Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712742 | Preparation of deashed high solid concentration coal-water slurry | Takayuki Ogawa, Hideaki Ito, Naokazu Kimura, Hayami Ito, Shuhei Tatsumi +5 more | 1987-12-15 |
| 4593859 | Preparation of deashed high solid concentration coal-water slurry | Kazuhiko Nakaoji, Mitsugu Kamao, Kunizo Shinano, Takashi Kuwabara, Masazumi Ito +5 more | 1986-06-10 |