Top Inventors at Kaken Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Katsuyoshi Tatenuma | 5 |
| 2 | Yuri Natori | 2 |
| 3 | Atsushi Tanaka | 1 |
| #4 | Hisanori Yatoh | 1 |
| #5 | Junko Matsui | 1 |
| #6 | Juichi Sasada | 1 |
| #7 | Kazuo Yonehara | 1 |
| #8 | Kenji Fujiwara | 1 |
| #9 | Kiyoko Kurosawa | 1 |
| #10 | Kiyoyuki Kurosawa | 1 |
| #11 | Koji Ishikawa | 1 |
| #12 | Kohzoh Makita | 1 |
| #13 | Masao Gotoh | 1 |
| #14 | Masakazu Tanase | 1 |
| #15 | Masanori Yamauchi | 1 |
| #16 | Mizuka Nishino | 1 |
| #17 | Norihiro Ikemoto | 1 |
| #18 | Osamu Arai | 1 |
| #19 | Shinji Takeyasu | 1 |
| #20 | Tanehiko Asada | 1 |
| #21 | Takuji Taguchi | 1 |
| #22 | Taketoshi Takeuchi | 1 |
| #23 | Tomohiko Kawakami | 1 |
| #24 | Tohru Machida | 1 |
| #25 | Tomomi Ueda | 1 |
| #26 | Tsuneyuki Noguchi | 1 |
| #27 | Yasushi Arano | 1 |
| #28 | Yoshiaki Akatsu | 1 |
| #29 | Yoshio Hasegawa | 1 |
| #30 | Yoshiaki KINASE | 1 |