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

Keizo Takechi

HIHitachi: 1 patents #17,742 of 28,497Top 65%
HCHitachi High-Tech Electronics Engineering Co.: 1 patents #11 of 59Top 20%
Overall (All Time): #3,492,074 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6801050 Driver circuit integrated with load current output circuit, pin electronics and IC tester having thereof Akio Ohsaki, Yoshihiko Hayashi, Kazuhiko Murata 2004-10-05