Toyokazu Yagii

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Otake, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparation of isocyanate compounds
- Patent number 5,914,428
- Issue date Jun 22, 1999
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of aliphatic diisocyanate compounds
- Patent number 5,789,614
- Issue date Aug 4, 1998
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of isocyanate compounds
- Patent number 5,773,643
- Issue date Jun 30, 1998
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing polyurethane
- Patent number 5,138,015
- Issue date Aug 11, 1992
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyether compounds, epoxy resins, epoxy resin compositions, and pr...
- Patent number 4,565,859
- Issue date Jan 21, 1986
- Daicel Chemical Industries, Ltd.
- Takaaki Murai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...