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Tokyo, JA
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Patents Grants
last 30 patents
Information
Patent Grant
Molten metal pouring control method and apparatus for use in contin...
Patent number
4,077,457
Issue date
Mar 7, 1978
Sumitomo Metal Industries Limited
Moriki Hashio
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for treatment of heavy fraction recovered through thermal cr...
Patent number
4,008,147
Issue date
Feb 15, 1977
Sumitomo Shipbuilding & Machinery Co., Ltd.
Masaki Kondo
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method of upgrading low-grade oils
Patent number
3,959,119
Issue date
May 25, 1976
Sumitomo Shipbuilding & Machinery Co., Ltd.
Masaki Kondo
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Apparatus for automatic and vertical fillet welding
Patent number
3,958,098
Issue date
May 18, 1976
Sumitomo Shipbuilding & Machinery Co., Ltd.
Shimpei Iizuka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Gear with a trochoidal curved disk
Patent number
3,946,620
Issue date
Mar 30, 1976
Sumitomo Shipbuilding & Machinery Co., Ltd.
Kiichiro Yamamoto
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Measuring means for measuring secondary cooling zone roller gaps in...
Patent number
3,937,271
Issue date
Feb 10, 1976
Sumitomo Shipbuilding and Machinery Co. Ltd.
Toyoaki Akiba
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
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last 30 trademarks