Top Inventors at Maruha Nichiro All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Oda | 4 |
| 2 | Keishi Iohara | 4 |
| 3 | Tatsuya Konishi | 4 |
| #4 | Akira Kamata | 4 |
| #5 | Hisashi Yoshioka | 2 |
| #6 | Kousaku Murata | 2 |
| #7 | Makoto Mitarai | 2 |
| #8 | Shigeyuki Kawai | 2 |
| #9 | Tadao Fukushima | 2 |
| #10 | Takeshi Suzuki | 2 |
| #11 | Tadakazu Tamai | 2 |
| #12 | Yoshinori Takahashi | 2 |
| #13 | Bunzo Mikami | 1 |
| #14 | Fuminori Yoneyama | 1 |
| #15 | Gentaro Kakemizu | 1 |
| #16 | Haruchika Sekido | 1 |
| #17 | Hiroyuki Enari | 1 |
| #18 | Hiroyoshi Koizumi | 1 |
| #19 | Hiroki Ogawa | 1 |
| #20 | Hiroyuki Takeda | 1 |
| #21 | Hiroshi Yokoyama | 1 |
| #22 | Itaru Kawada | 1 |
| #23 | Jun Ohno | 1 |
| #24 | Jun Yamazaki | 1 |
| #25 | Kazuya SHIROTA | 1 |
| #26 | Kenji Funaki | 1 |
| #27 | Masami Okayama | 1 |
| #28 | Masako Toda | 1 |
| #29 | Masanori Tsuruta | 1 |
| #30 | Mitsuru Hosokawa | 1 |
| #31 | Naoki Honda | 1 |
| #32 | Ryusuke NAKASHIMA | 1 |
| #33 | Shin Nishimoto | 1 |
| #34 | Tohru Hayakawa | 1 |
| #35 | Wataru Hashigaya | 1 |
| #36 | Wataru Hashimoto | 1 |
| #37 | Yasuhiro Yokozaki | 1 |
| #38 | Yoshio Okahata | 1 |
| #39 | Yukitoki Fujita | 1 |
| #40 | Akihito Ochiai | 1 |