SK

Sumihisa Kotani

HC Hitachi Koki Co.: 1 patents #29 of 116Top 25%
HC Hitachi Powdered Metals Co.: 1 patents #2 of 9Top 25%
Overall (1997): #73,561 of 185,788Top 40%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5682588 Method for producing ferrous sintered alloy having quenched structure Tadayuki Tsutsui, Kei Ishii, Hideo Shikata 1997-10-28