The US Navy did not ever "blockage" Japan in the traditional sense, where one nation stations naval forces off another's coast, and declares that no ship from any nation may travel to the blockaded country.
However, what it did do, was initiate a "de-facto" blockage of the Japanese Home Islands via unrestricted submarine warfare. That is, starting in 1942 after the declaration of war following the attack on Pearl Harbor, the US Navy's submarine force attempted to destroy the Japanese Merchant Marine, and thus effectively cripple the Japanese importation of goods, and virtually all trade with Japan was done on Japanese-flagged vessels.
The US Navy was spectacularly successful in this regard. By mid-1944, the Japanese Merchant Marine was effectively extinct, and by 1945, even the coastal freighters which carried goods between Japanese cities had been exterminated.
blockade
If there had been NO attack at Pearl Harbor, there would have to be another reason for war between the US and Japan. Without a reason for war; there would be NO confrontation between the US Navy and the Japanese Navy. If the question is asking: Could the Japanese Navy stop the US Navy in 1941 (which was the year of the beginning of the US involvement in WWII...the Pearl Harbor attack); Yes, the Imperial Navy was MUCH BETTER trained and equipped than any other navy in the world in 1941.
At the beginning of the US Civil War, the US Navy had 90 ships. This does not represent the actual navy in that only 42 were commissioned vessels. It was also the wrong navy for the war the Union had to fight. The navy lacked the equipment and ships for use in coastal and inland waterways that dominated its needed deployment for the war. Any early Union blockade efforts were hampered by this. In addition, the Union lacked ironclad warships.
They retaliated, this was the start of WWII
Then Japan would have taken out the United States navy basically. Historically, the most powerful countries are the ones with the most powerful navy. This would make it hard to even fight in the war outside of the US.
No, they were isolated by the US Navy blockade.
blockade
Japan did not want a war with the US. Japan had over multiple occasions tried to diplomatically solve its differences with the US, but the US did not give an audience. Instead, the US created a blockade cutting off raw materials such as steel and oil from reaching Japan. Japan only had supplies for 6 months of production. the modernized Japan was dependent on its industry. without industry Japanese people had no jobs. If the industry shut down, then their economy would crash with no prospect of recovering. Basically the country of Japan would cease to exist as it did then. Japan had two options. One was to abide by the blockade and cease to exist. The other was to somehow break through the blockade to continue to exist. Japan attacked the US to break the blockade. Japan decided to exist.
The US Navy!!
the US navy
There was little or nothing they could do.
General Winfield Scott is credited with the basic blockade plan, with vital input from Secretary of the Treasury Salmon P. Chase and Secretary of the Navy Gideon Wells. Prioritizing the blockade plans was important as the US Navy constructed more than 500 new ships during the Civil War.
At the beginning of the US Civil War, the US Navy created two blockading squadrons to hamper Rebel ports. One squadron was assigned for the Atlantic East coast and other one to cover the Southern Gulf coast. When the Blockade Board was formed, it divided the two squadrons into four squadrons. The Board believed this reconstruction of naval responsibilities would serve to better serve the Union's blockading policy.
If there had been NO attack at Pearl Harbor, there would have to be another reason for war between the US and Japan. Without a reason for war; there would be NO confrontation between the US Navy and the Japanese Navy. If the question is asking: Could the Japanese Navy stop the US Navy in 1941 (which was the year of the beginning of the US involvement in WWII...the Pearl Harbor attack); Yes, the Imperial Navy was MUCH BETTER trained and equipped than any other navy in the world in 1941.
they were already there, Japan attacked a U.S. navy base, Pearl Harbor
a blockade
The Union navy was mostly used to blockade principal southern ports