Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6229581 | Projection type picture display apparatus | Hideki Yamamoto, Tadashi Yoshida, Kazuyuki Shirai, Takayuki Yoshioka, Isao Tomisawa | 2001-05-08 |
| 5826959 | Projection image display apparatus | — | 1998-10-27 |
| 5594591 | Prism system and a liquid crystal projection device | Hideki Yamamoto | 1997-01-14 |
| 5408282 | Projection system for projection TV set | Takashi Nagashima, Yukio Ozaki, Kazuya Akiyama, Takayuki Yoshioka, Saori Wagatsuma | 1995-04-18 |