Top Inventors at Maruzen Petrochemical Co. 1989
Showing 1–10 of 10 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Masatoshi Tsuchitani | 3 |
| 2 | Ryoichi Nakajima | 2 |
| 2 | Sakae Naito | 2 |
| #4 | Yasuhiro Yamada | 1 |
| #4 | Keizo Kase | 1 |
| #4 | Takeshi Imamura | 1 |
| #4 | Tsutomu Idai | 1 |
| #4 | Eiji Takahashi | 1 |
| #4 | Hidemasa Honda | 1 |
| #4 | Kazumasa Ishii | 1 |