Most people say no
There is however considerable debate on account of new clues and evidence suggesting otherwise.
A book by Richard k Wilcox called "Japan's Secret War," reveals fascinating evidence of two competing nuclear weapons projects in Japan during WW2, one led by Dr Yoshio NISHINA and the other for the Navy led by Prof Bunsuku ARAKATSU. Late in the war the two projects were amalgamated into a single project and a laboratory was created at Konan, now known as Hungnam in northern Korea. Soviet Paratroopers captured the laboratory on 22 August 1945 along with six leading scientists and engineers.
A US Military Intelligence officer named David Snell interviewed an officer of the secret police at a Shinto Shrine above Seoul city. This man used a false name and Snell noted the fact. The US Army agreed to keep the officer's real identity secret, but it is recorded that he was treated at the shrine as a VIP. His alias was Capt. Wakabayashi, but in likelihood he was Prince Chichuba.
Wakabayashi stated to Snell that on 12 August Japan successfully detonated a nuclear weapon on one of the small islands near Wonson, Korea.
[There are so many factual answers in the above, it is not worth correcting]
Atomic bombs, not hydrogen..The U.S. in August 1945.
The US made atomic bombs from 1945 to 1992.
The U.S. dropped an atomic bomb on Nagasaki, Japan on August 9, 1945.
Noplace, the US did not have any atomic bombs in 1944. Nobody had atomic bombs in 1944.
In the space of three days in August 1945, the US dropped atomic bombs on two cities in Japan - Nagasaki and Hiroshima.
1945
The US has dropped atomic bombs in 1945 on two Japanese cities, Hiroshima and Nagasaki.
Atomic bombs, not hydrogen..The U.S. in August 1945.
The US made atomic bombs from 1945 to 1992.
August 1945
1945
August 6, 1945
noplace
August 6, 1945
Jacob says that the Atomic Bombs were dropped over Hiroshima and Nagasaki in 1945.
We have learned at how destuctive they can be and that atomic bombs really don't need to be used unless we really need them.
The United States Atomic bombs that were available after bombing Nagasaki on August 9, 1945 were 2.