Inventor · disambiguated record
Katsukiyo Marukawa
Also filed as: MARUKAWA KATSUKIYO
6 granted patents·70 citations·filing 1975–1998
83Inventor score
Top patents by PatentIndex Score
6 records- 0184US4280838AProduction of carbon steel and low-alloy steel with bottom blowing basic oxygen furnaceSUMITOMO METAL IND·Filed 1980·Granted Jul 28, 1981·16 cites·13 claims
- 0272US4389246AGasification process of solid carbonaceous materialSUMITOMO METAL IND·Filed 1981·Granted Jun 21, 1983·26 cites·19 claims
- 0349US4225565AProcess for treating waste slagsTOKUYAMA SODA KK·Filed 1979·Granted Sep 30, 1980·8 cites·17 claims
- 0449US4019562AAutomatic molding apparatus with means for controlling pouring rateSUMITOMO METAL IND·Filed 1975·Granted Apr 26, 1977·11 cites·12 claims
- 0542US6435385B1Immersion nozzleFiled 1998·Granted Aug 20, 2002·7 cites·8 claims
- 0636US4292073ASteel making processSUMITOMO METAL IND·Filed 1980·Granted Sep 29, 1981·2 cites·3 claims
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