Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303806 | Combination writing board/reflecting screen sheet | Koji Tatsuki, Kazuharu Seki | 2007-12-04 |
| 6404548 | Reflection type screen for projectors | Koji Tatsuki, Tetsujiro Omura | 2002-06-11 |
| 6297905 | Portable screen assembly | Tetsujiro Omura, Kazuharu Seki | 2001-10-02 |
| 6249377 | Portable screen assembly | Tetsujiro Omura, Kazuharu Seki | 2001-06-19 |
| 5760954 | Reflective type screen for a polarizing projector | Koji Tatsuki, Takaaki Kato, Tetsujiro Omura | 1998-06-02 |
| 5581401 | Portable screen assembly for use with a projector | Tsuyoshi Matsunaga | 1996-12-03 |
| D367490 | Screen for a liquid crystal projector | Tsuyoshi Matsunaga, Akihiro Miyahara | 1996-02-27 |
| D366055 | Screen for a liquid crystal projector | Tsuyoshi Matsunaga, Akihiro Miyahara | 1996-01-09 |