Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5245937 | Method and apparatus for burning combustible solid residue from chemical plant | Masao Koyama, Masahiro Inada, Toshiaki Masaoka, Tohoru Abiko, Kenji Takahashi | 1993-09-21 |
| 4999089 | Cracking furnace | Mamoru Hokkedo, Etsuji Yamamoto, Masahiko Yoshida, Yutaka Kitayama | 1991-03-12 |