Hiroyasu Yamato

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of recovering a lithium chloride
- Patent number 4,919,911
- Issue date Apr 24, 1990
- Idemitsu Petrochemical Company Limited
- Daigo Shirota
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Two-stage process for production of polyarylene sulfides with lithi...
- Patent number 4,910,294
- Issue date Mar 20, 1990
- Idemitsu Petrochemical Company Limited
- Norio Ogata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing polyarylene sulfide with lithium halide catalyst
- Patent number 4,810,773
- Issue date Mar 7, 1989
- Idemitsu Petrochemical Co., Ltd.
- Norio Ogata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...