Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866515 | Passenger service and entertainment system for supplying frequency-multiplexed video, audio, and television game software signals to passenger seat terminals | Koichi Tagawa, Atsushi Matsuzaki, Yoshiyuki Kondo | 1989-09-12 |