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

Eiki Ishijima

MAMaxell: 2 patents #227 of 437Top 55%
HMHitachi Maxell: 1 patents #659 of 1,211Top 55%
Ibaraki, JP: #2,661 of 6,779 inventorsTop 40%
Overall (All Time): #1,450,132 of 4,157,543Top 35%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10782604 Projection-type video display apparatus Shinro Inui, Hidemi Yamada 2020-09-22
10642137 Projection-type image display device Shinro Inui, Hiroshi Oshima, Nobuki Matsui 2020-05-05
D790621 Lamp for projector Hiroshi Oshima, Shinro Inui 2017-06-27