Top Inventors at Cosel Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kuniaki Nagahara | 7 |
| 2 | Masaharu Maesaka | 4 |
| 3 | Toshio Watanabe | 4 |
| #4 | Kazuhiro Horii | 3 |
| #5 | Katsuhiro Koizumi | 3 |
| #6 | Tatsuya Mano | 3 |
| #7 | Toshihisa Miura | 3 |
| #8 | Yuji Hirose | 3 |
| #9 | Mitsuo Nakada | 2 |
| #10 | Takeshi Usuda | 2 |
| #11 | Takahiro Yoneda | 2 |
| #12 | Tetsuo Sugimoria | 2 |
| #13 | Yoshiki Matsuo | 2 |
| #14 | Yuichi Uozu | 2 |
| #15 | Hikaru Kobayashi | 1 |
| #16 | Masanobu Hiramatsu | 1 |
| #17 | Makoto Takashima | 1 |
| #18 | Nakada Mitsuo | 1 |
| #19 | Nobuto Kawataka | 1 |
| #20 | Shinji Moriya | 1 |
| #21 | Takeshi Takayanagi | 1 |
| #22 | Yasuhiro Masuya | 1 |
| #23 | Yoshimichi Hirokawa | 1 |
| #24 | Yuta USUI | 1 |