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

Akira Tanabe — 57 Patents

RERenesas Electronics: 20 patents #100 of 4,529Top 3%
Mitsubishi Electric: 14 patents #1,823 of 25,717Top 8%
Nec: 7 patents #2,006 of 14,502Top 15%
Sharp Kabushiki Kaisha: 3 patents #4,164 of 10,731Top 40%
TLTokyo Electron Limited: 2 patents #2,602 of 5,567Top 50%
Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
NSNippon Steel: 2 patents #1,308 of 4,423Top 30%
Toyota: 1 patents #15,335 of 26,838Top 60%
MMMitsubishi Mining: 1 patents #886 of 2,247Top 40%
NLNoritake Co., Limited: 1 patents #133 of 334Top 40%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TKTokyo Kogaku Kikai: 1 patents #65 of 143Top 50%
TOTopcon: 1 patents #425 of 684Top 65%
GCGlobal Nuclear Fuel—Japan Co.: 1 patents #2 of 20Top 10%
Overall (All Time): #43,045 of 4,157,543Top 2%
57 Patents All Time

Issued Patents All Time

Showing 51–57 of 57 patents

Patent #TitleCo-InventorsDate
5347550 Core of light-water reactor Ritsuo Yoshioka, Makoto Ueda, Koichi Sakurada, Shouichi Watanabe 1994-09-13
5337095 Ophthalmological instrument Kenjiro Katsuragi 1994-08-09
5262091 Steam injector system Tadashi Narabayashi, Hiroshi Miyano, Osamu Ozaki, Wataru Mizumachi, Akio Shioiri +2 more 1993-11-16
5085411 Apparatus for processing grain-oriented electrical steel strip Yoshinao Tanaka, Takaaki Ohsawa 1992-02-04
4989375 Grinding wheel having high impact resistance, for grinding rolls as installed in place Yoshinori Henmi, Kouichi Saburi, Kanji Hayashi, Takayuki Goto, Hisao Matsushima 1991-02-05
4825807 Apparatus for applying anti-sticking agent on annealed oriented electrical sheet steel in coil Motoharu Nakamura, Takaaki Ohsawa, Hirokazu Haga 1989-05-02
4379625 Operation microscope Yoshihisa Uchiumi 1983-04-12