by 大塚, 良達
Published in 軽金属 (30.08.1994)

by 大塚, 良達
Published in 軽金属 (1989)

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

by 大塚, 良達
Published in 軽金属 (1982)

by 大塚, 良達, 菊地, 茂幸
Published in 軽金属 (1985)

by 大塚, 良達, 谷本, 繁美, 豊田, 一雄, 坂口, 雅司
Published in 軽金属 (1990)

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 (1985)

by 新井, 浩三, 大塚, 良達, 鈴木, 崇生, 田口, 教平, 豊田, 一雄
Published in 軽金属 (30.04.1982)

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)

by 新井, 浩三, 大塚, 良達, 谷本, 繁美, 佃, 市三
Published in 軽金属 (30.11.1982)

by 新井, 浩三, 大西, 東洋司, 五島, 牧雄, 大塚, 良達
Published in 軽金属 (30.07.1977)

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

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