MA

Masao Arikawa

MM Mitsubishi Mining: 1 patents #886 of 2,247Top 40%
Overall (All Time): #3,944,418 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4716687 Method and apparatus for grinding a rotary body Hidehiko Tsukamoto, Kanji Hayashi, Tsunetaka Sumomogi, Masashi Oya, Junichi Ibushi +6 more 1988-01-05