Hane Naoki
Hane Naoki (羽根直樹), born 14 August 1976, is a former holder of the Kisei and Tengen titles. He is the son of Hane Yasumasa.
By winning an Oteai game on 25 July 2002, Hane Naoki gained promotion to 9-dan, and also set a new record for fastest promotion to 9-dan at the Nihon Ki-in: 11 years and 3 months.
He's written a book on his style recently. It's thick and slow; he plays catch up at the end. His rivalry with Takao Shinji is worth looking at.
He is the 2008 challenger for the Honinbo, but as of late June, he is behind 3-0.