YH

Yoshiyuki Hashimasa

SC Sumitomo Special Metals Co.: 1 patents #136 of 262Top 55%
Overall (All Time): #3,572,158 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6187259 Method for preparing rare-earth system sintered magnet Osamu Yamashita, Yoshihisa Kishimoto, Wataru Takahashi, Nobushige Hiraishi, Masakazu Ohkita 2001-02-13