Top Inventors at Nippon Graphite Fiber All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Yutaka Arai | 7 |
| 2 | Hideyuki Ohno | 3 |
| 3 | Shinichi Takemura | 3 |
| #4 | Tomohiro Nakanishi | 3 |
| #5 | Tsutomu Nakamura | 3 |
| #6 | Yoshiyuki Doken | 3 |
| #7 | Yoshio Soda | 2 |
| #8 | Hajime Nakajima | 1 |
| #9 | Hironobu Takahama | 1 |
| #10 | Katsuya Himuro | 1 |
| #11 | Ken Kobayashi | 1 |
| #12 | Kenji Nishida | 1 |
| #13 | Koichi Hattori | 1 |
| #14 | Masatoshi Furuyama | 1 |
| #15 | Masanori Honda | 1 |
| #16 | Masaki Shimada | 1 |
| #17 | Michiharu Harakawa | 1 |
| #18 | Mikio Shima | 1 |
| #19 | Osamu Kato | 1 |
| #20 | Shigeo Hara | 1 |
| #21 | Tetsuya Sugiyama | 1 |
| #22 | Tsutomu Kihara | 1 |
| #23 | Yoshio Kishimoto | 1 |