IM

Isao Masaoka

HI Hitachi: 1 patents #311 of 1,214Top 30%
Overall (1982): #57,269 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4348041 Butt welded tubular structure of austenite stainless steel Katsuyuki Imai, Yochiteru Chiba, Masayoshi Kanno, Jiro Kuniya, Hisao Itow 1982-09-07