Patents by Inventor Patrick R. Fleming

Patrick R. Fleming 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: 7297361
    Abstract: A method for circuit fabrication includes positioning first and second webs of film in proximity to each other, wherein the second web of film defines a deposition mask, and deposition material on the first web of film through the deposition mask pattern defined by the second web of the to create at least a portion of an integrated circuit.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Paul F. Baude, Patrick R. Fleming, Michael A. Haase, Tommie W. Kelley, Dawn V. Muyres, Steven Theiss
  • Publication number: 20070235902
    Abstract: Disclosed herein is a microstructured tool having a microstructured layer having a polymer and a microstructured surface; a nickel layer disposed adjacent the microstructured layer opposite the microstructured surface; and a base layer disposed adjacent the nickel layer opposite the microstructured layer. The microstructured surface may have at least one feature having a maximum depth of up to about 1000 um. Also disclosed herein is a method of making the microstructured tool using laser ablation. The microstructured tool may be used to make articles suitable for use in optical applications.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 11, 2007
    Inventors: Patrick R. Fleming, Paul E. Humpal, Thomas R.J. Corrigan, Todd R. Williams, Tadesse G. Nigatu
  • Publication number: 20070229950
    Abstract: Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. A second layer having a structured surface, for providing an optical function to light passing therethrough, is attached to the first layer. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described.
    Type: Application
    Filed: January 23, 2007
    Publication date: October 4, 2007
    Inventors: Andrew J. Ouderkirk, Shandon D. Hart, Olester Benson, Patrick R. Fleming, Kristin L. Thunhorst
  • Patent number: 7241688
    Abstract: Aperture masks and deposition techniques for using aperture masks are described. In addition, techniques for creating aperture masks and other techniques for using the aperture masks are described. The various techniques can be particularly useful in creating circuit elements for electronic displays and low-cost integrated circuits such as radio frequency identification (RFID) circuits. In addition, the techniques can be advantageous in the fabrication of integrated circuits incorporating organic semiconductors, which typically are not compatible with wet processes.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: July 10, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Paul F. Baude, Patrick R. Fleming, Michael A. Haase, Tommie W. Kelley, Dawn V. Muyres, Steven Theiss
  • Patent number: 7223364
    Abstract: The present invention provides a detection article including at least one fluid control film layer having at least one microstructured major surface with a plurality of microchannels therein. The microchannels are configured for uninterrupted fluid flow of a fluid sample throughout the article. The film layer includes an acquisition zone for drawing the fluid sample into the plurality of microchannels at least by spontaneous fluid transport. The film layer also includes a detection zone having at least one detection element that facilitates detection of a characteristic of the fluid sample within at least one microchannel of the detection zone.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: May 29, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Patrick R. Fleming, Kurt J. Halverson, James G. Bentsen, Gary E. Krejcarek, Koichi Sano
  • Patent number: 7189361
    Abstract: An analytical cell including a lightguide with a plurality of conduits filled with a migration medium. The medium, the lightguide and a surrounding medium have refractive indices selected such that light entering the lightguide is internally reflected within the lightguide to provide substantially uniform illumination of the conduits.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 13, 2007
    Assignees: 3M Innovative Properties Company, Applera Corporation
    Inventors: Larry J. Carson, Joel R. Dufresne, Patrick R. Fleming, Michael C. Lea, Nicholas A. Lee, John Shigeura
  • Patent number: 7166409
    Abstract: A method of increasing the efficiency of a multiphoton absorption process and apparatus. The method includes: providing a photoreactive composition; providing a source of sufficient light for simultaneous absorption of at least two photons; exposing the photoreactive composition to at least one transit of light from the light source; and directing at least a portion of the first transit of the light back into the photoreactive composition using at least one optical element, wherein a plurality of photons not absorbed in at least one transit are used to expose the photoreactive composition in a subsequent transit.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: January 23, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick R. Fleming, Robert J. DeVoe, Catherine A. Leatherdale, Todd A. Ballen, Jeffrey M. Florczak
  • Patent number: 7014988
    Abstract: Methods of fabricating optical elements that are encapsulated in monolithic matrices. The present invention is based, at least in one aspect, upon the concept of using multiphoton, multi-step photocuring to fabricate encapsulated optical element(s) within a body of a photopolymerizable composition. Imagewise, multi-photon polymerization techniques are used to form the optical element. The body surrounding the optical element is also photohardened by blanket irradiation and/or thermal curing to help form an encapsulating structure. In addition, the composition also incorporates one or more other, non-diffusing binder components that may be thermosetting or thermoplastic. The end result is an encapsulated structure with good hardness, durability, dimensional stability, resilience, and toughness.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: March 21, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Catherine A. Leatherdale, Patrick R. Fleming, John E. Potts, Jeffrey M. Florczak
  • Patent number: 6913722
    Abstract: A receptor medium with a sheet having an optically transmissive microembossed imaging surface as one major surface thereof. The receptor medium can receive jettable materials, which include inks, adhesives, biological fluids, chemical assay reagents, particulate dispersions, waxes, and combinations thereof. The microembossed medium unexpectedly solves such common inkjet printing problems as feathering, banding, and mudcracking in inkjet printing systems by controlling how an inkjet drop contacts and dries on an inkjet receptor medium and also Moire' effects but also provides sufficient optical transmissivity to be useful as overhead transparency media, backlit signage, and the like. Clear lines of demarcation between adjoining colors of a pigmented inkjet image graphic can be obtained without creation of the Moire' effects. Methods of making and using the inkjet receptor medium are also disclosed.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: July 5, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Lori P. Engle, Robert T. Fehr, Patrick R. Fleming, Alan G. Miller, Todd R. Williams, Caroline M. Ylitalo
