Patents by Inventor Arthur S. Francomacaro
Arthur S. Francomacaro 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: 9281537Abstract: A thin film electrode is fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.Type: GrantFiled: July 22, 2013Date of Patent: March 8, 2016Assignee: The Johns Hopkins UniversityInventors: Rengaswamy Srinivasan, Jeffrey P. Maranchi, Lance M. Baird, Ryan M. Deacon, Arthur S. Francomacaro, Paul J. Biermann, Craig B. Leese, Gary E. Peck
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Publication number: 20130312255Abstract: A thin film electrode is fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.Type: ApplicationFiled: July 22, 2013Publication date: November 28, 2013Applicant: Johns Hopkins UnivesityInventors: Rengaswamy Srinivasan, Jeffrey P. Maranchi, Lance M. Baird, Ryan M. Deacon, Arthur S. Francomacaro, Paul J. Biermann, Craig B. Leese, Gary E. Peck
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Patent number: 8574767Abstract: Thin-film electrodes and battery cells, and methods of fabrication. A thin film electrode may be fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.Type: GrantFiled: May 18, 2010Date of Patent: November 5, 2013Assignee: The Johns Hopkins UniversityInventors: Rengaswamy Srinivasan, Jeffrey P. Maranchi, Lance M. Baird, Ryan M. Deacon, Arthur S. Francomacaro, Paul J. Biermann, Craig B. Leese, Gary E. Peck
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Publication number: 20110123852Abstract: Thin-film electrodes and battery cells, and methods of fabrication. A thin film electrode may be fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.Type: ApplicationFiled: May 18, 2010Publication date: May 26, 2011Inventors: Rengaswamy Srinivasan, Jeffrey P. Maranchi, Lance M. Baird, Ryan M. Deacon, Arthur S. Francomacaro, Paul J. Biermann, Craig B. Leese, Gary E. Peck
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Patent number: 7298956Abstract: The index of refraction in a length of doped and/or “doped-and-poled” electro-optic polymers is controlled so that a gradual transition from a low ?n to a high ?n, or vice versa, is achieved for use in, for example, a lightguide-to-fiber transition. Multiple methods for creating this gradual transition are disclosed.Type: GrantFiled: September 8, 2003Date of Patent: November 20, 2007Assignee: The Johns Hopkins UniversityInventors: Harry K. Charles, Jr., Deborah M. Mechtel, Arthur S. Francomacaro
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Patent number: 6977381Abstract: A gating grid for deflecting ions includes an insulating substrate (16), a conducting layer (28) adhered to the insulating substrate (16), and interdigitated electrodes (14) patterned in the conducting layer by a photolithographic process. A hole (18) in the insulating substrate beneath the interdigitated electrodes allows ions to pass through the hole in the substrate. A process for making a gating grid for deflecting ions includes adhering a conducting layer (28) to an insulating substrate (16), forming interdigitated electrodes (14) on the conducting layer (28), and then forming a hole (18) in the insulating substrate beneath the interdigitated electrodes.Type: GrantFiled: January 29, 2003Date of Patent: December 20, 2005Assignee: The Johns Hopkins UniversityInventors: Harry K. Charles, Jr., Arthur S. Francomacaro, Allen C. Keeney, David M. Lee, Timothy J. Cornish
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Publication number: 20040231150Abstract: A gating grid for deflecting ions includes an insulating substrate (16), a conducting layer (28) adhered to the insulating substrate (16), and interdigitated electrodes (14) patterned in the conducting layer by a photolithographic process. A hole (18) in the insulating substrate beneath the interdigitated electrodes allows ions to pass through the hole in the substrate. A process for making a gating grid for deflecting ions includes adhering a conducting layer (28) to an insulating substrate (16), forming interdigitated electrodes (14) on the conducting layer (28), and then forming a hole (18) in the insulating substrate beneath the interdigitated electrodes.Type: ApplicationFiled: June 25, 2003Publication date: November 25, 2004Inventors: Harry K. Charles, Arthur S Francomacaro, Allen C Keeney, David M Lee, Timothy J Cornish
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Patent number: 6733823Abstract: A method of electrolessly gold plating copper on a printed circuit board (PCB). Starting with a copper patterned PCB, steps include: clean with ultrasonic agitation with the PCB initially oriented vertically and gradually moved to a 45° angle; rinse; sulfuric acid bath with ultrasonic and mechanical agitation; rinse; another sulfuric acid bath with ultrasonic and mechanical agitation; plate the copper with palladium with ultrasonic agitation with the PCB initially oriented at a 45° angle and flipped half way through to opposing 45° angle; rinse; post dip in sulfuric acid; rinse; electrolessly nickel plate with mechanical agitation; rinse; nitrogen blow dry; visual inspection for nickel coverage of the copper; hydrochloric acid bath with manual agitation; rinse; if full nickel coverage was not achieved, repeat preceding steps starting with second sulfuric acid bath; gold flash plate to establish a first layer of gold; rinse; autocatalytic gold plate; rinse; and nitrogen blow dry.Type: GrantFiled: April 2, 2002Date of Patent: May 11, 2004Assignee: The Johns Hopkins UniversityInventors: David M. Lee, Arthur S. Francomacaro, Seppo J. Lehtonen, Harry K. Charles, Jr.
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Publication number: 20020182308Abstract: A method of electrolessly gold plating copper on a printed circuit board (PCB). Starting with a copper patterned PCB, steps include: clean with ultrasonic agitation with the PCB initially oriented vertically and gradually moved to a 45° angle; rinse; sulfuric acid bath with ultrasonic and mechanical agitation; rinse; another sulfuric acid bath with ultrasonic and mechanical agitation; plate the copper with palladium with ultrasonic agitation with the PCB initially oriented at a 45° angle and flipped half way through to opposing 45° angle; rinse; post dip in sulfuric acid; rinse; electrolessly nickel plate with mechanical agitation; rinse; nitrogen blow dry; visual inspection for nickel coverage of the copper; hydrochloric acid bath with manual agitation; rinse; if full nickel coverage was not achieved, repeat preceding steps starting with second sulfuric acid bath; gold flash plate to establish a first layer of gold; rinse; autocatalytic gold plate; rinse; and nitrogen blow dry.Type: ApplicationFiled: April 2, 2002Publication date: December 5, 2002Inventors: David M. Lee, Arthur S. Francomacaro, Seppo J. Lehtonen, Harry K. Charles