Patents Represented by Attorney, Agent or Law Firm Gary L. Griswold
  • Patent number: 6943138
    Abstract: To provide an oil clearing sheet for makeup, which is superior in capacity to absorb oil and can confirm the wiping state of sebum easily and clearly, and which can afford sufficient wiping feeling and satisfactory feeling to users. An oil clearing sheet for makeup, comprising a porous stretched film of a plastic material, characterized in that the porous stretched film comprises at least two porous stretched films, which are the same or different, and adjacent films differ in brightness.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: September 13, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Yasuhiro Kono, Kazunori Kondoh
  • Patent number: 6875710
    Abstract: Methods of manufacturing composite webs including a substrate with one or more reinforcing discrete polymeric regions located on or within the composite web are disclosed. Molten nonelastomeric thermoplastic material of the discrete polymeric region is forced against the substrate by a transfer roll. If the substrate is porous, fibrous, etc., a portion of the nonelastomeric thermoplastic composition may infiltrate the substrate and/or encapsulate fibers of the substrate. The composite webs also include elastomeric thermoplastic material in discrete polymeric regions on or within the composite web.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: April 5, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Bradley W. Eaton, Byron M. Jackson, Leigh E. Wood, Scott J. Tuman
  • Patent number: 6814912
    Abstract: A method for forming a unitary polymeric projection or fastener comprising a base layer, and a multiplicity of spaced projections or hook members projecting from the upper surface of the unitary base layer the method generally including extruding of forming a thermoplastic resin through a die plate or mold. A die plate, if used, is shaped to form a base layer and spaced ridges, projecting above a surface of the base layer. When the die forms the spaced ridges or ribs the cross sectional shape of the projections are formed by the die plate. The ridges are then cut at spaced locations along their lengths to form discrete cut portions of the ridges. The cut portions are then heat treated resulting in shrinkage of at least a portion of at least the cut portion thickness by from 5 to 90 percent, preferably 30 to 90 percent thereby forming discrete upstanding projections.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 9, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Ronald W. Ausen, Jayshree Seth
  • Patent number: 6797028
    Abstract: There is provided in a standard ceiling system, having suspension rails or elements a movable air delivery diffuser resting on the suspension elements and a filter panel inserted into and retained between the suspension elements and the air delivery diffuser. The filter panel has a filter frame and an attached filter designed to be inserted into and retained on the suspension elements of the suspension ceiling. The filter frame has an inner face and an outer face with a filter media retained in the filter frame. The outer edges of the filter media are located and retained adjacent the filter frame inner face. The filter frame outer face has a flexible perimeter flange projecting outwardly from an uppermost portion of the filter frame outer face. This flexible perimeter flange can bend inwardly so as to be substantially flush with said frame outer face and can then flex back outward to engage the suspension elements.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: September 28, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Patent number: 6780272
    Abstract: There is provided a process for forming profiled elastic laminates suitable for forming profiled elastic ear portions. The process comprises the steps of providing a continuous length of at least one elastic web material having a first width and a continuous length of a first extensible nonelastic web having a second width. The extensible web is extensible in at least the width dimension. The at least one elastic web material and the first extensible nonelastic web are joined to form a first laminate. The first laminate is cut into at least two adjacent continuous lengths of at least two nested profiled laminates. The nested profiled laminates each have at least one profiled edge. Adjacent profiled edges of adjacent profiled laminates are substantial negatives of each other. The adjacent profiled laminates are then physically separated from each other.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: August 24, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Leigh E. Wood
  • Patent number: 6773718
    Abstract: There is provided an oil absorbing wipe material suitable for wiping a users' skin or hair and a method for their manufacture. The wipes comprise at least an oil absorbing porous film-like substrate of a thermoplastic material. Generally, the wipe changes transparency or color (a change in L* of about 10 or more) when loaded with oil to provide an oil absorption indication functionality. The wipe is formed by (a) providing a porous film-like substrate of a thermoplastic material capable of absorbing facial or body oils and changing transparency or color, and (b) coating the porous substrate with oil, either continuously or in regions, wherein the oil coating is not sufficient to change the transparency or color of the substrate such that it loses its oil absorption indication functionality. This oil coating being of a nature such that the coated porous substrate has an increased oil absorption indicating functionality.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: August 10, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Jayshree Seth, Hiroto Katagiri, Hiroshi Sakurai
  • Patent number: 6773475
