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

Mayumi Nakade — 54 Patents

MAMaxell: 39 patents #13 of 437Top 3%
HMHitachi Maxell: 7 patents #125 of 1,211Top 15%
HCHitachi Consumer Electronics Co.: 3 patents #80 of 447Top 20%
Hitachi: 2 patents #13,388 of 28,497Top 50%
HSHitachi Industry & Control Solutions: 1 patents #26 of 84Top 35%
CCCasio Hitachi Mobile Communications Co.: 1 patents #35 of 109Top 35%
LKLenovo Innovations Limited (Hong Kong): 1 patents #28 of 133Top 25%
Overall (All Time): #46,697 of 4,157,543Top 2%
54 Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
8667426 Input apparatus Takashi Matsubara, Tomochika Ozaki, Yujin Tsukada 2014-03-04
8549109 Portable terminal, information processing apparatus, content display system and content display method Takashi Matsubara, Masahiro Yamazaki, Hiroyuki Higaki 2013-10-01
8346049 Captioned video playback apparatus and recording medium Masahiro Yamazaki, Tomochika Ozaki, Yukinori Asada, Takashi Matsubara 2013-01-01
8214459 Portable terminal, information processing apparatus, content display system and content display method Takashi Matsubara, Masahiro Yamazaki, Hiroyuki Higaki 2012-07-03