Yes. The Northrop 3A fighter and its derivatives—the Vought V-141 and V-143—would make for really cool fighters for the USA. Additionally, the Vought AXV1 could be unique, as it could hypothetically be equipped with Japanese bombs and machine guns.
+1 to import.

Makes sense why they got the plane and the license as there idea was to take concepts from it. Though its connected to the whole lie that Japan could only copy and not come up with there own designs. One thing we do forget is Japan did import lots of samples of equipment where possible Japan had a thing with Czechia and American guns testing and making there own versions but going nowhere with it.
You know, most countries did that. Half—if not more—of Soviet industry during WWII existed thanks to the USA. It’s standard practice to buy something from someone else just to see how it’s made. Look at Chinese cars. It was the Germans who showed them how to build cars, and now they’re crying about it.
Chinese car industry more or less funny enough has more in relation to iPhone production then German cars (Germany was less interested in electric vehicles) China is also expanding into Hydrogen Vehicles for heavy machinery like tractors (got the base tech from South Korea which they got from Japan which Japan got from NASA) but yes if you can get a sample by legal means or by hook and crook you do that. Likely somewhere mainland China has a Abrams tank (so many exports) Fire arms are much easier as you can funny enough argue its not for military and sell the weapons.
Japan though had a clear history for there aerospace leading up to WW2 strategically buying production license for aircraft if there is a valuable technology they liked somewhere in there. A modern example the distribution of Titanium technologies can be by part connected to the export of production license of the Swiss PSH 77 helmet.