Noriyuki Ohta

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Hiro, JA

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Patents Grantslast 30 patents

Information Patent Grant
Polymer compositions containing piperidine derivatives as stabilizers
- Patent number 4,066,615
- Issue date Jan 3, 1978
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Piperidine derivatives
- Patent number 4,016,168
- Issue date Apr 5, 1977
- Sankyo Company Limited
- Keisuke Murayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Novel piperidine derivatives for the stabilization of synthetic pol...
- Patent number 4,007,158
- Issue date Feb 8, 1977
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Piperidine-spiro-hydantoin derivatives and their use as stabilizers
- Patent number 3,975,462
- Issue date Aug 17, 1976
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-Piperidone derivatives, their preparation and their use as stabil...
- Patent number 3,933,735
- Issue date Jan 20, 1976
- Sankyo Company Limited
- Keisuke Murayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...