Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5068156 | Semiconductor package | — | 1991-11-26 |
| 5055911 | Semiconductor device package utilizing a solder flow prevention wall | — | 1991-10-08 |
| 4953784 | Ventilator drive system | Hitoshi Yasufuku | 1990-09-04 |
| 4817708 | Ventilating unit for drawing and exhausting air | Nobuyuki Ono | 1989-04-04 |