Patents by Inventor Huan Hu

Huan Hu 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: 10349653
    Abstract: The present disclosure relates to methods for forming an antimicrobial nanostructure and antimicrobial articles. The methods may include: providing a master template of a layout of the antimicrobial nanostructure on a silicon substrate, depositing a silicon nitride layer on a top surface of the silicon substrate, forming a patterned lithographic resist mask layer on a top surface of the silicon nitride layer, generating certain silicon pillars according to the patterned lithographic resist mask using a resist and reactive ion etching, forming certain lateral silicon nanospikes on the silicon pillars by performing metal assisted chemical etching (MacEtch), and removing the silicon nitride layer and bonding a top cover glass on the silicon pillars to form the antimicrobial nanostructure having lateral silicon nanospikes.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stacey M. Gifford, Huan Hu, Pablo Meyer Rojas, Joshua T. Smith
  • Publication number: 20190200608
    Abstract: The method comprises contacting a silicon substrate with a silver salt and an acid for a time effective to produce spikes having a first end disposed on the silicon substrate and a second end extending away from the silicon substrate. The spikes have a second end diameter of about 10 nm to about 200 nm, a height of about 100 nm to 10 micrometers, and a density of about 10 to 100 per square microns. The nanostructures provide antimicrobial properties and can be transferred to the surface of various materials such as polymers.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: STACEY M. GIFFORD, HUAN HU, PABLO M. ROJAS, GUSTAVO A. STOLOVITZKY
  • Publication number: 20190159937
    Abstract: The subject disclosure is directed to antimicrobial bandages with nanostructures, formation thereof, and usage thereof to facilitate wound healing. In one embodiment, a bandage apparatus that facilitates healing a wound is provided. The bandage apparatus comprises a substrate comprising an attachment mechanism that facilitates removably attaching the substrate to a part of a body comprising the wound. The bandage apparatus further comprises a nanostructure film provided on a surface of the substrate and configured to contact the wound when the substrate is attached to the part of the body comprising the wound, wherein the nanostructure film comprises a plurality of nanostructures.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventors: Huan Hu, Minhua Lu, Vince Siu, Gustavo Alejandro Stolovitzky
  • Publication number: 20190153693
    Abstract: The present invention discloses a structural steel inner support system in a foundation pit which ensures the support density of the structural steel inner support beam of the inner support system for foundation pits and improves structural stability and reliability of inner support of foundation pits. The system includes a purlin assembly, a plurality of vertical force-guiding connecting members including support members, upper force-guiding connecting beams and lower force-guiding connecting beams in the foundation pit; and a structural steel inner support beam and a prestress-pressing member in the foundation pit.
    Type: Application
    Filed: August 18, 2018
    Publication date: May 23, 2019
    Inventors: Qi Hu, Huan Hu, Haidi Zhu, Xingdi Huang
  • Patent number: 10292384
    Abstract: The method comprises contacting a silicon substrate with a silver salt and an acid for a time effective to produce spikes having a first end disposed on the silicon substrate and a second end extending away from the silicon substrate. The spikes have a second end diameter of about 10 nm to about 200 nm, a height of about 100 nm to 10 micrometers, and a density of about 10 to 100 per square microns. The nanostructures provide antimicrobial properties and can be transferred to the surface of various materials such as polymers.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 21, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stacey M. Gifford, Huan Hu, Pablo M. Rojas, Gustavo A. Stolovitzky
  • Patent number: 10280077
    Abstract: Aspects include a method of manufacturing a flexible electronic structure that includes a metal or doped silicon substrate. Aspects include depositing an adhesive layer on the top side of the structure. Aspects also include depositing a release layer and a glass layer on the top side of the structure. Aspects also include reducing a thickness of the silicon substrate on the bottom side of the structure.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 7, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul S. Andry, Huan Hu, Katsuyuki Sakuma
