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    SYSTEMS, DEVICES, AND METHODS FOR PRINTING ON THREE-DIMENSIONAL OBJECTS
    31.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR PRINTING ON THREE-DIMENSIONAL OBJECTS 审中-公开

    公开(公告)号：US20190294048A1

    公开(公告)日：2019-09-26

    申请号：US16423529

    申请日：2019-05-28

    Applicant: Massachusetts Institute of Technology ,  The Regents of the University of Michigan

    Inventor： Anastasios John Hart ,  Christopher Ryan Oliver ,  Adam Gregory Stevens ,  Jieyuan Wu ,  Chad Robert Archer

    IPC: G03F7/20

    Abstract: Systems, devices, and methods for printing on surfaces of three-dimensional objects are provided. The systems, devices, and methods allow for images, and three-dimensional structures, to be printed onto a surface of a three-dimensional object. The surface of the three-dimensional object can have many different shapes, including an arbitrary or non-uniform shape having multiple curves. In one exemplary embodiment, the method includes associating a pattern of polygons with a surface of a three-dimensional object and then scaling a pattern of polygons associated with an image to be printed onto the surface with the pattern of polygons associated with the surface. One or more polygons of the scaled pattern of polygons are then progressively projected onto the surface, and a photosensitive material associated with the surface is cured to set projected image portion on the surface. Systems, devices, and other methods for printing onto surfaces of three-dimensional objects are also provided.

    Nanostructure-reinforced composite articles and methods
    32.
    发明授权
    Nanostructure-reinforced composite articles and methods 有权

    公开(公告)号：US10399316B2

    公开(公告)日：2019-09-03

    申请号：US13679371

    申请日：2012-11-16

    Applicant: Massachusetts Institute of Technology

    Inventor： Brian L. Wardle ,  Anastasios John Hart ,  Enrique J. Garcia ,  Alexander H. Slocum

    IPC: B32B37/02 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C08J5/00 ,  D01F9/127 ,  D01F9/133 ,  C01B32/162 ,  C01B32/18

    Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

    SYSTEMS, DEVICES, AND METHODS FOR PRINTING ON THREE-DIMENSIONAL OBJECTS
    34.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR PRINTING ON THREE-DIMENSIONAL OBJECTS 审中-公开
    用于打印三维对象的系统，设备和方法

    公开(公告)号：US20160147153A1

    公开(公告)日：2016-05-26

    申请号：US14953287

    申请日：2015-11-27

    Applicant: The Regents of the University of Michigan ,  Massachusetts Institute of Technology

    Inventor： Anastasios John Hart ,  Christopher Ryan Oliver ,  Adam Gregory Stevens ,  Jieyuan Wu ,  Chad Robert Archer

    IPC: G03F7/20

    CPC classification number: G03F7/2051

    Abstract: Systems, devices, and methods for printing on surfaces of three-dimensional objects are provided. The systems, devices, and methods allow for images, and three-dimensional structures, to be printed onto a surface of a three-dimensional object. The surface of the three-dimensional object can have many different shapes, including an arbitrary or non-uniform shape having multiple curves. In one exemplary embodiment, the method includes associating a pattern of polygons with a surface of a three-dimensional object and then scaling a pattern of polygons associated with an image to be printed onto the surface with the pattern of polygons associated with the surface. One or more polygons of the scaled pattern of polygons are then progressively projected onto the surface, and a photosensitive material associated with the surface is cured to set projected image portion on the surface. Systems, devices, and other methods for printing onto surfaces of three-dimensional objects are also provided.

