Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Sachio Shibata

GRGraphtec: 1 patents #22 of 62Top 40%
TITakeda Chemical Industries: 1 patents #745 of 1,420Top 55%
Tsukuba, JP: #1,315 of 2,818 inventorsTop 50%
Overall (All Time): #2,155,997 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D539340 Print head for printer Michiharu Nishijima 2007-03-27
5538998 Halopropiolamide compound, production and use thereof Yoshihiro Sugihara, Toshiro Yamashita, Koichi Matsumura, Yosei Kuwazuru 1996-07-23