Top Inventors at Hitachi Air Conditioning Systems Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Susumu Nakayama | 4 |
| 2 | Kenji Matsumura | 2 |
| 3 | Kenji Tojo | 2 |
| #4 | Daisuke Kuboi | 1 |
| #5 | Hiroyuki Imamura | 1 |
| #6 | Hirokatsu Kohsokabe | 1 |
| #7 | Hitoshi Matsushima | 1 |
| #8 | Hiroaki Tsuboe | 1 |
| #9 | Kazuto Higa | 1 |
| #10 | Kazuo Sakurai | 1 |
| #11 | Kazumoto Urata | 1 |
| #12 | Keiji Tanaka | 1 |
| #13 | Kiyoshi Fukatsu | 1 |
| #14 | Motoshi Hayashi | 1 |
| #15 | Mutsunori Matsunaga | 1 |
| #16 | Shinya Nakamura | 1 |
| #17 | Shigekazu Nozawa | 1 |
| #18 | Syunsuke Yasunori | 1 |
| #19 | Yasuhiro Hioki | 1 |
| #20 | Yasuro Ohishi | 1 |
| #21 | Yoshikatsu Tomita | 1 |
| #22 | Akira Saruta | 1 |
| #23 | Akira Takenaka | 1 |