liquid and a second precursor liquid to produce a polymerizable liquid comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component (e.g., a second reactive component) that is different from the first component (e.g., that does not contain a cationic photoinitiator, or is further solidified by a different physical mechanism, or further reacted, polymerized or chain extended by a different chemical reaction). In the foregoing: (i?) at least one reactant of the second solidifiable component is contained in the first precursor liquid, and (ii?) at least one reactant or catalyst of the second solidifiable component is contained in the second precursor liquid. Once mixed, the three-dimensional object may be formed from the resin by a dual cure additive manufacturing process.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 16, 2019
    Assignee: Carbon, Inc.
    Inventors: Jason P. Rolland, Julia D. Cushen
  • Patent number: 10350682
    Abstract: Support structures are used in certain additive fabrication processes to permit fabrication of a greater range of object geometries. For additive fabrication processes with materials that are subsequently sintered into a final part, an interface layer is fabricated between the object and support in order to inhibit bonding between adjacent surfaces of the support structure and the object during sintering. Interface layers suitable for manufacture with an additive manufacturing system may resist the formation of bonds between a support structure and an object during subsequent sintering processes.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 16, 2019
    Assignee: Desktop Metal, Inc.
    Inventors: Jonah Samuel Myerberg, Michael Andrew Gibson, Ricardo Fulop, Matthew David Verminski, Richard Remo Fontana, Christopher Allan Schuh, Yet-Ming Chiang, Anastasios John Hart
  • Patent number: 10351819
    Abstract: Using 3D printing, a microwell is formed by providing a plurality of masks, each mask representing a cross-section of a layer of the concave structure. Progressive movement of a projection plane exposes a pre-polymer solution to polymerizing radiation modulated by the masks to define the layers of the microwell, where each layer is exposed for a non-equal exposure period as determined by a non-linear factor. In a preferred embodiment, a first portion of the masks are base layer masks, which are exposed for a longer period than subsequent exposure periods. Shapes of the microwells, which may include circular, square, annular, or other geometric shapes, and their depths, are selected to promote aggregation behavior in the target cells, which may include tumor cells and stem cells.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 16, 2019
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
    Inventors: Kolin C. Hribar, Shaochen Chen, Darren Finlay, Kristiina Vuori, Xuanyi Ma
  • Patent number: 10343335
    Abstract: Certain examples described herein relate to producing three-dimensional objects using additive manufacturing systems. These examples combine the use of material volume coverage vectors to define object data with octree data structures and models for tracking material placement error and available volumes. Material volume coverage vectors correspond to a volumes of three-dimensional objects and define a probabilistic distribution of materials available to an additive manufacturing system including combinations of said materials. In certain examples, a bottom level of the error tracking octree model is constructed to contain at least a portion of the data values for a set of obtained material volume coverage vectors. This is then used in an error distribution process to generate manufacturing control data for the additive manufacturing system.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: July 9, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jan Morovic, Peter Morovic, Jay S. Gondek
  • Patent number: 10336055
    Abstract: Systems and methods for fabricating three-dimensional objects. The system includes an optical imaging system providing a light source; a photosensitive medium adapted to change states upon exposure to a portion of the light source from the optical imaging system; a control system for controlling movement of the optical imaging system, wherein the optical imaging system moves continuously above the photosensitive medium. The method includes moving a maskless optical imaging system providing the light beam in a continuous sequence; presenting the light beam on a portion of the photosensitive medium; lowering a plate upon which the photosensitive medium resides; and applying a new layer of the photosensitive medium.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: July 2, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Suman Das, Dajun Yuan, Anirudh Rudraraju, Paul Cilino
  • Patent number: 10336052
    Abstract: A photocurable resin composition for support regions for use in photochemical fabrication by an inkjet method, which has low viscosity and outstanding photocurability, and where the support regions, formed by the photocuring, have good supporting performance and, following the end of the photochemical fabrication, can readily be removed from the main body by dissolving in water and/or by a weak external force such as a water jet. The photocurable resin composition for support regions for use in photochemical 3D fabrication by the inkjet method contains, based on the total mass of photocurable resin composition, from 2 to 20 mass % of N-hydroxyalkyl (meth) acrylamide, from 2 to 20 mass % of (meth) acryloyl morpholine, from 3 to 30 mass % of (meth) acrylate compound having at least one (meth) acryloyloxy group, from 40 to 90 mass % of polyhydroxy compound containing two or more hydroxyl groups, and from 0.1 to 5 mass % of a photo-radical polymerization initiator.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 2, 2019
    Assignee: ISQUARED GmbH
    Inventors: Jan-Michael Stepper, Tsuneo Hagiwara
  • Patent number: 10335997
