Inventor

OTOTANI TOHEI

JP15 patents

⚠️ This page may combine multiple inventors who share the name “OTOTANI TOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

METAL RESEARCH CORP

6 patents

US4832742AMay 23, 1989

Method of producing iron-, nickle-, or cobalt-base alloy with low contents of oxygen, sulphur, and nitrogen

METAL RESEARCH CORP14 citations73

MITSUI SHIPBUILDING ENG

5 patents

US5268141ADec 7, 1993

Iron based alloy having low contents of aluminum silicon, magnesium, calcium, oxygen, sulphur, and nitrogen

MITSUI SHIPBUILDING ENG18 citations80

US4820485AApr 11, 1989

Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen

MITSUI SHIPBUILDING ENG5 citations71

US4710481ADec 1, 1987

Method for melting Ti or a high-Ti alloy in CaO refractories

MITSUI SHIPBUILDING ENG7 citations70

US4999053AMar 12, 1991

Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen

MITSUI SHIPBUILDING ENG14 citations68

US4729787AMar 8, 1988

Method of producing an iron; cobalt and nickel base alloy having low contents of sulphur, oxygen and nitrogen

MITSUI SHIPBUILDING ENG4 citations60

OTOTANI TOHEI

3 patents

US4671820AJun 9, 1987

Composite calcium clads for deoxidation and desulfurization from molten steels

OTOTANI TOHEI39 citations89

US4035892AJul 19, 1977

Composite calcium clad material for treating molten metals

OTOTANI TOHEI24 citations79

US4698095AOct 6, 1987

Composite calcium clads for treating molten iron

OTOTANI TOHEI17 citations70

TOHEI OTOTANI

1 patent

US4097268AJun 27, 1978

Method of treating molten ferrous material with composite rods containing Ca

TOHEI OTOTANI8 citations67

OTOTANI TOHEI

METAL RESEARCH CORP

Flexible refining-agent clad wire for refining molten iron group metal

Method for refining molten iron and steels

Clean steel composition

Clean steel

Method of manufacturing clean steel

Method of producing iron-, nickle-, or cobalt-base alloy with low contents of oxygen, sulphur, and nitrogen

MITSUI SHIPBUILDING ENG

Iron based alloy having low contents of aluminum silicon, magnesium, calcium, oxygen, sulphur, and nitrogen

Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen

Method for melting Ti or a high-Ti alloy in CaO refractories

Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen

Method of producing an iron; cobalt and nickel base alloy having low contents of sulphur, oxygen and nitrogen

OTOTANI TOHEI

Composite calcium clads for deoxidation and desulfurization from molten steels

Composite calcium clad material for treating molten metals

Composite calcium clads for treating molten iron

TOHEI OTOTANI

Method of treating molten ferrous material with composite rods containing Ca