Inventor
Masaru Washio
Inventor
Chiba, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Cprimary
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel38%
B22DCasting of metals15%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace15%
B23KSoldering or unsoldering8%
B24BMachines, devices, or processes for grinding or polishing8%
F27BFurnaces, kilns, ovens or retorts in general8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,769,923'Decarburization refining process for chromium-containing molten metal and associated top blowing lance'19985,743,938'Method of decarburizing refining molten steel containing Cr'19985,728,348'Ladle cover for vacuum refining process'19985,221,326'Method of producing ultra-low-carbon steel'19935,152,831'Method of producing ultra-low-carbon steel'19924,955,126'Process for fusing steel slabs in longitudinal direction thereof'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1998Patents assigned to KAWASAKI STEEL CO (6)· patent assignee history
1990–1998Based in Chiba, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KAWASAKI STEEL CO | 6 | 1990–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chiba, JP | 6 | 1990–1998 |