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Hiro, JA
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last 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
Patent number
4,005,094
Issue date
Jan 25, 1977
Sankyo Company Limited
Keisuku Murayama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Piperidine derivatives and their use as stabilizers
Patent number
3,941,744
Issue date
Mar 2, 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-...