  • Publication number: 20190132126
    Abstract: Methods and systems for generating a random number include extracting feature information from a structure having a random physical configuration. The feature information is converted to a string of binary values to generate a random number.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 2, 2019
    Inventors: Huan Hu, Kafai Lai, Sharathchandra Pankanti, Rasit Onur Topalogu
  • Publication number: 20190117157
    Abstract: Apparatus, systems, and methods of manufacture of sensors facilitating monitoring of living entities. In one example, a system comprises a flexible substrate comprising an adhesive adapted to cause the flexible substrate to adhere to a defined surface. A silicon substrate or film can be disposed on the flexible substrate, wherein the silicon substrate or film is formed to include one or more nanogratings adapted to receive and reflect light based on strain on the defined surface.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Inventors: Huan Hu, John Knickerbocker, Katsuyuki Sakuma
  • Patent number: 10251390
    Abstract: The present disclosure relates to methods for forming an antimicrobial nanostructure and antimicrobial articles. The methods may include: providing a master template of a layout of the antimicrobial nanostructure on a silicon substrate, depositing a silicon nitride layer on a top surface of the silicon substrate, forming a patterned lithographic resist mask layer on a top surface of the silicon nitride layer, generating certain silicon pillars according to the patterned lithographic resist mask using a resist and reactive ion etching, forming certain lateral silicon nanospikes on the silicon pillars by performing metal assisted chemical etching (MacEtch), and removing the silicon nitride layer and bonding a top cover glass on the silicon pillars to form the antimicrobial nanostructure having lateral silicon nanospikes.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 9, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stacey M. Gifford, Huan Hu, Pablo Meyer Rojas, Joshua T. Smith
  • Patent number: 10247700
    Abstract: A technique relates to manufacturing a nanogap. An oxide layer is disposed on top of a substrate. A release layer is disposed in a pattern on top of the oxide layer. A patterned trench is etched into the oxide layer using the pattern of the release layer. A metal layer is disposed on the release layer and in the patterned trench. A polish removes the release layer, thereby removing both the release layer and a portion of the metal layer having been disposed on top of the release layer, such that the metal layer remaining includes a first metal part and a second metal part connected by a metal nanowire. The metal layer remaining is coplanar with the oxide layer. A nanochannel is formed in the oxide layer in a region of the metal nanowire. The nanogap is formed in the metal nanowire separating the first and second metal parts.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 2, 2019
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, BIONANO GENOMICS, INC.
    Inventors: Huan Hu, Michael F. Lofaro, Joshua T. Smith, Benjamin H. Wunsch, Daniel J. Solis
  • Publication number: 20190045777
    Abstract: The present disclosure relates to methods for forming an antimicrobial nanostructure and antimicrobial articles. The methods may include: providing a master template of a layout of the antimicrobial nanostructure on a silicon substrate, depositing a silicon nitride layer on a top surface of the silicon substrate, forming a patterned lithographic resist mask layer on a top surface of the silicon nitride layer, generating certain silicon pillars according to the patterned lithographic resist mask using a resist and reactive ion etching, forming certain lateral silicon nanospikes on the silicon pillars by performing metal assisted chemical etching (MacEtch), and removing the silicon nitride layer and bonding a top cover glass on the silicon pillars to form the antimicrobial nanostructure having lateral silicon nanospikes.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Inventors: STACEY M. GIFFORD, HUAN HU, PABLO MEYER ROJAS, JOSHUA T. SMITH
  • Publication number: 20180341530
    Abstract: A temperature-aware task scheduling method, system, and computer program product, include determining a change in an operation intensity factor of the GPU from a previous state and modifying the operation intensity factor, in response to the determining the change in the operation intensity factor from the previous state.
