Micron is a US company based semiconductor company with 34000 employees in 17 different countries, and it manufactures the industry's broadest portfolio of memory and storage technologies: DRAM, NAND, NOR and 3D XPoint memory.
Micron has a large R&D and manufacturing facilities in Hiroshima, where they welcome all kinds of engineers. Japanese skills are not mandatory. Visa's will be provided to successful candidates.