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Tomotaka Nagashima
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Tokai, JP
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last 30 patents
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Patent Grant
Method of manufacturing diesel engine valves
Patent number
6,193,822
Issue date
Feb 27, 2001
Daido Steel Co., Ltd.
Tomotaka Nagashima
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
High corrosion resisting alloy for diesel engine valve and method f...
Patent number
6,139,660
Issue date
Oct 31, 2000
Daido Tokushuko Kabushiki Kaisha
Tomotaka Nagashima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High corrosion resisting alloy for diesel engine valve
Patent number
6,039,919
Issue date
Mar 21, 2000
Daido Tokushuko Kabushiki Kaisha
Tomotaka Nagashima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Parts of electronic devices made of ferritic free cutting stainless...
Patent number
6,033,625
Issue date
Mar 7, 2000
Diado Steel Co., Ltd.
Tomotaka Nagashima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Heat resisting steel
Patent number
5,948,182
Issue date
Sep 7, 1999
Daido Tokushuko Kabushiki Kaisha
Shuji Hamano
C21 - METALLURGY OF IRON