Akiyoshi Ishibashi

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Iron-based sintered alloy with dispersed hard particles
- Patent number 7,241,327
- Issue date Jul 10, 2007
- Riken Corporation
- Hiroji Henmi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron-based sintered alloy for use as valve seat and its production...
- Patent number 6,802,883
- Issue date Oct 12, 2004
- Kabushiki Kaisha Riken
- Hiroji Henmi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron base sintered alloy with hard particle dispersion and method f...
- Patent number 5,859,376
- Issue date Jan 12, 1999
- Nissan Motor Co., Ltd.
- Akiyoshi Ishibashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Wear-resistant iron-based sintered alloy and method
- Patent number 5,158,601
- Issue date Oct 27, 1992
- Nissan Motor Co., Ltd.
- Akira Fujiki
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Hard alloy particle dispersion type wear resisting sintered ferro a...
- Patent number 5,080,713
- Issue date Jan 14, 1992
- Kabushiki Kaisha Riken
- Akiyoshi Ishibashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Iron-based sintered alloy with dispersed hard particles
- Publication number 20050252338
- Publication date Nov 17, 2005
- Riken Corporation
- Hiroji Henmi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Iron-based sintered alloy for use as valve seat and its production...
- Publication number 20030230164
- Publication date Dec 18, 2003
- Hiroji Henmi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...