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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of arc welding with a ferrite stainless steel welding rod
Patent number
5,254,836
Issue date
Oct 19, 1993
Toyota Jidosha Kabushiki Kaisha
Yuuji Okada
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Flexible tube for automotive exhaust systems
Patent number
5,160,389
Issue date
Nov 3, 1992
Nippon Stainless Steel Co., Ltd.
Shunichiro Akiyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of manufacturing hard-to-work alloy articles such as of inte...
Patent number
5,011,545
Issue date
Apr 30, 1991
Nippon Stainless Steel Co., Ltd.
Senri Ikeda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Sheath heater
Patent number
4,950,873
Issue date
Aug 21, 1990
Sumitomo Metal Industries, Ltd.
Yoshiaki Shida
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Sheath heater
Patent number
4,742,324
Issue date
May 3, 1988
Sumitomo Metal Industries Ltd.
Yoshiaki Shida
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Manufacturing process for plate or forging of ferrite-austenite two...
Patent number
4,659,397
Issue date
Apr 21, 1987
Nippon Stainless Steel Co. Ltd.
Mineo Kobayashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Welding material for austenite stainless steel having high Si conte...
Patent number
4,653,684
Issue date
Mar 31, 1987
Nippon Stainless Steel Co. Ltd.
Kiichi Saito
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Welding material of ferrite-austenite two-phase stainless steel and...
Patent number
4,585,479
Issue date
Apr 29, 1986
Sumitomo Chemical Co., Ltd.
Masahiro Aoki
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High temperature oxidation resistant austenitic steel
Patent number
4,530,720
Issue date
Jul 23, 1985
Sumitomo Metal Industries, Ltd.
Taishi Moroishi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for producing heat-resistant ferritic stainless steel sheet
Patent number
4,484,956
Issue date
Nov 27, 1984
Sumitomo Metal Industries, Ltd.
Yoshiaki Shida
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for improving surface defect of specific steel resistant to...
Patent number
4,381,941
Issue date
May 3, 1983
Sumitomo Chemical Company, Limited
Naoya Ito
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing ferritic stainless steel sheet having goo...
Patent number
4,374,683
Issue date
Feb 22, 1983
Sumitomo Metal Industries, Ltd.
Masao Koike
C21 - METALLURGY OF IRON
Information
Patent Grant
Ferritic stainless steel having good corrosion resistance
Patent number
4,360,381
Issue date
Nov 23, 1982
Sumitomo Metal Industries, Ltd.
Yoshio Tarutani
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High silicon chromium nickel steel for strong nitric acid
Patent number
4,279,648
Issue date
Jul 21, 1981
Sumitomo Chemical Company, Limited
Naoya Ito
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Ferritic stainless steel having improved weldability and oxidation...
Patent number
4,140,526
Issue date
Feb 20, 1979
Sumitomo Metal Industries, Ltd.
Taishi Moroishi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
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