Kawai Magnetic Engine

Japanese inventor Teruo Kawai patented an electric motor that uses a clever technique to switch the magnetic flux in conjunction with electrical switching to produce an OU motor. The U.S. patent information is: Teruo Kawai, "Motive Power Generating Device," U.S. Patent No. 5,436,518; issued July 25, 1995. Filed June 17, 1993. 16 claims and 19 drawing sheets. Patents cited: 24 U.S., 2 foreign.

Tom Bearden has put the patent drawings on his website here

The Japanese firm Hitachi had Teruo Kawai modify two of their high efficiency motors which were then tested by Hitachi engineers. Hitachi stated that the modified motors had COP of 1.4 and 1.6; here is a report on the tests. The report contains a link to the actual patent as well as a number of references in which Tom Bearden has written about the Kawai motor.