Patents by Inventor Hae-Seung Lee

Hae-Seung 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: 20170362348
    Abstract: Acrylic syrup polymer composition are provided by partially polymerizing a (meth)acrylic monomer mixture in the presence of a thiol chain transfer agent to produce a first syrup polymer composition comprising a low molecular weight solute (meth)acrylic copolymer and solvent monomers, quenching the chain transfer agent, further polymerizing the first syrup polymer composition to produce a second syrup polymer composition comprising the low molecular weight solute acrylic copolymer, a high molecular weight solute acrylic copolymer and optionally unreacted solvent monomers, optionally adding a crosslinker and photoinitiator; and further photopolymerizing the syrup polymer composition to produce a pressure-sensitive adhesive.
    Type: Application
    Filed: December 1, 2015
    Publication date: December 21, 2017
    Inventors: Stefan H. Gryska, Hae-Seung Lee, Sung-Won Ha, Jenny B. Werness, Erick I. Soto Cantu, Babu N. Gaddam
  • Patent number: 9803114
    Abstract: A method for preparing an acrylate adhesive is provided by the steps of partially polymerizing a monomer mixture to provide a syrup polymer composition having a high molecular weight solute copolymer. This first syrup composition is again polymerized to provide a second syrup polymer composition having a low molecular weight copolymer. The second syrup polymer composition is provided with a crosslinking agent and further polymerized to provide the adhesive composition.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: October 31, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Sung-Won Ha, Babu N. Gaddam, Mark F. Ellis, Hae-Seung Lee, John R. Jacobsen
  • Publication number: 20170240160
    Abstract: A control method and apparatus of a hybrid vehicle are provided. The control method includes determining whether the speed of a motor exceeds a first threshold value, when supply of power to a battery is cut off and thus the hybrid vehicle is driven by an engine. The speed is then adjusted to be the first threshold value or less, when the speed exceeds the first threshold value.
    Type: Application
    Filed: June 13, 2016
    Publication date: August 24, 2017
    Inventors: Dae Ro Park, Jin Woo Cho, Seung Ho Lee, Hyun Min Park, Hae Seung Lee, Ji Yeol Park
  • Patent number: 9714369
    Abstract: A polymerizable composition comprising a (meth)acrylate copolymer having pendent photoinitiator groups and a high Tg monomer or macromer is described. The resulting copolymer is physically crosslinking and is of the formula I: (I).
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 25, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Hae-Seung Lee, Stefan H. Gryska, Babu N. Gaddam
  • Publication number: 20170197608
    Abstract: A method for preventing over discharge of a battery includes steps of: detecting a gradient of a road on which a vehicle is running by a controller, when a battery is discharged under a state that an engine of the running vehicle is operated, detecting a clutch driving state of an engine clutch, which connects or disconnects the engine and an electric motor, after detecting the road gradient, detecting a SOC (State of Charge) of the battery after detecting the clutch driving state of the engine clutch, and carrying out a torque reserve control allowing more torque to be reserved in the engine, using a combination of the road gradient, the clutch driving state, and the battery SOC, such that the battery SOC is not lowered below a certain amount.
    Type: Application
    Filed: November 28, 2016
    Publication date: July 13, 2017
    Inventors: Hae-Seung Lee, Se-Geun Kim, Dong Shin
  • Publication number: 20170198178
    Abstract: Adhesive (co)polymers of this disclosure comprise: a) an isobutylene copolymer having pendent succinate groups and optionally a tackifier. The pendent succinic acid groups ionically crosslinks the isobutylene copolymer by hydrogen bonding with adjacent pendent succinic acid groups.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: Hae-Seung Lee, Joon Chatterjee, Gregg A. Caldwell, Babu N. Gaddam
  • Publication number: 20170187333
    Abstract: Amplifier circuits comprising an input transistor, a load transistor, and a feedback resistor. In one example, one embodiment is directed to an amplifier circuit comprising an input transistor, a load transistor having a control terminal and a reference terminal, and a feedback transistor. The input transistor receives an input signal, the input transistor is electrically coupled to the load transistor and the feedback transistor, the control terminal of the load transistor is electrically coupled to a bias voltage, the feedback transistor is electrically coupled to the load transistor providing negative feedback, and the reference terminal of the load transistor serves as an output of the amplifier circuit.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 29, 2017
    Inventor: Hae-Seung Lee
  • Patent number: 9667194
    Abstract: Switched capacitor circuits and charge transfer methods comprising a sampling phase and a transfer phase. Circuits and methods are implemented via a plurality of switches, a set of at least two capacitors, at least one voltage amplifier, and an operational amplifier. In one example, during the sampling phase at least one input voltage is sampled, and during the transfer phase at least a first reference voltage provided by the at least one voltage amplifier is subtracted from the at least one input voltage using the operational amplifier. The same set of at least two capacitors may be used in both the sampling phase and the transfer phase.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 30, 2017
    Assignee: Omni Design Technologies Inc.
    Inventor: Hae-Seung Lee
  • Patent number: 9663690
    Abstract: A curable composition comprising a silicone, a halomethyl-1,3,5-triazine and optionally a silicate tackifier is disclosed. The compositions are useful in the preparation of pressure-sensitive adhesives and release coatings.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 30, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Joon Chatterjee, Hae-Seung Lee, Mark D. Purgett, Jitendra S. Rathore
  • Publication number: 20170145248
    Abstract: Conformable coating composition are described comprising a (meth)acrylate copolymer comprising interpolymerized monomer units of fluorinated monomer and a volatile solvent having a solubility parameter from 4.9-12.5 (cal/cm3)1/2. In some embodiments, the fluorinated monomer has a Tg <30° C. In some embodiments, the dried coating exhibits no blocking and no greater than 75% failure at an elongation of 100%. Also described is a conformable film comprising a dried coating composition of the coating compositions described herein, articles comprising a layer of the conformable film on a substrate, and a copolymer comprising interpolymerized units of fluorinated monomer(s), silane monomer(s); and one or more monomers having a Tg ?50° C.
