Top Inventors at Mitsui Coke Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Noriaki Ohnishi | 4 |
| 2 | Kenji Fukuda | 3 |
| 3 | Shoichi Oi | 3 |
| #4 | Tetsuo Wada | 3 |
| #5 | Hisashi Murakami | 2 |
| #6 | Isao Kubo | 2 |
| #7 | Shinya Mori | 2 |
| #8 | Tadanobu Takata | 2 |
| #9 | Toshikatsu Ohtsubo | 2 |
| #10 | Detlev Dietrich | 1 |
| #11 | Futao Sakata | 1 |
| #12 | Hermann Franke | 1 |
| #13 | Hiroshi Niimi | 1 |
| #14 | Hidehiko Sugimura | 1 |
| #15 | Horst Lindner | 1 |
| #16 | Keiichi Hirata | 1 |
| #17 | Keiichiro Koba | 1 |
| #18 | Keichiro Koba | 1 |
| #19 | Masao Sakurai | 1 |
| #20 | Mikio Oyabu | 1 |
| #21 | Shigemi Nagayoshi | 1 |
| #22 | Tadashi Komiyama | 1 |
| #23 | Toshiaki Kobayashi | 1 |
| #24 | Tomio Nobe | 1 |
| #25 | Werner Zimmermann | 1 |
| #26 | Reinhard Matthey | 1 |
| #27 | Heinz Limmer | 1 |
| #28 | Henner M/u/ ller | 1 |
| #29 | Dieter Bohlmann | 1 |
| #30 | Hans Poppen | 1 |
| #31 | Werner Frohn | 1 |
| #32 | Hartmut Sch/u/ tter | 1 |
| #33 | Eberhard H/o/ pfner | 1 |