Top Inventors at Hitachi Construction Machinery Co. 1989
Showing 1–31 of 31 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Toichi Hirata | 4 |
| 2 | Shinichi Satoh | 3 |
| 2 | Genroku Sugiyama | 3 |
| #4 | Masami Ochiai | 2 |
| #4 | Takashi Kanai | 2 |
| #4 | Hideaki Tanaka | 2 |
| #7 | Yasuo Hayakawa | 1 |
| #7 | Yasuo Tanaka | 1 |
| #7 | Yoshihiro Hoshino | 1 |
| #7 | Yoichi Kamiyama | 1 |
| #7 | Yuusaku Nozawa | 1 |
| #7 | Yutaka Takano | 1 |
| #7 | Ken Ichiryu | 1 |
| #7 | Ken Murayama | 1 |
| #7 | Kiyoshi Nagasawa | 1 |
| #7 | Koji Nozaki | 1 |
| #7 | Kojiro Ogata | 1 |
| #7 | Kozo Ono | 1 |
| #7 | Kuniaki Yoshida | 1 |
| #7 | Masakazu Haga | 1 |
| #7 | Mitsuo Sonoda | 1 |
| #7 | Morio Oshina | 1 |
| #7 | Sakae Takeda | 1 |
| #7 | Shigetaka Nakamura | 1 |
| #7 | Toshio Nonaka | 1 |
| #7 | Chishio Koshimizu | 1 |
| #7 | Eiki Izumi | 1 |
| #7 | Hisahiro Fukuoka | 1 |
| #7 | Hideyo Kato | 1 |
| #7 | Hiroshi Watanabe | 1 |
| #7 | Ichiro Hirami | 1 |