According to the Japanese website MyCom (in Japanese with Google Translate), Microsoft is making a small, but sentimental change to its corporate name.
In celebrating its 25th year in Japan, Microsoft will be – on February 1st of next year – changing its company name from “Microsoft Co. Ltd.” to “Microsoft Japan Co. Ltd”. Like I said, small change; but it puts more emphasis on the country where the company has some of its roots.
It’s similar to how Nintendo has “Nintendo Co Ltd” and “Nintendo of America” in the US – it is to put more emphasis on the country.
Also part of the change, it will move its headquarters to the Shinagawa district in Tokyo.