    Abstract: To provide an abrasive material which is excellent in loading resistance and durability, allows no attachments to attach to an abraded surface even when the end surface of the optical fiber is abraded, and is particularly suited for use in abrading a hard material such as an end surface of an optical fiber connector effectively and smoothly into a predetermined shape. The present invention provides an abrasive material for abrading an end surface of an optical fiber connector into a predetermined shape, the abrasive material having a base material (101) and an abrasive layer (102) disposed on the base material, the abrasive layer having a top layer (105) comprising an abrasive composite containing abrasive grains and a binder and a foot portion (106) comprising a binder in the absence of abrasive particles, the abrasive layer having a three-dimensional structure constructed with a plurality of regularly arranged three-dimensional elements (104) having a predetermined shape.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: August 10, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Michihiro Ohishi
  • Patent number: 6767202
    Abstract: Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a modified undulating helical pattern. The modified helical pattern results in the distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increasing and decreasing at least once when moving in one direction about a circumference of the base roll.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: July 27, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Michael R. Gorman, Thomas R. LaLiberte
  • Patent number: 6762139
    Abstract: The invention comprises a flexible adsorbent-loaded filter formed from a flexible support web and attached adsorbent particles. The adsorbent-loaded filter has open filter cells which are defined by the support web and the attached adsorbent particles and are random in size and orientation through the length and depth of the filter. The support web is formed of substantially nonlinear filaments that randomly intersect. The adsorbent particles largest average cross sectional dimension is smaller than the average diameter of the pores of the support web. When the flexible adsorbent loaded filter is flexed about a radius of curvature 20 mm, the percent increase in pressure drop is less than 100 percent when measured at a face velocity of 0.25 m/s.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: July 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Michael R. Strommen
  • Patent number: 6758884
    Abstract: A filtration system for filtering particulates from air. A plurality of point ionization sources are positioned in the proximity of the periphery of an air flow channel and being oriented to generate ions in the proximity of the air flow channel in a direction generally upstream from each respective one of the plurality of point ionization sources. A particulate collection surface is positioned within the air flow channel in a downstream direction from the plurality of point ionization sources. The particulate collection surface is electrostatically charged in an opposite direction with respect to ground than the electrical charge of the ions. An ion trap is positioned within the air flow channel between the plurality of ionization sources and the particulate collection surface. The ion trap is relatively electrically neutral as compared with the particulate collection surface and the ions.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: July 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Zhiqun Zhang, Robert M. Swinehart
  • Patent number: 6752889
    Abstract: A filtration media array is provided having at least one contoured polymeric film layer having surface structures. The film layers may be configured as a stack that has the contoured film layer defining a plurality of ordered inlet openings through a face of the stack and corresponding air pathways, thereby forming an open, porous volume. The air pathways may be defined by a plurality of flow channels formed by the contours of the structured contoured film layers.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: June 22, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas I. Insley, Todd W. Johnson
  • Patent number: 6746311
    Abstract: A multi-layered polishing pad for modifying a surface of a workpiece, such as a semiconductor wafer, that reduces the effort, time and cost involved with pad replacement. The polishing pad includes a polishing layer, at least one sub-pad layer adjacent the polishing layer, and an attachment layer interposed between and releasably joining the polishing layer and at least a portion of the at least one sub-pad layer. The at least one sub-pad layer may include a plurality of layers, such as at least one resilient layer, at least one rigid layer, and/or at least one layer that has both rigid and resilient characteristics. The release layer may be interposed between the polishing layer and the sub-pad or between adjacent layers of the sub-pad. Multiple release layers may be included that are interposed between the polishing layer and layers of the sub-pad, as desired.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: June 8, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Carl R. Kessel
  • Patent number: D500671
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: January 11, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Michael W. Mills, Robert D. Kampfer
  • Patent number: D505063
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: May 17, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Byron M. Jackson
  • Patent number: D511450
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 15, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Jayshree Seth
  • Patent number: D490633
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: June 1, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kazunori Kondoh, Hiroto H. Katagiri, Gene H. Shipman
  • Patent number: D491655
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: June 15, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Zhiqun Zhang, Robert M. Swinehart
  • Patent number: D492019
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: June 22, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Zhiqun Zhang, Robert M. Swinehart
  • Patent number: D496854
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 5, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Alan J. Sipinen
  • Patent number: D498843
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: November 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: David M. Kielb, Douglas A. Swenson