RH

Ritsuo Hashimoto

MM Mitsubishi Mining: 2 patents #13 of 236Top 6%
KS Kawasaki Steel: 1 patents #45 of 213Top 25%
Overall (1997): #26,635 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5681527 Molten metal holding apparatus Tatsufumi Aoi, Noriyuki Kawada, Kenichi Unoki, Motomi Nakashima, Kazumasa Mihara 1997-10-28
5611394 Roll charged with heat transfer medium Keiji Mizuta, Yasuyoshi Takeoka, Akira Kishida, Harumasa Muramoto 1997-03-18