Background
Tadao Yokoyama was born on 1901 in Yamanashi Prefecture, Japan.
忠雄 横山
Tadao Yokoyama was born on 1901 in Yamanashi Prefecture, Japan.
Tadao Yokoyama graduated from Tokyo University (1925).
Tadao Yokoyama served with Agriculture and Forestry Ministry. He made inspection tour of sericultural and biological research institutes of Europe and America. He was elected member of Japan Science Council (1950). Director of Sericulture Experiment Station of Agricultural and Forestry Ministry.
(First Edition)
1962