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

Jun Tsukamoto — 28 Patents

TIToray Industries: 15 patents #93 of 3,690Top 3%
Toyota: 7 patents #4,145 of 26,838Top 20%
Seto, JP: #15 of 328 inventorsTop 5%
Overall (All Time): #135,478 of 4,157,543Top 4%
28 Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
4778625 Electroconductive polymer and process for preparation thereof Kiichiro Matsumura, Akio Takahashi 1988-10-18
4673720 Electroconductive polymer and process for preparation thereof Kiichiro Matsumura, Akio Takahashi 1987-06-16
4666736 Highly electroconductive graphite continuous filament and process for preparation thereof Kiichiro Matsumura, Akio Takahashi 1987-05-19