    Type: Application
    Filed: August 7, 2018
    Publication date: November 29, 2018
    Inventors: I-Hsin Chung, Huan Hu, Wei Tan
  • Patent number: 10133610
    Abstract: A temperature-aware task scheduling method, system, and computer program product, includes the GPU, receiving a request to execute the task, collecting task information including an intensiveness factor of a computation by an arithmetic logic unit (ALU) and a memory usage of a dynamic random-access memory (DRAM) for the task, obtaining a temperature of the ALU and a temperature of the DRAM, and accepting the task to the GPU based on the intensiveness factor, the ALU temperature, and the DRAM temperature.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: November 20, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: I-Hsin Chung, Huan Hu, Wei Tan
  • Patent number: 10107803
    Abstract: In one example, a device includes a trench formed in a substrate. The trench includes a first end and a second end that are non-collinear. A first plurality of semiconductor pillars is positioned near the first end of the trench and includes integrated light sources. A second plurality of semiconductor pillars is positioned near the second end of the trench and includes integrated photodetectors.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: October 23, 2018
    Assignee: International Business Machines Corporation
    Inventors: Yann Astier, Huan Hu, Ning Li, Devendra K. Sadana, Joshua T. Smith, William T. Spratt
  • Publication number: 20180272045
    Abstract: Aspects include methods of fabricating antibacterial surfaces for medical implant devices including patterning a photoresist layer on a silicon substrate and etching the silicon to generate a plurality of nanopillars. Aspects also include removing the photoresist layer from the structure and coating the plurality of nanopillars with a biocompatible film. Aspects also include a system for preventing bacterial infection associated with medical implants including a thin silicon film including a plurality of nanopillars.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 27, 2018
    Inventors: Stacey M. Gifford, Huan Hu, Emily R. Kinser, Roy R. Yu, Sufi Zafar
  • Publication number: 20180272048
    Abstract: Aspects include methods of fabricating antibacterial surfaces for medical implant devices including patterning a photoresist layer on a silicon substrate and etching the silicon to generate a plurality of nanopillars. Aspects also include removing the photoresist layer from the structure and coating the plurality of nanopillars with a biocompatible film. Aspects also include a system for preventing bacterial infection associated with medical implants including a thin silicon film including a plurality of nanopillars.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 27, 2018
    Inventors: Stacey M. Gifford, Huan Hu, Emily R. Kinser, Roy R. Yu, Sufi Zafar
  • Publication number: 20180272046
    Abstract: Aspects include methods of fabricating antibacterial surfaces for medical implant devices including patterning a photoresist layer on a silicon substrate and etching the silicon to generate a plurality of nanopillars. Aspects also include removing the photoresist layer from the structure and coating the plurality of nanopillars with a biocompatible film. Aspects also include a system for preventing bacterial infection associated with medical implants including a thin silicon film including a plurality of nanopillars.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 27, 2018
    Inventors: Stacey M. Gifford, Huan Hu, Emily R. Kinser, Roy R. Yu, Sufi Zafar
  • Publication number: 20180272047
    Abstract: Aspects include methods of fabricating antibacterial surfaces for medical implant devices including patterning a photoresist layer on a silicon substrate and etching the silicon to generate a plurality of nanopillars. Aspects also include removing the photoresist layer from the structure and coating the plurality of nanopillars with a biocompatible film. Aspects also include a system for preventing bacterial infection associated with medical implants including a thin silicon film including a plurality of nanopillars.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 27, 2018
    Inventors: Stacey M. Gifford, Huan Hu, Emily R. Kinser, Roy R. Yu, Sufi Zafar
  • Publication number: 20180257926
    Abstract: Aspects include a method of manufacturing a flexible electronic structure that includes a metal or doped silicon substrate. Aspects include depositing an adhesive layer on the top side of the structure. Aspects also include depositing a release layer and a glass layer on the top side of the structure. Aspects also include reducing a thickness of the silicon substrate on the bottom side of the structure.
    Type: Application
    Filed: October 3, 2017
    Publication date: September 13, 2018
    Inventors: Paul S. ANDRY, Huan HU, Katsuyuki SAKUMA
  • Publication number: 20180250676
    Abstract: A deterministic lateral displacement array that includes a channel, within a substrate, having a first sidewall, a second sidewall, and a channel length. A condenser portion that includes an entry port and an exit port. A first array of pillars is disposed between the entry port and the exit port of the condenser portion along the channel length, the first array of pillars operative to drive a first material particle and a second material particle towards the first sidewall of the channel. A separator portion that includes an entry port and an exit port, and a second array of pillars disposed between the entry port and the exit port of the separator portion along the channel length, the pillars operative to drive the first material particle towards the second sidewall of the channel.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: HUAN HU, SUNG CHEOL KIM, JOSHUA T. SMITH, BENJAMIN H. WUNSCH