    Abstract: A method and apparatus for making a three-dimensional object by solidifying a photohardenable material are shown and described. A photohardening inhibitor is admitted into a surface of a photohardenable material through a flexible film to create a “non-solidification zone” where little or no solidification occurs. The non-solidification zone prevents the exposed surface of the photohardenable material from solidifying in contact with the film. The inhibitor tends to cause the film to deform along the build axis, thereby creating a non-planar interface between the photohardenable material and the film, which distorts the resulting three-dimensional object. An apparatus is provided to stabilize the flexible film and eliminate or minimize such deformation.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 2, 2019
    Assignee: Global Filtration Systems
    Inventors: Ali El-Siblani, Alexandr Shkolnik, Andrius Raulinaitis
  • Patent number: 10338568
    Abstract: Methods and apparatus of determining a halftone scheme are described. In an example, data representing a three-dimensional object is obtained, the data comprising object model data representing the geometry of the three-dimensional object and object property data representing at least one object property of at least a portion of the object. It is determined if a halftone scheme dependent object property is specified by the object property data and a halftone scheme is determined. Data representing a portion of the object having a halftone scheme dependent object property is associated with a determined halftone scheme.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: July 2, 2019
    Inventors: Peter Morovic, Jan Morovic, Juan Manuel Garcia Reyero Vinas
  • Patent number: 10335995
    Abstract: A method of manufacturing a three-dimensional object compensates for different rates of shrinkage during curing of dissimilar materials. The compensation is achieved by ejecting the different materials with reference to the shrinkage rates of the materials to enable the materials to be at approximately a same height following curing of the materials.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 2, 2019
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Jeffrey J. Folkins
  • Patent number: 10331109
    Abstract: A three-dimensional object printer uses stereolithography to form a structure and then embed one or more objects in the structure. The printer includes a controller that operates a source of ultraviolet (UV) radiation to cure a portion of a liquid photopolymer at an interface between the liquid photopolymer and the external surface of an embedded object with reference to a meniscus formed between the liquid photopolymer and the external surface of an embedded object. The incorporation of the embedded object speeds formation of the final object and increases the durability of the final object.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 25, 2019
    Assignee: Xerox Corporation
    Inventors: Chu-Heng Liu, David A. Mantell, Barry P. Mandel, Mandakini Kanungo
  • Patent number: 10328686
    Abstract: Methods, systems, and devices are described herein for estimating a three dimensional (3D) print-time for generating a 3D object relative to one or more 3D model or printer parameters. In one aspect, at least one 3D model or printer parameter may be received for generating a 3D object by a 3D printer. Historical print-time data associated with at least one 3D model or printer parameter for generating other 3D objects may be obtained. Based on the received 3D model and printer parameters and the obtained historical print-time data, an estimated print-time for generating the 3D object by the 3D printer may be determined before slicing the 3D model by the 3D printer. In another aspect, a desired print-time for generating a 3D object may be received. One or more 3D model/print parameters may then be configured to achieve or exceed the desired print-time.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: June 25, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Kristofer N. Iverson, Lakshmi Narayana Mummidi, Parmjeet Singh, Louis Tzu Leng Hong
  • Patent number: 10328634
    Abstract: Three-dimensional objects are formed by photo-curing a liquid polymer by exposure to a radiation, which radiation (e.g., at 410 nm) is provided by a collimated light source composed of an array of light emitting diode (LED) sources, an array of baffles, and an array of lenses. The baffles limit beam widths of each individual LED source in the array of LED sources, and the array of lenses is located one focal length from said array of LED sources.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 25, 2019
    Assignee: Nexa3D Inc.
    Inventors: Gianni Zitelli, Avi N. Reichental, Luciano Tringali
  • Patent number: 10328525
    Abstract: An additive manufacturing apparatus includes: a coater including: at least one trough including a plurality of side-by-side deposition valves.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 25, 2019
    Assignee: General Electric Company
    Inventors: Shane Matthew Gillespie, Christian Xavier Stevenson, Patrick Michael Kenney, Ping Wang
  • Patent number: 10307963
    Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, facilitate creation and use of multi-material three dimensional models. In one aspect, a system includes one or more computer storage media having instructions stored thereon; and one or more data processing apparatus configured to execute the instructions to perform operations including (i) receiving input specifying different material properties of an object to be manufactured, (ii) generating from the input a three dimensional (3D) model of the object using overlapping volume representations of the different material properties of the object, wherein the overlapping volume representations employ different data formats and different resolutions, and (iii) storing the 3D model of the object for use in manufacturing the object.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: June 4, 2019
    Assignee: Autodesk, Inc.
