HY

Haruo Yokoyama

RI Railway Technical Research Institute: 1 patents #70 of 233Top 35%
📍 Kokubunji, JP: #513 of 714 inventorsTop 75%
Overall (All Time): #3,795,207 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5303514 Rail grinding apparatus Hirotsugu Oishibashi, Soji Fujimori, Muneyuki Ohara, Akihiro Hosokawa, Kosuke Nagai +1 more 1994-04-19