Tomoyuki Kurumada

Person

Tokyo, JA

People

Patents Grantslast 30 patents

Information Patent Grant
1,3,8-Triazaspiro�4.5!decane-2,4-dione polymer stabilizers
- Patent number 4,097,587
- Issue date Jun 27, 1978
- Sankyo Company, Limited
- Nobuo Soma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilization of polymers by penta- or hexa-substituted 4-piperidin...
- Patent number 4,075,165
- Issue date Feb 21, 1978
- Ciba-Geigy Corporation
- Nobuo Soma
- C07 - ORGANIC CHEMISTRY
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
Stabilization of synthetic polymers
- Patent number 4,061,616
- Issue date Dec 6, 1977
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4,4'-Bipiperidylidene derivatives and their use as stabilizers
- Patent number 4,055,536
- Issue date Oct 25, 1977
- Sankyo Company Limited
- Nobuo Soma
- 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
Stabilization of synthetic polymers
- Patent number 3,984,371
- Issue date Oct 5, 1976
- 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
Process for preparing triacetonamine
- Patent number 3,963,730
- Issue date Jun 15, 1976
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing triacetonamine
- Patent number 3,959,298
- Issue date May 25, 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
Piperidine derivatives and their use as stabilizers
- Patent number 3,940,363
- Issue date Feb 24, 1976
- Sankyo Company Limited
- Keisuke Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4,4-(O-phenylenedioxy)-2,2,6,6-tetramethyl piperidine
- Patent number 3,940,401
- Issue date Feb 24, 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-...

Tomoyuki Kurumada

Person

Patents Grantslast 30 patents

1,3,8-Triazaspiro�4.5!decane-2,4-dione polymer stabilizers

Stabilization of polymers by penta- or hexa-substituted 4-piperidin...

Polymer compositions containing piperidine derivatives as stabilizers

Stabilization of synthetic polymers

4,4'-Bipiperidylidene derivatives and their use as stabilizers

Piperidine derivatives

Novel piperidine derivatives for the stabilization of synthetic pol...

Piperidine-spiro-hydantoin derivatives

Stabilization of synthetic polymers

Piperidine-spiro-hydantoin derivatives and their use as stabilizers

Process for preparing triacetonamine

Process for preparing triacetonamine

Piperidine derivatives and their use as stabilizers

Piperidine derivatives and their use as stabilizers

4,4-(O-phenylenedioxy)-2,2,6,6-tetramethyl piperidine

4-Piperidone derivatives, their preparation and their use as stabil...