Patents by Inventor Aijun Zhu

Aijun Zhu 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: 12125185
    Abstract: Systems, methods, and computer-readable media to reconstruct thin wall features of domain features in images, which are marginally resolved by a multi-dimensional image, using geometrical continuity. The technique permits reconstruction of features such as structure walls that have a variable thickness, where a thin portion of the wall feature is marginally resolved by an image due to resolution limitations, and the marginally resolved portion of the feature is incompletely segmented. Using the systems, methods, and computer-readable media, such a wall feature can be recognized as a broken wall that misrepresents the completeness of the feature, and can be reconstructed as a completed wall feature.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: October 22, 2024
    Assignee: DigiM Solution LLC
    Inventors: Shuang Zhang, Aijun Zhu
  • Publication number: 20240003797
    Abstract: Embodiments determine the density of materials and objects imaged using computed tomography (CT). An embodiment co-images a material of unknown density with a calibrant of known density. The digitally reconstructed CT images are segmented into the unknown material phase and the known material phases of the calibrant. Image intensity histograms of the unknown material are obtained. Using the known calibrant densities, an intensity-density mapping is calculated to determine the unknown material density based on its measured CT intensity. The method described herein utilizes a novel deconvolution of the intensity histograms to correct for CT imaging artifacts that impact the material phase intensities. The density of micronized materials and features such as particles, microspheres, porosity, and multiphase composites which are difficult to measure with conventional techniques can be measured using the embodiments.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 4, 2024
    Inventors: Andrew Garrison Clark, Jeffrey Michael Wong, Aijun Zhu, Shuang Zhang
  • Patent number: 11149880
    Abstract: A composite tube includes a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C. and a second layer adjacent to the first layer, the second layer including an extruded silicone material. Further included is a method of forming the composite tube which includes providing a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C.; receiving, by an extrusion system, a silicone material; forming, by the extrusion system, a second layer including the silicone material adjacent to the first layer; and irradiating the silicone material with a radiation source to substantially cure the silicone material.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 19, 2021
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Adam P. Nadeau, Michael J. Tzivanis, Michael E. Cahill, Robert D. Schwenker, Ashok Mohanty, Aijun Zhu
  • Patent number: 11142736
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: October 12, 2021
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Publication number: 20210304391
    Abstract: Systems, methods, and computer-readable media to reconstruct thin wall features of domain features in images, which are marginally resolved by a multi-dimensional image, using geometrical continuity. The technique permits reconstruction of features such as structure walls that have a variable thickness, where a thin portion of the wall feature is marginally resolved by an image due to resolution limitations, and the marginally resolved portion of the feature is incompletely segmented. Using the systems, methods, and computer-readable media, such a wall feature can be recognized as a broken wall that misrepresents the completeness of the feature, and can be reconstructed as a completed wall feature.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 30, 2021
    Inventors: Shuang Zhang, Aijun Zhu
  • Publication number: 20200339927
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Patent number: 10711235
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 14, 2020
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Publication number: 20200114604
    Abstract: An apparatus for forming a silicone article is disclosed. The apparatus includes an pumping system to deliver the silicone formulation to a die, the silicone formulation having a viscosity of less than about 2,000,000 centipoise; the die having a distal end, a proximal end, and a channel there between, wherein the silicone formulation flows through the channel of the die; and a source of radiation energy, wherein the radiation energy substantially cures the silicone formulation as the silicone formulation flows out the channel of the die to form the silicone article. The present disclosure further includes a method of forming the silicone article, a silicone tube, and a silicone extrudate.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Aijun ZHU, Adam P. NADEAU, Heidi LENNON
  • Publication number: 20190016017
    Abstract: An apparatus for forming an injection molded article is disclosed. The apparatus includes a pumping system to deliver a silicone formulation to a mold, the silicone formulation having a viscosity of about 50,000 centipoise to about 2,000,000 centipoise. The mold has an exterior housing and an interior cavity therein, wherein the silicone formulation flows into the cavity of the mold. The apparatus further includes a source of radiation energy, wherein the radiation energy substantially cures the silicone formulation within the cavity of the mold to form the injection molded article. The present disclosure further includes a method of forming the injection molded article and a mold for an injection molded article.
