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last 30 patents
Information
Patent Grant
Photopolymerizable composition and photopolymerizable element
Patent number
5,334,484
Issue date
Aug 2, 1994
Hitachi Chemical Co., Ltd.
Yoshitaka Minami
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photopolymerizable composition and processes using acridine photoin...
Patent number
5,089,377
Issue date
Feb 18, 1992
Asahi Denka Kogyo K.K.
Hajime Kakumaru
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Carbazole photoinitiators for the photopolymerization of unsaturate...
Patent number
5,071,888
Issue date
Dec 10, 1991
Asahi Denka Kogyo K.K.
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted acridine derivatives and application thereof
Patent number
5,045,433
Issue date
Sep 3, 1991
Hitachi Chemical Co., Ltd.
Hajime Kakumaru
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Acridine compound and photopolymerizable composition using the same
Patent number
4,985,564
Issue date
Jan 15, 1991
Hitachi Chemical Co., Ltd.
Hajime Kakumaru
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotria...
Patent number
4,937,348
Issue date
Jun 26, 1990
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing ketocholanates
Patent number
4,917,828
Issue date
Apr 17, 1990
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thermosetting synthetic resin lacquer compositions having improved...
Patent number
4,684,680
Issue date
Aug 4, 1987
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyacetal resin compositions having improved resistance to deterio...
Patent number
4,684,679
Issue date
Aug 4, 1987
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Stabilizer compositions for synthetic resins imparting improved lig...
Patent number
4,681,905
Issue date
Jul 21, 1987
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyhydric alcohol ethers of 2,2,6,6-tetramethyl-4-piperidone ketal...
Patent number
4,525,506
Issue date
Jun 25, 1985
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Light stabilizing N,N,N-tris(2,2,6,6-tetramethyl-4-piperidone ketal...
Patent number
4,500,663
Issue date
Feb 19, 1985
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Copolymer light stabilizers having at least one 2,2,6,6-tetraalkyl...
Patent number
4,499,220
Issue date
Feb 12, 1985
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic ac...
Patent number
4,460,725
Issue date
Jul 17, 1984
William E. Leistner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Synthetic resin compositions containing 2,2,6,6-tetramethyl piperid...
Patent number
4,423,174
Issue date
Dec 27, 1983
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing triacetone amine
Patent number
4,418,196
Issue date
Nov 29, 1983
Adeka Argus Chemical Co., Ltd.
Yutaka Nakahara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers and stabiliz...
Patent number
4,405,736
Issue date
Sep 20, 1983
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-2-Hydroxypropyl piperidines and compositions thereof
Patent number
4,405,737
Issue date
Sep 20, 1983
Adeka Argus Chemical Co., Ltd.
Bunji Hirai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymeric light stabilizers having at least one 2,2,6,6-tetraalkyl...
Patent number
4,404,301
Issue date
Sep 13, 1983
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Synergistic light stabilizer compositions for synthetic resins and...
Patent number
4,396,735
Issue date
Aug 2, 1983
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
2,2,6,6-Tetrasubstituted-4-piperidyl carboxy heterocyclic compounds...
Patent number
RE31261
Issue date
May 31, 1983
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
524 - Synthetic resins or natural rubbers
Information
Patent Grant
2,2,6,6-Tetraalkyl-4-piperidyl-bix-spiro-ethers as light stabilizer...
Patent number
4,378,443
Issue date
Mar 29, 1983
Adeka Argus Chemical Co., Ltd.
Motonobu Minagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers as stabilize...
Patent number
4,351,915
Issue date
Sep 28, 1982
Adeka Argus Chemical Co., Ltd.
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides o...
Patent number
4,336,183
Issue date
Jun 22, 1982
Adeka Argus Chemical Co., Ltd.
Yutaka Nakahara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing a 2,2,6,6-tetraalkyl-4-piperidyl spiro alipha...
Patent number
4,323,684
Issue date
Apr 6, 1982
Naohiro Kubota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
2,2,6,6-Tetraalkyl-4-piperidyl alcohol esters of tetradecylene poly...
Patent number
4,312,804
Issue date
Jan 26, 1982
Argus Chemical Corporation
Motonobu Minagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Glycol carbonate ester stabilizers for synthetic resins
Patent number
4,255,301
Issue date
Mar 10, 1981
Argus Chemical Corporation
Motonobu Minagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine
Patent number
4,252,958
Issue date
Feb 24, 1981
Argus Chemical Corporation
Bunji Hirai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 4-piperidone spiroketal compounds
Patent number
4,250,312
Issue date
Feb 10, 1981
Argus Chemical Corp.
Yutaka Nakahara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 4-piperidone spiroketal compounds
Patent number
4,250,313
Issue date
Feb 10, 1981
Argus Chemical Corp.
Yutaka Nakahara
C07 - ORGANIC CHEMISTRY