DR. ROGER A JOHNSON, MD
Medical Practice at Hamline Ave, Saint Paul, MN
License number
Minnesota 017731
Category
Medical Practice
Type
Specialist
Address
Address
2233 Hamline Ave N SUITE# 402, Saint Paul, MN 55113
Phone
(651) 634-4002
(651) 634-4084 (Fax)
(651) 634-4084 (Fax)
Personal information
See more information about ROGER A JOHNSON at radaris.comName
Address
Phone
10501 Wayzata Blvd STE 102, Hopkins, MN 55305
5068 Jennifer Cir APT 14, Hermantown, MN 55811
5100 Weatherhill Dr SW, Rochester, MN 55902
5027 134Th St NW, Clearwater, MN 55320
5004 Schaefer Rd, Minneapolis, MN 55436
Organization information
See more information about ROGER A JOHNSON at bizstanding.comRoger Johnson MD
2233 Hamline Ave N, Saint Paul, MN 55113
Industry:
Psychiatrist
Phone:
(651) 634-4002 (Phone)
Roger Alan Johnson
Professional information
See more information about ROGER A JOHNSON at trustoria.com
Roger Johnson - Woodbury, MN
Roger Johnson - Woodbury, MN
Education:
Metropolitan State University - Richfield, MN
vocational in HISTORY St. Paul - Minneapolis, MN
Master of Science in Project Management St. Mary's University - Minneapolis, MN
Business University of St. Thomas - Saint Paul, MN
Bachelors in Mathematics University of Minnesota - Minneapolis, MN University of Michigan - Ann Arbor, MI
Project Management Professional
vocational in HISTORY St. Paul - Minneapolis, MN
Master of Science in Project Management St. Mary's University - Minneapolis, MN
Business University of St. Thomas - Saint Paul, MN
Bachelors in Mathematics University of Minnesota - Minneapolis, MN University of Michigan - Ann Arbor, MI
Project Management Professional
Roger A Johnson, Roseville MN
Roger A Johnson, Roseville MN
Specialties:
Psychiatrist
Address:
2233 Hamline Ave N, Roseville, MN 55113
Education:
University of Minnesota, Medical School - Doctor of Medicine
San Mateo Medical Center - Residency - Psychiatry
San Mateo Medical Center - Residency - Psychiatry
Board certifications:
American Board of Psychiatry and Neurology Certification in Psychiatry (Psychiatry and Neurology)
Vibration Damper Having Extended Temperature Range And Low Temperature Shock Resistance
Vibration Damper Having Extended Temperature Range And Low Temperature Shock Resistance
US Patent:
5118562, Jun 2, 1992
Filed:
Sep 24, 1990
Appl. No.:
7/587087
Inventors:
Roger W. Johnson - Shoreview MN
William D. Sell - St. Paul MN
Charles D. Wright - Birchwood MN
William D. Sell - St. Paul MN
Charles D. Wright - Birchwood MN
Assignee:
Minnesota Mining and Manufacturing Co. - St. Paul MN
International Classification:
B32B 516
US Classification:
428327
Abstract:
Constrained layer damping structures are often based on viscoelastic layers of iso-octyl acrylate:acrylic acid or analogous copolymers. As the acrylic acid content is increased, the peak damping temperature also increases; unfortunately, however, the copolymer becomes more brittle and susceptible to shock, especially at low temperatures. Incorporating small amounts of rubbery polymer particles (especially core-shell polymers) in the viscoelastic copolymer alleviates this problem.