Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887152 | Message delivery system operable in an override mode upon reception of a command signal | Hiroyuki Kobayashi, Hideo Tomita, Kenichi Kikuchi, Kenji Inoue, Yoshiyuki Kondo +2 more | 1989-12-12 |
| 4866515 | Passenger service and entertainment system for supplying frequency-multiplexed video, audio, and television game software signals to passenger seat terminals | Koichi Tagawa, Masakatsu Toyoshima, Yoshiyuki Kondo | 1989-09-12 |