Except they really lost 4. Even for someone who isn't interested in military history, a brief Google search + Wikipedia lookup would have given you the correct answer without much hassle.
Four fleet carriers
3
Japanese battlewagons were present only at a distance; Midway was a battle between aircraft carriers.
Two may have been present at the actual fight, but five, including Yamamoto's flagship the YAMATO were several hundred miles at the rear of the carriers.
The Kaga , Akagi , Hiryu and the Soryu .
Japan lost four aircraft carriers, the USN, One, The Yorktown as I recall. It was the first major Naval battle fought entirely in the air!
Over 248 aircraft carriers were part of the Japanese armada that came to fight at Midway Islands and all of them were sunk. Many more ocean ships were part of their offense against the Midway Islands. This space is too small to list them all so I have attached a link that has many of the names and planes and amounts. Click on the link below.
One : the carrier Yorktown - 5 June 1942 .
Well Japan Lost some many ships and planes and japan had barely any resources so it was probably the reason why japan lost WW2
Answer6 Aircraft Carriers
Four. The Akagi , Soryu , Hiryu , and Kaga.
The U.S. naval forces at Midway consisted of 3 aircraft carriers, 8 cruisers, 16 destroyers, and 19 submarines.