Patents by Inventor Tewodros Mengesha
Tewodros Mengesha 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: 11808999Abstract: A passive optical alignment coupling between an optical connector having a first two-dimensional planar array of alignment features and a foundation having a second two-dimensional planar array of alignment features. One of the arrays is a network of orthogonally intersecting longitudinal grooves defining an array of discrete protrusions that are each in a generally pyramidal shape with a truncated top separated from one another by the orthogonally intersecting longitudinal grooves, and the other array is a network of longitudinal cylindrical protrusions. The cylindrical protrusions are received in the grooves, with protrusion surfaces of the cylindrical protrusions in contact with groove surfaces and the top of the discrete protrusions contacting the surface bound by the cylindrical protrusions.Type: GrantFiled: November 11, 2022Date of Patent: November 7, 2023Assignee: Senko Advanced Components, Inc.Inventors: Robert Ryan Vallance, Yang Chen, Tewodros Mengesha
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Publication number: 20230076055Abstract: A passive optical alignment coupling between an optical connector having a first two-dimensional planar array of alignment features and a foundation having a second two-dimensional planar array of alignment features. One of the arrays is a network of orthogonally intersecting longitudinal grooves defining an array of discrete protrusions that are each in a generally pyramidal shape with a truncated top separated from one another by the orthogonally intersecting longitudinal grooves, and the other array is a network of longitudinal cylindrical protrusions. The cylindrical protrusions are received in the grooves, with protrusion surfaces of the cylindrical protrusions in contact with groove surfaces and the top of the discrete protrusions contacting the surface bound by the cylindrical protrusions.Type: ApplicationFiled: November 11, 2022Publication date: March 9, 2023Inventors: Robert Ryan VALLANCE, Yang CHEN, Tewodros MENGESHA
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Patent number: 11500166Abstract: A passive optical alignment coupling between an optical connector having a first two-dimensional planar array of alignment features and a foundation having a second two-dimensional planar array of alignment features. One of the arrays is a network of orthogonally intersecting longitudinal grooves defining an array of discrete protrusions that are each in a generally pyramidal shape with a truncated top separated from one another by the orthogonally intersecting longitudinal grooves, and the other array is a network of longitudinal cylindrical protrusions. The cylindrical protrusions are received in the grooves, with protrusion surfaces of the cylindrical protrusions in contact with groove surfaces and the top of the discrete protrusions contacting the surface bound by the cylindrical protrusions.Type: GrantFiled: February 3, 2021Date of Patent: November 15, 2022Assignee: SENKO ADVANCED COMPONENTS, INC.Inventors: Robert Ryan Vallance, Yang Chen, Tewodros Mengesha
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Publication number: 20210239920Abstract: A passive optical alignment coupling between an optical connector having a first two-dimensional planar array of alignment features and a foundation having a second two-dimensional planar array of alignment features. One of the arrays is a network of orthogonally intersecting longitudinal grooves defining an array of discrete protrusions that are each in a generally pyramidal shape with a truncated top separated from one another by the orthogonally intersecting longitudinal grooves, and the other array is a network of longitudinal cylindrical protrusions. The cylindrical protrusions are received in the grooves, with protrusion surfaces of the cylindrical protrusions in contact with groove surfaces and the top of the discrete protrusions contacting the surface bound by the cylindrical protrusions.Type: ApplicationFiled: February 3, 2021Publication date: August 5, 2021Inventors: Robert Ryan VALLANCE, Yang CHEN, Tewodros MENGESHA
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Patent number: 10413953Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: GrantFiled: October 5, 2017Date of Patent: September 17, 2019Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, Yongsheng Zhao, Matthew Gean, Tewodros Mengesha, Rand D. Dannenberg
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Publication number: 20180290195Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: ApplicationFiled: October 5, 2017Publication date: October 11, 2018Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, Yongsheng ZHAO, Matthew GEAN, Tewodros MENGESHA, Rand D. DANNENBERG
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Patent number: 9782814Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: GrantFiled: May 15, 2015Date of Patent: October 10, 2017Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Shuhe Li, Robert Ryan Vallance, Michael K. Barnoski, Yongsheng Zhao, Matthew Gean, Tewodros Mengesha, Rand D. Dannenberg
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Publication number: 20160016218Abstract: A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.Type: ApplicationFiled: May 15, 2015Publication date: January 21, 2016Inventors: Shuhe LI, Robert Ryan VALLANCE, Michael K. BARNOSKI, Yongsheng ZHAO, Matthew GEAN, Tewodros MENGESHA, Rand D. DANNENBERG
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Patent number: 9091833Abstract: A cable retention structure defining a castellated fiber cable clamping surface. The castellated surface has a series of alternating small and large cavities distributed along the axial direction. The small cavities are sized such that when the castellated surface is pressed against the buffer jacket exterior of the fiber cable, the small cavities will be able to clamp the fiber cable jacket within its full dimensional tolerance range. The large cavities are sized to provide sufficient clearance to accommodate the relatively soft material of the cable jacket which cannot be accommodated by the small cavities. The cable jacket is securely held by the retention structure to prevent slipping. Accordingly, fiber cables having buffer jackets with large dimensional variations can still be securely retained by the castellated retention structure in accordance with the present invention.Type: GrantFiled: November 2, 2012Date of Patent: July 28, 2015Assignee: NANOPRECISION PRODUCTS, INC.Inventors: Yang Chen, King-Fu Hii, Tewodros Mengesha, Fred Bosch, Chris Morgan, Robert Ryan Vallance