Top Inventors at Nippon Soken 2019
| Rank | Name | Patents |
|---|---|---|
| 1 | Hironobu Ishijima | 2 |
| 2 | Mitsuyasu Matsuura | 2 |
| 3 | Motonari Ohbayashi | 2 |
| #4 | Takuya Nomura | 2 |
| #5 | Hidenori Tanaka | 1 |
| #6 | Hiroaki Yuasa | 1 |
| #7 | Ken Tanaka | 1 |
| #8 | Norihito Kimura | 1 |
| #9 | Ryohei Nishizaki | 1 |
| #10 | Shigeki Hasegawa | 1 |
| #11 | Shota Iguchi | 1 |
| #12 | Syuya Kawahara | 1 |
| #13 | Taketo Harada | 1 |
| #14 | Takashi Yamamoto | 1 |
| #15 | Tomoaki Tanaka | 1 |
| #16 | Yuji Ishikawa | 1 |