I grew up under the care of my uncle in Tokyo. He was promoted to the fourth subject under his own beautiful and elegant, and 1932 became the editor-in-chief of Chess Road magazine after the establishment of Japanese Chess Institute.

1933 autumn, Minoru Kitani and Wu Qingyuan used a new layout in the big-hand competition (that is, the promotion competition); At the end of the year, Yasunaga Hajime joined the research. The following year, Pingfan Society published Go Revolution-New Layout Law, which became a best seller.

1937, Weiqi Chunqiu magazine was published. This publication lasted until 1974.

1962, Japan Amateur Go League was established and became its chairman.

In the Sino-Japanese Weiqi exchange activities, Ernst & Young introduced the rudiment of China Weiqi flow layout to Japanese players, which was further developed by Chen Zude and others.

1980 participated in the world amateur championship as a representative of Japan and won the third place.

1980 won the big warehouse award.

1994 died at the age of 92.