Patents by Inventor Richard J. Paolini Jr.

Richard J. Paolini Jr. 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: 12248226
    Abstract: A variable light transmission device has at least one layer of electrophoretic medium comprising charged particles. Application of a an electric field having a waveform formed by a superposition of a carrier and a modulator waveform enables the switching of the device from a closed state to an open state, wherein the open state has higher light transmission than the closed state. As a result, the device enables the selection of the desired optical state by the user.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: March 11, 2025
    Assignee: E Ink Corporation
    Inventors: Kosta Ladavac, Richard J. Paolini, Jr., Stephen J. Telfer, Lee Yezek, Sunil Krishna Sainis, Peter Carsten Bailey Widger
  • Patent number: 12243498
    Abstract: An electrophoretic display comprising a fluid including a first species of particles and a charge control agent disposed between first and second electrodes. When a first addressing impulse have an electrical polarity is applied to the medium, the first species of particles move in one direction relative to the electric field, but when a second addressing impulse, larger than the first addressing impulse but having the same electrical polarity, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: March 4, 2025
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Stephen Bull, Alain Bouchard, Craig A. Herb, Kosta Ladavac, Ana L. Lattes, Jennifer M. Morrison, Richard J. Paolini, Jr., Michael Thomas Regan, Luke M. Slominski, Lee Yezek, Kenneth R. Crounse, J. Ryan Kruse, Christopher L. Hoogeboom, Jason D. Feick, David D. Miller
  • Publication number: 20250065333
    Abstract: An electrowetting system for actuating droplets of a first composition and of a second composition. The system includes: a plurality of electrodes configured to manipulate droplets of fluid in a microfluidic space, each electrode being coupled to circuitry which applies driving voltages to the electrode; and a processing unit operably connected to a look up table correlating drive sequences to chemical species and at least one composition parameter. The processing unit is configured to: receive data of a first chemical species and a first composition parameter of the first composition; receive data of a second chemical species and a second composition parameter of the second composition; correlate a first drive sequence with the first chemical species and the first composition parameter; correlate a second drive sequence with the second chemical species and the second composition parameter; and output the first drive sequence and the second drive sequence to the electrodes.
    Type: Application
    Filed: November 12, 2024
    Publication date: February 27, 2025
    Inventors: Richard J. Paolini, JR., Luke M. Slominski, Timothy J. O'Malley, David Zhitomirsky
  • Publication number: 20250060333
    Abstract: Electrophoretic visualization devices for interfacing with a processing unit configured to drive electrowetting on dielectric (EWoD) digital microfluidic devices. The visualization devices allow a user to visualize droplet pathing in the microfluidic workspace as well as implementation of magnetic fields and heat. Using the visualization devices, a researcher can test pathing protocols, magnetic engagement, and heating without using an actual digital microfluidic device or chemical reagents.
    Type: Application
    Filed: August 13, 2024
    Publication date: February 20, 2025
    Inventors: Richard J. PAOLINI, JR., Brian D. BEAN
  • Publication number: 20250058316
    Abstract: Improved methods for driving an active matrix of pixel electrodes controlled with thin film transistors when the voltage on a top electrode is being altered between driving frames. The method is useful for electrowetting devices. In particular, the methods can provide for more consistent droplet movement when used with a digital microfluidic device based upon an active matrix of pixel electrodes.
    Type: Application
    Filed: December 22, 2022
    Publication date: February 20, 2025
    Inventors: David Zhitomirsky, Richard J. Paolini, JR., Kenneth R. Crounse, Stephen J. Telfer, Analisa Lattes, Chris Hoogemoom, Seth J. Bishop
  • Publication number: 20250053057
    Abstract: An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.
    Type: Application
    Filed: October 29, 2024
    Publication date: February 13, 2025
    Inventors: Stephen J. TELFER, Richard J. PAOLINI, JR., Sunil Krishna SAINIS, Randall M. HILL, Issac W. MORAN, Lee YEZEK, Alain BOUCHARD, William VETTERLING, George G. HARRIS, Hywel MORGAN, Luke SLOMINSKI, Jay William ANSETH, Jennifer M. MORRISON, Craig A. HERB
  • Publication number: 20250018395
    Abstract: An electrowetting system is disclosed. The system includes electrodes configured to manipulate droplets of fluid in a microfluidic space. Each electrode is coupled to circuitry operative to selectively apply a driving voltage to the electrode. The system includes a dielectric stack including a first dielectric pair comprising a first layer having a first dielectric constant and a second layer having a second dielectric constant. The second dielectric constant is larger than the first dielectric constant. The dielectric stack includes a second dielectric pair comprising a third layer having a third dielectric constant and a fourth layer having a fourth dielectric constant. The fourth dielectric constant is larger than the third dielectric constant. A ratio of a thickness of the fourth layer to a thickness of the third layer (T4:T3) is in the range from about 2:1 to about 8:1. The second dielectric pair is thinner than the first dielectric pair.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Inventors: Cristina Visani, Richard J. Paolini, JR.
