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

Yuko Matsui

Hitachi: 42 patents #441 of 28,497Top 2%
FUFujifilm: 6 patents #1,361 of 4,519Top 35%
SLShiseido Company, Limited: 3 patents #241 of 1,112Top 25%
MCMorinaga & Co.: 2 patents #7 of 83Top 9%
NONof: 1 patents #246 of 561Top 45%
TJTransphorm Japan: 1 patents #12 of 26Top 50%
Yokohama, CA: #72 of 287 inventorsTop 30%
Overall (All Time): #47,409 of 4,157,543Top 2%
54 Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
7447843 Storage system with independently adjustable cache memory partitions Atushi Ishikawa 2008-11-04
7421547 Storage system and storage control method without requiring formatting of storage device Junji Ogawa 2008-09-02
7117340 Storage system control method, storage system, and storage apparatus Koji Nagata 2006-10-03
7013380 Storage system control method, storage system, and storage apparatus Koji Nagata 2006-03-14