Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623622 | Memory access control system which prohibits a memory access request to allow a central control unit to perform software operations | Keiko Yuki, Yoso Igi | 1997-04-22 |
| 5404475 | Memory apparatus comprising memory cards with a side detecting signal pin and address assignment circuitry | Kenji Fujisono, Kazuo Sumitani, Yoso Igi, Keiko Kawasaki | 1995-04-04 |
| 5394399 | Communication control system | Keiko Kawasaki, Kazuo Sumitani, Yoso Igi, Kenji Fujisono | 1995-02-28 |
| 5168569 | Bus control system for shortening bus occupation time | Kazuo Sumitani, Kenji Fujisono, Keiko Kawasaki, Yoso Igi | 1992-12-01 |