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

Naoko Yamamoto — 30 Patents

DIDisco: 9 patents #67 of 708Top 10%
NCNippon Shokubai Co.: 7 patents #168 of 1,108Top 20%
Canon: 6 patents #8,497 of 19,416Top 45%
KAKao: 4 patents #816 of 3,221Top 30%
Sharp Kabushiki Kaisha: 3 patents #4,164 of 10,731Top 40%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
Hitachi: 1 patents #17,742 of 28,497Top 65%
TOTadahiro Ohmi: 1 patents #22 of 65Top 35%
FCFujisawa Pharmaceutical Co.: 1 patents #444 of 782Top 60%
Overall (All Time): #120,279 of 4,157,543Top 3%
30 Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
6380435 PURIFYING PROCESS OF TETRAKIS(FLUOROARYL)BORATE.MAGNESIUM HALIDE, TETRAKIS(FLUOROARYL)BORATE·ETHER COMPLEX AND PRODUCING PROCESS OF THE SAME, AND PRODUCING PROCESS OF TETRAKIS(FLUOROARYL)BORATE DERIVATIVE Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno 2002-04-30
6291452 1,4-benzodiazepinones and their uses as CCK antagonists Yoshinari Sato, Seiichiro Tabuchi, Hitoshi Mitsui, Ikuyo Katsumi 2001-09-18
6215025 Method for purifying tetrakis (fluoroaryl) borate/magnesium halide, tetrakis (fluoroaryl) borate/ether complex and process for preparing the same, and process for preparing tetrakis (fluoroaryl) borate derivative Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno 2001-04-10
6118026 Stabilizer for (fluoroaryl)borane compound and methods of stabilizing and crystallizing (fluoroaryl)borane compound Hitoshi Mitsui, Tsunemasa Ueno, Ikuyo Ikeno 2000-09-12
6057480 Process for preparing fluoroaryl magnesium derivative and process for preparing (fluoroaryl) borane compound Tsunemasa Ueno, Ikuyo Katsumi, Hitoshi Mitsui 2000-05-02