RN

Ryosaku Nawata

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
Overall (All Time): #1,289,657 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5514065 Wear- and seizing-resistant roll for hot rolling and method of making the roll Akira Noda, Toshiyuki Hattori 1996-05-07
5484372 Compound roll and method of producing same Kenji Date, Toshiyuki Hattori 1996-01-16
5355932 Method of producing a compound roll Kenji Date, Toshiyuki Hattori 1994-10-18
5305522 Method of producing a compound roll Kiyoshi Furushima, Kenji Date 1994-04-26