Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646382 | Multiple push button switch assembly with multistage actuator interlock | — | 1997-07-08 |
| 5621851 | Method of expanding differential PCM data of speech signals | Kunihiro Yanagi, Motoaki Satoyama, Yoshihiro Mizuno | 1997-04-15 |