Patents by Inventor David Garmire
David Garmire 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).
-
Publication number: 20230111275Abstract: A differential amplifier includes an unmatched pair, including first quantum dots and second quantum dots, and a matched pair, including first and second phototransistors. The unmatched pair has a difference between a first spectrum absorbed by the first quantum dots and a second spectrum absorbed by the second quantum dots. Each of the first and second phototransistors includes a channel. The first quantum dots absorb the first spectrum from incident electromagnetic radiation and gate a first current through the channel of the first phototransistor, and the second quantum dots absorb the second spectrum from the incident electromagnetic radiation and gate a second current through the channel of the second phototransistor. The first and second phototransistors are coupled together for generating a differential output from the first and second currents, the differential output corresponding to the difference between the first and second spectrums within the incident electromagnetic radiation.Type: ApplicationFiled: October 12, 2021Publication date: April 13, 2023Inventors: Cody K. Hayashi, Carlos M. Torres, JR., Richard C. Ordonez, Nackieb M. Kamin, David Garmire
-
Patent number: 11056602Abstract: A graphene device for filtering color, involving a graphene structure responsive to continuous in-situ electrical gate-tuning of a Fermi level thereof and a plurality of nanoparticles disposed in relation to the graphene structure, each portion of the plurality of nanoparticles having a distinct energy bandgap in relation to another portion of the plurality of nanoparticles, and each portion of the plurality of nanoparticles configured to one of activate and deactivate in relation to the distinct energy bandgap and in response to the in-situ electrical gate-tuning of the Fermi level of the graphene structure.Type: GrantFiled: June 20, 2019Date of Patent: July 6, 2021Assignee: United States of America as represented by the Secretary of the NavyInventors: Richard C. Ordonez, Carlos M. Torres, Jr., Cody K. Hayashi, David Garmire
-
Publication number: 20200403106Abstract: A graphene device for filtering color, involving a graphene structure responsive to continuous in-situ electrical gate-tuning of a Fermi level thereof and a plurality of nanoparticles disposed in relation to the graphene structure, each portion of the plurality of nanoparticles having a distinct energy bandgap in relation to another portion of the plurality of nanoparticles, and each portion of the plurality of nanoparticles configured to one of activate and deactivate in relation to the distinct energy bandgap and in response to the in-situ electrical gate-tuning of the Fermi level of the graphene structure.Type: ApplicationFiled: June 20, 2019Publication date: December 24, 2020Applicant: United States of America as represented by Secretary of the NavyInventors: Richard C. Ordonez, Carlos M. Torres, JR., Cody K. Hayashi, David Garmire
-
Publication number: 20200340854Abstract: A plasmonic transducer includes a fluidic network layer, a carbon-based substrate, a liquid metal and an electromagnetic system. The fluidic network layer has a fluidic network layer front, a fluidic network layer back, a first through-hole passing from the fluidic network layer front to the fluidic network layer back. The carbon-based substrate is disposed on the fluidic network layer back. The liquid metal is disposed in the first through-hole. The electromagnetic system is operable to change the liquid metal from a first liquid metal state to a second liquid metal state. The transducer is operable to provide a first output signal when the liquid metal is in the first liquid metal state. The transducer is operable to provide a second output signal when the liquid metal is in the second liquid metal state.Type: ApplicationFiled: April 24, 2019Publication date: October 29, 2020Applicant: United States of America as represented by Secretary of the NavyInventors: Cody K. Hayashi, Richard C. Ordonez, Nackieb M. Kamin, David Garmire
-
Patent number: 10801885Abstract: A plasmonic transducer includes a fluidic network layer, a carbon-based substrate, a liquid metal and an electromagnetic system. The fluidic network layer has a fluidic network layer front, a fluidic network layer back, a first through-hole passing from the fluidic network layer front to the fluidic network layer back. The carbon-based substrate is disposed on the fluidic network layer back. The liquid metal is disposed in the first through-hole. The electromagnetic system is operable to change the liquid metal from a first liquid metal state to a second liquid metal state. The transducer is operable to provide a first output signal when the liquid metal is in the first liquid metal state. The transducer is operable to provide a second output signal when the liquid metal is in the second liquid metal state.Type: GrantFiled: April 24, 2019Date of Patent: October 13, 2020Assignee: United States of America as Represented by the Secretary of the NavyInventors: Cody K. Hayashi, Richard C. Ordonez, Nackieb M. Kamin, David Garmire
