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

Kantatsu Co.

Rank (All Time): #2,746 of 106,127Top 3%
32 inventors
289 Patents All Time

Top Inventors at Kantatsu Co. All Time

Showing 1–32 of 32 inventors

RankNamePatents
1 Yoji Kubota 145
2 Hitoshi Hirano 133
3 Kenichi Kubota 132
#4 Tomohiro Yonezawa 65
#5 Masaya Hashimoto 64
#6 Hisao Fukaya 61
#7 Yoshio Ise 44
#8 Yukio Sekine 32
#9 Ichiro Kurihara 26
#10 Sayuri Noda 22
#11 Hisanori Suzuki 9
#11 Shingo Yuza 9
#13 Tohru Ishizaka 7
#14 Koji Nitta 6
#15 Kenichi Kamada 5
#16 Eiji OSHIMA 4
#16 Kazuo Matsuoka 4
#16 Kaoru Yamazaki 4
#19 Sumio Fukuda 3
#20 Shingo Watanabe 2
#21 Hiroshi Watanabe 1
#21 Kazutaka Noborimoto 1
#21 Koji Yoshikawa 1
#21 Makoto Ikeda 1
#21 Nobuyuki Ohtsu 1
#21 Norimichi Shigemitsu 1
#21 Shigeru Endo 1
#21 Takanori Sato 1
#21 Tomio Kusakabe 1
#21 Yoshihito Ishizue 1
#21 Yoshikazu Terai 1
#21 Akio SAKUMA 1