Manshi Ohyanagi

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Shiga-Ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composite and method for producing the same
- Patent number 6,451,249
- Issue date Sep 17, 2002
- Ishizuka Research Institute, Ltd.
- Mitsue Koizumi
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Super-abrasive grain-containing composite material and method of ma...
- Patent number 6,171,709
- Issue date Jan 9, 2001
- The Ishizuka Research Institute, Ltd.
- Mitsue Koizumi
- B22 - CASTING POWDER METALLURGY