Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846672 | Combustion cylinder structure for oil burner | Takashi Kawai | 1989-07-11 |
| 4831045 | Rhodanine derivatives, process for their preparation, and aldose reductase inhibitor containing the rhodanine derivatives as active ingredient | Tadao Tanouchi, Akio Ajima, Tetsuya Mohri, Masaki Hayashi, Hiroshi Terashima +2 more | 1989-05-16 |