Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144620 | Cross-connection network using time switch | Yasutoshi Ishizaki, Rikio Maruta, Yoshinori Rokugo, Kuniyasu Hayashi | 1992-09-01 |
| 4935921 | Cross-connection network using time switch | Yasutoshi Ishizaki, Rikio Maruta, Yoshinori Rokugo, Kuniyasu Hayashi | 1990-06-19 |
| 4215415 | Recursive digital filter comprising a circuit responsive to first sum and feedback sign bits and second sum sign and integer bits for detecting overflow in the second sum | Akira Kanemasa | 1980-07-29 |