Patents Assigned to Minnesota Mining & Manufacturing Co.
  • Publication number: 20030161984
    Abstract: An adhesive tape construction is removable from one or more objects to which it is adhered and which is reusably separable within its construction so that an object can be separated from another and subsequently reconnected with one another. The adhesive tape construction can be used to bond the other opposed surfaces of objects, including rigid objects such as a picture frame to a wall, where no portion of the adhesive tape construction projects from between the objects, and which subsequently affords easy separation of the objects without damage to either of them. More specifically, the adhesive tape construction includes a stretch release adhesive tape structure combined with a reusable connector surface.
    Type: Application
    Filed: March 24, 2003
    Publication date: August 28, 2003
    Applicant: Minnesota Mining and Manufacturing Co
    Inventors: James L. Bries, Michael D. Hamerski
  • Patent number: 6411310
    Abstract: The present invention implements in a data processing environment, many of the attributes of paper Post-it® notes. The note program of the present invention need not be resident in an application program, and the notes of the present invention may be moved directly between windows or between regions without being saved in an intermediate memory, may be easily dispensed either from a note dispenser of a window or on a desktop, may overlap the boundary of a window, may be automatically saved, may be attached to a document within a window so that the note moves with the document, may overlap a boundary of a window, may be resized with the constraint that the note may not be resized off of a window, may be moved across a window boundary, and may be attached to an object, such as a character, a word, a sentence, or paragraph of a document.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: June 25, 2002
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: David T. Berquist, Peter M. Eisenberg, Mitchell B. Grunes, Martin A. Kenner, John M. Kruse, Timothy A. Mertens, Cindy L. Munson
  • Patent number: 6063556
    Abstract: A silver halide radiographic element comprising a polymeric film base, at least one silver halide emulsion layer, and at least one antistatic layer adhered to at least one side of said polymeric film base, wherein (1) said silver halide emulsion layer comprises tabular silver halide grains having an average diameter to thickness ratio of at least 3:1, and (2) said antistatic layer comprises a colloidal vanadium oxide and a sulfopolyester.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: May 16, 2000
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Alberto Valsecchi, Renzo Torterolo
  • Patent number: 6054091
    Abstract: A method of making a hook strip having J-shaped hooks that can be used as a mechanical fastener. The method includes using an initial substrate of material formed as an array of upstanding precursor stems having distal tips at their ends opposite a backing. In addition, a heat source adapted for heating and a mechanism for deforming stem tips is provided. The substrate is positioned relative to the heat source such that a portion of the upstanding stems on the array is heated. Subsequently, the substrate is moved to a position relative to the mechanism for deforming to create a hook strip of J-shaped hooks from the heated portion of the upstanding stems. In addition, an article of manufacture, made in accordance with the method, is provided which includes a hook portion of a hook-and-loop type of mechanical fastener.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: April 25, 2000
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Philip Miller, William L. Melbye
  • Patent number: 6044196
    Abstract: An optical device for collecting light and selectively outputting or concentrating the light. A layer has an optical index of referaction n.sub.1, and top, bottom and side surfaces defining an angel of inclination .phi.. A back surface spans the top, bottom and side surface. A first layer is coupled to the bottom surface of the layer and has an index of refraction n.sub.2. The first layer index n.sub.2 causes light input through the back surface of the layer to be preferentially output into the first layer. A second layer is coupled to the bottom of the first layer and selectively causes output of light into ambient. Additional layers, such as alight polarization layer, a polarization converting layer and a post LCD diffuser layer can be used to make preferential use of polarized light of diffuse light having passed through the LCD layer to enhance viewing of the output light.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: March 28, 2000
    Assignee: Minnesota Mining & Manufacturing, Co.
