Shigeru Katayama

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Iwakuni, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyglycidyl ethers of polynuclear polyhydric phenols
- Patent number 4,614,826
- Issue date Sep 30, 1986
- Mitsui Petrochemical Industries, Ltd.
- Shigeru Katayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing hydrocarbon resins having improved color and...
- Patent number 4,230,840
- Issue date Oct 28, 1980
- Mitsui Petrochemical Industries Ltd.
- Shigeru Katayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing hydrocarbon resins having improved color and...
- Patent number 4,105,843
- Issue date Aug 8, 1978
- Mitsui Petrochemical Industries Ltd.
- Yoshiyuki Iwase
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...