Top Inventors at Hitachi Taga Engineering All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Eiji Toyoda | 2 |
| 2 | Hiroshi Soutome | 2 |
| 3 | Iko Fukasawa | 2 |
| #4 | Kazuaki Takada | 2 |
| #5 | Takeshi Nakajima | 2 |
| #6 | Youichi Kawakami | 2 |
| #7 | Fumio Tajima | 1 |
| #8 | Hiroshi Kato | 1 |
| #9 | Jun Matsubayashi | 1 |
| #10 | Katsumi Imaizumi | 1 |
| #11 | Kazuhiko Nishiyama | 1 |
| #12 | Keiji Kamio | 1 |
| #13 | Kuniaki Kubokura | 1 |
| #14 | Kunio Miyashita | 1 |
| #15 | Makoto Yajima | 1 |
| #16 | Masayuki Kanari | 1 |
| #17 | Nobuhiko Shima | 1 |
| #18 | Nobutoshi Yoshida | 1 |
| #19 | Takeshi Yamamoto | 1 |
| #20 | Yusuke Iyori | 1 |