Top Inventors at Ndc All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masahito Fujita | 5 |
| 2 | Takeshi Sakai | 5 |
| 3 | Hiroyoshi Kikuchi | 3 |
| #4 | Noboru Okabe | 3 |
| #5 | Katsuji Tanizaki | 2 |
| #6 | Masaei Watanabe | 2 |
| #7 | Toru Morimoto | 2 |
| #8 | Toshinaga Ohgaki | 2 |
| #9 | Tsuyoshi Ohsaki | 2 |
| #10 | Hiroto Kosuge | 1 |
| #11 | Hiroyuki Sugawara | 1 |
| #12 | Hiroo Wakiyama | 1 |
| #13 | Katsuhiro Kishida | 1 |
| #14 | Kiyoshi Imai | 1 |
| #15 | Kiyoshi Nakanishi | 1 |
| #16 | Koue Ohkawa | 1 |
| #17 | Masashi Arita | 1 |
| #18 | Masahiko Shioda | 1 |
| #19 | Shin Okamoto | 1 |
| #20 | Syunsuke Suzuki | 1 |
| #21 | Takeshi Shindo | 1 |
| #22 | Toshio Ohkawa | 1 |
| #23 | Tsuneo Ito | 1 |
| #24 | Yasukuni Hasegawa | 1 |
| #25 | Yasushi Saitou | 1 |
| #26 | Yoshitsugu Kanda | 1 |
| #27 | Yoshihiro Maki | 1 |
| #28 | Yukio Kuwayama | 1 |
| #29 | Minoru Kurikawa | 1 |
| #30 | Koue Ohdawa | 1 |
| #31 | Akira Ohgawara | 1 |
| #32 | Akira Matsuyama | 1 |