Patents by Inventor Hyowon Lee

Hyowon Lee 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: 20200155820
    Abstract: Drainage devices and microactuator systems adapted to be incorporated into drainage devices to provide a self-clearing capability for reducing obstructions in the drainage devices and/or a self-monitoring capability to confirm the overall operating condition of the drainage devices and their microactuators. Such a microactuator system includes a microactuator having a base, a cantilever comprising a flexure extending from the base and a plate structure at a distal end of the flexure, a sensing element on the flexure for sensing deflection of the cantilever, and a device for inducing an oscillating deflection of the cantilever relative to the base.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 21, 2020
    Inventors: Hyowon Lee, Qi Yang
  • Publication number: 20190313955
    Abstract: Disclosed herein is an antifouling device for large, nonplanar optical surfaces. The device can be used as marine or implantable applications that has nested multiscale features for active and passive anti-biofouling. By combining active and passive anti-biofouling mechanisms, this device will provide long-term protection against biofouling for over 10 years, extending the lifetime of self-clearing marine or implantable sensors.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 17, 2019
    Applicant: Purdue Research Foundation
    Inventor: Hyowon Lee
  • Publication number: 20190307608
    Abstract: Drainage devices have a self-clearing capability for reducing obstructions and a controllable flow restriction capability for controlling drainage flow, and microactuators for providing such capabilities. Such a microactuator includes a frame and an appendage anchored to the frame such that the frame supports the appendage, the frame at least partially surrounds the appendage, and the appendage is disposed in an opening or window defined by the frame. The appendage includes a platform and at least one beam that anchors the platform to the frame to enable the appendage to deflect out of a plane defined by the frame. The platform may include a ferromagnetic material that enables the appendage to deflect in response to an applied magnetic field.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 10, 2019
    Inventors: Hyowon Lee, Simon John, Hyunsu Park
  • Publication number: 20190125966
    Abstract: An implantable drug delivery device and method for delivering a drug to a living body. The device includes a housing having at least one opening, a reservoir within the housing adapted to contain a drug, a temporary seal closing the opening of the housing, and a heating element in thermal contact with the temporary seal. The heating element is adapted to generate heat in response to a magnetic field to melt the temporary seal and release a drug within the reservoir through the opening of the housing.
    Type: Application
    Filed: October 4, 2018
    Publication date: May 2, 2019
    Inventors: Hyowon Lee, Bahar Dhowan
  • Publication number: 20190110745
    Abstract: This invention generally relates to methods useful for measuring heart rate, respiration conditions, and oxygen saturation and a wearable device that incorporate those methods with a computerized system supporting data collection, analysis, readout and sharing. Particularly this present invention relates to a wearable device, such as a wrist watch or ring, for real time measuring heart rate, respiration conditions, and oxygen saturation.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Jacqueline Callihan Linnes, Orlando Sanguinette Hoilett, Ashlyn Twibell, Hyowon Lee, Rohit Srivastava, Jason Ummel, Ryan Linsawy
  • Publication number: 20190030318
    Abstract: A novel electrode design to prolong the lifetime and function efficacy of implantable pulse generators is disclosed herein. The novel electrode more efficiently delivers electrical charge for stimulating the nervous system, reduces power consumption by up to 50 percent while increasing functionality effectiveness. This new electrode design can be used in implantable simulation systems to treat a large number of neurological disorders with existing platforms or perform standalone.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Applicant: Purdue Research Foundation
    Inventors: Hyowon Lee, Hyunsu Park
  • Patent number: 9604039
    Abstract: A self-clearing actuator configured to be positioned in a pore providing fluid communication into a central lumen of a ventricular catheter body is described. The actuator extends into a central bore via a cantilever beam having a first end emanating at the central bore and a second end terminating at the actuator, wherein the actuator is configured to reciprocate within the central bore between a first position extending downward at an angle into the central bore and a second position substantially at or above the external surface of the catheter. The cantilever beam is stressed, e.g. via a composite compress layer, such that it is preloaded to nominally curve downward to extend the actuator into the second position. The actuator is preferably a magnet responsive to magnetic field such that the magnetic field drives the actuator toward the first position.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: March 28, 2017
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Jack W. Judy, Hyowon Lee, Marvin Bergsneider
  • Publication number: 20160250446
    Abstract: Methods and catheters suitable for removing or reducing the formation of cellular occlusion associated the catheters. The catheters include a surface coated or infused with magnetic nanoparticles. Once the catheter is implanted in a subject, the nanoparticles induce localized hyperthermia around the catheter in response to a magnetic field.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventor: Hyowon Lee
  • Patent number: 9338386
    Abstract: Disclosed is a method of providing broadcasting program information, the method including obtaining electronic program guide (EPG) information, extracting first program information from the obtained EPG information, the first program information being program information with respect to all channels, generating second program information based on the first program information, the second program information being information regarding first programs currently being broadcast and second programs to be displayed next in each of the channels, and displaying the generated second program information and a vertical line or a horizontal line indicating a current time on a screen.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taeung Jung, Hyowon Lee, Yoonhee Choi, Alan Francis Smeaton, Cathal Gurrin
  • Publication number: 20110313340
    Abstract: A self-clearing actuator configured to be positioned in a pore providing fluid communication into a central lumen of a ventricular catheter body is described. The actuator extends into a central bore via a cantilever beam having a first end emanating at the central bore and a second end terminating at the actuator, wherein the actuator is configured to reciprocate within the central bore between a first position extending downward at an angle into the central bore and a second position substantially at or above the external surface of the catheter. The cantilever beam is stressed, e.g. via a composite compress layer, such that it is preloaded to nominally curve downward to extend the actuator into the second position. The actuator is preferably a magnet responsive to magnetic field such that the magnetic field drives the actuator toward the first position.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Jack W. Judy, Hyowon Lee, Marvin Bergsneider
  • Publication number: 20090271823
    Abstract: Disclosed is a method of providing broadcasting program information, the method including obtaining electronic program guide (EPG) information, extracting first program information from the obtained EPG information, the first program information being program information with respect to all channels, generating second program information based on the first program information, the second program information being information regarding first programs currently being broadcast and second programs to be displayed next in each of the channels, and displaying the generated second program information and a vertical line or a horizontal line indicating a current time on a screen.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 29, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Taeung Jung, Hyowon Lee, Yoonhee Choi, Alan Francis Smeaton, Cathal Gurrin
  • Publication number: 20030118924
    Abstract: The present invention relates to a diarylethene derivative and a photochromic thin film using the same. More particularly, it relates to a diarylethene derivative and a photochromic thin film having excellent transparency prepared by depositing the same on the surface of a substrate, without crystallization or agglomeration to have effective photochromic property. This method also provides homogenous thin photochromic films with film thickness of a nano meter level and improved processability compared to conventional deposition processes thus, being suitable for coloring change with light repeatedly, optical information recording systems, and optical communication media.
    Type: Application
    Filed: July 29, 2002
    Publication date: June 26, 2003
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Eun Kyoung Kim, Hyowon Lee