Although there are many fine fountain pen companies in Japan, the three major companies are Sailor, Pilot and Platinum. Here is a brief description of each.

Sailor was started in 1911 by Kyugoro Sakata, an engineer from Hiroshima. Mr. Sakata was first introduced to fountain pens when a British Sailor gave him one as a gift. He immediately decided to create and market fountain pens in Japan. The factory is still in Hiroshima although the head office is now in Tokyo.

Sailor web site (Japanese)
Sailor web site (English)

Pilot was founded in 1918 by Ryosuke Namiki in Tokyo, and its original name was Namiki. Namiki was the first company to apply the ancient maki-e technique to fountain pens. After 1930 they exported Dunhill Namiki maki-e pens through Alfred Dunhill Ltd of London. The company changed its name to Pilot, and pens not marketed through Dunhill were called Pilot. Recently the company has brought back the Namiki name for pens sold outside of Japan. But this time Namiki is a division of Pilot.

Pilot web site (Japanese)
Pilot web site (English)

Platinum had its beginnings in 1919 when Shunichi Nakata opened a pen shop in Okayama prefecture. Five years later he moved to Tokyo and formed the company Nakaya Seisakusho. Later the name of the company was changed to Platinum Pen Company. It is still located in Tokyo, and the current president is Toshihiro Nakata, son of the founder.

Recently the Nakaya name has also been revived by Toshiya Nakata, grandson of the founder. The Nakaya Pen Company employs retired craftsmen from Platinum who specialize in handmade fountain pens.

Platinum web site (English)
Nakaya web site (Japanese and English)