-
Patent number: 10750618Abstract: Methods, systems, and apparatus for fabricating a circuit board. The method includes fabricating, using an additive manufacturing device, a trace layer, a sacrificial layer, a rail layer and a lid. The method includes placing the sacrificial layer on the trace layer such that the raised traces protrude through corresponding openings of the sacrificial layer. The method includes depositing a conductive material on top of the sacrificial layer and the plurality of traces. The method includes removing the sacrificial layer from the trace layer and placing the rail layer on the trace layer such that the raised traces align with the corresponding openings of the rail layer. The method includes connecting one or more electrical components and melting a sealing sheet on top of the rail layer and the electrical components to reinforce connections and to provide protection. The method includes placing the lid on top of the sealing sheet.Type: GrantFiled: April 16, 2019Date of Patent: August 18, 2020Assignee: University of HawaiiInventors: David Garmire, Jie Zhou, Tamra Oyama
-
Publication number: 20190327837Abstract: Methods, systems, and apparatus for fabricating a circuit board. The method includes fabricating, using an additive manufacturing device, a trace layer, a sacrificial layer, a rail layer and a lid. The method includes placing the sacrificial layer on the trace layer such that the raised traces protrude through corresponding openings of the sacrificial layer. The method includes depositing a conductive material on top of the sacrificial layer and the plurality of traces. The method includes removing the sacrificial layer from the trace layer and placing the rail layer on the trace layer such that the raised traces align with the corresponding openings of the rail layer. The method includes connecting one or more electrical components and melting a sealing sheet on top of the rail layer and the electrical components to reinforce connections and to provide protection. The method includes placing the lid on top of the sealing sheet.Type: ApplicationFiled: April 16, 2019Publication date: October 24, 2019Inventors: David Garmire, Jie Zhou, Tamra Oyama
-
Publication number: 20190250114Abstract: A detection device detects the presence of a chemical or biological agent in an environment. The detection device includes a metal layer including a plurality of electrodes. The device further includes a graphene layer covering a surface of the metal layer of electrodes and a detection layer connected to the electrodes. Contact of a biological or chemical agent with a surface of the graphene layer causes a change in resistance of the graphene layer. The detection layer includes detection circuitry configured to detect the change in resistance as a function of a measured change in a current or voltage between adjacent electrodes.Type: ApplicationFiled: February 12, 2018Publication date: August 15, 2019Inventors: Nackieb M. Kamin, Marcio Calixto de Andrade, David Garmire, Richard Christopher Ordonez
-
Publication number: 20190051553Abstract: A method of fabricating a graphene device generally involving depositing a graphene monolayer from a carbon source on a metal catalyst layer; depositing a transfer substrate on the graphene monolayer by way of casting, thereby forming a transfer-substrate/graphene/metal-catalyst structure; annealing the transfer-substrate/graphene/metal-catalyst structure, thereby forming an annealed transfer-substrate/graphene/metal-catalyst structure; coupling a thermal adhesive with the transfer-substrate/graphene/metal-catalyst structure; moving the annealed transfer-substrate/graphene/metal-catalyst structure to a target area of a target device, by using a probe assembly or the like, thereby forming an annealed transfer-substrate/graphene/metal-catalyst/thermal-adhesive/target-device structure; releasing the slip of thermal adhesive from the annealed transfer-substrate/graphene/metal-catalyst thermal-adhesive/target-device structure by applying heat, thereby forming an annealed transfer-substrate/graphene/metal-catalyst/Type: ApplicationFiled: August 11, 2017Publication date: February 14, 2019Applicant: United States of America as represented by Secretary of the NavyInventors: Nackieb M. Kamin, Marcio C. de Andrade, David Garmire, Richard C. Ordonez
-
