Top Inventors at Yamamoto-Ms Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Wataru Yamamoto | 14 |
| 2 | Katsunori Akiyama | 6 |
| 3 | Fumio Harada | 2 |
| #4 | Kimiko Koiwa | 2 |
| #5 | Masazumi Ishiguro | 2 |
| #6 | Yoshiaki Hoshino | 2 |
| #7 | Chikako Suzuki | 1 |
| #8 | Hajime Kiyokawa | 1 |
| #9 | Tatsuo Yamamoto | 1 |
| #10 | Yutaka Tsuru | 1 |