Patents by Inventor Steven D. Yau

Steven D. Yau 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: 6838512
    Abstract: A cold shrink article including a fluoroelastomer composition comprising a first fluoroterpolymer having a weight average molecular weight centered from about 107 to about 108. A second fluoroterpolymer included in the fluoroelastomer composition has a weight average molecular weight centered at 104. The first fluoroterpolymer combines with the second fluoroterpolymer to provide a mixed terpolymer. Other components of the fluoroelastomer composition include a processing aid, a filler, an oil, and a curative. The fluoroelastomer composition upon curing at an elevated temperature provides the cold shrink article that has a permanent set value of 21% or less.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Robert E. Eggers, James C. Margl, Steven D. Yau
  • Publication number: 20040249054
    Abstract: A cold shrink article including a fluoroelastomer composition comprising a first fluoroterpolymer having a weight average molecular weight centered from about 107 to about 108. A second fluoroterpolymer included in the fluoroelastomer composition has a weight average molecular weight centered at 104. The first fluoroterpolymer combines with the second fluoroterpolymer to provide a mixed terpolymer. Other components of the fluoroelastomer composition include a processing aid, a filler, an oil, and a curative. The fluoroelastomer composition upon curing at an elevated temperature provides the cold shrink article that has a permanent set value of 21% or less.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Robert E. Eggers, James C. Margl, Steven D. Yau
  • Publication number: 20030215592
    Abstract: A tubular article comprising a multi-wall extruded tube, one embodiment of which is a dual-wall extruded tube including an elastomeric outer wall having a first color and an elastomeric inner wall having a second color. The dual-wall extruded tube may be formed by co-extrusion of the elastomeric outer wall and the elastomeric inner wall to provide a bond between the two walls. Visible indicia may be formed in the tubular article by removal of selected portions of the elastomeric outer wall using laser ablation to reveal the second color of the elastomeric inner wall. The first color differs from the second color to provide high contrast of the indicia from the first color of the elastomeric outer wall. A tubular article according to the present invention is expandable for placement on a core member in an expanded condition wherein the bond between the elastomeric outer wall and the elastomeric inner wall remains substantially unchanged.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Donald R. Gilde, James L. Mayne, Steven D. Yau
  • Patent number: 5914186
    Abstract: A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, and at least one thermal stabilizer selected from the group consisting of hindered amines, salts of substituted toluimidazoles, and mixtures thereof, said substituted toluimidazoles having the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, a methyl group, an ethyl group and a propyl group, R.sub.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: June 22, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven D. Yau, Gustav Gutman
  • Patent number: 5885708
    Abstract: A latex antistatic adhesive comprising an emulsion of polymerized microdrops dispersed in an aqueous medium, having an average diameter less than about 0.1 .mu.m, and a glass transition temperature (Tg) of from about -120.degree. C. to about 25.degree. C., wherein the polymerized microdrops are derived from emulsion microdrops of reactive monomers, said adhesive including at least one (meth)acrylic monomer, at least one polar monomer, at least one reactive oligomer and at least 1% of a lithium salt.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: March 23, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ying-Yuh Lu, Steven D. Yau
  • Patent number: 5631079
    Abstract: A heat-resistant anti-static pressure-sensitive adhesive tape comprising a substrate having coated thereon an acrylic microparticulate adhesive having an average diameter of at least about 1 micrometer, wherein the microparticles have a surface bearing thereon a conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, said adhesive being adhered to said substrate by means of a primer, said primer comprising at least one phenolic resin and at least one rubbery compound, said adhesive tape being capable of surviving immersion in molten solder for at least about 5 seconds.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: May 20, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gustav Gutman, Steven D. Yau
  • Patent number: 5508107
    Abstract: A water-resistant, anti-static pressure-sensitive adhesive tape suitable for use as a wafer dicing tape comprising a flexible substrate having opposing surfaces, at least one surface bearing thereon a removable, aziridine-crosslinked microparticulate adhesive comprised of microparticles having a surface bearing thereon an ionic conductive material formed from a polymer electrolyte base polymer, and at least one ionic salt selected from the group consisting of salts of alkali metals and salts of alkaline earth metals, wherein said microparticles have an average diameter of at least about 1 micrometer, said adhesive having an adhesion to steel of from about 0.5 Newtons/100 mm (N/100 mm) to about 10 N/100 mm.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: April 16, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gustav Gutman, Steven D. Yau
  • Patent number: 5080942
    Abstract: Compositions and a process for manufacturing an elastomeric, low modulus pre-stretched tubular article supported by a removable core. The article has a low Shore A hardness value and a low modulus which allows a large expansion ratio and an increased wall thickness.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: January 14, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Steven D. Yau