Hideaki Nagayoshi

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Fukuoka-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing spheroidal graphite cast iron article
- Patent number 5,876,523
- Issue date Mar 2, 1999
- Hitachi Metals, Ltd.
- Hideaki Nagayoshi
- C21 - METALLURGY OF IRON
Information Patent Grant
Spheroidal graphite cast iron for crank shafts and a crank shaft ma...
- Patent number 5,551,995
- Issue date Sep 3, 1996
- Hitachi Metals, Ltd.
- Hideaki Nagayoshi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Spheroidal graphite cast iron member having improved mechanical str...
- Patent number 5,346,561
- Issue date Sep 13, 1994
- Hitachi Metals, Ltd.
- Fumio Obata
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing spheroidal graphite cast iron article
- Patent number 5,186,233
- Issue date Feb 16, 1993
- Hitachi Metals, Ltd.
- Fumio Obata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Heat treatment apparatus for thin spheroidal graphite cast iron pro...
- Patent number 5,129,632
- Issue date Jul 14, 1992
- Hitachi Metals, Ltd.
- Yasuhiro Uzu
- C21 - METALLURGY OF IRON
Information Patent Grant
Thin high-strength article of spheroidal graphite cast iron and met...
- Patent number 4,990,194
- Issue date Feb 5, 1991
- Hitachi Metals, Ltd.
- Fumio Obata
- C21 - METALLURGY OF IRON