Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7911695 | Reflex-type screen, screen apparatus, and sheet-like article | Hajime Maruta, Tadao Matsuki, Shinya Ishida, Takahito Tanabe | 2011-03-22 |
| 5298984 | Device for positioning the cathode ray tubes in a projection television system | — | 1994-03-29 |
| 5250968 | Image projecting unit | Toshio Maruyama, Ryuichi Okumura | 1993-10-05 |
| 4556283 | Automatic viewing screen | Toshihiro Yoshida, Takashi Kokubo | 1985-12-03 |