Top Inventors at Alpstool Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Mitsuyoshi Yamaguchi | 5 |
| 2 | Shigeo Kuribayashi | 2 |
| 3 | Shuji Miyairi | 2 |
| #4 | Tomokichi Arisaka | 2 |
| #5 | Akio Saiki | 2 |
| #6 | Hiroshi Kuribayashi | 1 |
| #7 | Hiroki Nakajima | 1 |
| #8 | Koji Fujimoto | 1 |
| #9 | Masayoshi Tanaka | 1 |
| #10 | Sukehiro Uehara | 1 |
| #11 | Tatsuhiko KURIYA | 1 |
| #12 | Yoshimori Kondo | 1 |