Patent number: 9997775Abstract: A device includes an electrolyte disposed between a layer of graphene and liquid metal. A system based upon the device includes a substrate having first and second layers of graphene and an enclosure disposed thereon. The enclosure encases the first and second layers of graphene and has a channel formed therein. A first end of the channel is disposed over at least a portion of the first layer of graphene and a second end of the channel is disposed over at least a portion of the second layer of graphene. An electrolyte disposed within the channel. Liquid metal is disposed within the electrolyte such that the liquid metal is separated from the first layer of graphene and the second layer of graphene by the electrolyte. The liquid metal is movable within the electrolyte to reconfigure power delivery to different connected loads.Type: GrantFiled: August 10, 2016Date of Patent: June 12, 2018Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVYInventors: Richard C. Ordonez, Nackieb M. Kamin, David Garmire, Cody K. Hayashi
-
Patent number: 9704964Abstract: A device includes a substrate, a layer of graphene disposed over at least a portion of the substrate, at least one conductive trace proximate to the layer of graphene, one or more liquid metal contacts electrically connecting the layer of graphene and the at least one conductive trace, and an encasing material disposed over and enclosing the liquid metal contacts. The liquid metal contacts are in contact with a portion of the layer of graphene and an adjoining portion of the respective conductive trace. The liquid metal contacts may comprise a eutectic alloy in stable liquid form at between about ?19° C. and about 1300° C., such as a gallium-based alloy. The conductive traces allow for external device connections and may be partially enclosed within the encasing material.Type: GrantFiled: May 26, 2016Date of Patent: July 11, 2017Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVYInventors: Richard C. Ordonez, Nackieb M. Kamin, David Garmire, Cody K. Hayashi
-
Patent number: 8981346Abstract: A system includes a semiconductor substrate having at least two electrodes disposed thereon, a dielectric layer disposed over the electrodes, a graphene layer disposed over the dielectric layer and electrically isolated from the electrodes, and a differential amplifier operatively connected to the electrodes and electrically isolated from the graphene layer. A radiation-sensitive layer may be disposed over the graphene layer and a voltage source may be operatively connected to two of the electrodes. The system may be contained on an integrated circuit and may be used to sense radiation in liquid and gas form.Type: GrantFiled: September 30, 2014Date of Patent: March 17, 2015Assignee: The United States of America as represented by the Secretary of the NavyInventors: Nackieb Kamin, Marcio De Andrade, David Garmire, Richard Ordonez, Cody Hayashi
-
Patent number: 8963265Abstract: A graphene based detector device can include a source, a drain, and a gate. The gate can incorporate a discharging element and a graphene sheet that is proximate to the discharging element. The graphene sheet for the transistor can have a decreasing width, from a maximum width w2 distal to the discharging element to a minimum width w1 proximate to the discharging element. An electric potential can be established across graphene sheet, to facilitate funneling of the electrons from the graphene sheet (which are caused by quanta of electromagnetic radiation) toward the discharging element. The devices can be formed in an array to establish an antenna that operates according to the quantum nature of light, as opposed to resonance (wavelength). Multiple graphene layers that are doped using different materials can be included. The multiple layer funnel electrons at specific frequencies, to create an operating frequency range for the device.Type: GrantFiled: September 14, 2012Date of Patent: February 24, 2015Assignee: The United States of America as Represented by the Secretary of the NavyInventors: Marclo C. de Andrade, Anna M. Leese de Escobar, David Garmire, Nackieb Kamin
-
Patent number: 8079246Abstract: The present invention provides a device for in-situ monitoring of material, process and dynamic properties of a MEMS device. The monitoring device includes a pair of comb drives, a cantilever suspension comprising a translating shuttle operatively connected with the pair of comb drives, structures for applying an electrical potential to the comb drives to displace the shuttle, structures for measuring an electrical potential from the pair of comb drives; measuring combs configured to measure the displacement of the shuttle, and structures for measuring an electrical capacitance of the measuring combs. Each of the comb drives may have differently sized comb finger gaps and a different number of comb finger gaps. The shuttle may be formed on two cantilevers perpendicularly disposed with the shuttle, whereby the cantilevers act as springs to return the shuttle to its initial position after each displacement.Type: GrantFiled: April 19, 2007Date of Patent: December 20, 2011Assignee: The Regents of the University of CaliforniaInventors: David Garmire, Hyuck Choo, Richard S. Muller, James Demmel, Sanjay Govindjee