    Inventors: Roland Winston, Robert L. Holman, Benjamin A. Jacobson, Robert M. Emmons, Philip Gleckman
  • Patent number: 6004697
    Abstract: A method of improving certain vanadium oxide formulations is presented. The method concerns fluorine doping formulations having a nominal formula of LiV.sub.3 O.sub.8. Preferred average formulations are provided wherein the average oxidation state of the vanadium is at least 4.6. Herein preferred fluorine doped vanadium oxide materials, electrodes using such materials, and batteries including at least one electrode therein comprising such materials are provided.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: December 21, 1999
    Assignees: Minnesota Mining & Manufacturing Co., Hydro-Quebec Corporation
    Inventors: Michael M. Thackeray, Arthur J. Kahaian, Donald R. Visser, Dennis W. Dees, Roy Benedek
  • Patent number: 5997621
    Abstract: A coating composition which imparts anti-reflective and anti-fog properties to substrates coated therewith. The coating composition utilizes an inorganic metal oxide in combination with particular anionic surfactants. The coating compositions are particularly useful in the manufacture of disposable surgical masks and face shields.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: December 7, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Matthew T. Scholz, William L. Kausch, David R. Boston, Joseph M. Zoborowski
  • Patent number: 5997709
    Abstract: Methods of providing diffusing risers on a fresnel lens die having a plurality of optical facets, wherein adjacent optical facets are separated by a riser, the method including the steps of depositing a difflusing layer on the plurality of optical facets and the risers, and selectively removing the diffusing layer from the plurality of optical facets, wherein the diffusing layer remains substantially intact on the risers. The diffusing layer can be deposited in an electrolyte bath substantially free of grain refiners.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: December 7, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventor: Harlan L. Krinke
  • Patent number: 5988230
    Abstract: A device for consolidating compositions contained in partially filled dual chamber dispensing cartridges includes a body having a pair of passages, and first and second couplers for connecting the body to first and second dual chamber dispensing cartridges. Once the device is connected to two cartridges, an applicator is connected to one of the cartridges and is used to expel any remaining compositions in such cartridge to chambers of the other cartridge. The contents of several partially empty cartridges can be consolidated in this manner so that a subsequent dispensing operation need not be interrupted to replace cartridges.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: November 23, 1999
    Assignee: Minnesota Mining & Manufacturing Co.
    Inventors: Kevin L. Black, Frederick J. Turk, Bruce R. Broyles, Darin J. Meyertholen, John W. Dubbe, James D. Christoff
  • Patent number: 5985537
    Abstract: A photothermographic element comprising a substrate having on at least one side thereof a photothermographic system comprising silver halide spectrally sensitized to the infrared region of the electromagnetic spectrum, a light insensitive silver source, a reducing agent for silver ion, and a binder, said element further comprising at least one layer which contains an infrared-absorbing dye having a central nucleus of the formula ##STR1## wherein n is an integer of 1 to 12,Q is an ionic acidic moiety,and M is a cation, in an amount sufficient as to provide a transmission optical density of at least 0.1 at the wavelength of maximum sensitivity of said sensitized silver halide.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: November 16, 1999
    Assignee: Minnesota, Mining & Manufacturing Co.
    Inventors: James B. Philip, Jr., Charles W. Gomez
  • Patent number: 5981038
    Abstract: The invention discloses a method of preventing transmission of viral pathogens between a source of viral pathogens and a target of said viral pathogens comprising positioning between said source and said target a microporous membrane material comprising (1) a thermoplastic polymer or polytetrafluoroethylene and (2) a water- and oil-repellent fluorochemical compound which provides said membrane with oleophobic, hydrophobic and viral barrier properties.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: November 9, 1999
    Assignee: 3M Innovative Properties Company Minnesota Mining and Manufacturing Co.
    Inventors: William K. Weimer, Gretchen E. Keenan, Robert J. Kinney, James S. Mrozinski, Philip D. Radovanovic
  • Patent number: 5961904
    Abstract: There is provided a thermally stabilized polypropylene melt-blown microfiber acoustical insulation web which has a resistance to thermal degradation at a temperature of 135.degree. C. for at least 10 days. The polypropylene has a thermal stabilizer uniformly distributed within the melt-blown microfiber polymer which polymer when produced is subject to thermal and/or catalytic degradation in the absence of significant levels of thermal stabilizer or antioxidant.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: October 5, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Michael D. Swan, Ruth A. Ebbens
  • Patent number: 5952815
    Abstract: An apparatus and method for regulating the charge voltage of a number of electrochemical cells connected in series is disclosed. Equalization circuitry is provided to control the amount of charge current supplied to individual electrochemical cells included within the series string of electrochemical cells without interrupting the flow of charge current through the series string. The equalization circuitry balances the potential of each of the electrochemical cells to within a pre-determined voltage setpoint tolerance during charging, and, if necessary, prior to initiating charging. Equalization of cell potentials may be effected toward the end of a charge cycle or throughout the charge cycle. Overcharge protection is also provided for each of the electrochemical cells coupled to the series connection.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: September 14, 1999
    Assignees: Minnesota Mining & Manufacturing Co., Hydro-Quebec Corporation
    Inventors: Jean Rouillard, Christophe Comte, Ronald A. Hagen, Orlin B. Knudson, Andre Morin, Guy Ross
  • Patent number: 5935370
    Abstract: The invention discloses a method of preventing transmission of viral pathogens between a source of viral pathogens and a target of said viral pathogens comprising positioning between said source and said target a microporous membrane material comprising (1) a thermoplastic polymer or polytetrafluoroethylene and (2) a water- and oil-repellent fluorochemical compound which provides said membrane with oleophobic, hydrophobic and viral barrier properties.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: August 10, 1999
    Assignee: #M Innovative Properties Company Minnesota Mining and Manufacturing Co.
