Top Inventors at Isel Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masanori Mochizuki | 8 |
| 2 | Noboru Mochizuki | 7 |
| 3 | Kenji Mochizuki | 4 |
| #4 | Sachio Oki | 2 |
| #5 | Takayuki Takasugi | 2 |
| #6 | Tomotake Hirata | 2 |
| #7 | Yasuyuki Kaneno | 2 |
| #8 | Katsuhiro Tachibana | 1 |
| #9 | Kiichi Kakei | 1 |
| #10 | Tadashi Nishimura | 1 |
| #11 | Takanori Uchida | 1 |