Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821120 | Dental handpiece with tool holder | Yuichi Shibata | 2004-11-23 |
| 6819497 | Color separation and color synthesis optical system and reflection type projection display apparatus | Shogo MASUDA, Ryuuji Akino, Makoto Ashihara, Takayuki Kashiwagi | 2004-11-16 |
| 6773112 | Color-separating and—recombining optical system and projection display using the same | Tsutou Asakura | 2004-08-10 |
| 6698896 | Color-separating and -recombining optical system and projection display using the same | Tsutou Asakura | 2004-03-02 |