Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879041 | Process for producing ultra-pure water and process for using said ultra-pure water | Hideaki Kurokawa, Akira Yamada, Yasuo Koseki, Harumi Matsuzaki, Katsuya Ebara +5 more | 1989-11-07 |
| 4806131 | Gasification process for coal gasification furnace and apparatus therefor | Atsushi Morihara, Tomohiko Miyamoto, Shuntaro Koyama, Shunsuke Nogita | 1989-02-21 |