    Inventors: Francesco Iorio, Nigel Jed Wesley Morris, Adrian Adam Thomas Butscher, Massimiliano Moruzzi
  • Patent number: 10307964
    Abstract: A three-dimensional molding method in which a step of sintering a powder layer with a laser light or an electron beam after a flat surface has been formed by sliding of a squeegee against the powder layer is repeated in a prescribed number of times, and then the periphery is cut, in order to mold both the object 1 to be molded and a support structure 2 that supports the lower side of the object 1 from below and is intended to be removed after molding, wherein in the support structure 2, the upper parts of the struts connected to the object 1 to be molded employ truncated circular conic shapes or partial truncated circular conic shapes that are reduced in diameter toward the top.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 4, 2019
    Assignees: Fukui Prefectural Government, Matsuura Machinery Corporation
    Inventors: Kazuyuki Morishita, Yuya Matsuda, Tetsushi Midorikawa
  • Patent number: 10307971
    Abstract: There are provided a support structures design device and method, a non-transitory computer readable recording medium storing a program, a structure forming apparatus, and a structure manufacturing method capable of appropriately adding the data of a support structures to the three-dimensional data of a luminal structure. The up-and-down direction of a luminal structure is determined, the core line of the luminal structure is extracted, a lowermost point of a cross section of the luminal structure by a plane perpendicular to a tangential direction at a point, which corresponds to each of a plurality of points on the core line, on a projected core line is extracted as a support point, and three-dimensional data is generated by adding the data of a support structures for supporting the support point to three-dimensional data.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: June 4, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masafumi Sagawa
  • Patent number: 10294380
    Abstract: A three-dimensional shaped article manufacturing apparatus is an apparatus for manufacturing a three-dimensional shaped article by laminating layers formed by discharging and curing inks including a curable resin.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: May 21, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Eiji Okamoto
  • Patent number: 10286578
    Abstract: A three-dimensional shaped article manufacturing apparatus is an apparatus for manufacturing a three-dimensional shaped article by laminating layers formed by discharging and curing inks including a curable resin. The apparatus comprises: a first discharge unit configured to discharge a substantive section-forming ink to a region that forms the three-dimensional shaped article; a second discharge unit configured to discharge a sacrificial layer-forming ink for forming a sacrificial layer to a region that is adjacent to a region that forms an outermost layer of the three-dimensional shaped article and on a surface side of the outermost layer; and a curing unit configured to cure the substantive section-forming ink and the sacrificial layer-forming ink. A viscoelasticity of the sacrificial layer-forming ink during curing of the substantive section-forming ink being not less than a viscoelasticity of the substantive section-forming ink during curing of the substantive section-forming ink.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Eiji Okamoto
  • Patent number: 10281904
    Abstract: The present invention relates to a method for printing a plurality of voxels of an object in a plurality of passes of a print head of a printing system over a substrate, each pass having a movement direction of the print head relative to the substrate while ejecting marking material from the print head towards the substrate, each voxel having a position in the object, the method comprising the steps of for each voxel of the object selecting a movement direction of the print head based on the position of the voxel in the object, selecting at least one pass in which the voxel will be printed, the at least one pass having a movement direction which corresponds to the selected movement direction of the print head, and printing the voxel in the selected at least one pass. The present invention also relates to a printing system configured to execute the method.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 7, 2019
    Assignee: OCE-TECHNOLOGIES B.V.
    Inventor: Cédric T. Valade
  • Patent number: 10279078
    Abstract: The invention provides articles of 3D printed biomaterials with retained physical properties and biological activity and methods of using the articles. Furthermore, the invention provides manufacturing conditions to generate 3D printed biomaterials with highly preserved biological activity.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: May 7, 2019
    Assignee: Bacterin International, Inc.
    Inventors: Daniel Cox, Dominic Denty, Helena Lovick
  • Patent number: 10265910
    Abstract: A fabrication process and apparatus for producing three-dimensional objects by depositing a first polymer layer, printing a first ink layer on to the first polymer layer, depositing a second polymer layer on to the first ink layer, and printing a second ink layer on to the second polymer layer. The deposition and printing steps may be repeated until a three-dimensional object is formed. The inks used to form at least one of the first and second ink layers may include dyes or pigments so that the three-dimensional object may be a colored three-dimensional object.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: April 23, 2019
    Assignee: RIZE INC.
