Top Inventors at Nihon Kogyo Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Yoshio Kawasumi | 6 |
| 2 | Haruki Sato | 3 |
| 3 | Mitsuo Takahashi | 3 |
| #4 | Hideo Miyazaki | 2 |
| #5 | Hideo Oikawa | 2 |
| #6 | Iwao Kyono | 2 |
| #7 | Masami Kuroki | 2 |
| #8 | Masahiro Tsuji | 2 |
| #9 | Nobuyuki Mori | 2 |
| #10 | Osamu Oda | 2 |
| #11 | Shunichi Kasai | 2 |
| #12 | Takao Amazawa | 2 |
| #13 | Yoshiharu Katoh | 2 |
| #14 | Akio Koyama | 2 |
| #15 | Arata Onozuka | 2 |
| #16 | Hiroshi Tasaki | 1 |
| #17 | Junji Honda | 1 |
| #18 | Kenji Kawai | 1 |
| #19 | Kiyoaki Nishikawa | 1 |
| #20 | Mamoru Yamane | 1 |
| #21 | Nakahachiro Honma | 1 |
| #22 | Shohei WADA | 1 |
| #23 | Susumu Kawauchi | 1 |
| #24 | Tadashi Murakami | 1 |
| #25 | Takashi Ogata | 1 |
| #26 | Toshikazu Okubo | 1 |
| #27 | Toshio Tokairin | 1 |
| #28 | Yasuo Mori | 1 |
| #29 | Nakahachiro Honna | 1 |