Did the Japanese ever make a Frankenstein movie?

Yes, the Japanese made a Frankenstein movie called Frankenstein Conquers the World (1966).

What was the mummy’s name in The Mummy (1932)? The mummy's name was Im-Ho-Tep, aka Ardeth Bey, played by Boris Karloff. In the four sequels that followed, The Mummy's Hand (1940), The Mummy's Tomb (1942), The Mummy's Ghost (1944), and The Mummy's…
On what day does The Time Machine (1960) open? The Time Machine (1960) opened on December 31, 1899.
What was served at Babette’s feast? In the movie Babette's Feast (1987), the spread included, among other things, fresh terrapin soup, quail in vol-au-vents, blinis, caviar, and baba au rhum.
Who was Robin in Robin and the Seven Hoods (1964)? Robbo, the character "inspired" by Robin Hood, was played by Frank Sinatra. Among the hoods were Dean Martin as Little John and Sammy Davis, Jr., as Will.
What Roger Corman produced horror movies featured both Jack Nicholson and Boris Karloff? Nicholson and Karloff appeared together in two movies filmed on the same sets, one right after the other: The Raven (1963) and The Terror (1963).