Akira Sakamoto

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Valve and manufacturing method thereof
- Patent number 6,959,916
- Issue date Nov 1, 2005
- Hitachi, Ltd.
- Mitsuo Chigasaki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Production of the metallic parts with the alloyed layer containing...
- Publication number 20070081916
- Publication date Apr 12, 2007
- Mitsuo Chigasaki
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Production of the metallic parts with the alloyed layer containing...
- Publication number 20040247477
- Publication date Dec 9, 2004
- Mitsuo Chigasaki
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20030180175
- Publication date Sep 25, 2003
- Hitachi, Ltd.
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20030147769
- Publication date Aug 7, 2003
- Hitachi, Ltd.
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON
Information Patent Application
Valve and manufacturing method thereof
- Publication number 20030132415
- Publication date Jul 17, 2003
- Hitachi, Ltd.
- Mitsuo Chigasaki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20020064678
- Publication date May 30, 2002
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON