Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881474 | Pulverized coal combustion apparatus | Osamu Okada, Shigeki Morita, Tadahisa Masai, Shigeru Tominaga, Hiroshi Inada | 1989-11-21 |
| 4807541 | Apparatus for low concentration NOx combustion | Tadahisa Masai, Shigeki Morita | 1989-02-28 |