Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4519354 | Fuel supply system in internal combustion engine | Hiroki Matsuoka, Minoru Iwata | 1985-05-28 |
| 4455148 | Method for de-ashing and transportation of coal | Kenichi Nagata, Shigeru Nagamori, Katsumi Satoh, Takashi Yano | 1984-06-19 |