Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824955 | Selenium oxy chloride-pyridine or bipyridine complexes | Hisao Ekimoto, Takao Izawa, Katsutoshi Takahashi, Tokuji Nakatani, Akio Fujii | 1989-04-25 |
| 4803446 | Low noise microwave amplifier | Hiroshi Watanabe | 1989-02-07 |