    Type: Application
    Filed: July 2, 2015
    Publication date: May 25, 2017
    Inventors: Robert A. Asmus, Hae-Seung Lee, Dong-Wei Zhu
  • Patent number: 9631126
    Abstract: The disclosure provides pressure-sensitive adhesives and adhesive sealants prepared from alkoxysilane modified, crosslinked isobutylene copolymers, and tape articles prepared therefrom. The adhesive is particularly useful in bonding optical displays.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: April 25, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Hae-Seung Lee, Abdujabar K. Dire, Gregg A. Caldwell
  • Patent number: 9608652
    Abstract: A time-interleaved (TI) analog-to-digital converter (ADC) architecture employs a low resolution coarse ADC channel that samples an input analog signal at a Nyquist rate and facilitates background calibration of timing-skew error without interrupting normal operation to sample/convert the input signal. The coarse ADC channel provides a timing reference for multiple higher resolution TI ADC channels that respectively sample the input signal at a lower sampling rate. The coarse ADC digital output is compared to respective TI ADC digital outputs to variably adjust in time corresponding sampling clocks of the TI ADC channels so as to substantially align them with the sampling clock of the coarse ADC channel, thus reducing timing-skew error. In one example, the coarse ADC output provides the most significant bits (MSBs) of the respective TI ADC digital outputs to further improve conversion speed and reduce power consumption in these channels.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: March 28, 2017
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Sunghyuk Lee, Hae-Seung Lee, Anantha Chandrakasan
  • Publication number: 20170081567
    Abstract: A method for preparing an acrylate adhesive is provided by the steps of partially polymerizing a monomer mixture to provide a syrup polymer composition having a high molecular weight solute copolymer. This first syrup composition is again polymerized to provide a second syrup polymer composition having a low molecular weight copolymer. The second syrup polymer composition is provided with a crosslinking agent and further polymerized to provide the adhesive composition.
    Type: Application
    Filed: May 26, 2015
    Publication date: March 23, 2017
    Inventors: Sung-Won Ha, Babu N. Gaddam, Mark F. Ellis, Hae-Seung Lee, John R. Jacobsen
  • Patent number: 9587150
    Abstract: An adhesive composition is described comprising a tackifier and at least one grafted isobutylene copolymer. The grafted isobutylene copolymer has the formula: R1—(R2—Z) wherein R1 represents an isobutylene copolymer, R2 is a covalent bond or multivalent alkylene or arylene, and Z is a grafted polymer. Z is typically a homopolymer of copolymer comprising alkene repeat units, aralkylene repeat units, or a combination thereof. Also described are adhesive coated articles, methods of making adhesive coated articles, and grafted isobutylene polymers.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: March 7, 2017
    Inventors: Hae-Seung Lee, Jonathan E. Janoski, Joon Chatterjee, Kevin M. Lewandowski, Babu N. Gaddam
  • Publication number: 20170037273
    Abstract: An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may further include a zirconium salt. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.
    Type: Application
    Filed: April 10, 2015
    Publication date: February 9, 2017
    Inventors: Mahfuza B. Ali, Susannah C. Clear, Terry R. Hobbs, Jeffry L. Jacobs, Hae-Seung Lee, Mary Lou Morris
  • Publication number: 20170037286
    Abstract: A polymerizable composition comprising a (meth)acrylate copolymer having pendent photoinitiator groups and a high Tg monomer or macromer is described. The resulting copolymer is physically crosslinking and is of the formula I: (I).
    Type: Application
    Filed: April 17, 2015
    Publication date: February 9, 2017
    Inventors: Hae-Seung LEE, Stefan H. GRYSKA, Babu N. GADDAM
  • Patent number: 9562180
    Abstract: Adhesive compositions comprising a copolymer of isobutylene repeat units and alkene repeat units are described. At least a portion of the alkene repeat units are bonded to a pendent nitrogen atom of a quaternary ammonium salt comprising a free-radically polymerizable substituent. The adhesive optionally comprises other components such as tackifier, unfunctionalized polyisobutylene polymer, plasticizer, and combinations thereof.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: February 7, 2017
    Inventors: Hae-Seung Lee, Joon Chatterjee, Babu N. Gaddam
  • Publication number: 20170029649
    Abstract: An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.
    Type: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Inventors: Mahfuza B. Ali, Susannah C. Clear, Terry R. Hobbs, Jeffry L. Jacobs, Hae-Seung Lee, Mary Lou Morris
  • Publication number: 20170021052
    Abstract: A conformable coating composition comprising a crystalline copolymer, and use thereof in barrier coating is described.
    Type: Application
    Filed: March 2, 2015
    Publication date: January 26, 2017
    Inventors: Robert A. Asmus, Hae-Seung Lee, Dong-Wei Zhu
  • Publication number: 20160297421
    Abstract: The present disclosure provides a technology of determining an engine friction torque even when idling of an engine is not performed, by providing a certain engine Revolutions per Minute (RPM) in stop state of the engine using Hybrid Starter & Generator (HSG) connected to an engine pulley. The present disclosure provides a technology of determining an accurate engine friction torque using a torque provided from the outside of an engine instead of a torque generated the engine itself.
    Type: Application
    Filed: December 5, 2015
    Publication date: October 13, 2016
    Inventors: Hyun Mo Ahn, Yun Chan Heo, In Tak Kim, Doo Il Won, Hae Seung Lee, Yeong Jin Nam