Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6404548 | Reflection type screen for projectors | Koji Tatsuki, Hideo Takamoto | 2002-06-11 |
| 6297905 | Portable screen assembly | Hideo Takamoto, Kazuharu Seki | 2001-10-02 |
| 6249377 | Portable screen assembly | Hideo Takamoto, Kazuharu Seki | 2001-06-19 |
| 5760954 | Reflective type screen for a polarizing projector | Koji Tatsuki, Takaaki Kato, Hideo Takamoto | 1998-06-02 |