    Inventor: Eugene Giller
  • Patent number: 10259041
    Abstract: Method of manufacturing a three-dimensional object of a building material by an additive layer-wise building method, wherein based on material parameters of the building material and predetermined characteristics of the object to be manufactured, an internal structure of the object having a grid structure calculated, and the three-dimensional object is manufactured with this internal structure by the additive layer-wise building method, so that it comprises the predetermined characteristics.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: April 16, 2019
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Monika Gessler, Michael Jan Galba, Johann Oberhofer
  • Patent number: 10245788
    Abstract: A method for thermal compensation during an additive manufacturing process. In some aspects, the method may include receiving, at a CNC machine, information relating to a material used in the additive manufacturing process, wherein the received information includes at least a Coefficient for Thermal Expansion (CTE) for the material. The method may further include modifying a distance of travel for a first pre-programmed tool path based on at least the Coefficient for Thermal Expansion (CTE).
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 2, 2019
    Assignee: Thermwood Corporation
    Inventor: Kenneth J. Susnjara
  • Patent number: 10245781
    Abstract: A build platform and methods of fabricating an article with such a platform in an extrusion-type additive manufacturing machine are provided. A platform body 202 includes features 204 that extend outward from the body 202. The features 204 define protrusive areas 206 and recessive areas 208 that cooperate to mechanically engage the extruded material that forms the initial layers 220 of an article when the article is being fabricated by a nozzle 12 of the additive manufacturing machine 10.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 2, 2019
    Assignee: UT-Battelle, LLC
    Inventor: Amelia M. Elliott
  • Patent number: 10246538
    Abstract: The object of the present invention is to provide a photocurable resin composition which allows obtainment of a cured product that has high concealability, while being suppressed in fading due to ultraviolet light, a cured product of the photocurable resin composition, and a method for producing a cured product. The present invention relates to a photocurable resin composition containing the following component (A) to component (D): component (A): leuco dye; component (B): photoacid generating agent; component (C): radical polymerizable compound; and component (D): ?-hydroxy acetophenone-based radical initiator which has a 5% weight loss temperature (thermal decomposition temperature) in a nitrogen atmosphere of 200° C., or higher as determined by a TGA method at a temperature increase rate, of 10° C./minute.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: April 2, 2019
    Assignee: THREE BOND CO., LTD.
    Inventors: Yuko Takeo, Naoya Otsuki
  • Patent number: 10245785
    Abstract: The present disclosure provides method and systems for printing a three-dimensional (3D) object. A method for 3D printing may comprise providing a mixture comprising (i) a polymeric precursor, (ii) a photoinitiator configured to initiate formation of a polymeric material from the polymeric precursor, and (iii) a photoinhibitor configured to inhibit the formation of the polymeric precursor. The method may comprise exposing the mixture to (i) a first light to cause the photoinitiator to initiate formation of the polymeric material, thereby to print the 3D object, and (ii) a second light to cause the photoinhibitor to inhibit the formation of the polymeric material. During printing of the 3D object, a ratio of (i) an energy of the second light sufficient to initiate formation of the polymeric material relative to (ii) an energy of the first light sufficient to initiate formation of the polymeric material may be greater than 1.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 2, 2019
    Assignee: HOLO, INC.
    Inventor: Brian Adzima
  • Patent number: 10245822
    Abstract: Methods and apparatuses for making multiple three-dimensional objects from multiple solidifiable materials are shown and described. In accordance with the method, the objects are designed with variable removable support heights along the build axis so that each object has an interface between first and second materials that is the same height from the build platform. The technique simplifies the process of producing multiple three-dimensional objects from multiple solidifiable materials which may have different build axis heights of first and second finished object sections so that the sources of solidifiable materials need only be switched once during the building of multiple objects.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 2, 2019
    Assignee: Global Filtration Systems
    Inventor: Ali El-Siblani
  • Patent number: 10239238
    Abstract: The present disclosure concerns a digital fabricating method for constructing 3D structures, comprising the following steps: (a) precursor consist of monomers and photo-initiator is introduced into reaction cell; (b) exposing the precursor to the DLP projector for several times to gain an inhomogeneous sheet; (c) swelling the sheet in solvent to gain 3D structure. The disclosure provides a simple and easy way to produce precise 3D structure.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 26, 2019
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Tao Xie, Jingjun Wu, Qian Zhao, Limei Huang
  • Patent number: 10240066
    Abstract: A method of forming a three-dimensional object of polyurethane, polyurea, or copolymer thereof is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including at least one of: (i) a blocked or reactive blocked prepolymer, (ii) a blocked or reactive blocked diisocyante, or (iii) a blocked or reactive blocked diisocyanate chain extender; (c) irradiating the build region with light through the optically transparent member to form a solid blocked polymer scaffold and advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, with the intermediate containing the chain extender; and then (d) heating or microwave irradiating the three-dimensional intermediate sufficiently to form from the three-dimen
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: March 26, 2019
    Assignee: CARBON, INC.
