Top Inventors at Ilhwa Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Jong Hwan Sung | 4 |
| 2 | Jae Doo Huh | 3 |
| 3 | Dae Keun Sim | 2 |
| #4 | Min Goo Cho | 2 |
| #5 | Seung Kwon Lee | 2 |
| #6 | Bong Suk Ko | 1 |
| #7 | David C. Konn | 1 |
| #8 | Dong Kin Kim | 1 |
| #9 | Hideo Hasegawa | 1 |
| #10 | Hong-Woo Lee | 1 |
| #11 | Il-Hong Suh | 1 |
| #12 | Kye Jung Shin | 1 |
| #13 | Matsumiya Satoshi | 1 |
| #14 | Masamori Uchiyama | 1 |
| #15 | Sang-Joo Lee | 1 |
| #16 | Satoshi Matsumiya | 1 |
| #17 | Sang Woo Park | 1 |
| #18 | Yong Ho Chung | 1 |
| #19 | Yong Koo Kang | 1 |
| #20 | Yong Zu Kim | 1 |
| #21 | Hasegawa Hideo | 1 |
| #22 | Uchiyama Masamori | 1 |