  • Patent number: 12186514
    Abstract: An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The invention is well-suited for delivering pharmaceuticals to patients transdermally. In some embodiments, the system includes two separate reservoirs and a mixing area thereby allowing precursors to be mixed immediately before transdermal delivery.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: January 7, 2025
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Stephen J. Telfer, Timothy J. O'Malley, Brian D. Bean
  • Patent number: 12179203
    Abstract: An electrowetting system for actuating droplets of a first composition and of a second composition. The system includes: a plurality of electrodes configured to manipulate droplets of fluid in a microfluidic space, each electrode being coupled to circuitry which applies driving voltages to the electrode; and a processing unit operably connected to a look up table correlating drive sequences to chemical species and at least one composition parameter. The processing unit is configured to: receive data of a first chemical species and a first composition parameter of the first composition; receive data of a second chemical species and a second composition parameter of the second composition; correlate a first drive sequence with the first chemical species and the first composition parameter; correlate a second drive sequence with the second chemical species and the second composition parameter; and output the first drive sequence and the second drive sequence to the electrodes.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: December 31, 2024
    Assignee: NUCLERA LTD
    Inventors: Richard J. Paolini, Jr., Luke M. Slominski, Timothy J. O'Malley, David Zhitomirsky
  • Patent number: 12181768
    Abstract: Light-transmissive conductors including oriented conductors disposed in a light-transmissive polymer having a volume resistivity between 1×1010 ohm-cm and 1×104 ohm-cm. The oriented conductors typically have very high conductivity along their length. Light-transmissive conductors described herein are well-suited for front electrodes for electro-optic displays, especially elongated displays in the shape of ribbons, stripes, or rulers.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: December 31, 2024
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Jay William Anseth
  • Patent number: 12158684
    Abstract: An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: December 3, 2024
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Richard J. Paolini, Jr., Sunil Krishna Sainis, Randal M. Hill, Isaac W. Moran, Lee Yezek, Alain Bouchard, William Vetterling, George G. Harris, Hywel Morgan, Luke Slominski, Jay William Anseth, Jennifer M. Morrison, Craig A. Herb
  • Publication number: 20240359181
    Abstract: Provided herein are methods, and compositions for the detection and analysis of biomolecule interactions a microfluidic device. The detection and analysis occurs in aqueous droplets having a first surfactant within an oil layer having a second surfactant.
    Type: Application
    Filed: August 18, 2022
    Publication date: October 31, 2024
    Inventors: Michael Chun Hao Chen, Sihong Chen, Chiara Gandini, Atanas Yordanov Georgiev, Michal Jan Horka, Sumit Kalsi, Johnathon Lilley, Richard J. Paolini, JR., Stephanie Reikine, Luke M. Slominski
  • Patent number: 12130531
    Abstract: An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: October 29, 2024
    Assignee: E Ink Corporation
    Inventors: Jin-Gyu Park, Richard J. Paolini, Jr., Peter Carsten Bailey Widger, Jillian Smith, Jay William Anseth, Craig A. Herb, George G. Harris, Mark Benjamin Romanowsky
  • Patent number: 12128411
    Abstract: An electrowetting system is disclosed. The system includes electrodes configured to manipulate droplets of fluid in a microfluidic space. Each electrode is coupled to circuitry operative to selectively apply a driving voltage to the electrode. The system includes a dielectric stack including a first dielectric pair comprising a first layer having a first dielectric constant and a second layer having a second dielectric constant. The second dielectric constant is larger than the first dielectric constant. The dielectric stack includes a second dielectric pair comprising a third layer having a third dielectric constant and a fourth layer having a fourth dielectric constant. The fourth dielectric constant is larger than the third dielectric constant. A ratio of a thickness of the fourth layer to a thickness of the third layer (T4:T3) is in the range from about 2:1 to about 8:1. The second dielectric pair is thinner than the first dielectric pair.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: October 29, 2024
    Assignee: NUCLERA LTD
    Inventors: Cristina Visani, Richard J. Paolini, Jr.
