Hiroyuki Ohmura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Alloys strengthened by dispersion of particles of a metal and an in...
- Patent number 4,906,531
- Issue date Mar 6, 1990
- Ryobi Limited
- Hiroyuki Ohmura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...