Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Free-cutting tool steel
- Patent number 6,761,853
- Issue date Jul 13, 2004
- Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho
- Kiyohito Ishida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Free-cutting Ni-base heat-resistant alloy
- Patent number 6,752,883
- Issue date Jun 22, 2004
- Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho
- Kiyohito Ishida
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Corrosion resistant steel
- Patent number 6,667,005
- Issue date Dec 23, 2003
- Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo Kenkyusho
- Kiyohito Ishida
- C21 - METALLURGY OF IRON