-
Publication number: 20110223314Abstract: A device and method for generating microcapsules employs an inertial-focusing channel for introducing particles dispersed in a prepolymer suspension fluid, a droplet-generating junction for introducing oil evenly onto the flow of particles to create separated droplets of prepolymer suspension fluid encapsulating respective particles in a streamline flow, and a polymerization section for exposing the droplets to UV light or heat to cause polymerization of a polymer coating on separate microcapsules each containing a respective particle. Preferred suspension fluids may be aqueous solution of poly(ethylene-glycol)-diacrylate (PEGDA), or poly(N-isopropyl-acryalmide) (PNIPAAM). The preferred device may employ a curved or linear inertial-focusing microchannel. Functional tags and/or handles may be added to the microcapsules allowing easy detection, measurement and handling of the microcapsules.Type: ApplicationFiled: March 10, 2011Publication date: September 15, 2011Inventors: Xiaoxiao ZHANG, David Garmire, Aaron Ohta
-
Publication number: 20090322365Abstract: The present invention provides a device for in-situ monitoring of material, process and dynamic properties of a MEMS device. The monitoring device includes a pair of comb drives, a cantilever suspension comprising a translating shuttle operatively connected with the pair of comb drives, structures for applying an electrical potential to the comb drives to displace the shuttle, structures for measuring an electrical potential from the pair of comb drives; measuring combs configured to measure the displacement of the shuttle, and structures for measuring an electrical capacitance of the measuring combs. Each of the comb drives may have differently sized comb finger gaps and a different number of comb finger gaps. The shuttle may be formed on two cantilevers perpendicularly disposed with the shuttle, whereby the cantilevers act as springs to return the shuttle to its initial position after each displacement.Type: ApplicationFiled: April 19, 2007Publication date: December 31, 2009Applicant: Regents of the University of CaliforniaInventors: David Garmire, Hyuck Choo, Richard S. Muller, James Demmel, Sanjay Govindjee
-
Patent number: 7573022Abstract: The present invention relates to systems and methods for fabricating microscanners. The fabrication processes employed pursuant to some embodiments are compatible with well known CMOS fabrication techniques, allowing devices for control, monitoring and/or sensing to be integrated onto a single chip. Both one- and two-dimensional microscanners are described. Applications including optical laser surgery, maskless photolithography, portable displays and large scale displays are described.Type: GrantFiled: July 25, 2006Date of Patent: August 11, 2009Assignee: The Regents of the University of CaliforniaInventors: Hyuck Choo, David Garmire, Richard S. Muller, James Demmel
-
Patent number: 7564559Abstract: Provided herein are optical devices fabricated to include a reflective surface, actuators and stress-relieving structures. Systems containing such devices, and methods of manufacturing such devices, are also provided.Type: GrantFiled: June 2, 2006Date of Patent: July 21, 2009Assignee: The Regents of the University of CaliforniaInventors: Hyuck Choo, Richard S. Muller, David Garmire, James W. Demmel, Rishi Kant
-
Publication number: 20070279638Abstract: In general, the invention relates to the design and fabrication of optical devices suitable for use in methods and systems associated with phase-shift interferometry.Type: ApplicationFiled: June 2, 2006Publication date: December 6, 2007Applicant: The Regents of the University of CaliforniaInventors: Hyuck Choo, Richard S. Muller, David Garmire, James W. Demmel, Rishi Kant
-
Publication number: 20070026614Abstract: The present invention relates to systems and methods for fabricating microscanners. The fabrication processes employed pursuant to some embodiments are compatible with well known CMOS fabrication techniques, allowing devices for control, monitoring and/or sensing to be integrated onto a single chip. Both one- and two-dimensional microscanners are described. Applications including optical laser surgery, maskless photolithography, portable displays and large scale displays are described.Type: ApplicationFiled: July 25, 2006Publication date: February 1, 2007Inventors: Hyuck Choo, David Garmire, Richard Muller, James Demmel