Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376811 | Solid-state imaging device which generates difference data at different points of time | — | 1994-12-27 |
| 5298692 | Earpiece for insertion in an ear canal, and an earphone, microphone, and earphone/microphone combination comprising the same | Yoshiuki Magara | 1994-03-29 |