Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303806 | Combination writing board/reflecting screen sheet | Hideo Takamoto, Kazuharu Seki | 2007-12-04 |
| 6404548 | Reflection type screen for projectors | Hideo Takamoto, Tetsujiro Omura | 2002-06-11 |
| 5760954 | Reflective type screen for a polarizing projector | Takaaki Kato, Hideo Takamoto, Tetsujiro Omura | 1998-06-02 |