YH

Yukio Hirama

HI Hitachi: 2 patents #339 of 2,942Top 15%
Overall (1997): #18,766 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5657655 Tandem mill system and work roll crossing mill Kenichi Yasuda, Kenjiro Narita, Kouji Satou, Yasutsuga Yoshimura, Yoshio Takakura +1 more 1997-08-19
5632177 System and method for manufacturing thin plate by hot working Kenjiro Narita, Ken Yasuda, Kouji Satou, Ken-ichi Yoshimoto, Tadashi Nishino +2 more 1997-05-27