James U. Lemke

James U. Lemke
Lemke in 2015
Born(1929-12-26)December 26, 1929
Grand Rapids, Michigan, US
DiedFebruary 22, 2019(2019-02-22) (aged 89)
La Jolla, California, US
Alma mater
  • Illinois Institute of Technology (BS)
  • Northwestern University (MS)
  • U. C. Santa Barbara (PhD)
Occupation(s)Entrepreneur, Inventor, Physicist
SpouseAnn Raiguel Stickley (m.1930)

James "Jim" U. Lemke (December 26, 1929 - February 22, 2019) was an American physicist and entrepreneur who lived in San Diego. He developed magnetic recording and internal combustion engine technologies.

Lemke started six high-tech research & development companies, owned and flew multiple airplanes and was awarded more than 114 U.S. and foreign patents in the fields of information theory, magnetic materials, information storage devices, aviation, and internal combustion engines.

He was a member of the National Academy of Engineering, Fellow of the Institute of Electrical and Electronics Engineers, Fellow of the American Association for the Advancement of Science, Fellow of Eastman Kodak Research Laboratories, Senior Fellow of the California Council on Science and Technology, and a Member of the American Physical Society.

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