Top Inventors at Hiraoka & Co. All Time
Showing 1–15 of 15 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Tsutomu Obayashi | 8 |
| 2 | Kazuhide Ino | 5 |
| 3 | Hideyuki Hiraoka | 3 |
| 3 | Saburo Baba | 3 |
| 3 | Shinobu Watanabe | 3 |
| 3 | Yoshiji Hiraoka | 3 |
| #7 | Chitomi Shimizu | 1 |
| #7 | Kenji Suzuki | 1 |
| #7 | Manabu Imoto | 1 |
| #7 | Sei Yamasaki | 1 |
| #7 | Shinzo Nakai | 1 |
| #7 | Takamasa Nakajima | 1 |
| #7 | Tsutomo Obayashi | 1 |
| #7 | Endou Mituo | 1 |
| #7 | Obayashi Tsutomu | 1 |