Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874836 | Thermoplastic wholly aromatic polyimide esters and process for producing the same | Makoto Wakabayashi, Kenichi Fujiwara | 1989-10-17 |
| 4849725 | Multipolar circuit breaker | Shozo Nakano | 1989-07-18 |
| 4813888 | High-frequency cable connector | Toshiaki Tokizane, Takayuki Iseki, Ikuhisa Morimoto, Tooru Yamada | 1989-03-21 |