Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8666097 | Electrostatic speaker | Yoshikatsu Matsubara | 2014-03-04 |
| 5282054 | Facsimile equipment having different operations with different power sources | Masao Oana, Yasuichi Kishino | 1994-01-25 |