TS

Tokuji Sugiyama

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Yamaha: 1 patents #1,232 of 2,001Top 65%
📍 Ibaraki, JP: #1,651 of 6,779 inventorsTop 25%
Overall (All Time): #885,162 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6076388 Rolling mill, hot rolling system, rolling method and rolling mill revamping method Toshiyuki Kajiwara, Yoshio Takakura, Takao Sakanaka, Yasutsugu Yoshimura, Ken Yasuda +1 more 2000-06-20
5768927 Rolling mill, hot rolling system, rolling method and rolling mill revamping method Toshiyuki Kajiwara, Yoshio Takakura, Takao Sakanaka, Yasutsugu Yoshimura, Ken Yasuda +1 more 1998-06-23
5666837 Rolling mill and method of using the same Toshiyuki Kajiwara, Yoshio Takakura, Takao Sakanaka, Yasutsugu Yoshimura, Ken Yasuda +1 more 1997-09-16
5174144 4-High rolling mill Toshiyuki Kajiwara, Hideotoshi Nishi 1992-12-29
5057946 Magnetic disk drive apparatus 1991-10-15
4770021 Working roll shift type rolling mill Kazuo Kobayashi, Hiroshi Ando 1988-09-13