  • Patent number: 12130530
    Abstract: An image is formed on an architectural surface by applying to the surface, in order: a rear electrode layer; a light-transmissive front electrode layer; a photoconductive layer disposed between the front and rear electrode layers; and an electro-optic layer disposed between the front and rear electrode layers. A potential difference is applied between the front and rear electrode layers and the front electrode layer is imagewise exposed to radiation which causes a change in the conductivity of the photoconductive layer, thereby causing an imagewise change in the optical state of the electro-optic layer. Films for application to architectural surfaces are also provided.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: October 29, 2024
    Assignee: E Ink Corporation
    Inventors: Jay William Anseth, Richard J. Paolini, Jr., Stephen J. Telfer, Yelena Kann, Thomas S. Blaine, Nishit Murari
  • Publication number: 20240295789
    Abstract: A color electrophoretic display with distinct switching areas formed by a segmented top plane electrode opposite driving pixel electrodes. The distinct areas are programmed to switch at different times, thereby reducing the “flashiness” seen by a viewer during an image update. In one embodiment, the color electrophoretic medium of the display includes a reflective white particle and three other sets of particles, each comprising a different color.
    Type: Application
    Filed: May 13, 2024
    Publication date: September 5, 2024
    Inventors: Stephen J. TELFER, Richard J. PAOLINI, JR., Karl Raymond AMUNDSON, Kenneth R. CROUNSE, Alain BOUCHARD, Sunil Krishna SAINIS
  • Publication number: 20240288742
    Abstract: An electro-optic display includes a backplane with at least one electrode, a layer of an electro-optic material disposed adjacent to the backplane, and a light-transmissive electrically-conductive layer disposed on the opposite side of the layer of electro-optic material from the backplane. The electro-optic display also includes a rod member disposed laterally adjacent to the backplane, the electro-optic material, and the light-transmissive electrically-conductive layer. A first barrier layer is disposed adjacent to the light-transmissive electrically-conductive layer and a first side of the rod member, and a second barrier is layer disposed on the backplane and a second side of the rod member. The second side is the opposite side of the rod member from the first side. A flexible barrier tape extends from an edge portion of the first barrier layer, around the rod member, to an edge portion of the second barrier layer.
    Type: Application
    Filed: February 23, 2023
    Publication date: August 29, 2024
    Inventors: George G. HARRIS, Richard J. PAOLINI, JR., David Victor MARCOLIN, Xianhe WEI, Shyamala SUBRAMANIAN
  • Patent number: 12038666
    Abstract: An electrical connection between the backplane and the light-transmissive front electrode of an electrowetting device is provided by forming an aperture through the top front electrode coupled and a substrate coupled thereto and subsequently introducing a flowable, electrically-conductive material into the aperture. The flowable, electrically-conductive material provides an electrical contact between the light-transmissive electrically-conductive layer and the backplane.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: July 16, 2024
    Assignee: E Ink Corporation
    Inventors: Matthew Joseph Kayal, Steven Joseph Battista, Richard J. Paolini, Jr., Shyamala A. Subramanian
  • Patent number: 12027130
    Abstract: Methods and systems for driving an active matrix electrowetting on dielectric device including thin-film-transistors to increase the switching frequency of the propulsion electrodes beyond what is typical for line-by-line active matrix driving. By using a latching circuit, it is possible to selectively switch specific propulsion (pixel) electrodes between an “on” and an “off” state, wherein a propulsion electrode in an “on” state can be driven by a time varying drive voltage on the top electrode that is a much higher frequency than is typically possible with amorphous silicon thin-film-transistor arrays. The faster drive frequency improves the performance of electrowetting devices, especially when used with aqueous droplets having a high ionic strength.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: July 2, 2024
    Assignee: Nuclera LTD
    Inventors: Seth J. Bishop, Richard J. Paolini, Jr.
  • Patent number: 12019348
    Abstract: A color electrophoretic display with distinct switching areas formed by a segmented top plane electrode opposite driving pixel electrodes. The distinct areas are programmed to switch at different times, thereby reducing the “flashiness” seen by a viewer during an image update. In one embodiment, the color electrophoretic medium of the display includes a reflective white particle and three other sets of particles, each comprising a different subtractive color.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: June 25, 2024
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Richard J. Paolini, Jr., Karl Raymond Amundson, Kenneth R. Crounse, Alain Bouchard, Sunil Krishna Sainis