Patents by Inventor Gwo Shin Swei

Gwo Shin Swei 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: 20240018370
    Abstract: A process that controls sizes, shapes, and densities of the abrasive composite structures on a substrate by controlling the properties of the slurry (more than just the number and size of the particles in the slurry), controlling wet coating thickness of the slurry on the substrate, and controlling drying conditions of the slurry. Similar to how mud dries and cracks when arid and parched, the controlled drying of the slurry produces cracks as the slurry dries. These cracks form structures that are separated by grooves (or valleys), which form the abrasive surface.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 18, 2024
    Inventors: Gwo Shin Swei, George Shuai, Isaac Shuai
  • Patent number: 11865663
    Abstract: A polishing pad or polishing tape with abrasive particles (e.g., diamond, aluminum-oxide, silicon-carbide, etc.) having an average particle size of between approximately 0.5 micrometers (?m) and 5.0 ?m, which are strongly adhered with water-insoluble binders to a flexible and lens-conformable substrate having a cushion so that there is little-to-no shedding or release of the particles from the substrate.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: January 9, 2024
    Inventors: George Shuai, Gwo Shin Swei
  • Publication number: 20190344395
    Abstract: A polishing pad or polishing tape with abrasive particles (e.g., diamond, aluminum-oxide, silicon-carbide, etc.) having an average particle size of between approximately 0.5 micrometers (?m) and 5.0 ?m, which are strongly adhered with water-insoluble binders to a flexible and lens-conformable substrate having a cushion so that there is little-to-no shedding or release of the particles from the substrate.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Inventors: George Shuai, Gwo Shin Swei
  • Publication number: 20080163557
    Abstract: A UV-polymerizable formulation comprising a polymerizable formulation and an aluminum trihydrate filler with a particle size of from 1 to 10 micrometers. The formulation is intended for use in the production of coated abrasives can be used to produce a very much thicker coating if a UV-transparent filler is used.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 10, 2008
    Applicant: Saint-Gobain Abrasives, Inc.
    Inventors: Anthony C. Gaeta, Gwo Shin Swei, Edmund F. Butryn
  • Patent number: 7108594
    Abstract: Abrasive discs for use with orbital sanders having dust extractor systems are provided in which the discs have an annular perforated zone intermediate between the center and the circumference of the disc in a location corresponding to the location of dust extractor ports in the cooperating backup pad.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 19, 2006
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventor: Gwo Shin Swei
  • Patent number: 7108596
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures can be modified to convey information by changing the appearance, for example by changing the size, shape or spacing of the structures to create patterns conveying the information.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: September 19, 2006
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei
  • Patent number: 6835220
    Abstract: An abrasive is give a top coat layer consisting essentially of an inorganic, anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected from the group consisting of magnesium silicates, potassium aluminum silicates, aluminum silicates, and calcium silicates. In one embodiment, the magnesium silicates include talc, the potassium aluminum silicates include micas, the aluminum silicates include clays, and the calcium silicates include wollastonite. The silicas can be selected from the group consisting of fused silica, fumed silica, and precipitated amorphous silica. The metal carbonates can include calcium carbonate. The metal sulfates can include hydrous calcium sulfate or anhydrous calcium sulfate.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: December 28, 2004
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Gwo Shin Swei, Anthony C. Gaeta, W. Patrick Yang, Jony Wijaya
  • Patent number: 6824876
    Abstract: An adhesive for use in coated abrasive belt joints includes a blocked isocyanate, urethane system. The blocking agent can include phenols, oximes, alcohols, caprolactam, and diethyl malonate. The adhesive can be crosslinked with amine or alcohol. A coated abrasive belt is formed by attaching a plurality of abrasive particles to a first surface of a backing layer. A size coat is deposited over the abrasive particles to form a coated abrasive. The coated abrasive is cut to form a strip having a first end and a second end. The ends of the strip are joined with an adhesive including a blocked isocyanate, urethane system.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: November 30, 2004
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Gwo Shin Swei, Jony Wijaya, Shyiguei Hsu
  • Patent number: 6685756
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures wherein the structures comprise a cured binder resin in an amount that is from 58 to 75% by volume of the volume of binder plus solid particles dispersed within the binder.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: February 3, 2004
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei
  • Publication number: 20030207658
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures can be modified to convey information by changing the appearance, for example by changing the size, shape or spacing of the structures to create patterns conveying the information.
