HY

Haruo Yokoyama

RI Railway Technical Research Institute: 1 patents #4 of 42Top 10%
📍 Kokubunji, JP: #37 of 105 inventorsTop 40%
Overall (1994): #127,936 of 165,921Top 80%
1
Patents 1994

Issued Patents 1994

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