Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6938284 | Lavatory unit for aircraft | Koichi Kitade, Toshihisa Kasuya | 2005-09-06 |
| 6764046 | Ceiling speaker system of aircraft | Katsuhiko Umeda | 2004-07-20 |
| 5630574 | Torque shock absorber device | — | 1997-05-20 |
| 4893855 | Catch unit for a latch device | — | 1990-01-16 |