Patents by Inventor Alexandros Stavrinadis
Alexandros Stavrinadis 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: 11420264Abstract: The present invention relates to a method for producing a 3D object and to a system adapted to implement the method, wherein the method comprises: —providing a powder material (G); —providing a radiation absorbent material, in the form of optically resonant particles (P), on a region to be sintered of the powder material; and—sintering the region to be sintered of the powder material (G), by exposing to light the optically resonant particles (P) to radiation. The method comprises providing the optically resonant particles (P) according to a distribution and proportion, with respect to the powder material (G) included in the region to be sintered, selected: —to disperse the optically resonant particles (P) within the powder material (G) included in said region, and—to avoid substantial agglomeration and substantial self-sintering of the optically resonant particles (P).Type: GrantFiled: April 10, 2018Date of Patent: August 23, 2022Assignees: FUNDACIÓ INSTITUT DE CIÈNCIES FOTÔNIQUES, INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANAISInventors: Romain Quidant, Gerasimos Konstantatos, Alexander Powell, Alexandros Stavrinadis, Jianjun Wang
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Publication number: 20220055294Abstract: Provided is a method for producing an electrically conductive composite, wherein the method includes: a) providing a bed of a polymer in a non-continuous solid form; b) providing, on the polymer bed, a composition that comprises a chemical precursor dissolved in a liquid medium made to inhibit a chemical reaction of the chemical precursor into forming an electrically conductive inorganic component; c) forming an electrically conductive inorganic component from a chemical reaction of the chemical precursor, by at least evaporating the liquid medium; and d) exposing to electromagnetic radiation an electromagnetic radiation absorber of the composition, to sinter those portions of said polymer bed in thermal contact therewith, to form a polymer network that percolates an electrically conductive network formed with the electrically conductive inorganic component. Also provided are a system and a package adapted to implement the presently disclosed method.Type: ApplicationFiled: May 23, 2019Publication date: February 24, 2022Applicants: Fundació Institut de Ciències Fotòniques, Institució Catalana de Recerca i Estudis AvançatsInventors: Alexandros Stavrinadis, Alexander Powell, Gerasimos Konstantatos, Romain Quidant
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Publication number: 20210276290Abstract: The present invention relates to a method for self-repairing an object, wherein the object (O) comprises a matrix of a material in a continuous solid form, with optically resonant particles dispersed there within, and that has been made by fusing together particles and/or particulates of the material in a non-continuous solid form with heat transferred from the optically resonant particles that has been generated thereby when optically resonating induced by their exposure to building electromagnetic radiation. The method comprises exposing a damaged region (D) of the object (O) to repairing electromagnetic radiation (R) to be absorbed by the optically resonant particles that are dispersed therein to optically resonate to generate heat to fuse together portions of the matrix in thermal contact therewith. The system is adapted to implement the method of the invention.Type: ApplicationFiled: June 14, 2019Publication date: September 9, 2021Applicants: FUNDACIÓ INSTITUT DE CIÈNCIES FOTÒNIQUES, INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATSInventors: Alexandros Stavrinadis, Alexander Powell, Gerasimos Konstantatos, Romain Quidant
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Publication number: 20200331201Abstract: The present application relates to a method for producing a three-dimensional object, comprising:—providing a first material (A) and, thereon, a second material (B) which is a reversible chromic material;—applying a stimulus to the second material (B) to change its optical properties from non-strong optical or substantially non-strong optical absorption properties to strong optical absorption properties, regarding a specific wavelength, and—exposing the second material (B) to electromagnetic radiation to be absorbed thereby to photothermally fuse portions of the first material (A) in thermal contact with the second material (B). A second aspect of the application relates to a system adapted to implement the method of the first aspect. A third aspect of the application concerns a kit of materials for producing a three-dimensional object. In a fourth aspect, the application relates to a sensing device comprising a three-dimensional object manufactured according to the method presented in the application.Type: ApplicationFiled: January 2, 2019Publication date: October 22, 2020Applicants: FUNDACIÓ INSTITUT DE CIÈNCIES FOTÒNIQUES, INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATSInventors: Alexandros Stavrinadis, Alexander Powell, Gerasimos Konstantatos, Romain Quidant
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Publication number: 20200156152Abstract: The present invention relates to a method for producing a 3D object and to a system adapted to implement the method, wherein the method comprises: —providing a powder material (G); —providing a radiation absorbent material, in the form of optically resonant particles (P), on a region to be sintered of the powder material; and —sintering the region to be sintered of the powder material (G), by exposing to light the optically resonant particles (P) to radiation. The method comprises providing the optically resonant particles (P) according to a distribution and proportion, with respect to the powder material (G) included in the region to be sintered, selected: —to disperse the optically resonant particles (P) within the powder material (G) included in said region, and —to avoid substantial agglomeration and substantial self-sintering of the optically resonant particles (P).Type: ApplicationFiled: April 10, 2018Publication date: May 21, 2020Applicants: Fundació Institut de Ciències Fotòniques, Institució Catalana de Recerca i Estudis AvançatsInventors: Romain Quidant, Gerasimos Konstantatos, Alexander Powell, Alexandros Stavrinadis, Jianjun Wang
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Publication number: 20200035393Abstract: Provided are methods for producing magnetic composites. In some embodiments, the methods include providing a material in a non-continuous solid form; providing optically resonant particles dispersed within at least a region of said material; and exposing the optically resonant particles to electromagnetic radiation to be absorbed thereby to optically resonate to generate heat to fuse together portions of the material in thermal contact therewith. In some embodiments, the optically resonant particles have magnetic properties and/or are adapted to have magnetic properties induced by a stimulus, and the material is a non-magnetic material. Also provided are systems, computer program products, and packages adapted to implement the presently disclosed methods.Type: ApplicationFiled: July 26, 2019Publication date: January 30, 2020Applicants: FUNDACIÓ INSTITUT DE CIÈNCIES FOTÒNIQUES, INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANCATSInventors: Alexandros Stavrinadis, Alexander Powell, Gerasimos Konstantatos, Romain Quidant
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Publication number: 20190358899Abstract: Provided is a method for producing an electrically conductive composite, wherein the method includes: a) providing a bed of a polymer in a non-continuous solid form; b) providing, on the polymer bed, a composition that comprises a chemical precursor dissolved in a liquid medium made to inhibit a chemical reaction of the chemical precursor into forming an electrically conductive inorganic component; c) forming an electrically conductive inorganic component from a chemical reaction of the chemical precursor, by at least evaporating the liquid medium; and d) exposing to electromagnetic radiation an electromagnetic radiation absorber of the composition, to sinter those portions of said polymer bed in thermal contact therewith, to form a polymer network that percolates an electrically conductive network formed with the electrically conductive inorganic component. Also provided are a system and a package adapted to implement the presently disclosed method.Type: ApplicationFiled: May 23, 2019Publication date: November 28, 2019Applicant: Fundació Institut de Ciències FotòniquesInventors: Alexandros Stavrinadis, Alexander Powell, Gerasimos Konstantatos, Romain Quidant