Ryotatsu Otsuka

Person

Kawachinagano-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of purifying metal
- Patent number 7,811,356
- Issue date Oct 12, 2010
- Sharp Kabushiki Kaisha
- Kenji Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Aluminum brazing alloy for cold brazing and method for brazing low-...
- Patent number 6,170,738
- Issue date Jan 9, 2001
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Brazing material for use in a low temperature brazing and method fo...
- Patent number 6,109,510
- Issue date Aug 29, 2000
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for brazing die-cast aluminum material
- Patent number 5,934,546
- Issue date Aug 10, 1999
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Brazeable aluminum alloy cast material and method of brazing the same
- Patent number 5,862,976
- Issue date Jan 26, 1999
- Showa Aluminum Corporation
- Hideo Yamamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for purifying metal
- Patent number 5,736,096
- Issue date Apr 7, 1998
- Sharp Kabushiki Kaisha
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Aluminum alloy for heat exchangers
- Patent number 5,302,342
- Issue date Apr 12, 1994
- Honda Giken Kogyo Kabushiki Kaisha
- Tsuyoshi Kawabe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Corrosion-resistant clad material made of aluminum alloys
- Patent number 5,260,142
- Issue date Nov 9, 1993
- Honda Giken Kogyo Kabushiki Kaisha
- Tsuyoshi Kawabe
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Heat exchanger
- Patent number 4,991,647
- Issue date Feb 12, 1991
- Honda Giken Kogyo Kabushiki Kaisha
- Tsuyoshi Kawabe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of preparing high-purity metal and rotary cooling member for...
- Patent number 4,948,102
- Issue date Aug 14, 1990
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of preparing high-purity metal and rotary cooling member for...
- Patent number 4,854,968
- Issue date Aug 8, 1989
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Apparatus for treating molten metal
- Patent number 4,804,168
- Issue date Feb 14, 1989
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for treating molten aluminum to remove hydrogen gas and non...
- Patent number 4,772,319
- Issue date Sep 20, 1988
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process and apparatus for purifying silicon
- Patent number 4,747,906
- Issue date May 31, 1988
- Showa Aluminum Corporation
- Hideo Shingu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Device for releasing and diffusing bubbles into liquid
- Patent number 4,611,790
- Issue date Sep 16, 1986
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for treating molten aluminum to remove hydrogen gas and non...
- Patent number 4,556,419
- Issue date Dec 3, 1985
- Showa Aluminum Corporation
- Ryotatsu Otsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for producing high-purity aluminum
- Patent number 4,469,512
- Issue date Sep 4, 1984
- Showa Aluminum Corporation
- Hideo Shingu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method of Purifying Metal
- Publication number 20080289150
- Publication date Nov 27, 2008
- Kenji Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Silicon purifying method, slag for purifying silicon and purified s...
- Publication number 20050139148
- Publication date Jun 30, 2005
- Hiroyasu Fujiwara
- C01 - INORGANIC CHEMISTRY

Ryotatsu Otsuka

Person

Patents Grantslast 30 patents

Method of purifying metal

Aluminum brazing alloy for cold brazing and method for brazing low-...

Brazing material for use in a low temperature brazing and method fo...

Process for brazing die-cast aluminum material

Brazeable aluminum alloy cast material and method of brazing the same

Apparatus for purifying metal

Aluminum alloy for heat exchangers

Corrosion-resistant clad material made of aluminum alloys

Heat exchanger

Method of preparing high-purity metal and rotary cooling member for...

Method of preparing high-purity metal and rotary cooling member for...

Apparatus for treating molten metal

Process for treating molten aluminum to remove hydrogen gas and non...

Process and apparatus for purifying silicon

Device for releasing and diffusing bubbles into liquid

Process for treating molten aluminum to remove hydrogen gas and non...

Process for producing high-purity aluminum

Patents Applicationslast 30 patents

Method of Purifying Metal

Silicon purifying method, slag for purifying silicon and purified s...