I like those ideas, and the points raised about how Fujikawa Industries could have acquired the Grasshopper trademark from Roxxon would make a lot of sense. Hell, could have it that Fujikawa aims to do the whole "corporate superhero" scam Beyond tried to pull with Spider-Man/Ben Reilly --- but better, insofar as Fujikawa isn't run by interdimensional abominations just playing around with "lower beings" for sadistic kicks.
Yeah, he did make a fair amount of appearances in the 90s Spider-Man comics, if I recall right.