Christopher S Olson

US Patent:

7633293, Dec 15, 2009

Filed:

May 3, 2007

Appl. No.:

11/800055

Inventors:

Christopher C. Olson - Minneapolis MN, US
J. Thomas Vaughan - Stillwater MN, US
Anand Gopinath - Wayzata MN, US

Assignee:

Regents of the University of Minnesota - Minneapolis MN

International Classification:

G01V 3/00

US Classification:

324318, 324309

Abstract:

Technology for controlling non-uniformity in the Bfield includes selecting the phase, magnitude, frequency, time, or spatial relationship among various elements of a multi-channel excitation coil in order to control the radio frequency (RF) power emanating from the coil antenna elements. Non-uniformity can be used to steer a constructively interfering Bfield node to spatially correlate with an anatomic region of interest. A convex (quadratically constrained quadratic problem) formulation of the Blocalization problem can be used to select parameters for exciting the coil. Localization can be used in simulated Finite Difference Time Domain Bfield human head distributions and human head phantom measurement.

US Patent:

59425695, Aug 24, 1999

Filed:

Aug 31, 1998

Appl. No.:

9/143757

Inventors:

Eugene R. Simmons - Vadnais Heights MN
Kevin J. Sweeney - Mahtomedi MN
Jeffrey S. Lindquist - Cottage Grove MN
Christopher E. Olson - Blue Ash OH
Freddie C. Carter - West Paducah KY
James R. Farmer - Johnston City IL

Assignee:

H.B. Fuller Licensing & Financing, Inc. - St. Paul MN

International Classification:

B29C 4738
B29C 4760
C08L 9106
C08L 9304

US Classification:

524487

Abstract:

A polymeric composition in pellet form comprising a tacky hot melt composition, comprising a) from about 5% by weight to about 90% by weight of a thermoplastic polymer, b) from about 0% by weight to about 65% by weight of a tackifying resin, c) from about 0% to about 50% by weight of a plasticizer, d) up to about 2% by weight of an antioxidant, and a pelletizing aid, wherein the tacky hot melt composition has some minimum amount of tackifier or plasticizer and is a pressure sensitive adhesive having a storage modulus, G', at about 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2, and each pellet has a substantially tack-free surface. This invention further discloses a polymeric composition in pellet form suitable for molding articles. The composition comprises a tacky hot melt composition comprising at least one high molecular weight triblock copolymer of the general configuration A-B-A and a plasticizer and a pelletizing aid. The pelletizing aid substantially surrounds the tacky composition such that the molded articles are substantially free from surface tack.

US Patent:

6120899, Sep 19, 2000

Filed:

Oct 8, 1998

Appl. No.:

9/168830

Inventors:

Janelle C. Cameron - Mendota Heights MN
Carolyn A. Fischer - Stillwater MN
Nicholas C. Lehman - Maple Grove MN
Jeffrey S. Lindquist - Maple Grove MN
Christopher E. Olson - Woodbury MN
Steve A. Fox - Hickory NC

Assignee:

H. B. Fuller Licensing & Financing Inc. - St. Paul MN

International Classification:

B32B 2708

US Classification:

428407

Abstract:

This invention relates to a hot melt adhesive composition in pellet form. The hot melt adhesive composition is pressure sensitive, having a storage modulus, G', at 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2. The pellets are coated with a pelletizing aid on the surface at a concentration preferably ranging from about 1 wt-% to about 30 wt-%. The pelletizing aid is a hot melt adhesive component or a material which does not substantially adversely affect the adhesive properties. The pellets are free-flowing and have a substantially tack-free surface.

US Patent:

62387324, May 29, 2001

Filed:

May 31, 2000

Appl. No.:

9/583937

Inventors:

Janelle C. Cameron - Mendota Heights MN
Carolyn A. Fischer - Stillwater MN
Nicholas C. Lehman - Maple Grove MN
Jeffrey S. Lindquist - Maple Grove MN
Christopher E. Olson - Woodbury MN
Steve A. Fox - Hickory NC

Assignee:

H. B. Fuller Licensing & Financing Inc. - St. Paul MN

International Classification:

B05D 510

US Classification:

4272082

Abstract:

This invention relates to a hot melt adhesive composition in pellet form. The hot melt adhesive composition is pressure sensitive, having a storage modulus, G', at 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2. The pellets are coated with a pelletizing aid on the surface at a concentration preferably ranging from about 1 wt-% to about 30 wt-%. The pelletizing aid is a hot melt adhesive component or a material which does not substantially adversely affect the adhesive properties. The pellets are free-flowing and have a substantially tack-free surface.

US Patent:

54925991, Feb 20, 1996

Filed:

May 18, 1994

Appl. No.:

8/245651

Inventors:

Christopher C. Olson - Maplewood MN
Ramesh C. Kumar - Maplewood MN
John C. Chang - New Brighton MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

D21H 1743
D21H 1744

US Classification:

162137

Abstract:

Treated cellulose-based substrate, e. g. , paper, having improved release properties and methods of making such treated substrate are disclosed. The treated substrate is coated with a primer coating comprising a cationic polymer and with a release coating comprising a carboxy- or carboxylate-containing release polymer.

US Patent:

58695559, Feb 9, 1999

Filed:

Nov 18, 1996

Appl. No.:

8/751828

Inventors:

Eugene R. Simmons - Vadnais Heights MN
Kevin J. Sweeney - Mahtomedi MN
Jeffrey S. Lindquist - Cottage Grove MN
Christopher E. Olson - Blue Ash OH
Freddie C. Carter - West Paducah KY
James R. Farmer - Johnston City IL

Assignee:

H. B. Fuller Licensing & Financing Inc. - St. Paul MN

International Classification:

C08K 520
C08K 501
C08L 9304
C08L 5302

US Classification:

524229

Abstract:

A polymeric composition in pellet form comprising a tacky hot melt composition, comprising a) from about 5% by weight to about 90% by weight of a thermoplastic polymer, b) from about 0% by weight to about 65% by weight of a tackifying resin, c) from about 0% to about 50% by weight of a plasticizer, d) up to about 2% by weight of an antioxidant, and a pelletizing aid, wherein the tacky hot melt composition has some minimum amount of tackifier or plasticizer and is a pressure sensitive adhesive having a storage modulus, G', at about 25. degree. C. , of less than about 5. times. 10. sup. 6 dynes/cm. sup. 2, and each pellet has a substantially tack-free surface. This invention further discloses a polymeric composition in pellet form suitable for molding articles. The composition comprises a tacky hot melt composition comprising at least one high molecular weight triblock copolymer of the general configuration A-B-A and a plasticizer and a pelletizing aid. The pelletizing aid substantially surrounds the tacky composition such that the molded articles are substantially free from surface tack.