Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MH

Masahiro Hasumi

Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
Overall (All Time): #1,621,315 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6243236 Magnetic disk apparatus Jinzo Yamamoto, Tomoji Sugawa 2001-06-05
6201667 Magnetic disk drive having a relaying flexible printed circuit sheet Jinzo Yamamoto, Tomoji Sugawa 2001-03-13
6098271 Method for assembling a magnetic disk drive with a relaying flexible printed circuit sheet Jinzo Yamamoto, Tomoji Sugawa 2000-08-08