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

Hisashi Yahagi

GRGraphtec: 1 patents #22 of 62Top 40%
Zama, JP: #389 of 615 inventorsTop 65%
Overall (All Time): #3,921,443 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4806708 Coordinate determining device and method of determining X-Y coordinate position 1989-02-21