Inventor
Shigeaki Maruhashi
Inventor
Yamaguchi, JP
Overview
Patents· 11 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%
C22CAlloys23%
C21DModifying the physical structure of ferrous metals15%
G01NInvestigating or analysing materials by determining their chemical or physical properties15%
C21BManufacture of iron or steel8%
PatentTitleYear
4,708,783'Apparatus for the determination of silicon in molten metal'19874,657,641'Determination of silicon in molten metal'19874,652,428'Corrosion resistant alloy'19874,594,114'Process for producing strip of corrosion resistant alloy steel'19864,581,066'Corrosion resistant alloy'19864,525,209'Process for producing low P chromium-containing steel'19854,473,412'Annealing steel strip using molten B.sub.2 O.sub.3, SiO.sub.2 Na.sub.2 O, NaF glass bath'19844,391,633'Process for dephosphorization, desulfurization and denitrification of chromium-containing pig iron'19834,314,847'Process for dephosphorization and denitrification of chromium-containing iron'19824,290,803'Process for dephosphorization and denitrification of chromium-containing pig iron'19814,160,664'Process for producing ultra-low carbon stainless steel'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1987Patents assigned to NISSHIN STEEL CO LTD (11)· patent assignee history
1979–1984Based in Tokuyama, JP· patent location history
1981–1987Based in Yamaguchi, JP· patent location history
1985Patents assigned to PACIFIC METALS & CO LTD (1)· patent assignee history
1985Based in Kure, JP· patent location history
1987Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NISSHIN STEEL CO LTD | 11 | 1979–1987 |
| PACIFIC METALS & CO LTD | 1 | 1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yamaguchi, JP | 6 | 1981–1987 |
| Tokyo, JP | 2 | 1987 |
| Tokuyama, JP | 2 | 1979–1984 |
| Kure, JP | 1 | 1985 |