by Otsuka, Ryotatsu
Published in Journal of Japan Institute of Light Metals (30.08.1994)

by OTSUKA, Ryotatsu
Published in Journal of Japan Institute of Light Metals (30.06.1989)

by OTSUKA, Ryotatsu
Published in Journal of Japan Institute of Light Metals (30.09.1982)

by WADA, KENJI, FUKUYAMA, TOSHIAKI, OTSUKA, RYOTATSU
Year of Publication 19.01.2006

by OTSUKA, Ryotatsu, KIKUCHI, Shigeyuki
Published in Journal of Japan Institute of Light Metals (01.03.1985)

by 大塚, 良達
Published in 軽金属 (1989)

by ARAI, Kozo, ONISHI, Toyoji, GOTO, Makio, OTSUKA, Ryotatsu
Published in Journal of Japan Institute of Light Metals (30.07.1977)

by FUJIWARA, HIROYASU, WADA, KENJI, FUKUYAMA, TOSHIAKI, OTSUKA, RYOTATSU
Year of Publication 14.08.2003

by OTSUKA, Ryotatsu, TANIMOTO, Shigemi, TOYODA, Kazuo, SAKAGUCHI, Masashi
Published in Journal of Japan Institute of Light Metals (30.04.1990)

by Otsuka, Ryotatsu
Published in Keikinzoku (1994)

by ZAIMA, Shigeo, ARAI, Kozo, OTSUKA, Ryotatsu, TANIMOTO, Shigemi, TSUKUDA, Ichizo
Published in Journal of Japan Institute of Light Metals (1985)

by TANIMOTO SHIGEMI, TOYODA KAZUO, HIDEO SHINGU, RYOTATSU OTSUKA, SHIGEMI TANIMOTO ET KAZUO TOYODA, SHINGU HIDEO, OTSUKA RYOTATSU
Year of Publication 04.01.1991

by 大塚, 良達
Published in 軽金属 (1982)

by TANIMOTO SHIGEMI, TOYODA KAZUO, OTSUKA RYOTATSU
Year of Publication 10.10.1991

by TANIMOTO SHIGEMI, TOYODA KAZUO, OTSUKA RYOTATSU
Year of Publication 16.03.1991

by FUJIWARA, HIROYASU, ZHANG, JIN, SHINGU, HIDEO, ISHIHARA, KEIICHI, OTSUKA, RYOTATSU
Year of Publication 06.02.1997

by ARAI, Kozo, OTSUKA, Ryotatsu, TANIMOTO, Sigemi, TSUKUDA, Ichizo
Published in Journal of Japan Institute of Light Metals (01.11.1982)

by OTSUKA, Ryotatsu
Published in Keikinzoku (1989)

by 新井, 浩三, 大塚, 良達, 谷本, 繁美, 坂口, 雅司
Published in 軽金属 (1981)

by 財満, 鎮雄, 新井, 浩三, 大塚, 良達, 谷本, 繁美, 佃, 市三
Published in 軽金属 (1983)