Sadamu Matsumoto

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Patents Grantslast 30 patents

Information Patent Grant
Oil tempered wires
- Patent number 10,760,028
- Issue date Sep 1, 2020
- Sumitomo Electric Industries, Ltd
- Takafumi Uwano
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Heat-resistant alloy wire
- Patent number 6,478,897
- Issue date Nov 12, 2002
- Sumitomo Electric Engineering, Ltd.
- Hiromu Izumida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Oil-tempered wire and method of manufacturing the same
- Patent number 5,904,787
- Issue date May 18, 1999
- Sumitomo Electric Industries, Ltd.
- Sadamu Matsumoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for manufacturing spring having high nitrided properties
- Patent number 5,683,521
- Issue date Nov 4, 1997
- Sumitomo Electric Industries, Ltd.
- Sadamu Matsumoto
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
OIL TEMPERED WIRES
- Publication number 20190055490
- Publication date Feb 21, 2019
- Sumitomo (SEI) Steel Wire Corp.
- Takafumi Uwano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...