    Type: Application
    Filed: June 13, 2018
    Publication date: January 17, 2019
    Inventors: Boris L SEREBRENNIKOV, Aijun ZHU, Aziz MAHFOUD-FAMILIA
  • Publication number: 20180312793
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Application
    Filed: March 27, 2018
    Publication date: November 1, 2018
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Patent number: 9926524
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 27, 2018
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Publication number: 20160177247
    Abstract: The invention describes a gas permeable fluoropolymer and silicone material used in the construction of cell culture bags.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Inventors: Sarah Louise Clark, Natasha Anna Lundgren, Michael John Tzivanis, Aijun Zhu
  • Publication number: 20160178091
    Abstract: A composite tube includes a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C. and a second layer adjacent to the first layer, the second layer including an extruded silicone material. Further included is a method of forming the composite tube which includes providing a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C.; receiving, by an extrusion system, a silicone material; forming, by the extrusion system, a second layer including the silicone material adjacent to the first layer; and irradiating the silicone material with a radiation source to substantially cure the silicone material.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Adam P. NADEAU, Michael J. TZIVANIS, Michael E. CAHILL, Robert D. SCHWENKER, Ashok MOHANTY, Aijun ZHU
  • Publication number: 20150091218
    Abstract: An apparatus for forming an injection molded article is disclosed. The apparatus includes a pumping system to deliver a silicone formulation to a mold, the silicone formulation having a viscosity of about 50,000 centipoise to about 2,000,000 centipoise. The mold has an exterior housing and an interior cavity therein, wherein the silicone formulation flows into the cavity of the mold. The apparatus further includes a source of radiation energy, wherein the radiation energy substantially cures the silicone formulation within the cavity of the mold to form the injection molded article. The present disclosure further includes a method of forming the injection molded article and a mold for an injection molded article.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Boris L. Serebrennikov, Aijun Zhu, Aziz Mahfoud-Familia
  • Publication number: 20150093530
    Abstract: The disclosure is directed to a silicone article. The silicone article includes a silicone composition, the silicone composition including a silicone matrix component, a fumed silica filler; and a vinyl-terminated silicone polymer having a viscosity of about 500 centipoise to about 5000 centipoise, wherein the silicone article has a turbidity of less than about 0.3 nephelometric turbidity units (NTU). The disclosure is further directed to a tube and to a method of forming the article.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Brian J. Ward, Ran Ding, Aijun Zhu
  • Patent number: 8729177
    Abstract: There is provided silicone gel-forming composition comprising a unique combination of polyorganosiloxane and organohydrogenpolysiloxane, which can produce silicone gel with improved hysteresis.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 20, 2014
    Assignee: Momentive Performance Materials Inc.
    Inventors: Aijun Zhu, David Rene Lamb
  • Publication number: 20140050871
    Abstract: An apparatus for forming a silicone article is disclosed. The apparatus includes an pumping system to deliver the silicone formulation to a die, the silicone formulation having a viscosity of less than about 2,000,000 centipoise; the die having a distal end, a proximal end, and a channel there between, wherein the silicone formulation flows through the channel of the die; and a source of radiation energy, wherein the radiation energy substantially cures the silicone formulation as the silicone formulation flows out the channel of the die to form the silicone article. The present disclosure further includes a method of forming the silicone article, a silicone tube, and a silicone extrudate.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Inventors: Aijun Zhu, Adam P. Nadeau, Heidi Sardinha
  • Publication number: 20110251321
    Abstract: There is provided silicone gel-forming composition comprising a unique combination of polyorganosiloxane and organohydrogenpolysiloxane, which can produce silicone gel with improved hysteresis.
    Type: Application
    Filed: October 31, 2006
    Publication date: October 13, 2011
    Inventors: Aijun Zhu, David Rene Lamb
  • Publication number: 20110117152
    Abstract: A silicone rubber exhibiting antimicrobial efficacy contains: a) at least one silicone rubber derived from a curable silicone rubber-forming composition; b) at least one silver-containing antimicrobial agent incorporated in silicone rubber (a) in X weight percent amount; and, c) at least one carboxylic acid incorporated in silicone rubber (a) in Y weight percent amount, silver-containing antimicrobial agent (b) when incorporated by itself in silicone rubber (a) in an amount of X+Y weight percent therein and carboxylic acid (c) when incorporated by itself in silicone rubber (a) in an amount of X+Y weight percent therein imparting no significant antimicrobial activity to silicone rubber (a) but in the combination therein of up to X weight percent silver-containing antimicrobial agent (b) and up to Y weight percent carboxylic acid (c) imparting significant antimicrobial activity to silicone rubber (a), such activity being exhibited at the interface of an exposed surface of silicone rubber (a) and a microbe-popul
    Type: Application
    Filed: March 31, 2008
    Publication date: May 19, 2011
    Inventors: Aijun Zhu, Yi-feng Wang
  • Patent number: 7767754
    Abstract: There is provided silicone gel-forming composition comprising a unique combination of polyorganosiloxane and organohydrogenpolysiloxane, which can produce silicone gel with improved hysteresis.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: August 3, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Aijun Zhu, David Rene Lamb