OU

Osamu Umezawa

JM Japan As Represented By Director General Of National Research Institute Of Metals: 1 patents #1 of 19Top 6%
📍 Ibaraki, JP: #235 of 769 inventorsTop 35%
Overall (2002): #143,744 of 266,432Top 55%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6464807 Production method of ultra fine grain steel Shiro Torizuka, Kaneaki Tsuzaki, Kotobu Nagai 2002-10-15