Top Inventors at Hakuto Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Eiichi Miyake | 3 |
| 2 | Junichi Nakajima | 3 |
| 3 | Seiji Tanizaki | 3 |
| #4 | Yasuhiro Nohata | 2 |
| #5 | Hajime Makita | 1 |
| #6 | Hiroshi Kurumado | 1 |
| #7 | Itsuro Murakami | 1 |
| #8 | Kazuo Tajima | 1 |
| #9 | Kinya Kawakami | 1 |
| #10 | Masao Toriwaki | 1 |
| #11 | Norihiko Onishi | 1 |
| #12 | Ryuichiro Kurane | 1 |
| #13 | Shunichi Kawashima | 1 |
| #14 | Takanori Shibata | 1 |
| #15 | Teruo Horiuchi | 1 |
| #16 | Tomoaki Ishino | 1 |
| #17 | Tomoo Suzuki | 1 |
| #18 | Yoko Imai | 1 |
| #19 | Yoshiharu Yamaguchi | 1 |
| #20 | Akira Togo | 1 |