  • Patent number: 6908453
    Abstract: Microneedle devices and methods of manufacturing the microneedle devices. The microneedle devices include microneedles protruding from a substrate, with the microneedles piercing a cover placed over the substrate surface from which the microneedles protrude. The cover and the microneedle substrate together define a capillary volume in fluid communication with the base of each microneedle. One manner of using microneedle arrays of the present invention is in methods involving the penetration of skin to deliver medicaments or other substances and/or extract blood or tissue. Manufacturing methods may include simultaneous application of pressure and ultrasonic energy when piercing the cover with the microneedles.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: June 21, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick R. Fleming, Michael D. Delmore, Luther E. Erickson, Richard H. Ferber
  • Patent number: 6897164
    Abstract: Aperture masks and deposition techniques for using aperture masks are described. In addition, techniques for creating aperture masks and other techniques for using the aperture masks are described. The various techniques can be particularly useful in creating circuit elements for electronic displays and low-cost integrated circuits such as radio frequency identification (RFID) circuits. In addition, the techniques can be advantageous in the fabrication of integrated circuits incorporating organic semiconductors, which typically are not compatible with wet processes.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: May 24, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Paul F. Baude, Patrick R. Fleming, Michael A. Haase, Tommie W. Kelley, Dawn V. Muyres, Steven Theiss
  • Patent number: 6881203
    Abstract: Microneedle arrays, methods of manufacturing microneedles and methods of using microneedle arrays. The microneedles in the microneedle arrays may be in the form of tapered structures that include at least one channel formed in the outside surface of each microneedle. The microneedles may have bases that are elongated in one direction. The channels in microneedles with elongated bases may extend from one of the ends of the elongated bases towards the tips of the microneedles. The channels formed along the sides of the microneedles may optionally be terminated short of the tips of the microneedles. The microneedle arrays may also include conduit structures formed on the surface of the substrate on which the microneedle array is located. The channels in the microneedles may be in fluid communication with the conduit structures. One manner of using microneedle arrays of the present invention is in methods involving the penetration of skin to deliver medicaments or other substances and/or extract blood or tissue.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: April 19, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Michael D. Delmore, Patrick R. Fleming, Douglas A. Huntley, Jamieson C. Keister, Cristina U. Thomas, Richard H. Ferber
  • Patent number: 6855478
    Abstract: Method of fabricating an optical element. A photodefinable composition is provided that includes (i) a hydrophobic, photodefinable polymer, said photodefinable polymer having a glass transition temperature in the cured state of at least about 80° C.; and (ii) a multiphoton photoinitiator system comprising at least one multiphoton photosensitizer and preferably at least one phtoinitiator that is capable of being photosensitized by the photosensitizer. One or more portions of the composition are imagewise exposed to the electromagnetic energy under conditions effective to photodefinably form at least a portion of a three-dimensional optical element.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: February 15, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Catherine A. Leatherdale, Guoping Mao, Patrick R. Fleming, Harvey W. Kalweit
  • Patent number: 6838142
    Abstract: A pressure sensitive adhesive layer with a structured surface, wherein the adhesive layer is capable of being dry laminated to a substrate to form a laminate. The adhesive layer has a haze after lamination, measured according to ASTM D 1003-95, of less than about 50% of the haze of the adhesive layer before lamination. After dry lamination, the adhesive layer has a luminous transmittance of more than about 85%, a haze of less than about 25%, and an opacity of less than about 3%.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Jie Yang, Mieczyslaw H. Mazurek, Patrick R. Fleming, Larry A. Meixner, Haruyuki Mikami
  • Patent number: 6821348
    Abstract: In one embodiment, the invention is directed to aperture mask deposition techniques using aperture mask patterns formed in one or more elongated webs of flexible film. The techniques involve sequentially depositing material through mask patterns formed in the film to define layers, or portions of layers, of the circuit. A deposition substrate can also be formed from an elongated web, and the deposition substrate web can be fed through a series of deposition stations. Each deposition station may have an elongated web formed with aperture mask patterns. The elongated web of mask patterns feeds in a direction perpendicular to the deposition substrate web. In this manner, the circuit creation process can be performed in-line. Moreover, the process can be automated to reduce human error and increase throughput.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Paul F. Baude, Patrick R. Fleming, Michael A. Haase, Tommie W. Kelley, Dawn V. Muyres, Steven Theiss
  • Publication number: 20040223385
    Abstract: A method for enhancing photoreactive absorption in a specified volume element of a photoreactive composition. In one embodiment, the method includes: providing a photoreactive composition: providing a source of light (preferably, a pulsed laser) sufficient for simultaneous absorption of at least two photons by the photoreactive composition, the light source having a beam capable of being divided: dividing the light beam into a plurality of equal path length exposure beams: and focusing the exposure beams in a substantially non-counter propagating manner at a single volume element of the photoreactive composition simultaneously to react at least a portion of the photoreactive composition.
