Top Inventors at Sumitomo (Sei) Brake Systems All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Keita Nakano | 9 |
| 2 | Masato Yoshino | 5 |
| 3 | Katsutoshi Nishizaki | 2 |
| #4 | Makoto Nishikimi | 2 |
| #5 | Masaya Segawa | 2 |
| #6 | Shiro Nakano | 2 |
| #7 | Kazuhiro Kato | 1 |
| #8 | Kaoru Sugita | 1 |
| #9 | Koichi Hashida | 1 |
| #10 | Koichi Okamura | 1 |
| #11 | Masahide Hamada | 1 |
| #12 | Masayuki Yasuda | 1 |
| #13 | Ryouhei Hayama | 1 |
| #14 | Seiji Takahashi | 1 |
| #15 | Takanobu Takamatsu | 1 |
| #16 | Tetsuo Ishikawa | 1 |
| #17 | Yoshiki Matsuzaki | 1 |
| #18 | Yoshihiro Tajima | 1 |