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

Ichiro Yoshida — 4 Patents

EIEisai: 3 patents #344 of 998Top 35%
ECEisai R&D Management Co.: 1 patents #478 of 817Top 60%
Ibaraki, JP: #2,214 of 6,779 inventorsTop 35%
Overall (All Time): #1,227,443 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8476301 Pyrrolidin-3-ylacetic acid derivative Tadashi Okabe, Yasunobu Matsumoto, Nobuhisa Watanabe, Yoshiaki Ohashi, Yuji Onizawa +1 more 2013-07-02
7217723 Heterocyclic compound having oxime group Shuichi Suzuki 2007-05-15
7074801 Nitrogen-containing condensed cyclic compound having a pyrazolyl group as a substituent group and pharmaceutical composition thereof Naoki Yoneda, Yoshiaki Ohashi, Shuichi Suzuki, Mitsuaki Miyamoto, Futoshi MIYAZAKI +7 more 2006-07-11
6784192 Piperidine compound and pharmaceutical composition thereof Fumihiro Ozaki, Toshihiko Kaneko, Mutsuko Tabata, Yoshinori Takahashi, Kazuki Miyazaki +10 more 2004-08-31