    Type: Application
    Filed: December 12, 2002
    Publication date: November 11, 2004
    Inventors: Patrick R. Fleming, Robert J. De Voe, Catherine A. Leatherdale, Todd A. Ballen, Jeffrey M. Florczak
  • Publication number: 20040124563
    Abstract: A method of increasing the efficiency of a multiphoton absorption process and apparatus. The method includes: providing a photoreactive composition; providing a source of sufficient light for simultaneous absorption of at least two photons; exposing the photoreactive composition to at least one transit of light from the light source; and directing at least a portion of the first transit of the light back into the photoreactive composition using at least one optical element, wherein a plurality of photons not absorbed in at least one transit are used to expose the photoreactive composition in a subsequent transit.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 1, 2004
    Inventors: Patrick R. Fleming, Robert J. DeVoe, Catherine A. Leatherdale, Todd A. Balen, Jeffrey M. Florczak
  • Publication number: 20040126694
    Abstract: Method of fabricating an optical element. A photodefinable composition is provided that includes (i) a hydrophobic, photodefinable polymer, said photodefinable polymer having a glass transition temperature in the cured state of at least about 80° C.; and (ii) a multiphoton photoinitiator system comprising at least one multiphoton photosensitizer and preferably at least one phtoinitiator that is capable of being photosensitized by the phtosensitizer. One or more portions of the composition are imagewise exposed to the electromagnetic energy under conditions effective to photodefinably form at least a portion of a three-dimensional optical element.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 1, 2004
    Inventors: Robert J. Devoe, Catherine A. Leatherdale, Guoping Mao, Patrick R. Fleming, Harvey W. Kalweit
  • Publication number: 20040012872
    Abstract: Methods for producing a region of at least partially reacted material in a photoreactive composition and apparatus. The methods include: providing a photoreactive composition; providing a source of sufficient light for simultaneous absorption of at least two photons by the photoreactive composition; providing an exposure system capable of inducing image-wise multiphoton absorption; generating a non-random three-dimensional pattern of light by means of the exposure system; and exposing the photoreactive composition to the three-dimensional pattern of light generated by the exposure system to at least partially react a portion of the material in correspondence with the non-random three-dimensional pattern of light incident thereon.
    Type: Application
    Filed: December 12, 2002
    Publication date: January 22, 2004
    Inventors: Patrick R Fleming, Robert J. DeVoe, Nicholas A Stacey, Catherine A Leatherdale, Robert D. DeMaster, Todd A. Ballen, Jeffrey M Florczak
  • Patent number: 6649249
    Abstract: A receptor medium with a sheet having a random microembossed imaging surface as one major surface thereof. The receptor medium can receive jettable materials, which include inks, adhesives, biological fluids, chemical assay reagents, particulate dispersions, waxes, electrically, thermally, or magnetically modifiable materials, and combinations thereof. The random microembossed medium unexpectedly solves such common inkjet printing problems as feathering, banding, and mudcracking in inkjet printing systems by controlling how an inkjet drop contacts and dries on an inkjet receptor medium and also Moire' effects. Clear lines of demarcation between adjoining colors of a pigmented inkjet image graphic can be obtained without creation of the Moire' effects. Methods of making and using the inkjet receptor medium are also disclosed.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: November 18, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Lori P. Engle, Robert T. Fehr, Patrick R. Fleming, Paul D. Graham, Douglas A. Huntley, Verna J. LeMire, Jeffrey L. Solomon, Todd R. Williams, Caroline M. Ylitalo