Top Inventors at Jx Nippon Mining & Metals 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenta Tsujie | 3 |
| 2 | Akira Miura | 2 |
| 3 | Atsushi Miki | 2 |
| #4 | Hideta Arai | 2 |
| #5 | Hirotoshi Fukunaga | 2 |
| #6 | Hideki Furusawa | 2 |
| #7 | Hironobu Sawatari | 2 |
| #8 | Kotaro Nagatsu | 2 |
| #9 | Kouichi Takemoto | 2 |
| #10 | Koichiro Tanaka | 2 |
| #11 | Masaki Nakano | 2 |
| #12 | Mitsuo Yamashita | 2 |
| #13 | Ryo Fukuchi | 2 |
| #14 | Shuhei Murata | 2 |
| #15 | Takeshi Yanai | 2 |
| #16 | Toru Imori | 2 |
| #17 | Yuki Ori | 2 |
| #18 | Akihiro Kakitani | 1 |
| #19 | Akira Noda | 1 |
| #20 | Akira Yoshimura | 1 |
| #21 | Atsushi Sato | 1 |
| #22 | Haruhiko UDONO | 1 |
| #23 | Hideyuki Takahashi | 1 |
| #24 | Katsuhiro KUDO | 1 |
| #25 | Katsuyuki Tsuchida | 1 |
| #26 | Kentaro Harada | 1 |
| #27 | Koichi Takemoto | 1 |
| #28 | Kunihiro Oda | 1 |
| #29 | Masaru Ota | 1 |
| #30 | Nobuaki Okajima | 1 |
| #31 | Ryuichi Hirano | 1 |
| #32 | Shin-ichi Ogino | 1 |
| #33 | Shojiro Usui | 1 |
| #34 | Takayuki Asano | 1 |
| #35 | Takaaki Hatano | 1 |
| #36 | Takuto Watanabe | 1 |
| #37 | Toshiaki Asahi | 1 |
| #38 | Yasuhiro Yamakoshi | 1 |
| #39 | Yoshifumi Abe | 1 |