    Inventors: Jason P. Rolland, Kai Chen, Justin Poelma, James Goodrich, Robert Pinschmidt, Joseph M. DeSimone, Lloyd M. Robeson
  • Patent number: 10232605
    Abstract: A method of forming a three-dimensional object (17), is carried out by: (a) providing a carrier (18?) and an optically transparent member having a build surface, with the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid; (c) irradiating the build region with light through the optically transparent member to form a solid polymer from the polymerizable liquid; and (d) advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer; (e) wherein the carrier has at least one channel (32) formed therein, the method further including supplying pressurized gas into the build region through the at least one channel during at least a portion of the filling, irradiating and/or advancing steps. An apparatus for performing the method is also disclosed.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 19, 2019
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Nordstrom Kirk Phelps
  • Patent number: 10226895
    Abstract: In one embodiment of the present invention, a support structure generator creates support structures designed to buttress three-dimensional (3D) digital models during 3D printing. In operation, the support structure generator incrementally constructs a support graph that connects overhanging points included in the 3D model with support points on a horizontal ground plane or relatively flat surfaces in the 3D model. After generating the 3D model, the support structure generator translates the connections between the nodes into support posts sized to sufficiently support the connected surfaces with the minimum amount of support material. Advantageously, the support structure is noticeably sparser than conventional support structures that fill a given support region with a solid volume of support material. Consequently, the time necessary for 3D printers to fabricate the support structure of interconnected support posts is less than the time required for 3D printers to fabricate conventional support structures.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 12, 2019
    Assignee: AUTODESK, INC.
    Inventor: Ryan Michael Schmidt
  • Patent number: 10220569
    Abstract: In one embodiment of the present invention, a support structure generator creates support structures designed to buttress three-dimensional (3D) digital models during 3D printing. In operation, the support structure generator incrementally constructs a support graph that connects overhanging points included in the 3D model with support points on a horizontal ground plane or relatively flat surfaces in the 3D model. After generating the 3D model, the support structure generator translates the connections between the nodes into support posts sized to sufficiently support the connected surfaces with the minimum amount of support material. Advantageously, the support structure is noticeably sparser than conventional support structures that fill a given support region with a solid volume of support material. Consequently, the time necessary for 3D printers to fabricate the support structure of interconnected support posts is less than the time required for 3D printers to fabricate conventional support structures.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 5, 2019
    Assignee: AUTODESK, INC.
    Inventor: Ryan Michael Schmidt
  • Patent number: 10213956
    Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for three dimensional print adhesion reduction using photoinhibition include, in one aspect, a method including: moving a build plate in a vat of liquid including a photoactive resin; creating a photoinhibition layer within the liquid directly adjacent a window of the vat by directing a first light through the window into the liquid, the first light having a first wavelength selected to produce photoinhibition; and creating a solid structure on the build plate from the photoactive resin within a photoinitiation layer of the liquid by directing a second light through the window into the liquid, where the photoinitiation layer resides between the photoinhibition layer and the build plate, and the second light has a second wavelength different than the first wavelength.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 26, 2019
    Assignee: HOLO, INC.
    Inventors: Karl Willis, Brian James Adzima
  • Patent number: 10214002
    Abstract: A three dimensional printing apparatus including a tank containing a liquid forming material, a platform movably disposed in the tank to be immersed in or moved out of the liquid forming material, a curing device disposed next to the tank or the platform, and a controlling device electrically connected to the curing device and at least one of the tank and the platform is provided. An inner bottom of the tank has a first portion and a second portion in step manner, the first portion is higher than the second portion. The controlling device drives the tank and the platform to move relative to each other. A solidified layer is formed by curing the liquid forming material between the platform and the first portion and peeled off by rotating the tank relative to the platform. A three dimensional printing method is also disclosed.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 26, 2019
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventor: Bo Pang
  • Patent number: 10207452
    Abstract: A printer is configured with at least two printheads that are separated from one another in a cross-process direction by an integral multiple of printhead widths. This configuration enables parallel swaths of material to be ejected and then movement of the printheads in the cross-process direction by a distance corresponding to one or more integral numbers of the printhead width enables the area between the swaths to be completed and the area outside of the original swaths printed.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 19, 2019
    Assignee: Xerox Corporation
    Inventors: Barry P. Mandel, James L. Giacobbi, Paul J. McConville, David A. Mantell, James J. Spence, James P. Calamita