Patents by Inventor Stephen Demai
Stephen Demai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12125134Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: GrantFiled: April 4, 2023Date of Patent: October 22, 2024Assignee: Stratasys Ltd.Inventors: Blake Zachary Courter, Stephen Demai
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Publication number: 20230256682Abstract: A method of rendering data for addressable dispensing of material over a working surface, comprises: receiving input image data arranged grid-wise over a plurality of picture-elements; generating an initial map describing a distance field and having a plurality of map-elements each storing distance information corresponding to one picture-element; for each picture-element of at least a portion of the picture-elements: linearly scanning the map independently along a first axis and along a second axis, and updating a respective map-element based on values of map-elements visited during the scan. The distance field can include distances defined perpendicularly to the working surface.Type: ApplicationFiled: April 28, 2023Publication date: August 17, 2023Applicant: Stratasys Ltd.Inventors: Nur ARAD, Ore SHTALRID, Yossi KOREN, Blake Zachary COURTER, Stephen DEMAI
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Publication number: 20230252720Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: ApplicationFiled: April 4, 2023Publication date: August 10, 2023Applicant: Stratasys Ltd.Inventors: Blake Zachary COURTER, Stephen DEMAI
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Patent number: 11701831Abstract: A method of rendering data for addressable dispensing of material over a working surface, comprises: receiving input image data arranged grid-wise over a plurality of picture-elements; generating an initial map describing a distance field and having a plurality of map-elements each storing distance information corresponding to one picture-element; for each picture-element of at least a portion of the picture-elements: linearly scanning the map independently along a first axis and along a second axis, and updating a respective map-element based on values of map-elements visited during the scan. The distance field can include distances defined perpendicularly to the working surface.Type: GrantFiled: August 27, 2018Date of Patent: July 18, 2023Assignee: Stratasys Ltd.Inventors: Nur Arad, Ore Shtalrid, Yossi Koren, Blake Zachary Courter, Stephen Demai
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Patent number: 11625889Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: GrantFiled: May 25, 2021Date of Patent: April 11, 2023Assignee: Stratasys Ltd.Inventors: Blake Zachary Courter, Stephen Demai
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Publication number: 20210279944Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: ApplicationFiled: May 25, 2021Publication date: September 9, 2021Applicant: Stratasys Ltd.Inventors: Blake Zachary COURTER, Stephen DEMAI
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Patent number: 11024075Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: GrantFiled: October 6, 2019Date of Patent: June 1, 2021Assignee: Stratasys Ltd.Inventors: Blake Zachary Courter, Stephen Demai
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Publication number: 20200346411Abstract: A method of rendering data for addressable dispensing of material over a working surface, comprises: receiving input image data arranged grid-wise over a plurality of picture-elements; generating an initial map describing a distance field and having a plurality of map-elements each storing distance information corresponding to one picture-element; for each picture-element of at least a portion of the picture-elements: linearly scanning the map independently along a first axis and along a second axis, and updating a respective map-element based on values of map-elements visited during the scan. The distance field can include distances defined perpendicularly to the working surface.Type: ApplicationFiled: August 27, 2018Publication date: November 5, 2020Applicant: Stratasys Ltd.Inventors: Nur ARAD, Ore SHTALRID, Yossi KOREN, Blake Zachary COURTER, Stephen DEMAI
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Publication number: 20200035015Abstract: A system for generating slice data for additive manufacturing, comprises a graphics processing unit (GPU) that receives a digital model of an object in a three-dimensional build space defined over a plurality of slices, computes a three-dimensional signed distance field over voxels in the build space, assigns a building material to each voxel based on a respective distance field value, and generates slice data output pertaining to the building material assignments for each slice. The slice data output can be used for printing the object in layers corresponding to the slices. The distance field comprises one or more vector having a vertical component with respect to the slices.Type: ApplicationFiled: October 6, 2019Publication date: January 30, 2020Applicant: Stratasys Ltd.Inventors: Blake Zachary COURTER, Stephen DEMAI
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Publication number: 20180240263Abstract: A method includes selecting a voxel from a three-dimensional build space and for the selected voxel, determining a distance field value relative to a digital model of a 3D part in the three-dimensional build space. The distance field value is then used to select at least one material selection rule and a feature of the voxel is applied to the at least one material selection rule to identify a material designation for the voxel. The material designation indicates no material is to be placed at the voxel when the material selection rule identifies no material for the voxel and the material designation indicates at least one material is to be placed at the voxel when the at least one material selection rule identifies the at least one material for the voxel. The material designation for the voxel is then output for use in printing the 3D part using an additive manufacturing system.Type: ApplicationFiled: February 24, 2017Publication date: August 23, 2018Inventors: Blake Zachary Courter, Stephen Demai