Ryuzo Tomomatsu

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Propylene resin composition and interior automotive member comprisi...
- Patent number 6,867,252
- Issue date Mar 15, 2005
- Idemitsu Petrochemical Co., Ltd.
- Ryuzo Tomomatsu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polypropylene-based resin composition
- Patent number 5,219,913
- Issue date Jun 15, 1993
- Idemitsu Petrochemical Company, Ltd.
- Ryuzo Tomomatsu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyolefin resin composition containing fibrous inorganic filler
- Patent number 4,987,173
- Issue date Jan 22, 1991
- Idemitsu Petrochemical Co., Ltd.
- Manabu Nomura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...