    Inventors: William K. Weimer, Gretchen E. Keenan, Robert J. Kinney, James S. Mrozinski, Philip D. Radovanovic
  • Patent number: 5910388
    Abstract: The present invention relates to a novel method of producing graphics employing image-enhancing particles electrostatically. The invention also relates to novel electrostatically printable image-enhancing particles.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: June 8, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Bradley R. Ray, William D. Sell
  • Patent number: 5910529
    Abstract: A water based gel guide coat composition and a method of using is provided. The composition comprises:aqueous dispersion(s) comprising a binder(s), aqueous emulsion(s) comprising a binder(s), and/or combinations thereof, having a minimum film forming temperature of 22.degree. C. or less;thickening agent of a type and in a sufficient amount to provide the composition with Bingham plastic properties upon shear;optionally additional water;water dispersible inorganic pigment(s); andoptional pH adjusting agent;the composition pH being about 6 to about 9.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 8, 1999
    Assignee: Minnesota Mining & Manufacturing Co.
    Inventor: Mark R. Wollner
  • Patent number: 5908637
    Abstract: A device for delivering a heparinic anticoagulant across a mucosal surface in order to achieve or maintain a therapeutically effective blood level of the heparinic anticoagulant. The device involves a matrix containing a therapeutically effective amount of a heparinic anticoagulant, and a mucoadhesive or other mechanism for maintaining the matrix in contact with the mucosal surface for a time sufficient to allow release of the heparinic anticoagulant to the mucosal surface.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: June 1, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Luce R. M. Benes, Francoise L. R. B. Horriere
  • Patent number: 5908296
    Abstract: A dental air-water syringe includes a handle and a tip as well as a device for purifying water flowing through the tip. In one embodiment of the invention, the water purifying device is contained within a housing of the tip and optionally includes a number of iodide beads disposed along the length of the housing. In another embodiment of the invention, the device is detachably connected to the tip, and the tip and the device have outer diameters that are approximately equal.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: June 1, 1999
    Assignee: Minnesota Mining & Manufacturing Co.
    Inventors: Cary A. Kipke, Raymond M. Gleason
  • Patent number: 5905826
    Abstract: A conspicuity marking system includes a light guide which has at least one optically reflective surface for propagating light through the light guide and a retroreflective light extractor for extracting light propagating through the light guide and for retroreflecting light from an external light source incident upon the system. Light propagating through the light guide which is transmitted into the light extractor is reflected back through the light guide such that it exits the light guide at a location displaced from the retroreflective light extractor. Light from an external light source which is incident on the system passes through the light guide and is retroreflected toward the light source by the retroreflective light extractor.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: May 18, 1999
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Olester Benson, Jr., David J. Lundin
  • Patent number: RE36811
    Abstract: A method for isolating an environmentally hazardous organic contaminant from a fluid utilizes a solid phase extraction medium comprises a PTFE fibril matrix, and sorptive particles enmeshed in said matrix comprising more than 30 and up to 100 weight percent of porous organic particles, and less than 70 to 0 weight percent of porous (organic-coated or uncoated) inorganic particles, the ratio of sorptive particles to PTFE being in the range of 40:1 to 1:4 by weight. The extraction medium is useful in pesticide, phenolics, and residue of explosives separations. The separations can be efficiently performed in a stacked disk format.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: August 8, 2000
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Craig G. Markell, Donald F. Hagen, James D. Luedtke