Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835677 | System for directly and indirectly accessing control registers by different operating systems based upon value of operating system indication bit | Kiyosumi Sato, Yoshihiro Mizushima, Katsumi Ohnishi, Toshio Matsumoto | 1989-05-30 |
| 4654779 | Multiprocessor system including firmware | Toshio Matsumoto | 1987-03-31 |
| 4623962 | Register control processing system | Toshio Matsumoto, Kiyosumi Sato, Yoshihiro Mizushima, Katsumi Ohnishi | 1986-11-18 |
| 4601008 | Data processing system | — | 1986-07-15 |
| 4598402 | System for treatment of single bit error in buffer storage unit | Toshio Matsumoto | 1986-07-01 |
| 4587654 | System for processing machine check interruption | Toshio Matsumoto | 1986-05-06 |