Koji Toda

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sphere-like magnetite particles and a process for producing the same
- Patent number 4,992,191
- Issue date Feb 12, 1991
- Toda Kogyo Corporation
- Keiso Mori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilization treatment of acicular ferromagnetic iron or iron-allo...
- Patent number 4,251,592
- Issue date Feb 17, 1981
- Toda Kogyo Corp.
- Atushi Takedoi
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing acicular magnetic metallic particle powder
- Patent number 4,133,677
- Issue date Jan 9, 1979
- Toda Kogyo Corp.
- Goro Matsui
- B22 - CASTING POWDER METALLURGY