Tokai Denka Kogyo Kabushiki Kaisha

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of pure alkanesulfonic acids
- Patent number 5,912,385
- Issue date Jun 15, 1999
- Tokai Denka Kogyo Kabushiki Kaisha
- Kazuyoshi Kushibe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilized sodium percarbonate composition
- Patent number 5,340,496
- Issue date Aug 23, 1994
- Tokai Denka Kogyo Kabushiki Kaisha
- Kanji Sato
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Chemical solubilizing agent for tin or tin alloy
- Patent number 5,223,087
- Issue date Jun 29, 1993
- Tokai Denka Kogyo Kabushiki Kaisha
- Katsutoshi Itani
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for stabilizing acidic aqueous hydrogen peroxide solution co...
- Patent number 5,211,927
- Issue date May 18, 1993
- Tokai Denka Kogyo Kabushiki Kaisha
- Katsutoshi Itani
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing styrene oxide
- Patent number 5,155,241
- Issue date Oct 13, 1992
- Tokai Denka Kogyo Kabushiki Kaisha
- Keiichi Nishibe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-soluble thiourea dioxide derivatives and process for preparin...
- Patent number 5,149,871
- Issue date Sep 22, 1992
- Tokai Denka Kogyo Kabushiki Kaisha
- Hirohisa Nitoh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Histidine-hydrogen peroxide adduct and process for preparing same
- Patent number 5,122,354
- Issue date Jun 16, 1992
- Tokai Denka Kogyo Kabushiki Kaisha
- Kuniro Tsuji
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing high purity hydrogen peroxide
- Patent number 5,055,286
- Issue date Oct 8, 1991
- Tokai Denka Kogyo Kabushiki Kaisha
- Satoru Watanabe
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing styrene oxide
- Patent number 5,041,569
- Issue date Aug 20, 1991
- Tokai Denka Kogyo Kabushiki Kaisha
- Saburo Enomoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Surface-treating agents for copper and copper alloy
- Patent number 5,030,373
- Issue date Jul 9, 1991
- Tokai Denka Kogyo Kabushiki Kaisha
- Toshiya Kimura
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for preparing thiourea dioxide derivatives
- Patent number 4,943,661
- Issue date Jul 24, 1990
- Tokai Denka Kogyo Kabushiki Kaisha
- Hirohisa Nitoh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of activating thiourea dioxide
- Patent number 4,610,802
- Issue date Sep 9, 1986
- Tokai Denka Kogyo Kabushiki Kaisha
- Koichiro Fujiyasu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for isolating 4,4-dihydroxydiphenyl sulfone from a mixture...
- Patent number 4,382,147
- Issue date May 3, 1983
- Tokai Denka Kogyo Kabushiki Kaisha
- Hirotsugu Kitamura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of dyeing fibrous products
- Patent number 4,244,690
- Issue date Jan 13, 1981
- Tokai Denka Kogyo Kabushiki Kaisha
- Kanji Sato
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Dyeing method for fibrous products
- Patent number 4,240,791
- Issue date Dec 23, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Kanji Sato
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Method of recovering thiourea dioxide
- Patent number 4,238,411
- Issue date Dec 9, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osami Ohura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing thiourea dioxide
- Patent number 4,235,812
- Issue date Nov 25, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osamu Fujimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing thiourea dioxide
- Patent number 4,233,238
- Issue date Nov 11, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osami Ohura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of stabilizing an alkaline aqueous solution of thiourea dioxide
- Patent number 4,197,256
- Issue date Apr 8, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Kanji Sato
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing pyrazines
- Patent number 4,097,478
- Issue date Jun 27, 1978
- Tokai Denka Kogyo Kabushiki Kaisha
- Kanji Sato
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of treating surface of copper and its alloys
- Patent number 4,040,863
- Issue date Aug 9, 1977
- Tokai Denka Kogyo Kabushiki Kaisha
- Koji Kitamura
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of chemically polishing copper and copper alloy
- Patent number 3,948,703
- Issue date Apr 6, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Kazuyoshi Kushibe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of low-temperature activation of peroxides
- Patent number 3,948,795
- Issue date Apr 6, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Yasumasa Kawabe
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Etching solutions for copper and copper alloys and etching process...
- Patent number 3,939,089
- Issue date Feb 17, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Akira Matsumoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Copper and copper alloy etching solutions and process
- Patent number 3,936,332
- Issue date Feb 3, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Akira Matsumoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Tokai Denka Kogyo Kabushiki Kaisha

Organization

Patents Grantslast 30 patents

Process for the production of pure alkanesulfonic acids

Stabilized sodium percarbonate composition

Chemical solubilizing agent for tin or tin alloy

Method for stabilizing acidic aqueous hydrogen peroxide solution co...

Process for preparing styrene oxide

Water-soluble thiourea dioxide derivatives and process for preparin...

Histidine-hydrogen peroxide adduct and process for preparing same

Process for preparing high purity hydrogen peroxide

Process for preparing styrene oxide

Surface-treating agents for copper and copper alloy

Process for preparing thiourea dioxide derivatives

Method of activating thiourea dioxide

Process for isolating 4,4-dihydroxydiphenyl sulfone from a mixture...

Method of dyeing fibrous products

Dyeing method for fibrous products

Method of recovering thiourea dioxide

Process for preparing thiourea dioxide

Process for preparing thiourea dioxide

Method of stabilizing an alkaline aqueous solution of thiourea dioxide

Process for preparing pyrazines

Method of treating surface of copper and its alloys

Method of chemically polishing copper and copper alloy

Method of low-temperature activation of peroxides

Etching solutions for copper and copper alloys and etching process...

Copper and copper alloy etching solutions and process