Patents by Inventor Antoni P. Tomsia
Antoni P. Tomsia 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).
-
Patent number: 10293521Abstract: This disclosure provides systems, methods, and apparatus related to freeze casting. In one aspect, a method comprises providing an apparatus. The apparatus comprises a container and a cooling surface. A bottom of the container comprises a wedge. The wedge comprises a first substantially planar surface and a second substantially planar surface with an angle between the first and the second substantially planar surfaces. An interior bottom of the container comprises the second substantially planar surface. The cooling surface is in contact with the first substantially planar surface. A slurry is deposited on the second substantially planar surface, the slurry comprising a plurality of particles in a liquid. The cooling surface is cooled to cool the slurry at a specified cooling rate.Type: GrantFiled: August 1, 2016Date of Patent: May 21, 2019Assignee: The Regents of the University of CaliforniaInventors: Hao Bai, Yuan Chen, Benjamin Delattre, Antoni P. Tomsia
-
Patent number: 10164242Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: GrantFiled: May 19, 2015Date of Patent: December 25, 2018Assignees: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of CaliforniaInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
-
Publication number: 20170100857Abstract: This disclosure provides systems, methods, and apparatus related to freeze casting. In one aspect, a method comprises providing an apparatus. The apparatus comprises a container and a cooling surface. A bottom of the container comprises a wedge. The wedge comprises a first substantially planar surface and a second substantially planar surface with an angle between the first and the second substantially planar surfaces. An interior bottom of the container comprises the second substantially planar surface. The cooling surface is in contact with the first substantially planar surface. A slurry is deposited on the second substantially planar surface, the slurry comprising a plurality of particles in a liquid. The cooling surface is cooled to cool the slurry at a specified cooling rate.Type: ApplicationFiled: August 1, 2016Publication date: April 13, 2017Applicant: The Regents of the University of CaliforniaInventors: Hao Bai, Yuan Chen, Benjamin Delattre, Antoni P. Tomsia
-
Publication number: 20150364753Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: ApplicationFiled: May 19, 2015Publication date: December 17, 2015Applicants: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of CaliforniaInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
-
Patent number: 9065093Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: GrantFiled: April 9, 2012Date of Patent: June 23, 2015Assignees: Massachusetts Institute of Technology, The Regents of the University of California, The Regents of the University of MichiganInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
-
Patent number: 8552100Abstract: A composite having a flexible hydrogel polymer formed by mixing an organic phase with an inorganic composition, the organic phase selected from the group consisting of a hydrogel monomer, a crosslinker, a radical initiator, and/or a solvent. A polymerization mixture is formed and polymerized into a desired shape and size.Type: GrantFiled: February 22, 2006Date of Patent: October 8, 2013Assignee: The Regents of the University of CaliforniaInventors: Jie Song, Eduardo Saiz, Carolyn R. Bertozzi, Antoni P. Tomsia
-
Patent number: 8344042Abstract: The invention provides for a biodegradable synthetic bone composition comprising a biodegradable hydrogel polymer scaffold comprising a plurality of hydrolytically unstable linkages, and an inorganic component; such as a biodegradable poly(hydroxyethylmethacrylate)/hydroxyapatite (pHEMA/HA) hydrogel composite possessing mineral content approximately that of human bone.Type: GrantFiled: December 8, 2009Date of Patent: January 1, 2013Assignee: The Regents of the University of CaliforniaInventors: Gao Liu, Dacheng Zhao, Eduardo Saiz, Antoni P. Tomsia
-
Publication number: 20120315538Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: ApplicationFiled: April 9, 2012Publication date: December 13, 2012Applicants: Massachusetts Instituteof Technology, The Regents of the University of Michigan, Lawrence Berkeley LaboratoryInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
-
Patent number: 8012590Abstract: Glass coatings on metals including Ti, Ti6A14V and CrCo were prepared for use as implants. The composition of the glasses was tailored to match the thermal expansion of the substrate metal. By controlling the firing atmosphere, time, and temperature, it was possible to control the reactivity between the glass and the alloy and to fabricate coatings (25-150 ?m thick) with excellent adhesion to the substrate. The optimum firing temperatures ranged between 800 and 840° C. at times up to 1 min in air or 15 min in N2. The same basic technique was used to create multilayered coatings with concentration gradients of hydroxyapatite (HA) particles and SiO2.Type: GrantFiled: April 30, 2001Date of Patent: September 6, 2011Assignee: The Regents of the University of CaliforniaInventors: Antoni P. Tomsia, Eduardo Saiz, Jose M. Gomez-Vega, Sally J. Marshall, Grayson W. Marshall
-
Publication number: 20100179243Abstract: The invention provides for a biodegradable synthetic bone composition comprising a biodegradable hydrogel polymer scaffold comprising a plurality of hydrolytically unstable linkages, and an inorganic component; such as a biodegradable poly(hydroxyethylmethacrylate)/hydroxyapatite (pHEMA/HA) hydrogel composite possessing mineral content approximately that of human bone.Type: ApplicationFiled: December 8, 2009Publication date: July 15, 2010Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Gao Liu, Dacheng Zhao, Eduardo Saiz, Antoni P. Tomsia
-
Publication number: 20090197221Abstract: Provided are methods and compositions relating to a dental bonding composition useful in bonding a dental resin composite.Type: ApplicationFiled: February 4, 2008Publication date: August 6, 2009Inventors: Grayson W. Marshall, JR., Sally J. Marshall, Diana N. Zeiger, Antoni P. Tomsia, Eduardo Saiz
-
Publication number: 20080275171Abstract: A composite having a flexible hydrogel polymer formed by mixing an organic phase with an inorganic composition, the organic phase selected from the group consisting of a hydrogel monomer, a crosslinker, a radical initiator, and/or a solvent. A polymerization mixture is formed and polymerized into a desired shape and size.Type: ApplicationFiled: February 22, 2006Publication date: November 6, 2008Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jie Song, Eduardo Saiz, Carolyn R. Bertozzi, Antoni P. Tomsia
-
Publication number: 20020076528Abstract: Glass coatings on metals including Ti, Ti6A14V and CrCo were prepared for use as implants. The composition of the glasses was tailored to match the thermal expansion of the substrate metal. By controlling the firing atmosphere, time, and temperature, it was possible to control the reactivity between the glass and the alloy and to fabricate coatings (25-150 &mgr;m thick) with excellent adhesion to the substrate. The optimum firing temperatures ranged between 800 and 840° C. at times up to 1 min in air or 15 min in N2. The same basic technique was used to create multilayered coatings with concentration gradients of hydroxyapatite (HA) particles and SiO2.Type: ApplicationFiled: April 30, 2001Publication date: June 20, 2002Inventors: Antoni P. Tomsia, Grayson W. Marshall, Eduardo Saiz, Jose M. Gomez-Vega, Sally J. Marshall