Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5739875 | Projection unit for projection type display apparatus | Eiichi Toide, Naoki Kawamoto, Toshihide Kaneko | 1998-04-14 |
| 5570140 | Projection unit for projection type display apparatus | Eiichi Toide | 1996-10-29 |
| 5426531 | Transmission screen | — | 1995-06-20 |
| 5144417 | Projection type television apparatus | Hiroshi Tetsuda, Hiroshi Kawamura | 1992-09-01 |
| 5099318 | Three tube color projection television system having at least one tube without an interference filter | Hiroshi Kawamura | 1992-03-24 |
| 5031033 | Projection television apparatus | Hiroshi Kawamura, Hiroshi Tetsuda | 1991-07-09 |
| 4987483 | Projection television set | — | 1991-01-22 |
| 4921330 | Back projection screen in a video projector | Motoo Takahashi | 1990-05-01 |