    Abstract translation: 提供了用于在三维物体表面上打印的系统，设备和方法。 系统，装置和方法允许将图像和三维结构打印在三维物体的表面上。 三维物体的表面可以具有许多不同的形状，包括具有多个曲线的任意或不均匀的形状。 在一个示例性实施例中，该方法包括将多边形的图案与三维对象的表面相关联，然后将与要打印的图像相关联的多边形图案与与表面相关联的多边形图案缩放到表面上。 一个或多个多边形的缩放图案的多边形然后逐渐投影到表面上，并且与表面相关联的感光材料固化以将投影图像部分设置在表面上。 还提供用于打印到三维物体的表面上的系统，装置和其它方法。

    ALKYNE-ASSISTED NANOSTRUCTURE GROWTH
    35.
    发明申请
    ALKYNE-ASSISTED NANOSTRUCTURE GROWTH 有权
    ALKYNE辅助的NANOSTRUCTURE GROWTH

    公开(公告)号：US20140134093A1

    公开(公告)日：2014-05-15

    申请号：US13975745

    申请日：2013-08-26

    Applicant: Massachusetts Institute of Technology

    Inventor： Desiree L. Plata ,  Philip S. Gschwend ,  Anastasios John Hart ,  Eric R. Meshot ,  Christopher M. Reddy

    IPC: C01B31/02

    CPC classification number: C01B31/0226 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/16 ,  C01B32/18

    Abstract: The present invention relates to the formation and processing of nanostructures including nanotubes. Some embodiments provide processes for nanostructure growth using relatively mild conditions (e.g., low temperatures). In some cases, methods of the invention may improve the efficiency (e.g., catalyst efficiency) of nanostructure formation and may reduce the production of undesired byproducts during nanostructure formation, including volatile organic compounds and/or polycylic aromatic hydrocarbons. Such methods can both reduce the costs associated with nanostructure formation, as well as reduce the harmful effects of nanostructure fabrication on environmental and public health and safety.

    Abstract translation: 本发明涉及包括纳米管的纳米结构的形成和加工。 一些实施方案使用相对温和的条件（例如低温）提供纳米结构生长的方法。 在一些情况下，本发明的方法可以提高纳米结构形成的效率（例如，催化剂效率），并且可以减少纳米结构形成期间不期望的副产物的产生，包括挥发性有机化合物和/或多环芳烃。 这些方法既可降低与纳米结构形成相关的成本，又能减少纳米结构制造对环境和公共卫生与安全的有害影响。

    Spatial porosity and composition control in additive manufacturing
    38.
    发明授权
    Spatial porosity and composition control in additive manufacturing 有权

    公开(公告)号：US11577317B2

    公开(公告)日：2023-02-14

    申请号：US16513702

    申请日：2019-07-16

    Applicant: Massachusetts Institute of Technology

    Inventor： Anastasios John Hart ,  Ryan Wade Penny ,  Martin C. Feldmann ,  Jonathan S. Gibbs ,  Stuart P. Baker

    IPC: B22F10/20 ,  B22F10/30

    Abstract: Disclosed are systems, devices, and methods for additive manufacturing that allow for control of composition and/or porosity of components being manufactured. More particularly, in exemplary embodiments, a secondary material can be used in conjunction with a primary feedstock material in a spatially controlled manner during an additive manufacturing process to control a composition of materials and/or porosity of a manufactured component. Systems, devices, and methods for additive manufacturing are also disclosed that allow for control of a pressure of an atmosphere surrounding a build surface during an additive manufacturing process. More particularly, a pressure of an atmosphere surrounding a build surface can be raised to a pressure greater than standard atmospheric pressure. Various features of the exemplary embodiments of the systems, devices, and methods disclosed can be used together to further control for composition and/or porosity and quality of a manufactured part.

    Nanostructure-reinforced composite articles and methods
    39.
    发明授权
    Nanostructure-reinforced composite articles and methods 有权

    公开(公告)号：US11458718B2

    公开(公告)日：2022-10-04

    申请号：US17163936

    申请日：2021-02-01

    Applicant: Massachusetts Institute of Technology

    Inventor： Brian L. Wardle ,  Anastasios John Hart ,  Enrique J. Garcia ,  Alexander H. Slocum

    IPC: B32B37/02 ,  C01B32/162 ,  C01B32/18 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C08J5/00 ,  D01F9/127 ,  D01F9/133

    Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

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