Top Inventors at Nichireki Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroyuki Ishii | 4 |
| 2 | Haruka Ogawa | 3 |
| 3 | Hitofusa Mitani | 3 |
| #4 | Kazuhiko Shichiku | 3 |
| #5 | Kiyoshige Nishibayashi | 3 |
| #6 | Tadashi Nouchi | 3 |
| #7 | Tsuyoshi Aoyama | 3 |
| #8 | Yoshimasa Hayashi | 3 |
| #9 | Katsutoshi Satou | 1 |
| #10 | Norio Nishizawa | 1 |
| #11 | Shoji Kinoshita | 1 |
| #12 | Takurou Kurokawa | 1 |
| #13 | Akira Ito | 1 |