    Type: Application
    Filed: June 13, 2003
    Publication date: November 6, 2003
    Applicant: Saint-Gobain Abrasives, Inc.
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei
  • Patent number: 6599177
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures can be modified to convey information by changing the appearance, for example by changing the size, shape or spacing of the structures to create patterns conveying the information.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: July 29, 2003
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei
  • Publication number: 20030066246
    Abstract: An abrasive is give a top coat layer consisting essentially of an inorganic, anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected from the group consisting of magnesium silicates, potassium aluminum silicates, aluminum silicates, and calcium silicates. In one embodiment, the magnesium silicates include talc, the potassium aluminum silicates include micas, the aluminum silicates include clays, and the calcium silicates include wollastonite. The silicas can be selected from the group consisting of fused silica, fumed silica, and precipitated amorphous silica. The metal carbonates can include calcium carbonate. The metal sulfates can include hydrous calcium sulfate or anhydrous calcium sulfate.
    Type: Application
    Filed: April 12, 2002
    Publication date: April 10, 2003
    Inventors: Gwo Shin Swei, Anthony C. Gaeta, W. Patrick Yang, Jony Wijaya
  • Patent number: 6544598
    Abstract: The use of a solid state waveform generator together with a suitable non-inverting amplifier provides a very versatile system for depositing particles on a substrate by an upward deposition, or “UP”, technique.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: April 8, 2003
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Gwo Shin Swei, Sylvain Petigny
  • Publication number: 20030059528
    Abstract: The use of a solid state waveform generator together with a suitable non-inverting amplifier provides a very versatile system for depositing particles on a substrate by an upward deposition, or “UP”, technique.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 27, 2003
    Inventors: Gwo Shin Swei, Sylvain Petigny
  • Publication number: 20030056443
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures wherein the structures comprise a cured binder resin in an amount that is from 58 to 75% by volume of the volume of binder plus solid particles dispersed within the binder.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 27, 2003
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei
  • Patent number: 6511713
    Abstract: An electrostatic abrasive grain upward projection deposition process utilizing opposed electrodes produces a patterned abrasive surface by controlling the local intensity of the field by which the grain is projected on to a substrate.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: January 28, 2003
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Mark E. Mathisen, Gwo Shin Swei
  • Publication number: 20030003309
    Abstract: An adhesive for use in coated abrasive belt joints includes a blocked isocyanate, urethane system. The blocking agent can include phenols, oximes, alcohols, caprolactam, and diethyl malonate. The adhesive can be crosslinked with amine or alcohol.
    Type: Application
    Filed: June 21, 2001
    Publication date: January 2, 2003
    Inventors: Gwo Shin Swei, Jony Wijaya, Shyiguei Hsu
  • Publication number: 20030003856
    Abstract: Abrasive discs for use with orbital sanders having dust extractor systems are provided in which the discs have an annular perforated zone intermediate between the center and the circumference of the disc in a location corresponding to the location of dust extractor ports in the cooperating backup pad..
    Type: Application
    Filed: March 16, 2001
    Publication date: January 2, 2003
    Inventor: Gwo Shin Swei
  • Patent number: 6500493
    Abstract: Fine abrasive powders can be made more free-flowing and better adapted to electrostatic upward projection deposition in the production of coated abrasives by the control of the volume resistivity of the powder to a level that is not greater than 1014 ohms.cm by incorporation of a silica powder.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 31, 2002
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Gwo Shin Swei, Sylvain Petigny
  • Publication number: 20020197945
    Abstract: A coated abrasive having an abrasive surface comprising a plurality of individual abrasive structures can be modified to convey information by changing the appearance, for example by changing the size, shape or spacing of the structures to create patterns conveying the information.
    Type: Application
    Filed: June 25, 2001
    Publication date: December 26, 2002
    Inventors: Damien Cyrille Nevoret, Gwo Shin Swei