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

Tokyo R & D

Rank (All Time): #20,738 of 106,127Top 20%
42 inventors
30 Patents All Time

Top Inventors at Tokyo R & D All Time

Showing 1–42 of 42 inventors

RankNamePatents
1 Masao Ono 9
2 Minoru Kozaki 7
3 Kunio Tabata 6
3 Nobuhito Ohnuma 6
#5 Issei Yamakoshi 5
#5 Kunihiko Takagi 5
#7 Yoshikazu Koike 4
#8 Atsushi Mizukoshi 3
#8 Hiroshi Ishii 3
#8 Nobuyuki Kasuga 3
#8 Nobuki Sasaki 3
#8 Osamu Watanabe 3
#8 Takashi Aoki 3
#8 Tamotsu Fukazawa 3
#8 Takeo Sato 3
#8 Takeshi Seto 3
#8 Akihito Uetake 3
#18 Atsushi Mamiya 2
#18 Masatoshi Fukuda 2
#18 Satoshi Yamazaki 2
#18 Tatsuya Shimoda 2
#22 Hideki Mori 1
#22 Hiroaki Nakahara 1
#22 Hikokazu Okaguchi 1
#22 Hiroshi Sakurai 1
#22 Hiroko Yoshikawa 1
#22 Jun Hyodo 1
#22 Jun Morimoto 1
#22 Ken Endo 1
#22 Kiyomi Yamasaki 1
#22 Kohichi Tadokoro 1
#22 Masaaki Yoshikawa 1
#22 Naoki Tsuji 1
#22 Nobuto Ohnuma 1
#22 Sakae Takagi 1
#22 Shouzou Hashidume 1
#22 Shigemi Kikuchi 1
#22 Shinji Motojima 1
#22 Shinji Okayama 1
#22 Haruki Torizuka 1
#22 Toru Yosizawa 1
#22 Akifumi Kurita 1