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

Yoko Ichikawa

Denso: 2 patents #4,986 of 11,792Top 45%
NSNippon Soken: 2 patents #546 of 1,540Top 40%
Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #1,584,092 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7446719 Mobile antenna mounted on a vehicle body Yuji Sugimoto, Toshihiro Hattori, Syuichi Kono, Koji Numata, Masaaki Hisada +1 more 2008-11-04
7227353 Angular position determining apparatus with malfunction detector Shigetoshi Fukaya, Naoki Nakane 2007-06-05
D344384 Escalator control box Noboru Yamamoto, Shinji Shibuya, Akira Omachi, Norio Kamoshita, Chuichi Saito 1994-02-15