Patents by Inventor Jeffrey M. Florczak
Jeffrey M. Florczak 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).
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Patent number: 10658096Abstract: A multilayer magnetic sheet is described which comprises a plurality of stacked magnetic component layers separated by first electrically insulating layers. Each of the plurality of magnetic component layers comprises a plurality of isolated magnetic sublayers having a magnetic layer thickness of less than one micron. The multilayer magnetic sheet has a magnetic fraction between about 5% and about 80%; a total magnetic thickness of greater than or equal to 5 microns; and a relative composite permeability of greater than about 20.Type: GrantFiled: February 9, 2017Date of Patent: May 19, 2020Assignee: 3M Innovative Properties CompanyInventors: Xiaoming Kou, Michael S. Graff, Jeffrey M. Florczak, Steven L. Johnson, Rui Yang, Carlos A. Barrios, Steven D. Theiss, Kevin W. Gotrik
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Publication number: 20190035523Abstract: A multilayer magnetic sheet is described which comprises a plurality of stacked magnetic component layers separated by first electrically insulating layers. Each of the plurality of magnetic component layers comprises a plurality of isolated magnetic sublayers having a magnetic layer thickness of less than one micron. The multilayer magnetic sheet has a magnetic fraction between about 5% and about 80%; a total magnetic thickness of greater than or equal to 5 microns; and a relative composite permeability of greater than about 20.Type: ApplicationFiled: February 9, 2017Publication date: January 31, 2019Inventors: Xiaoming Kou, Michael S. Graff, Jeffrey M. Florczak, Steven L. Johnson, Rui Yang, Carlos A. Barrios, Steven D. Theiss, Kevin W. Gotrik
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Patent number: 8530118Abstract: 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, multiphoton 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: GrantFiled: August 21, 2009Date of Patent: September 10, 2013Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Catherine A. Leatherdale, Jeffrey M. Florczak, Patrick R. Fleming, John E. Potts
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Patent number: 8057980Abstract: Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.Type: GrantFiled: December 20, 2007Date of Patent: November 15, 2011Inventors: Douglas S. Dunn, Robert L. W. Smithson, Robert T. Krasa, Michael W. Dolezal, Jeffrey M. Florczak, Stephen P. Maki, Richard M. Osgood, III
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Patent number: 8004767Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: GrantFiled: July 27, 2009Date of Patent: August 23, 2011Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Patent number: 7790353Abstract: 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: GrantFiled: June 14, 2001Date of Patent: September 7, 2010Assignee: 3M Innovative Properties CompanyInventors: Patrick R. Fleming, Robert J. DeVoe, Catherine A. Leatherdale, Todd A. Ballen, Jeffrey M. Florczak
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Publication number: 20100027956Abstract: 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, multiphoton 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: ApplicationFiled: August 21, 2009Publication date: February 4, 2010Inventors: Robert J. DeVoe, Catherine A. Leatherdale, Jeffrey M. Florczak, Patrick R. Fleming, John E. Potts
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Publication number: 20090284840Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: ApplicationFiled: July 27, 2009Publication date: November 19, 2009Inventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Patent number: 7601484Abstract: 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: GrantFiled: November 18, 2005Date of Patent: October 13, 2009Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Catherine A. Leatherdale, Jeffrey M. Florczak, Patrick R. Fleming, John E. Potts
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Patent number: 7583444Abstract: A process for making a microlens array or a microlens array masterform comprises (a) providing a photoreactive composition, the photoreactive composition comprising (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses, each of the microlenses having a principal axis and a focal length, and at least one of the microlenses being an aspherical microlens.Type: GrantFiled: December 21, 2005Date of Patent: September 1, 2009Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Dora M. Paolucci, Craig R. Sykora, Todd A. Ballen, Douglas S. Dunn, Jeffrey M. Florczak, Catherine A. Leatherdale
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Publication number: 20080118862Abstract: Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.Type: ApplicationFiled: December 20, 2007Publication date: May 22, 2008Inventors: Douglas S. Dunn, Robert L.W. Smithson, Robert T. Krasa, Michael W. Dolezal, Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood
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Patent number: 7166409Abstract: 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: GrantFiled: June 14, 2001Date of Patent: January 23, 2007Assignee: 3M Innovative Properties CompanyInventors: Patrick R. Fleming, Robert J. DeVoe, Catherine A. Leatherdale, Todd A. Ballen, Jeffrey M. Florczak
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Patent number: 7068434Abstract: Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the application of radiation to a radiation sensitive material layer adjacent the microlenses, are also disclosed.Type: GrantFiled: July 3, 2001Date of Patent: June 27, 2006Assignee: 3M Innovative Properties CompanyInventors: Jeffrey M. Florczak, Robert T. Krasa, Stephen P. Maki, Richard M. Osgood, III
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Patent number: 7014988Abstract: 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: GrantFiled: June 14, 2001Date of Patent: March 21, 2006Assignee: 3M Innovative Properties CompanyInventors: Robert J. DeVoe, Catherine A. Leatherdale, Patrick R. Fleming, John E. Potts, Jeffrey M. Florczak
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Publication number: 20040223385Abstract: 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: ApplicationFiled: December 12, 2002Publication date: November 11, 2004Inventors: Patrick R. Fleming, Robert J. De Voe, Catherine A. Leatherdale, Todd A. Ballen, Jeffrey M. Florczak
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Publication number: 20040124563Abstract: 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: ApplicationFiled: December 12, 2002Publication date: July 1, 2004Inventors: Patrick R. Fleming, Robert J. DeVoe, Catherine A. Leatherdale, Todd A. Balen, Jeffrey M. Florczak
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Publication number: 20040012872Abstract: 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: ApplicationFiled: December 12, 2002Publication date: January 22, 2004Inventors: Patrick R Fleming, Robert J. DeVoe, Nicholas A Stacey, Catherine A Leatherdale, Robert D. DeMaster, Todd A. Ballen, Jeffrey M Florczak
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Patent number: 6586153Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.Type: GrantFiled: May 2, 2002Date of Patent: July 1, 2003Assignee: 3M Innovative Properties CompanyInventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
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Patent number: 6582876Abstract: Disclosed are thermal transfer elements and processes for patterning solvent-coated layers and solvent-susceptible layers onto the same receptor substrate. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor. The methods offer advantages over conventional patterning techniques such as photolithography, and make it possible to fabricate new organic electroluminescent device constructions.Type: GrantFiled: June 21, 2002Date of Patent: June 24, 2003Assignee: 3M Innovative Properties CompanyInventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
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Publication number: 20020197554Abstract: Disclosed are thermal transfer elements and processes for patterning solvent-coated layers and solvent-susceptible layers onto the same receptor substrate. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor. The methods offer advantages over conventional patterning techniques such as photolithography, and make it possible to fabricate new organic electroluminescent device constructions.Type: ApplicationFiled: June 21, 2002Publication date: December 26, 2002Applicant: 3M Innovative Properties CompanyInventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu